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ICF-CD555TV
SERVICE MANUAL
Ver 1.0 2004.03

US Model

Model Name Using Similar Mechanism Optical Pick-up Block Name Optical Pick-up Name

ZS-D10 KSM-900AAA KSS-900A

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 6--ohm loads, both channels driven from 100 -- 10 000 Hz; rated 1.4 W per channel-minimum RMS power, with no more than 10 % total harmonic distortion in AC operation.

Radio section
Frequency range: FM: 87.5 -- 108 MHz AM: 530 -- 1 710 kHz

General
Time display: 12-hour system Speaker: 77 mm (3 1 8 inches) dia, 6 Power outputs: 1.8 W + 1.8 W (at 10% harmonic distortion) Power requirements: 120 V AC, 60 Hz Dimensions: Approx. 400 × 104 × 323 mm (w/h/d) (Approx. 15 3 4 × 4 1 8 × 12 3 4 inches) incl. projecting parts and controls Mass: Approx. 4.2 kg (9 lb 4.2 oz) Supplied accessories: Mounting screws (4), Template (1), Spacers (4), Remote commander (1) Design and specifications are subject to change without notice.

TV section
Television system: American TV standard/NTSC Channel coverage: VHF: 2--13/UHF: 14--69/CATV: 1--125 Antenna: 75-ohm external antenna terminal for VHF/UHF Display type: Wide LCD color monitor Size: 7 inches System: TFT active matrix Number of pixel: 336,960 pixels Input: 1 video, 1 audio

CD player section
System: Compact disc digital audio system Laser diode properties: Material: GaAlAs Wavelength: 780 nm Emission duration: Continuous Laser output: Less than 44.6 W (This output is the value measured at a distance of about 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.) dB Frequency response: 20 -- 20 000 Hz Wow and flutter: Below measurable limit

LCD-TV CD KITCHEN CLOCK RADIO
9-877-644-01
2004C05-1 © 2004.03

Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation

ICF-CD555TV

Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, "metallized" knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers' instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The "limit" indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)
To Exposed Metal Parts on Set

CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
About CD-Rs/CD-RWs This unit is compatible with CD-Rs/CD-RWs but playback capability may vary depending on the quality of the disc, the recording device and application software.

0.15 µF

1.5 k

AC voltmeter (0.75 V)

Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

2

ICF-CD555TV SECTION 1 SERVICING NOTES
TABLE OF CONTENTS 1. 2. 3.
3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. 3-8. 3-9. 3-10. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 3 4 The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. · Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! · Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. · Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

SERVICING NOTES .............................................. GENERAL .................................................................. DISASSEMBLY
Disassembly Flow ........................................................... CD Lid, Cabinet (Upper) ................................................ CD Tray Assy .................................................................. CD Tray (Lower) ............................................................. Optical Pick-up Block (KSM-900AAA) ........................ Optical Pick-up (KSS-900A) .......................................... DSP Case (Rear) ............................................................. TV Board ......................................................................... LCD Unit (LCD1) ........................................................... The Cable Processing Method which Connects a MAIN Board and TV Board ........................................

5 5 6 6 7 7 8 8 9 9

4. 5.

TEST MODE ............................................................. 10 ELECTRICAL ADJUSTMENTS
Tuner Section ................................................................. 13 CD Section ..................................................................... 15 Monitor Section .............................................................. 16

6.
6-1. 6-2. 6-3. 6-4. 6-5. 6-6. 6-7. 6-8. 6-9. 6-10. 6-11. 6-12. 6-13. 6-14. 6-15. 6-16. 6-17. 6-18. 6-19. 6-20. 6-21.

DIAGRAMS
Block Diagram ­ CD Section ­ .................................... Block Diagram ­ TUNER Section ­ ............................ Block Diagram ­ MONITOR Section ­ ....................... Block Diagram ­ MAIN Section ­ ............................... Note for Printed Wiring Boards and Schematic Diagrams ....................................................... Printed Wiring Boards ­ CD Section ­ ........................ Schematic Diagram ­ CD Section ­ ............................. Printed Wiring Board ­ TUNER Section ­ .................. Schematic Diagram ­ TUNER Section ­ ..................... Printed Wiring Boards ­ MAIN Section ­ ................... Printed Wiring Boards ­ PANEL Section ­ ................. Schematic Diagram ­ MAIN Section (1/3) ­ ............... Schematic Diagram ­ MAIN Section (2/3) ­ ............... Schematic Diagram ­ MAIN Section (3/3) ­ ............... Schematic Diagram ­ MONITOR Section (1/3) ­ ....... Schematic Diagram ­ MONITOR Section (2/3) ­ ....... Schematic Diagram ­ MONITOR Section (3/3) ­ ....... Printed Wiring Board ­ MONITOR Section (Component Side) ­ ................... Printed Wiring Board ­ MONITOR Section (Conductor Side) ­ ..................... Printed Wiring Boards ­ AMP/POWER SUPPLY Section ­ ............................. Schematic Diagram ­ AMP/POWER SUPPLY Section ­ ............................. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

7.
7-1. 7-2. 7-3. 7-4. 7-5. 7-6. 7-7. 7-8.

EXPLODED VIEWS
Cabinet (Upper) Section ................................................. Cabinet (Front) Section ................................................... Cabinet (Lower) Section-1 .............................................. Cabinet (Lower) Section-2 .............................................. TV Assy Section .............................................................. MAIN Board Section ...................................................... CD Tray Assy Section ..................................................... Optical Pick-up Section (KSM-900AAA) ..................... 53 54 55 56 57 58 59 60

8.

ELECTRICAL PARTS LIST .............................. 61

3

ICF-CD555TV SECTION 2 GENERAL
The preset 3, CLOCK, VOLUME + and CD u buttons have a tactile dot.

This section is extracted from instruction manual.

Fe a t ure s
¥ ¥ ¥ ¥ ¥ Super Slim under the counter LCD-TV 7" wide-screen LCD Color panel display TV/Cable Tuner TV stereo/Auto SAP Function MEGA Xpand function to get the effect of expansion of the sound field ¥ Easy Set, One Touch Cooking Timer ¥ Magnetic Remote Commander

Turn Push

Ba sic Conne c t ions (Conne c t ing Ca ble T V or Ant e nna )
Connecting directly to cable or an antenna

AC power cord

Conne c t ing a V CR a nd T V
Use this hookup if you subscribe to a cable TV System that does not require a cable box.

TIMER indicator

B

Se t t ing t he Cloc k
1 Plug in the kitchen clock radio. 2 Press CLOCK for a few seconds.
You will hear a beep and the hour will start to flash in the display. The display will flash AM 12:00 .

3 Press T I M E SET + or -- until the correct

C

4 Press CLOCK once.
The minutes will flash.

hour appears in the display.

5 Repeat steps 3 and 4 to set the minutes.
After setting the minutes, press CLOCK to start the counting of the seconds, and you will hear two short beeps. To set the current time quickly, hold down TIME SET + or --. 12-hour system: AM 12:00 = midnight In step 5, when you press CLOCK after the minute setting to activate the clock, the seconds start counting from zero.

Size AAA (R03 ) × 2

The number 5 and the VOL + buttons have a tactile dot.

4

ICF-CD555TV SECTION 3 DISASSEMBLY
· This set can be disassembled in the order shown below.

3-1.

DISASSEMBLY FLOW

SET

3-2. CD LID, CABINET (UPPER) (Page 5)

3-7. DSP CASE (REAR) (Page 8)

3-3. CD TRAY ASSY (Page 6)

3-8. TV BOARD (Page 8)

3-4. CD TRAY (LOWER) (Page 6)

3-9. LCD UNIT (LCD1) (Page 9)

3-5. OPTICAL PICK-UP BLOCK (KSM-900AAA) (Page 7)

3-10. THE CABLE PROCESSING METHOD WHICH CONNECTS A MAIN BOARD AND TV BOARD (Page 9)

3-6. OPTICAL PICK-UP (KSS-900A) (Page 7)

Note: Follow the disassembly procedure in the numerical order given.

3-2.

CD LID, CABINET (UPPER)

4 twelve BV tapping screws (B3)

4 ten BV tapping screws (B3)

5 cabinet (upper)

2 two screws

3 CD lid 1 Open the CD tray.

5

ICF-CD555TV

3-3.

CD TRAY ASSY

7 two connectors (CN302, CN303)

7 two connectors (CN501, CN504)

8 terminal (CN304)

7 two connectors (CN502, CN503)

5 flexible flat (17 core) cable (CN403) 6 flexible flat (16 core) cable (CN410) 9 CD tray assy 7 connector (CN409) 2 four BV tapping screws (B3)

7 connector (CN406)

3 Lift up the TUNER board.

4 connector (CNP1)

1 Close the CD tray.

3-4.

CD TRAY (LOWER)

7 insulating sheet (CD tray) 3 pulley

1 belt

6 CD tray (lower)

2 PWH tapping screw (B2.6) 4 gear

5 seven P tapping screws (B2.6)

6

ICF-CD555TV

3-5.

OPTICAL PICK-UP BLOCK (KSM-900AAA)

2 OP flexible board (CNP705) 1 connector (CNP706) 3 insulator

4 optical pick-up block (KSM-900AAA)

3 two insulators

3-6.

OPTICAL PICK-UP (KSS-900A)

4 screw (B1.7 × 4) 5 rack spring (780C)

7 sled screw assy (780E) 1 screw (2 × 8)

8 optical pick-up (KSS-900A)

6 2 holder (780C)

3 gear B (780C)

7

ICF-CD555TV

3-7.

DSP CASE (REAR)

7 five claws 7 four claws

0 slider (DSP) (R) 2 case (shaft) 1 four claws 7 four claws 9 slider (DSP) (L) 6 two screws

8 DSP case (rear)

3 four screws

5

4 Push the button (release).

3-8.

TV BOARD

2 shield (DSP) 1 two screws

3 two connectors (CN1402, CN1404)

5 four screws

8 TV board 6 screw 7 bracket (DSP) 1 two screws 3 three connectors (CN1401, CN1403, CN1801) 1 two screws

1 two screws

4 LCD flexible board (CN1802)

7 bracket (DSP) 6 screw

8

ICF-CD555TV

3-9.

LCD UNIT (LCD1)
1 two screws 2 two brackets (DSP)

3 insulating sheet (DSP)

4 LCD unit (LCD1)

3-10. THE CABLE PROCESSING METHOD WHICH CONNECTS A MAIN BOARD AND TV BOARD
Note: When connecting cable, set it as shown in the figure.

ditch MAIN board (CN501, CN502, CN503, CN504) ditch arm (release)

ditch CABLE cabinet (lower)

adhesive tape

CABLE case (front) CN1401

TV board

CN1403

CN1402

CN1404

9

ICF-CD555TV SECTION 4 TEST MODE
LCD TEST MODE
Procedure: 1. Turn the power ON while pressing simultaneously three keys of [2], [VOLUME --] and [TV/VIDEO]. 2. The microprocessor version will be displayed on the LCD. 3. Press the Z key. The LCD display will become as follows.

LCD display
RADIOVIDEO TV AM WEATHER FM12 PM TIMER
CD
CH MHz kHz
SHUFFLE REP 1 ALL VOL TRACK

MEGABASS
MEGAXpand

REC
MESSAGE

12345

4. The display corresponding to a key is turned off, if a key on the set is pressed. Key Corresponding Table Key CLOCK TIMER 1 2 3 4 5 VOLUME ­ VOLUME + . > BAND s 7 MODE TV/VIDEO TV ON SOUND TV MENU ENTER TV MEGA BASS, MEGA EXPAND REC, MESSAGE, MB number underline 1, 2, 3, 4, 5, N Segment AM, PM, : (colon), TIMER , TIMER LED 1a, 1d, 1e, 1f, 1g 2c, 2f 3e, 3f 4a, 4d, 4e 5b, 5e ­ VOL ­ . (dot), MHz, kHz, CH 6b 6a, 6c, 6d, 6e, 6f, 6g RADIO, WEATHER, FM1, FM2 1b, 1c, 2a, 2b, 2d, 2e, 2g, 3a, 3b, 3c, 3d, 3g, 4b, 4c, 4f, 4g, 5a, 5c, 5d, 5f, 5g CD, TRACK , H , SHUFFLE, REP, 1, ALL VIDEO

5. After all keys on the set were pressed, press the Z key, and the test mode will be released.

10

ICF-CD555TV

CD TEST MODE
Procedure: 1. Connect 120 k and 47 k resistors in parallel to the TP604 on the SIDE-KEY board, and short another end of resistors to the GND, and the CD TEST MODE will be activated. 2. Insert a CD disc. 3. Turn the power ON. Press the 7 key. 4. The following shows the state transition table for each key operation in respective sub modes of CD TEST MODE. 5. Turn the power OFF to release the CD TEST MODE. State Transition Table If each key is pressed in respective sub modes, the mode will transit to the sub modes listed in table.
Mode Main Sub Description LCD
s 7 > .

Key
BAND TV ON > . Processing end Long pressed

INT STOP FOCUS STOP0 STOP FOCUS0 FOCUS F.LPC OFF ALL SERVO ALSV ALPC OFF TGUP AUTO SLED F.SLED SLDF SLDR FCSF FCSR

State when TEST MODE is activated. State when s key is pressed once from initial state. Automatically adjusted value is held. Auto focus transfer mode Focus servo ON state.(CLV-S, tracking/sled, servo OFF) It will be referred to as LPC ON if focus carries out on. LPC OFF in focus state. State where all servo systems are turned ON. State where all servo systems are turned ON.(LPC OFF) State with tracking gain up in all servo systems are turned ON.(LPC ON) Mode in which automatic adjustment is made at once. Sled is fed outward in stop state. Sled is fed inward in stop state. Sled is fed outward in focus state. Sled is fed inward in focus state.

0 1 2 3 4 5 7 8 9 b c d E F

STOP0 STOP0 STOP STOP STOP STOP STOP STOP STOP STOP FOCUS FOCUS

FOCUS0 FOCUS0 FOCUS0 F.LPC OFF ALSV ALPC OFF TGUP ALSV STOP STOP FOCUS FOCUS

SLDR SLDR FCSR FCSR FCSR FCSR FCSR STOP

SLDF SLDF FCSF FCSF FCSF FCSF FCSF

EF

Normal Normal FOCUS AUTO

EF SCURVE EF

AUTO

STOP FOCUS FOCUS

STOP STOP FOCUS FOCUS

STOP STOP FOCUS FOCUS

SLDF SLDR FCSF FCSR

CD-JUMP TEST MODE
Procedure: 1. Connect the oscilloscope to TP (TE) and TP (VREF) on the CD board. Connecting Location: CD board (See page 13) 2. Connect 270 k and 47 k resistors in parallel to the end of TP604 on the SIDE-KEY board, and short another end of resistors to the GND, and the CD-JUMP TEST MODE will be activated. 3. Insert a CD disc. 4. Turn the power ON. Press the 7 key. 5 . If the [MODE] key is pressed, you can jump in fast feed or fast reverse direction with the > or . key by the jump amount set in table 1. 6. Turn the power OFF to release the CD-JUMP TEST MODE.
REPEAT ­ ALL mode 500 µs/div

SHUFFLE mode 1 ms/div

Table 1 LCD REP ALL SHUFFLE SHUFFLE, REP Key > TRACK + 1 TRACK + 10 TRACK + 100 . TRACK - 1 TRACK - 10 TRACK - 100
SHUFFLE ­ REPEAT mode 10 ms/div

Waveform of TP (TE) and TP (VREF) output in each mode is as follows. Connecting Location:
­ SIDE-KEY BOARD (Conductor Side) ­
TP604

11

ICF-CD555TV

TV TEST MODE
Procedure: 1. Turn the power ON while pressing simultaneously two keys of [2] and [VOLUME --]. 2. When the TV test mode is activated, the TV monitor will become as follows.
SR7570 TEST MODE MENU 1. 2. 3. 4. 5. INITIAL MENU FOR FACTORY LCD SETTING LOAD DEFAULT TUNER TEST

Ver.7570S100

3. Five items can be changed over by pressing the [TV MENU] key. 4. The selected item is displayed in red and the items not selected are displayed in cyan. ("Ver. 7570S100" is displayed in red.) 5. You can enter the selected item by pressing the [ENTER] key. 6. Also, an item can be selected directly with the [1] to [5] keys on the set or remote commander (RMT-CCD555A). 1. INITIAL MENU (TV MENU PRESET) · TV menu item is initialized. Procedure: 1. Press the [TV MENU] key to select the "INITIAL MENU" on the main screen. 2. Each item of TV menu can be initialized, if pressing the [ENTER] key. 2. FOR FACTORY (FOR ADJUSTMENT) · It is used at the time of adjustment. Procedure: 1. Press the [TV MENU] key to select the "FOR FACTORY" on the main screen. 2. A changing between setting item and "EXIT" is possible by pressing the [TV MENU] key. (The selected item is displayed in red) 3. If the [ENTER] key is pressed when the setting item has been selected, settable items can be changed over, and the value of the selected item can be adjusted by pressing the . / > keys. (For details, refer to VIDEO BUS ADJUSTMENT (See page 17)) 4. The main screen comes back if the [ENTER] key is pressed when "EXIT" has been selected.
Note: The same operation is also carried out by pressing the keys on the remote commander.

3. LCD SETTING This mode is not used in servicing. 4. LOAD DEFAULT · It carries out, only when EEPROM (IC1451) is exchanged. Procedure: 1. Press the [TV MENU] key to select the "LOAD DEFAULT" on the main screen. 2. All settings can be initialized, if pressing the [ENTER] key. (In addition to the "INITIAL MENU", set value of RGB decoder (IC1501) and tuner N value) 5. TUNER TEST This mode is not used in servicing.

12

ICF-CD555TV SECTION 5 ELECTRICAL ADJUSTMENTS
TUNER SECTION
[AM] Setting: Function: RADIO Band: AM
Put the lead-wire antenna close to the set. AMP board CN301 pin 1 level meter 6 set 30% amplitude modulation by 400 Hz signal Output level: as low as possible + ­ AMP board CN301 pin 2
L3 CT3 AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter 580 kHz 1,490 kHz FM IF ADJUSTMENT Adjust for a minimum reading on level meter T2 10.7 MHz FM VCO VOLTAGE ADJUSTMENT Adjustment Part Frequency Display Reading on Digital Voltmeter L2 Confirmation 87.5 MHz 108 MHz 1.3 ± 0.3 V 3.0 ± 0.2 V

0 dB=1 µV
T1

AM IF ADJUSTMENT Adjust for a maximum reading on level meter 450 kHz AM VCO VOLTAGE ADJUSTMENT Adjustment Part Frequency Display Reading on Digital Voltmeter L4 Confirmation 530 kHz 1,710 kHz 1.0 ± 0.1 V 5.3 ± 0.7 V

AM RF signal generator

[FM] Setting: Function: RADIO BAND button: FM
AMP board CN301 pin 1 TUNER board FM RF signal TP (ANT) generator 0.01 µF set 22.5 kHz frequency deviation by 400 Hz signal Output level: as low as possible TUNER board TP (GND) level meter 6 + ­ AMP board CN301 pin 2

FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L1 CT1 87.5 MHz 108 MHz

Adjustment and Connecting Location: TUNER board (See page 14)

digital voltmeter TUNER board TP (VT) TP (GND) 100 k

· Repeat the procedures in each adjustment several times, and the tracking adjustments should be finally done by the trimmer capacitors.

13

ICF-CD555TV

Adjustment and Connecting Location: ­ TUNER BOARD (Component Side) ­

L4 AM VCO Voltage Adjustment

T2 FM IF Adjustment

T1 AM IF Adjustment L2 FM VCO Voltage Adjustment L1 CT1 FM Tracking Adjustment

L3 CT3

AM Tracking Adjustment

­ TUNER BOARD (Conductor Side) ­

TP (VT) TP (GND)

TP (ANT)

14

ICF-CD555TV

CD SECTION
Perform all CD section check in the test mode.

FOCUS BIAS CHECK
Procedure: 1. Connect the oscilloscope to TP (RF) and TP (VREF) on the CD board. 2. Set the CD TEST MODE. (Refer to CD TEST MODE (See page 9)) 3. Insert the test disc (YEDS-18). (Part No. 3-702-101-01) (CD) 4. Press the 7 key. (LPC ON) 5. Confirm that the oscilloscope waveform is as shown in the figure below. (eye pattern) A good eye pattern means that the diamond shape () in the center of the waveform can be clearly distinguished. 6. Press the 7 key. (LPC OFF) 7. Perform confirmation in the same manner as step 5. 8. Press the s key. 9. Change the test disc (TCD-W082L). (Part No. J-2502-063-2) (CD-RW) 10. Perform confirmation in the same manner as step 4 to 7. · RF signal reference waveform (eye pattern)
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.) TIME/DIV: 500 ns CD: 1.1 ± 0.2 Vp-p (LPC ON) 1.1 ± 0.3 Vp-p (LPC OFF) CD-RW: 1.0 ± 0.2 Vp-p (LPC ON) 0.9 ± 0.3 Vp-p (LPC OFF) When observing the eye pattern, set the oscilloscope for AC range and raise vertical sensitivity.

Connecting Location:
­ CD BOARD (Conductor Side) ­
TP (RF) TP (TE) IC701

IC702

TP (VREF)

15

ICF-CD555TV

MONITOR SECTION 5-1. VOLTAGE CHECK

5-1-5. 3.9V CHECK Connection:
digital voltmeter TP1411 set
digital voltmeter TP1904

5-1-1. VDD (3.3V) CHECK Connection:

+ ­ TP1403 (GND)

set

+ ­ TP1403 (GND)

Checking Procedure: 1. Connect a digital voltmeter to the TP1411 on the TV board. 2. Check that the reading of digital voltmeter is 3.85 ± 0.2 V. 5-1-6. 7.5V CHECK Connection:
digital voltmeter TP1907 set

Checking Procedure: 1. Connect a digital voltmeter to the TP1904 on the TV board. 2. Check that the reading of digital voltmeter is 3.3 ± 0.2 V. 5-1-2. VGH (17.0V) CHECK Connection:
digital voltmeter TP1912 set + ­ TP1403 (GND)

+ ­ TP1403 (GND)

Checking Procedure: 1. Connect a digital voltmeter to the TP1907 on the TV board. 2. Check that the reading of digital voltmeter is 7.3 ± 0.2 V.

Checking Procedure: 1. Connect a digital voltmeter to the TP1912 on the TV board. 2. Check that the reading of digital voltmeter is 17.5 ± 0.5 V. 5-1-3. VSS (­13.0V) CHECK Connection:
digital voltmeter TP1911 set + ­ TP1403 (GND)

5-2.

PLL ADJUSTMENT
digital voltmeter TP1651 set + ­ TP1403 (GND)

Connection:

Adjusting Procedure: 1. Connect a digital voltmeter to the TP1651 on the TV board. 2. Adjust the RV1651 so that the reading of digital voltmeter is 2.2 ± 0.15 V.

Checking Procedure: 1. Connect a digital voltmeter to the TP1911 on the TV board. 2. Check that the reading of digital voltmeter is ­12.5 ± 0.5 V. 5-1-4. 13.5V CHECK Connection:
digital voltmeter TP1401 set + ­ TP1403 (GND)

5-3.

V COM ADJUSTMENT

Connection:
TP1955 osclloscope set

+ ­ TP1403 (GND)

Adjusting Procedure: Connect an oscilloscope to the TP1955 on the TV board. 5-3-1. VOLTAGE SET UP ADJUSTMENT Adjust the set so that the A level of the waveform on the oscilloscope is 6.6 ± 0.1 Vp-p. (Refer to the 5-7. video bus adjustment (See page 17))

Checking Procedure: 1. Connect a digital voltmeter to the TP1401 on the TV board. 2. Check that the reading of digital voltmeter is 11.5 ± 0.5 V.

A

16

ICF-CD555TV

5-3-2. POSITION SET UP ADJUSTMENT Check the B level of the waveform on the oscilloscope is 4.2 ± 0.1 Vp-p and adjust the RV1551 so that the C level of the waveform on the oscilloscope is ­2.4 ± 0.1 Vp-p.

5-7.

VIDEO BUS ADJUSTMENT

Connection: (5-7-1 to 5-7-9)
INPUT VIDEO jack (JK301) NTSC pattern generator TP1958 or TP1959 or TP1960 osclloscope set

B

0V
C

+ ­ TP1403 (GND)

5-4.

INVERTER HIGH VOLTAGE CHECK
TP1805 osclloscope (high resistance probe) set

Connection:

+ ­ TP1806

Condition: (5-7-1 to 5-7-9) Input the NTSC video signal (10 step (no burst)) (1 Vp-p 75 ) to the INPUT VIDEO jack (JK301) on the MAIN board from NTSC pattern generator. Adjusting Procedure: 1. Set the TV test mode (Refer to TV TEST MODE (See page 12). 2. Press the [TV MENU] key to select "LOAD DEFAULT", and press the [ENTER] key to write initial values to the EEPROM.
Note: It carries out, only when EEPROM (IC1451) is exchanged.

Checking Procedure: Connect an oscilloscope to the TP1805 and TP1806 on the TV board. 5-4-1. HIGH VOLTAGE CHECK Check that the reading of oscilloscope is 550 ± 150 V (rms). 5-4-2. FREQUENCY CHECK Check that the reading of oscilloscope is 70 ± 3 kHz.

3. Press the [TV MENU] key to select "FOR FACTORY", and press the [ENTER] key to enter the adjustment mode. 4. If entering the adjustment mode, press the [TV MENU] key to select item, and press the [ENTER] key to execute all adjustment items mentioned below. 5-7-1. GAMMA 1 ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope to the TP1959 on the TV board. 2. Adjust the . / > keys so that the H level of the waveform on the oscilloscope is 2.1 ± 0.1 Vp-p.

5-5.

OSD DOT CLOCK CHECK

Connection:
frequency counter (high impedance probe) TP1554 set + ­ TP1403 (GND)

Adjusting Procedure: 1. Connect an frequency counter to the TP1554 on the TV board. 2. Check that the reading of frequency counter is 6.5 ± 0.2 MHz.

H

0V

5-6.

NTSC SUB CARRIER CHECK

5-7-2. GAMMA 2 ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope to the TP1959 on the TV board. 2. Adjust the . / > keys so that the J level of the waveform on the oscilloscope is 3.0 ± 0.1 Vp-p.

Connection:
frequency counter (high impedance probe) TP1508 set + ­ TP1403 (GND)

J

Checking Procedure: 1. Connect an frequency counter to the TP1508 on the TV board. 2. Check that the reading of frequency counter is 3.579545 ± 0.0001 MHz.

0V

17

ICF-CD555TV

5-7-3. Y GAIN (LUMINANCE SIGNAL CONTRAST LEVEL) ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope to the TP1959 on the TV board. 2. Adjust the . / > keys so that the D level of the waveform on the oscilloscope is 3.25 ± 0.1 Vp-p.

5-7-7. B-SUB BRT (B-CH SUB BRIGHT) ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope of 1 step voltage to the TP1960 on the TV board. 2. Adjust the . / > keys so that the G level of the waveform on the oscilloscope is 1.0 ± 0.1 Vp-p.

D G

0V

0V

5-7-4. BLACK LIMIT (BLACK LIMITER LEVEL) ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope to the TP1959 on the TV board. 2. Adjust the . / > keys so that the E level of the waveform on the oscilloscope is 1.0 ± 0.1 Vp-p.

5-7-8. R-SUB CONT (R-CH SUB CONTRAST) ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope of 10 step voltage to the TP1958 on the TV board. 2. Adjust the . / > keys so that the D level of the waveform on the oscilloscope is 3.25 ± 0.1 Vp-p.

D D

0V

0V

5-7-5. WHITE LIMIT (WHITE LIMITER LEVEL) ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope to the TP1959 on the TV board. 2. Adjust the . / > keys so that the F level of the waveform on the oscilloscope is 3.9 ± 0.05 Vp-p.

5-7-9. B-SUB CONT (B-CH SUB CONTRAST) ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope of 10 step voltage to the TP1960 on the TV board. 2. Adjust the . / > keys so that the D level of the waveform on the oscilloscope is 3.25 ± 0.1 Vp-p.

F D

0V

5-7-6. R-SUB BRT (R-CH SUB BRIGHT) ADJUSTMENT Adjusting Procedure: 1. Connect an oscilloscope of 1 step voltage to the TP1958 on the TV board. 2. Adjust the . / > keys so that the G level of the waveform on the oscilloscope is 1.0 ± 0.1 Vp-p.

0V

G

0V

18

ICF-CD555TV

Connection: (5-7-10 to 5-7-12)
INPUT VIDEO jack (JK301) NTSC pattern generator set

5-7-10. VCO FREE RUN ADJUSTMENT Condition: Input the NTSC video signal (10 step (no burst)) (1 Vp-p 75 ) to the INPUT VIDEO jack (JK301) on the MAIN board from NTSC pattern generator. Adjusting Procedure: Adjust the . / > keys so that a screen on the monitor may become normal. 5-7-11. PLL/V POS ADJUSTMENT Condition: Input the NTSC video signal (monoscope) (1 Vp-p 75 ) to the INPUT VIDEO jack (JK301) on the MAIN board from NTSC pattern generator. Adjusting Procedure: Press the . / > keys to adjust so that the position of screen on the monitor becomes vertically symmetric. 5-7-12. H POS ADJUSTMENT Condition: Input the NTSC video signal (monoscope) (1 Vp-p 75 ) to the INPUT VIDEO jack (JK301) on the MAIN board from NTSC pattern generator. Adjusting Procedure: Press the . / > keys to adjust so that the position of screen on the monitor becomes horizontally symmetric.

19

ICF-CD555TV

Connecting and Adjustment Location:
­ TV BOARD (Component Side) ­

RV1551 V COM Adjustment

RV1651 PLL Adjustment

TP1805

TP1806

­ TV BOARD (Conductor Side) ­

TP1912 TP1959 TP1958 TP1960 TP1955 TP1911

TP1403 TP1401

TP1904 TP1508

TP1651 TP1907

TP1411

TP1554

20

ICF-CD555TV SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM ­ CD Section ­
RF AMP, FOCUS/TRACKING SERVO, DIGITAL SIGNAL PROCESSOR, CLV SERVO, DIGITAL FILTER, D/A CONVERTER IC701

RAM

· R-ch is omitted due to same as L-ch. · SIGNAL PATH : CD PLAY

PD1 DETECTOR A D PD2

FIN2 8

+

LPF

FIN1 7

MIX

EQ

AGC

RF

4

3

EFMIN

SLISE LEVEL CONTROL

ERROR CORRECTION AUDIO CD

INTERPOLATION MUTE ATTENUATION DEEMPHASIS

8FS DIGITAL FILTER

1 BIT DAC

LPF

LCHO 42 RCHO 45

CD LCH R-CH

A

(Page 24)

I-V AMP

B

C

PH A/D

AUDIO OUT

DOUT

39

BH F F TIN2 10 TIN1 9 TBAL LPF TRACK JUMP SW

CLV, CAV CONTROL RUPTURE DETECT PLL VCEC SERVO PROCESSOR

E

FRAME SYNC DETECT, PROTECT, INSERT, EFM DECODE

FSEQ

31

39 FSEQ

E

XOUT RAM CLOCK GENERATOR XIN

48 49 X701 16.9344MHz

OPTICAL PICK-UP BLOCK (KSM-900AAA) LASER DIODE AUTOMATIC POWER CONTROL Q701 AUDIO ADJUST S/H APC D/A SW GENERAL PURPOSE PORTS

DRF

DRF

67

57 DRF

LD

LDD 80

COMMAND INTERFACE

CONT4

CONT1

TDO FDO SLDO SPDO

LDS

RES

PD

LD 79 PD

WRQ

13 15

20 21 23 22

25

72

66

65 61 62 63 64

S701 (LIMIT) ON : When the optical pick-up is inner position

CE CL DI DO

FE TE

SYSTEM CONTROLLER IC401 (1/2)

53 CD DATA IN 54 CD DATA 55 CD CLK 56 CD CE

FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE IC702 2-AXIS DEVICE T+ T­ TRACKING COIL DRIVE TIN 9

T+

(TRACKING)

12 11

(FOCUS)

50 WRQ 58 XRST

T­ F+ F­ 17 18 F+ F­ FOCUS COIL DRIVE FIN 19 S702 CD TRAY CLOSE DETECT S703 CD TRAY OPEN DETECT SL+ SL­ SLED MOTOR DRIVE CD TRAY OPEN/CLOSE MOTOR DRIVE IC305 M301 CD TRAY OPEN/CLOSE 8 A OUT 7 B OUT A IN 3 B IN 2

42 CD CLOSE DET

61 CD OPEN DET

M701 (SLED)

M

27 26

SLIN

25

M702 (SPINDLE)

M

2 1

SP+ SP­ SPINDLE MOTOR DRIVE

SPIN

3

M

51 CD CLOSE 60 CD OPEN

MUTE

7

21

21

ICF-CD555TV

6-2.

BLOCK DIAGRAM ­ TUNER Section ­
T2 FM IFT T2 FM IF 10
QUAD

FM/AM RF AMP, MIX, OSC, FM/AM IF AMP, DET, MPX IC1 FM RF IN FM IF IN

(Page 24)

B

ANT CT1, L1 FM TRACKING L1 FM RF CT1 D1

2

FM RF AMP

FM MIX

MIX OUT

4

CF2

7

FM IF AMP

FM DET

DET OUT AF 16 BUFFER

15

MPX IN

L-OUT AF AMP MPX MUTE R-OUT

12 11 R-CH

TU LCH

C

(Page 24)

24

FM RF OUT

FM OSC

T1 AM IFT CF4 6 AM IF IN AM IF AMP AM DET LEVEL DET
LPF2/MO-ST

STEREO/ MONO, FM/AM

L3 AM FERRITE-ROD ANTENNA 22 AM RF IN AM RF AMP AM MIX BUFFER CT3 D3 (1/2) AM OSC
AM OSC FM OSC

T1 AM IF IF BUFFER
IF OUT

19

BUFFER

17

18

LPF1/BAND

ST IND

OSC OUT

ST IND

13 14

CT3, L3 AM TRACKING L4 AM VCO VOLTAGE

20

21 L2 FM VCO VOLTAGE L2 FM OSC

· R-ch is omitted due to same as L-ch. · SIGNAL PATH : FM : AM

L4 AM OSC

D3 (2/2) D2

VT B+

LOW-PASS FILTER

FM/AM PLL IC2

6
FM/AM

18
LP-OUT

17
LP-IN

16
PD

12
FMIN

11
AMIN

10
IF IN

8
BAND ST-IND

9

7
BAND

13
MO/ST

20 X1 75kHz 19

XOUT REFERENCE DIVIDER

LOW-PASS FILTER PHASE DETECTOR/ CHARGE PUMP 12 BIT PROGRAMMABLE DIVIDER

UNIVERSAL COUNTER CCB INTERFACE

DI CL

2 3 1 4

PLL DATA PLL CLK PLL CE COUNT

PLL DATA, PLL CLK, PLL CE, COUNT

D

(Page 24)

XIN

1/2 SWALLOW COUNTER

CE DO

UNLOCK DETECT

SHIFT REGISTER & LATCH

22

22

ICF-CD555TV

6-3.

BLOCK DIAGRAM ­ MONITOR Section ­
L JK301 INPUT AUDIO R VIDEO TU501 TV TUNER UNIT R-CH TV/VIDEO SELECT SWITCH IC304 12 14 13 R-CH 5 4 DET OUT 16 3 9 11 D104 VIDEO AMP Q350 MUTING Q104 X1501 3.579545MHz R-CH 63 VXO-NTSC 52 YIN 57 CIN CTRAPOUT 53 VCOMOUT 28 LIQUID CRYSTAL DISPLAY MODULE LCD1 V COM AMP IC1552 V COM BIAS Q1551 ­ 1553 VCOM VCOM RV1551 V COM 54 CTRAPIN R-OUT 26 G-OUT 21 B-OUT 19 RGB DECODER IC1501 9V (MPX) 5V (TU) 5V (F) 5V (D/D) 9 2 14 26 +9V 77
TV/VIDEO

TV LCH

F
(Page 24)

VHF/UHF

TV ANT

L OUT 25 R OUT 24

TRAP R G B OSD DRIVER IC1551 16 VR 17 VG 18 VB 15 BLK OSC OUT 7 OSC IN 8 20 HSYNCIN 19 VSYNCIN
DATA SCLK CSN

R G B VGH17V VDD3V VEE5V

RED GREEN BLUE VGON (17V) VDD (3.3V) VEE (5.0V) VB (2.5V)

34
T-A MUTE

R-IN2 14 G-IN2 15 B-IN2 16 YS 17 35 VDIN
BLAK POL

TV+5V

SYNC SEPARATOR Q1504, 1505

46 CSYNCIN CSYNCOUT 34

BUFFER Q1501

18 36 SDA 4 SCL 3 AFT OUT 15 MUTE 22 RF AGC 13 AGC Q502 AUDIO MODE SELECT SWITCH Q503 AUDIO MODE SELECT SWITCH Q504 32 T-SDATA 33 T-SCL 46 T-AFT 31 T-MUTE
SDATA SCLK

OSC

VSS­13V LCD CONTROLLER IC1601 PHASE COMPARATOR IC1651 33 PD STV1 STV2 STH1 STH2 CPH1 CPH2 CPH3 CPV HD VD BLAK POL 2 5 8 14 HSYNCIN VDBIN BLACK POL OEV1 OEV2 OEV3 OEH 20 26 23 24 29 27 25 16 19 18 17 21

VSS (­13.0V)

HDOUT 32 VDOUT 31
HSYNCLOCK

30 T-AGC

3 1 2 RV1651 PLL

36 VCO1 37 VCO0

STV1 STV2 STH1 STH2 CLK1 CLK2 CLK3 CPV OEV1 OEV2 OEV3 CPV

48 47 MODE 20 78 T-MODE

39
BLAK POL HD VD

SYNC DET Q1502, 1503 79 T-FMONO

F MONO 21

SIGNAL PATH : TV : VIDEO : AUX IN (AUDIO) : AUX IN (VIDEO)
SDATA, SCK, LATCH, RESET

SDA SCL

R-CH : R-ch is omitted due to same as L-ch.
S701 DISPLAY RELEASE 37 TFT OPEN

12 31 4 3 X1401 4.19MHz

5 6

66 67
SDA SCL

65
HSYNCLOCK

52
VSYNC

49 50
EEPROM-SDA EEPROM-SCL

75
X2

74
X1

54 55 53
OSD-DATA OSD-CLK OSD-CS

61 62 63 64
ZOOM JUST SIDE1 SIDE2

ZOOM JUST SIDE1 SIDE2

EEPROM IC1451

E

SDATA SCK LATCH RESET

(Page 24)

56 58 57 76

TV DATA-SI TV DATA-CLK TV DATA-SO RESET

TV SYSTEM CONTROLLER IC1401

MONITOR ON 80

MONITOR ON

G H
(Page 24)

TFT-ON 60

TFT-ON

(Page 24)

23

23

ICF-CD555TV

6-4.
(Page 21) (Page 22) (Page 23)

BLOCK DIAGRAM ­ MAIN Section ­
A C F
CD LCH TU LCH TV LCH CD LIN 5 R LIN 7 TV LIN 9 INPUT SELECT SWITCH SEL L V LIN VOLUME CONTROL SURROUND CONTROL LOGIC TONE CONTROL L OUT LINE AMP Q101 MUTING Q103 L IN NF L POWER AMP POWER AMP IC301 4 1 17 12 13 L OUT 3 SP101 (L-CH) R-CH SP201 (R-CH)

INPUT SELECT SWITCH, ELECTRICAL VOLUME, SURROUND/TONE CONTROL IC302

BOUTL

14 13

21

20

R-CH

R-CH : R-ch is omitted due to same as L-ch. SIGNAL PATH : FM : TV : CD PLAY
R-CH PLL DATA, PLL CLK, PLL CE, COUNT 68 67 PLL DATA PLL CLK PLL CE COUNT SDATA SCK LATCH RESET 65 66 64 63 33 34 35 36 RADIO DATA RADIO CLK RADIO CE COUNT TV DATA SO TV DATA SCK TV DATA SI RESET SEG0 ­ SEG21 10 ­ 31 R-CH AGC Q202 D203

MUTING CONTROL SWITCH Q304

STANDBY SWITCH Q305

+

+

D102

(Page 22)

D

VOL DAT VOL CLK

A MUTE 77 BUZZER 52 R-CH

SYSTEM CONTROLLER IC401 (2/2)

POWER ON 59

(Page 23)

E

SDATA, SCK, LATCH, RESET

TIMER LED 80 COM0 ­ COM3 6­9

LED DRIVE Q651

D653 TIMER

+5V RESET SIGNAL GENERATOR IC402 µ-COM +3.3V D402 43 KEY3 +3.3V D1401, 1402 S612 ­ 617 44 KEY2 TV POWER ON 32 CD ON SWITCH Q301 +3.3V REGULATOR Q954 +5V REGULATOR Q951, 952, 955 ­13V REGULATOR Q1902 B­ SWITCH Q1909, 1910 TV µ-COM +3.3V TV ON SWITCH Q403, 404 +3.9V REGULATOR IC903 +12V POWER AMP B+

LIQUID CRYSTAL DISPLAY LCD651

REMOTE CONTROL RECEIVER IC651 S618 ­ 620

SIRCS BUFFER Q401

48 RC

RESET 76

D651, 652 (LCD BACK LIGHT) D401

S606 ­ 611 45 KEY1 CD ON 79

CD +3.3V

STBY
8

BNFL

SI SC

VSS­13V

POWER ON/OFF CONTROL SWITCH Q1913

MONITOR ON

G

(Page 23)

S601 ­ 605 46 KEY0 RADIO ON 78

+6V RADIO/VT B+

RADIO ON SWITCH Q302

VGH17V

+17V REGULATOR Q1902

B+ SWITCH Q1911, 1912

T901 POWER TRANSFORMER RECT D912 ­ 918

S651

+5.4V MOTOR DRIVER B+ CD +6V

D303 +6V REGULATOR Q956 ­ 958 AC IN DETECT Q901 +3.3V REGULATOR IC1903 +5V REGULATOR IC1901 D1953, 1954 B+ SWITCH Q1905, 1906 REGULATOR Q1903

TV +5V

TV ON SWITCH Q501, 505

+5V REGULATOR IC902

RECT D903 ­ 906 RECT D901, 902 RECT D908 ­ 911 ANT

(AC IN)

ROTARY ENCODER

40 ENCODER+ 41 ENCODER­

AC IN 49

XT2

XT1

X2

75

74

X1

VDD3.3V

71

70 VEE5V TV ON SWITCH Q959, 960 +9V REGULATOR IC901

B

(Page 22)

X401 4.19MHz

X402 32.768kHz

+7.5V +9V T1801 INBERTER TRANSFORMER BACK LIGHT UNIT

REGULATOR Q1803, 1804

B+ SWITCH Q1801, 1802 TFT-ON

H

(Page 23)

OSC Q1805, 1806

24

24

ICF-CD555TV

6-5.

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. f · : internal component. · 2 : nonflammable resistor. · C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. · · · · A : B+ Line. B : B­ Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : AM { } : TV : VIDEO (COLOR BAR SIGNAL INPUT) [ ] : CD PLAY Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : FM f : AM N : TV L : VIDEO E : AUX IN (AUDIO) a : AUX IN (VIDEO) J : CD PLAY

· Circuit Boards Location

Note on Printed Wiring Boards: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. · W : indicates side identified with part number. z · : Through hole. f · : internal component. · : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side)

AMP board MOTOR board CD-CLOSE board CLOSE-TV board TRANS board MAIN board

Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.

LCD board

· · · ·

CD board FRONT-KEY board TUNER board RELAY board SIDE-KEY board CD-OPEN board

TV board

25

25

ICF-CD555TV

6-6.

PRINTED WIRING BOARDS ­ CD Section ­

· See page 25 for Circuit Boards Location.

:Uses unleaded solder.

CD BOARD RELAY BOARD
JC707 JW725 JW723 JW724

Q701

R707

JW728

JW731

C701 JC704 JW726 JW727

C702 JC703 R744

JW730

R710 R709 JW732 R713 C705 R711

R729

R728 R730 R727 R726

JW729

JW734

R732 R731 R733 C728 C729 CNP702 C724
2 1

1 2

CNP704

19 20
R741

JW722 CNP701
2 1

R740 R742

R702 TP (RF) C704 R703 R706 R715 R714 C743 C734 R708

C730 JW733

R725 C723 R724

IC702
C740 JW711 C741 JW712

R704

C731

R746
JW721

C703 1

C746
80

C725 R721 R720

C726

C736
TP (TE)

C744 R722

JW703

2 CNP705

JW717

JW701 1

IC701
JC708 R712 JC705
JW713

C745

R717 R718 R716

JW702

R719

A
MAIN BOARD CN408 13 14

20

61

C721 C720

(Page 30)

C742 C708
JW710 JW709

JW718

JC706

21

60

JC711
JW716

C722
JW707

16

15
20
JW715

TP (VREF)

L706 C717 JC710
40 41 C711 R747 R739

JW720

JW719

19

C707
C706

X701
R751

C716

CNP706 6 1

JW704

11 (11)
M701 (SLED) M702 (SPINDLE) S701 (LIMIT) ON: WHEN THE OPTICAL PICK-UP IS INNER POSITION

JW705

1-861-830-

OPTICAL PICK-UP BLOCK (KSM-900AAA)

C709 JW708 R723

C733

FB701 JW706 C735 C755 C754

C751

JC709

11
R750 R748

C727

1-687-668-

(11)

M

M

CD-OPEN BOARD
S703 CD TRAY OPEN DETECT

MOTOR BOARD

K
MAIN BOARD CN401

2 1

11

M
1-861-833-

(11)

(Page 30)

CD-CLOSE BOARD
S702 CD TRAY CLOSE DETECT 1 2

M301 CD TRAY OPEN/CLOSE

11
1-861-835-

(11)

L
MAIN BOARD CN411

2 1

11
1-861-834-

(11)

M

MAIN BOARD CN412

(Page 30)

(Page 30)

26

26

ICF-CD555TV

6-7.

SCHEMATIC DIAGRAM ­ CD Section ­ · See page 42 for Waveforms.

· See page 43 for IC Block Diagrams.

CNP706 6P CNP704 20P SPGND SP+ LIM LIM SP+ GND SPSLM702 SL+ LD PD2 F PD1 VC E GND VCC VR PD T+ F+ FTCNP705 16P GND PD2 F PD1 E VC VCC LD NC LD GND PD VR PD F+ A F D E (SPINDLE) B ON:WHEN THE OPTICAL PICK-UP IS INNER POSITION S701 (LIMIT) SL+ SLM701 (SLED)

Z2

Z4

Z3

Z5

TRACKING

C

Z8

Z7

Z6

T+

FOCUS

TF-

C726 1000p C725 1000p C724 22p

R722 100

R720 100

R719 100

R721 1k

R718 1k

R717 1k

PD R728 10k C744 0.1 C745 0.1 C746 100 10V R727 2.2k C730 0.1 R730 1k R729 220 R733 220 R726 470 C729 1

LIM

R731 2.2k

C728 0.047

R724 47k

R732 220 R725 470

R716 1k

C723 0.01 C722 22p C721 22p C720 22p

C731 0.047

PDO1

CONT3

FR

PDO2

CONT1

CONT2

VVSS

VVDD

PCKIST

VSS

VDD5

LDD

LDS

DRF

DO

WRQ

RES

CNP701 20P SPSPSP+ SP+ LIM LIM PD2 GND SLSLSL+ SL+ LD LD PD2 PD2 F F PD1 PD1 VC E E GND VCC R712 100 VR PD PD T+ T+ F+ F+ JC711 FTT0 FLD Q701 KTN2907AS-RTK AUTOMATIC POWER CONTROL JC706 0 R707 10 F R715 220k R714 470k E R742 470k C733 100 10V PD1 R704 10k R702 10k

C742 0.1

C703 0.1 SLCO

CL

CE
DATA DATACK LRSY ASDFIN Z1 ASDACK Z2 ASLRCK Z3 16MOUT EFLG C2F X701 16.9344MHz R747 R751 22k 2.2k Z4 WRQ Z5 CL Z6 CE Z7 DI R739 1k Z8 RES Z9 RCH Z10 LCH FB701 JC710 0 0 R748 100 Z10 LCHO LVDD R750 100 L706 0 C717 0.01 GND Z9 3.3V CNP702 14P PGND 6V FSEQ DRF DO XVSS XIN XOUT XVDD RVDD RCHO RVSS

SLCIST C743 0.1 C704 22p R711 R713 220 100 C705 (RF) 4700p EFMIN RF RFVDD RFVSS R740 220k R703 4.7k FIN1 R706 4.7k FIN2 TIN1 RF AMP,FOCUS/TRACKING SERVO, TIN2 (VREF) VREF REFI C751 0.1 C706 1 50V C734 4700p (FE) FE TEC C707 1 C708 100p C701 1000p TDO C736 4700p JC708 0 (TE) TE RFMON JITTC DIGITAL SIGNAL PROCESSOR, CLV SERVO,DIGITAL FILTER, D/A CONVERTER IC701 LC78646E

DI

C702 47 10V

R709 22k

R710 4.7k

R708 10k

FSX/16MIN

(Page 33)

SBCK/CONT6

ADAVDD ADAVSS

LVSS

SBCK/FG

GPDAC

MONI3

CONT4

CONT5

MINI2

SPDO

SLDO

FSEQ

V/P

FDO

VDD

DOUT

TDO

MONI1

MONI4

MONI5

(3.3V)VSS

DEFECT

FDO

TEST

SLDO

SL+

SL-

F-

F+

FDO SPDO R723 100 C727 1000p C709 0.1 Z1 C716 0.01 C711 0.01

JC709 0

JC704 0

VREF

SLIN

GND

VCC

F+

F-

REG-B (SLIN)

VCC

SL+

NC

OPIN

SL-

(FIN)

FIN

SLDO CONT4

R746 4.7k

C735 1000 6.3V

C755 0.01

C754 0.01

OPOUT

MUTE

REGO

(TIN)

SPIN

GND

SP+

GND

RST

SP-

TIN

IC702 BA5826FP

T-

T+

C741 0.1

C740 470 10V

JC705 0

FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE

JC707

0

R744 100k

R741 10k JC703 0

SPDO

CONT4

TDO TT+

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

SP+

SP-

27

27

ICF-CD555TV

6-8.
· Semiconductor Location
Ref. No. D1 D2 D3 D10 D11 IC1 IC2 Location C-9 D-8 D-8 C-11 C-11 E-9 F-4

PRINTED WIRING BOARD ­ TUNER Section ­

· See page 25 for Circuit Boards Location.

:Uses unleaded solder.

1

2

3

4

5

6

7

8

9

10

11

12

13

A

B
JC11 C32 D10 D11

JW5

JW13

C65

C
C26

TP (VT)

R32

TP (GND)

R63 JW3
C29

D1

JC12 L3 AM FERRITE-ROD ANTENNA CT3

TP (ANT)

CT1

C4 C34 C35 L1

B
C8 R3
C10 TRANS BOARD
(Page 40)

D3

C27

JC1

R56

D

R65

JC2

C47

R41 C49

(SHIELD CASE)

R50

C43

C33

C51 C52

JW6

C30

C31

C63

CNP1

R59 R58

IC2
R94 R13 C60 C68 C66

C54

JC4 R11

JW9

R53

C39

C56
L4

C18

C59

JW11

R60

R51

R24 C24
C23

C11

E

JC3

R61

C62

C61

(Page 30)

R31

MAIN BOARD

X1

R52

L2

C13

IC1
CF4
CF2

C53

C80 C9 C14 C15

C55

JC33

C22

F

C95

R54

JW10

C21

R92

C57 R91 R4

JW7

C20

C7 T2
C12

JC34

JC5

JC6

C37

C41 C42

L21

R30

C

C1

D2

JW8

T1

JC13
R1

R40

R2

JW12

R10

JW4

L11

G

11 1-688-455(11)

28

28

ICF-CD555TV

6-9.

SCHEMATIC DIAGRAM ­ TUNER Section ­

· See page 42 for Waveform.

· See page 43 for IC Block Diagrams.

L3 AM FERRITE-ROD ANTENNA C41 220p L4 AM OSC R91 220 CT3 JC12 0 JC11 0 R41 10k C49 0.01 R40 220k C43 22p C47 10p C39 0.1 C51 22p C52 10p C59 100p R51 10k C53 0.22 R50 1k R52 0 R65 10k C65 4.7 50V C54 220 10V R63 10k TP (VT)

D3 KV1520NT

C42 100p

C56 0.001

C37 0.01

R54 470 C95 0.001

R32 100k

R30 15k

C80 0.01

X1 75KHz C55 100p

D1 KV1471E

L11

CT1

C35 0.01

C33 0.01

D2 KV1471E

C31 22p

L2 L1 C34 0.01 FM RF R31 3.3k FM OSC C30 0.01 JC3 0 C24 220p C21 1 50V C22 0.1 R11 3.3k R53 15k C57 0.001

XOUT

LP-OUT

XIN

LP-IN

PD

VDD

VSS

ST-IND MO/ST

FM IN

R24 220

C23 1 50V

C20 0.1

FM/AM PLL

MUTE

FM /AM

BAND

BAND

C13 0.01

FM

VCC1

AM

LPF2

/MO-ST

FM OSC

AM OSC

ST-IND

LPF1

RF-OUT

RF-IN LOW CUT

OSC-OUT

IF-OUT

DET-OUT

MPX-IN

/BAND

FM/AM RF AMP, MIX,OSC,IF AMP, DET,MPX L-OUT C61 100p C60 0.001

MIX-

OUT

AM

R-OUT

QUAD

GND1

GND2

RF-IN

VCC2

IF-IN

IF-IN

AGC

AM

IC1 TA2149BN

C62 100p R4 10k C63 100p C68 100p R94 1k R92 220 C66 100p JC5 0

FM

FM

DO

CE

CL

DI

IC2 LC72137M-TLM

IF IN

AM IN

JC13 0

C12 4.7 50V

R56 330 C9 10p C7 5p

C11 0.1

L21 10µH R13 1k

TP (ANT)

T1 AM IFT C1 47p

T2 FM IFT JC4 0 R61 2.2k R60 2.2k R59 2.2k R58 2.2k CNP1 11P CF4 MUTE COUNT PLL CLK

(Page 41)

R2 470 R1 330

JC6 0

R3 10k

JC33 0 CF2 JC2 0 JC34 0 R10 47 JC1 0

PLL DATA PLL CE LCH R +B

C32 0.001

C4 0.001

C10 1 50V

C8 0.001

D10 1SS355

D11 1SS355

C18 220 10V

C14 0.022

C15 0.022

C29 100 10V

C27 100p

C26 100p

TP (GND)

RCH GND VT S-GND

(Page 33)

29

29

ICF-CD555TV

6-10. PRINTED WIRING BOARDS ­ MAIN Section ­
· Semiconductor Location
Ref. No. D103 D104 D203 D204 D303 D306 D307 D401 D402 D912 D913 D914 D915 D916 D917 D918 D951 D952 D953 D955 D956 D957 D958 D959 D960 IC302 IC304 IC305 IC401 IC402 IC901 IC902 IC903 Q101 Q102 Q104 Q201 Q202 Q204 Q301 Q302 Q304 Q305 Q350 Q401 Q403 Q404 Q501 Q502 Q503 Q504 Q505 Q951 Q952 Q954 Q955 Q956 Q957 Q958 Q959 Q960 Location H-7 I-5 H-7 I-6 H-9 I-8 H-7 F-2 F-2 D-11 D-9 C-10 D-11 D-11 D-10 C-10 F-9 F-8 F-9 C-4 B-6 C-6 G-9 G-8 G-9 I-6 D-13 I-9 G-4 G-2 E-11 B-11 C-4 I-8 H-7 I-5 I-8 G-7 J-6 D-5 D-4 I-9 I-8 C-13 I-2 B-3 B-3 F-12 G-11 E-12 E-12 F-11 E-9 F-9 C-6 F-9 G-8 G-9 G-9 F-11 F-11

· See page 25 for Circuit Boards Location.

:Uses unleaded solder.

1

2

3

4

5

6

7

8

9

10

11

12

13

14
CLOSE-TV BOARD

15

A
(Page 26) (Page 39) (Page 39) (Page 39) (Page 39)
1 S701 2 C516
JW440 JW447

A
MAIN BOARD

CD BOARD CNP702

J
D956
C960 R959

TV BOARD CN1404 (CHASSIS)

F

TV BOARD CN1401

H
IC902

TV BOARD CN1403

G

TV BOARD CN1402

DISPLAY RELEASE

11 (11)

Q404 Q403
BC E BC E JW423 JW424 JW439

JW450

BC E

K
CD-OPEN BOARD

C519

2 1 CN401

3 2 1 C957 JW442 JW441 A K CN408 1 2
JW437 C961

C978

1 C958

+

C962

7 CN501

C977
JW418 JW419

R358

IC903
+

C956

JW449

C979

3

1

CN409

+
C984

K

A

JW430

JW431

JW432

JW433

JW434

JW435

JW436

C309 C310

JW428

JW429

R150 R328

JW452

1

JW446
JW438

R301

JW415

ECB

(Page 31)

CN406

JW425

JW443

Q302
R495 R494

Q301
JW362 JW361 JW386

JW414
C973

R360

3 2

JW314

JW316

JW368

JW408

JW317

JW318

JW319

JW320

ECB ECB

JW363

JW364

JW365

JW366

JW367

JW369

JW406

JW356

JW357

JW358

JW359

JW360

JW328
JW321

C443

JW327 JW326
R486 JW322

ECB

C953 JW385
JW392

C974 R952

JW407

D951

ECB

R488

R953

C448

D401
C429 C428 C427 C426 C425 C424 C423

JW325 JW324 JW323 JW349 R492
R489 C418 C419 C417 C415 C414 C420 C449

Q952
A K
BC E

R960 A
R961

R501

BC E

R155

R480

R479

R478

R477

R476

R475

R474

C446

JW355 JW354 JW353 JW352 C966

D952 Q956
R964 C965 JW374

C434 R499
R487

Q955
JW388
JW387

R441

R471

R470

R468

R466

R467

BCE

+

2 C447

R473

C432 C433

61

60

JW311 JW310 JW309
JW305 JW306

JW332

R448 R450 R446 R445

C441

IC401
1
JW331

R449

C340
R337

JW308 JW307

40 C405
R442 R447 C407 C408

R403 C403 C401 R405 C404 C402 R408 R406

+

+

JW381

R401
R410 R412 R414 R416 R418 R420 R422 R426 R428 R430 R432 R434

C206 R210 C207 R209

C106 R110 C107 R109 C129 R118 C229 R218

R112

R491

ECB

L501

L502

R411

R413

R415

R417

R419

R421

R423 R424 R425

R427

R429

R431

R433

R435

R503

C450

BC E

JW340 R438 C466 R437 C465 R436 JW339 JW338 JW337
C123

Q401

JW303

C223

C356

R231 R131

R212

R228

BC E

R227 R205 K
BC E

R151

BC E

JC402

JC403

JW334 JW333

D204 R204 C202
R251 R232

C321

C323 JW370

JW371

R206

JW302
JW335 JW336

JW301

Q204

R315 R316

C324

C231

J

C322

P

LCD BOARD CN405

Q

LCD BOARD CN404

(Page 31)

(Page 31)

30

+

R106

C203

JW372

Q104

A

C103 12

13

C131

+

IC302

C357

C359

R132

JC405 R322

16

ECB

2

2

16

Q201

K

A

ECB

I

CN410 15 1

CN403 17

+

R490 1

D104

R102 R203 C105 C101 C205 R202 C201 1 R127 R105 R104 C102

C130 R128 K C210 R211 R336 A D306

9

CN411 2 1 JW379 JW378

C515 C514 26

C510 C509

R508

C504 6

R207 R107 24

C512 C513 C511 CN412 1 2

C508 JW393

13

R502

Q101

L503

JW341

Q305 Q304

C230

1 CN303 JW377 JW376 1

D

AMP BOARD

(Page 40)

30

+

R440 C468 R439

JW342

+

JW346 R103

C326 C325 C108 C109 C208 C209

JW382

JW304

C111 JW373

+

R510

R509

R507

+

20

21

JW343

C320

D103 A

JW380

H

L401

C442

K

C406

JW344

Q102

R141 R115 K R114

A

JW345
BC E

R113

+

+

R497 R496

C222

D203 A

R213

BC E

R483 R484 R485

80

41

Q202

JW375

R338

R963

R241 R215 K R214

D959

+

Q958

C211

JW383

BC E

R481 C437 R482

C122

C964

K/A R967 C968

BC E

Q957

D958

G

X401

JC401

JW350

D307 D303
13

C110 R111

+

L402

R498

+

3

C431

R465 C410 C451 R464 C409 R459 R463 C412 R461 C411 C413 R451 R457 R443 R460 R453 R455 R444

R469

1

X402

JW347

C416

R462

JW351

D960
R965 R966 A K A K R968

R504

C505

C520 JW395

JW396

JW398 JW397 VIDEO

CN302 5

TU501 TV TUNER UNIT VHF/UHF

C355

1

R517 R505 C507 C506

R515

R516

C503 C502 C501 1

R356 R355 R350

IC402

JW348

C521 JW399

C430

Q502

L
CD-CLOSE BOARD

E
AMP BOARD

M
MOTOR BOARD

IC305

(Page 26)

(Page 40) (Page 26)

+

C444

R472

C445

R951

C963

D402

JW384

C951

R962 JW389

JW394

F

BC E K/A

+

C967

+

C952

R970

Q960 Q505

JW405

Q501

R511 R514 JW403 JW402 JW401 JW400

R352

K

D953

JW391 JW390

R969

JW404 R154

+

Q959

+

+

JW312

JW315

JW329

C954

Q951

C975

+

C350

Q504 Q503

JW410 JW409

JW411 R362

+

E

JW313

JW330

JW412 1 C338

R250

JW413

C250 R361

R254

+

IC901

+

FRONT-KEY BOARD

5

14 13

+

JW426

C517

C305

JW416

PS904 JW448

JW451

JW444

PS903

C972

9 CN503

C151 C251

R512

JW427

R302

C990

R359

R513 JW421

16 C337

1 R258

JC404 R255

C351 R327 L JK301 INPUT

+

N

+

D

JW445

C989

C980

+

+

11

+

C308

C970

D916 D917

+

+

R158 9

JW417 8

+

(Page 28)

10

+

D913

D912

1

C150

C152

C252

JW422

C983

D915

R157

TUNER BOARD CNP1

D918

CN502

JW420

C

D955

+

CN304

C991

+

C

+

(Page 26)

Q954 D957

1

C971 C981

+

D914

R353 C352

C982

1 2

IC304 R257

+

Q350

+
C518 R AUDIO

+

+

C959

CN504 1 R958

+

B

2 1 C354

1-861-824-

+

+ +

+

11
1-861-823-

(11)

ICF-CD555TV

6-11. PRINTED WIRING BOARDS ­ PANEL Section ­ · See page 25 for Circuit Boards Location.

:Uses unleaded solder.

C671

C672

C673

C674

C675

C676

C677

C678

R635

R636

R639

R640

R637

16 C668 C667 C666 C665 C664 C663 C662
C660 C661

CN405 JW651 JW652 JW654

2 1

C653

CN404 1 2

15

D651
(LCD BACK LIGHT) R651
C681 C652

TP604 S618 CLOCK

S620 ENTER

S619 TV MENU

R638

(Page 30)

C679

1

3

IC651 R654

JW653 C680

Q

MAIN BOARD CN403

LCD BOARD

P

MAIN BOARD CN410

(Page 30)
R655

SIDE-KEY BOARD
1 2

D652
C669 C670

11
1-861-828-

(LCD BACK LIGHT)
JW655

ECB
C651

Q651
1 LCD651 (LIQUID CRYSTAL DISPLAY) 26

R653

(11)

C657 C656 C655 C654 17

C658

C659

D653
TIMER

S651 ROTARY ENCODER TIMER PUSH START/STOP ­ +

11 (11)

16

1-861-832-

N
FRONT-KEY BOARD
5 S602 MODE
R602 R604 R601 R603

MAIN BOARD CN406

(Page 30)
1 2 1

R610

R609

R626

R622

R606

R605

R608

R607

R614

R613

R616

R612

R611

R615

R618

R617

R620

R619

R624

R623

R621

R625

R634

R632

R630

R628

R627

R629

R631

R633

S614 S603 1 S604 2 S606 3 FM/AM PRESET TUNING STATION SELECT/ PRESET S607 4 S608 5 S609 ­ VOLUME S605 + S610 TUNE/CH ­ TIME SET/ TV MENU SET + S612 S611 CD OPEN /CLOSE S613 TV/VIDEO TV ON

S615 CD

S616 RADIO ON BAND

S617 OFF

S601 SOUND

11
1-861-827-

(11)

31

31

ICF-CD555TV
6-12. SCHEMATIC DIAGRAM ­ MAIN Section (1/3) ­ · See page 42 for Waveforms.
· See page 48 for IC Pin Function Description.

LCD651 LIQUID CRYSTAL DISPLAY R651 47 D651 TLFGE53T D651,652 (LCD BACK LIGHT) D652 TLFGE53T REMOTE CONTROL RECEIVER IC651 SPS-442-E Q651 DTA124EUA-T106 LED DRIVE O G R654 10k I

R655 100

SEG21

SEG20

SEG19

SEG18

SEG17

SEG16

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

COM3

COM2

COM1

COM0

0.01

0.01

S651(1/2) ROTARY ENCODER +

C654 100p

C655 100p

C656 100p

C657 100p

C658 100p

C659 100p

C660 100p

C661 100p

C662 100p

C663 100p

C664 100p

C665 100p

C666 100p

C667 100p

C668 100p

C669 100p

C670 100p

C671 100p

C672 100p

C673 100p

C674 100p

C675 100p

C676 100p

C677 100p

C678 100p

C679 100p

D653 SLR-342DU TIMER R653 1k C681 0.1

C651

C652

C653 1000p

C680 0.1

S651(2/2) TIMER PUSH START/STOP

CN404 17P

CN405 16P

S603 1

S604 2

S606 3

S607 4

S608 5

SEG18

SEG19

SEG21

SEG20

SEG17

SEG16

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG2

SEG3

FM/AM PRESET TUNING STATION SELECT / PRESET

R601 22k

R602 100k S601 SOUND

R611 22k

R623 22k R612 47k S606 R624 47k R494 22k R490 10k 5 S612 CN406 5P R495 47k R443 100 R444 100 R445 100 S607 KEY0 B2

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG1

SEG0

COM3

COM2

COM1

COM0

(1/3)

CN403 17P

CN410 16P

C434 100 10V B1

R603 47k

R604 47k

R613 22k

R614 100k

SEG10

SEG2

SEG1

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG0

KEY1 KEY2 KEY3

COM3

COM2

COM1

COM0

S602 MODE

C404 2.2

C403 2.2

C402 2.2

R405 100k

C401 0.01

C442 0.01

R408 100k

R625 22k

R626 100k

JC402

0

R446 100

(Page 34)
R406 100k R403 10k R401 22k Q403,404 TV ON SWITCH

R424 10k

R423 10k

R422 10k

R421 10k

R420 10k

R419 10k

R418 10k

R417 10k

R416 10k

R415 10k

R414 10k

R413 10k

R412 10k

R411 10k

R606 470k

1

R605 47k

R615 47k

S603

R616 47k

TV/VIDEO

S608

R627 47k

R628 47k

R410 10k

S613

MESSAGE S614 TV ON SEG10 SEG11 R425 10k SEG11 R426 10k SEG12 SEG13 CD R491 10k RC SEG14 SEG15 SEG16 SEG17 S616 SEG18 RADIO ON BAND SEG19 SEG20 SEG21 R433 10k SEG19 R434 10k SEG20 R435 10k SEG21 TV POWER UCON DATA R436 1k TV POWER ON R437 1k SYSTEM CONTROLLER IC401 µPD789478GC -A31-8BT XT1 R441 4.7k ICO R480 1k VOL DAT R479 1k VOL CLK R478 1k RADIO CLK MUTE RADIO DATA CD OPEN DET RADIO CE R475 1k AVDD COUNT COUNT R476 1k PLL_CE R477 1k PLL_DATA PLL_CLK C428 100p VOLCLK C429 100p VOLDAT Q401 2SC4081 S617 OFF SIRCS XT2 X402 32.768KHz C430 22p VDD0 R473 220k C431 22p R432 10k SEG18 VSS0 R428 10k SEG14 R429 10k SEG15 R430 10k SEG16 X2 X1 C432 0.01 C433 2.2 X401 4.19MHz L402 100µH R431 10k SEG17 RESET A MUTE R481 10k C437 0.01 R427 10k SEG13 RADIO ON R482 1k AMUTE

Q403 DTA124EUA -T106

R607 100k

R608 220k

R617 47k

R618 470k

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

COM3

COM2

COM1

COM0

VLC0

VLC1

VLC2

NC

NC TIMER LED CD ON R483 1k R485 1k R484 1k

S609 VOLUME -

C441 0.01 CDON RADIOON Q404 DTC144EUA -T146 TV POWER

S604

R630 470k

SEG12 S615

R609 220k

R610 470k

R619 100k

S605 VOLUME +

R620 220k

S610

R631 100k R633 220k

R629 47k
S611 CD OPEN /CLOSE

R621 220k

R622 470k

R634 470k

R632 220k

UCON SCK

R438 100 TV DATA SCK R439 1k TV DATA SI RESET

S610 TUNE/CH TIME SET/ TV MENU SET

S612

UCON LATCH RESET

+ 2 1

NC R440 1k

CD CLOSE DET

L401 100µH

BUFFER

TV DATA SO

ENCODE-

CD DATA IN

BUZZER

CD CE

AC IN

WRQ

DRF

XRST

KEY2

KEY3

KEY0

AVSS

KEY1

ENCODE+ R447 1k

CD CLK

2

1

CD DATA

FSEQ

POWER ON

CD CLOSE

R474 1k

RC

C468 100p

C465 100p

S618 CLOCK C450 1000p

JC403 0

R635 22k

R636 47k

R442 1k

C407 2.2

C408 0.01

C466 100p

CD OPEN

R472 1k

C423 0.01

C427 100p

C426 100p

C425 100p

C424 0.01

C405 0.01

C406 100

10V

100p

0

R449 1k

R639 47k

R640 47k S620 ENTER

R637 22k

R638 47k S619 TV MENU

R448 1k

C409 0.01 KEY0 KEY3 RC

C412 0.01

JC401

C416

D402 1SS119

R465 100

R466 100

R467 100

R462 10k

R468 10k

R486 220k

R464 47

R461 1k

R463 1k

R469 1k

R459 1k

R470 1k

D401 1SS119 RESET SIGNAL R487 470k R499 0

R497 100k

R496 100k

WRQ

TP604

KEY1 KEY2 C451 100p

C448 10 50V

DRF

RES

R471 10k

GENERATOR IC402 XC61CN2002MR

DO

CL

CE

DI

RST

VIN

C444 0.1

R498 100k C443 0.1

G

C414 100p

C415 100p

C417 100p

C418 100p

C419 100p

R451 100k

R450 220k

R453 100k

R455 100k

R457 100k

C420 0.01

R492 10k

0.01

C410 0.01

C411 0.01

R488 1k

C447 0.01

C446 0.1

C445 470 10V

S703 CD TRAY OPEN DETECT

1

CN401 2P

2

C413

R460 1k

S702 CD TRAY CLOSE DETECT 2 1

CN411 2P

R489 0

C449 2200p

A10

A11

A12

A13

(Page 33)

32

32

A14

A15

A1

A2

A3

A5

A6

A8

A9

ICF-CD555TV
6-13. SCHEMATIC DIAGRAM ­ MAIN Section (2/3) ­ · See page 43 for IC Block Diagrams.

(Page 32)
A10 A11 A12 A13 A14 A15 A1 A2 A3 A5 A6 A8 A9

(2/3)

CD TRAY

A OUT

GND

OPEN/CLOSE

B OUT

A IN

NC

NC

NC

MOTOR DRIVE

B IN

VCC

AMUTE CN412 2P C359 0.1 C355 47 10V IC305 BA6208 D104 1SS355 R132 1k C130 4700p Q101 2SC4081 LINE AMP C110 4.7 50V R112 470 C131 100 10V R111 470k R128 1k R131 100

M301 CD TRAY OPEN/CLOSE

1

2

C357 0.1

C356 0.1

R337 220k D303 IN4002B

C340 2.2 50V CDON

Q104 2SC4081

R212 470 R206 10k R106 10k Q201 2SC4081 Q204 2SC4081 D204 1SS355 LINE AMP C230 4700p

Q301 KTA1271Y CD ON SWITCH R301 47k R302 1k

C231 100 10V

R231 100

Q304 DTA124EUA-T106 MUTING CONTROL SWITCH R322 2.2k D306 1SS355

C305 47 16V

Q302 DTA123JUA RADIO ON SWITCH RADIOON

R211 470k C210 4.7 50V

R228 1k

R232 1k

C129 470p C229 470p R214 100k

C325

0.22

D203 1SS355 R213 1k

C211 10 50V

C326 0.1 IC302 BD3870FS CAP C108 2200p C109 1000p C209 1000p C208 2200p R207 470k C206 0.1 C207 0.22 R107 470k C107 0.01 C106 0.047 R209 2.2k R210 220k R110 220k R109 4.7k R118 10k

R203 10k

R105 22k

R103 10k

V LIN TNF L C105 2.2 C205 2.2 V RIN TNF R SEL R BNF L C101 C201 2.2 2.2 2.2 2.2 2.2 2.2 SEL L BOUT L CD LIN BNF R CD RIN BOUT R R LIN LOUT R RIN ROUT TV LIN VCC TV RIN SI R316 1k R315 1k

R114 100k R218 10k C111 10 50V Q202 2SC4081 AGC

C122 C222

4.7 4.7

50V 50V

R102 47k

CN303 13P

R202 47k D914 1N4002B C980 100 16V D913 1N4002B C982 1000 16V C990 100 50V D915 1N4002B

C102 C202 C103 C203

Q102 2SC4081 VOLDAT VOLCLK C322 47 16V AGC R113 1k D103 1SS355

R115 47k

R127 22k

R227 22k

R205 22k

R251 47k

R151 47k

R338 1k

C983 220 35V

R104 100k

R204 100k

D916 1N4002B

VREF SC GND

R141 10k

CN408 14P 3.3V GND

C984 470 50V

D912 1N4002B D918 1N4002B

C321 0.01

C323 100p

C324 100p

R241 10k

C981 100 50V

D917 1N4002B

C320 47 16V

INPUT SELECT SWITCH, ELECTRICAL VOLUME, SURROUND/TONE CONTROL

R215 47k R336 10k JC405 0

(Page 41)

C308 100p

LCH RCH RES DI CE CL WRQ RES DI CE CL

Q959 2SB1694

Q305 DTC144EUA-T106

R969 47k

STANDBY SWITCH

Q959,960

C309 100p

R970 2.2k

TV ON SWITCH

PS904

PS903

C310 100p

Q954 KTC3203Y Q960 2SC4081 +3.3V REGULATOR

D307 1SS355 Q951 2SD2396K

Q951,952,955 +5V REGULATOR

WRQ DO DRF

(Page 27)

DO DRF FSEQ 6V PGND

Q956 2SD2396K R964 47 +5V REGULATOR IC902 BA05T +9V REGULATOR IC901 XC6202P902FR O G I Q956-958 +6V REGULATOR Q957 2SA1576A O G R963 10k I D958 DA204U +3.9V REGULATOR R959 0 R958 220 IC903 XC6201P392PR

R952 47 D951 DA204U

11

MUTE COUNT PLL CLK PLL DATA PLL CE LCH R +B RCH COUNT

O G

I

Q952 2SA1576A

R951 10k

C962 220 10V

D956 MTZJ-T-77-3.9B

C958 220 10V

C959 220 10V

470 10V

C956 0.01

C961 0.01

C957 0.01

C960 0.01

C953 0.01

C965 470 10V

PLL_CLK

D957 1SS355

D955 1SS355

D953 1SS355

C954 470 10V

C952 470 10V

D960 1SS355

C966 0.01

PLL_DATA PLL_CE

D959 MTZJ-T-77-6.8B

C978 100 16V

C979 0.1

C977 0.1

C975 0.1

C974 100 16V

R965 100

D952 MTZJ-T-77-5.6B

R953 0

C967

Q955 2SC4081 C951 0.01

C123 2.2

Q958 2SC4081 C964 0.01

C223 2.2

(Page 29)
1

GND VT S-GND

C963 0.01 R968 2.2k R967 4.7k R960 10k

R962 2.2k

R961 4.7k

C968 0.01

R966 10k

CN302 5P

C973 0.1

C972 22 25V

C991 0.01

C989 0.01

C971 4700 25V

C970 4700 25V

CN304 1P

(Page 41)
(CHASSIS)

(Page 34)

33

33

C10

C1

C2

C3

C4

C5

C6

C7

C8

C9

ICF-CD555TV

6-14. SCHEMATIC DIAGRAM ­ MAIN Section (3/3) ­

· See page 42 for Waveform.

· See page 43 for IC Block Diagram.

(Page 33)
C10

C1

C2

C3

C4

C5

C6

C7

C8

(3/3)

TU501 TV TUNER UNIT (BTF-PA402Z)

50V

5V(D/D)

5V(TU)

RF AGC

ST IND

VHF/UHF

9V(MPX)

DET OUT

AFT OUT

SAP IND

F MONO

MODE

R OUT

MUTE

L OUT

5V(IF)

C251 0.47

C151 0.47

GND

SDA

SCL

VIF

NC

AS

50V

R257 220k

C9

CN409 2P S701 DISPLAY

R157 220k

R359 100k

R360 10k

RELEASE C152 0.47 50V

R250 4.7k

C250 0.47 50V

JC404 0

R258 220k

C350 470 16V JK301 R R154 22k L C351 47 16V AUDIO INPUT R352 0 R327 100k VIDEO C352 10 50V

VDD RTIN(H) ROUT RVIN(L) LOUT TIN(H) LTIN(L) VOUT R150 4.7k C150 0.47 50V R328 100k LVIN(L) VIN(L) CNT1(A) INH CNT2(B) VEE CNT3(C) VSS IC304 BU4053 L501 22µH TV/VIDEO SELECT SWITCH R517 100k R501 1k L503 10µH R507 220k Q350 2SC4081 VIDEO R158 220k R512 2.2k

C252 0.47 50V

R254 22k

R353 100k

Q501 2SB1013 Q501,505 TV ON SWITCH

L502 10µH

R255 100k

R155 100k

R355 470

C521 470 10V

C509 100p

C510 100p

C511 100p

C502 0.01

C513 0.01

C515 0.01

C504 22p

C503 22p

R504 10k

R513 2.2k

R503 1k

R502 1k

R508 1k

R509 1k

R510 1k

R515 220k

C518 10 50V

4700p

C501 1

C338 100 16V

C506 1

C512 1

C514 1

Q505 DTC144EUA-T106

C520 470 10V

C505 22 25V

C507 0.01

C508

R361 100k

R362 10k

R358 2.2k

C354 220 16V

R350 100

R356 1k

R505 47k

AMP

CN501 10P 13.5V 13.5V 13.5V INV-GND

R516 220k

C337 0.01

Q502 2SD601A AGC

P-GND P-GND P-GND 9V

TU SDATA

TU MUTE

(Page 35)

TU SCL

TU AGC

TU AFT

-12V 18V

CN502 2P CVBS V-GND

R514 4.7k

Q503 DTA124EUA-T106 AUDIO MODE SELECT SWITCH TU MUTE

C516 100 10V

C517 0.01

CN503 9P U-COM-GND 3.9V TUNER MUTE TUNER MODE TUNER F MONO

(Page 35)

TU AFT R511 4.7k Q504 DTA124EUA-T106 AUDIO MODE SELECT SWITCH TUNER AFT(A/D) TU AGC TUNER AGC TU SDATA TUNER S DATA TU SCL TUNER SCL

TV POWER

(Page 37)

B1 B2 RESET

C519 1000p

CN504 7P RESET

(Page 32)

UCON LATCH MAIN U-COM LATCH UCON SCK MAIN U-COM SCK UCON DATA MAIN U-COM S DATA TFT OPEN TV/VIDEO TV/VIDEO MUTE

(Page 37)

34

34

ICF-CD555TV

6-15. SCHEMATIC DIAGRAM ­ MONITOR Section (1/3) ­

· See page 42 for Waveforms.

· See page 43 for IC Block Diagram.

(1/3)
F1801 1A 72V
4.7k 4.7k 4.7k 4.7k 4.7k

R1803 1k

Q1802 2SB1188

R1814

R1815

R1810

R1811

R1812

R1805 1k

Q1803 2SA1385-L

L1801 100µH R1808 10k

TP1805 C1805 0.1 100V TP1806 T1801 INVERTER TRANSFORMER

CN1801 2P BACK LIGHT UNIT

Q1803,1804 SWITCHING Q1801,1802 B+ SWITCH R1801 22k R1804 1k
D1801 MA8051H

REGULATOR

-1
C1802 0.1

-2 Q1804 XN1501-TX Q1805 2SC4672 OSC Q1806 2SC4672 OSC

Q1801 2SC4081 -T106R

R1802 100k

C1801 100 25V

C1803 10 25V

R1806 2.2k

R1807 470

R1809 10k

C1804 100 25V

R1813 1M

TP1904 Q1903 2SC4672 REGULATOR Q1905 2SB1132-T100 -QR IC1901 BA05FP I G O IC1903 XC6206P332MR I G D1501 1SS356-TW11 R1902 220 C1904 100 25V C1905 100 25V R1904 2.2k R1925 47k Q1905,1906 R1903 2.2k B+ SWITCH Q1503 2SC4081 -T106R R1508 10k O

Z1

R1519 4.7k

R1518 4.7k

R1510 10k

Q1502,1503 SYNC DET

R1507 10k

Q1502 2SC4081 -T106R C1532 1 Z2

+5V REGULATOR

+3.3V REGULATOR

R1509 22k

R1515 1k SDATA

C1531 1000p

Q1906 2SC4081 -T106R C1902 100 16V C1908 0.1 C1909 100 16V C1910 0.1

SCK

50V

C1547 470p

R1513 10k

R1514 1k

R1511 1M

R1905 47k

C1525 0.022

C1527

0.47

R1506 100k Q1501 2SC4081 -T106R BUFFER

C1524 2200p

TP1907 D1953 1SS356-TW11 D1954 1SS356-TW11 C1914 100 16V C1915 0.1 Q1901 2SA1576A-T106 -QR -13V REGULATOR TP1911 Q1504,1505 SYNC SEPARATOR R1516 220k

R1504 100k

R1540 470k

22 16V

C1567 100p R1534 22k R1521 47k C1568 100p

R1512 10k

C1529 1

C1530

Q1909 2SC4081 -T106R

R1538 10k R1505 47k C1526 22 16V R1539 100k L1503 100µH

L1904 10µH
R1913 10k R1914 22k
R1527 100k R1523 47k

Q1909,1910 B- SWITCH

R1910 220k

Q1505 2SC4081 -T106R

C1528 0.022

C1523 47 25V

C1920 100 16V

R1923 0
0.01

Q1910 2SA1576A-T106 -QR R1912 47k

C1916 22 50V

C1918 47 25V

C1535 1 C1534 0.1

R1528 470 Q1504 2SC4081 -T106R C1533 4.7 50V R1517 1k C1522 1

C1919

D1901 UDZS-13B

GND2

VSS

VCOADJ

AFCDET

NRGB

SCLK

VCC1

VDIN

C1917 0.01

R1524 1k

R1522 0

R1520 1k

SDATA C1536 2.2 PONRST

NAVISYNCIN

HSYNCLOCK

CSYNCOUT

CSYNCIN

+BCLKFLT

SCP

POL

HDOUT HDOUT VDOUT VDOUT RWMOUT VCC3 VCOMOUT C1521 2.2 50V R-OUT C1520 0.1 R-OUTSET R1503 47 R-OUT VCC2 C1519 0.01 C1549 1

R1911 2.2k Q1911 2SA1576A-T106 -QR

Q1902 2SC4081-T106R +17V REGULATOR TP1912
C1566 1000p

C1570 22p C1569 10p C1538 7p L1504 47µH

C1537 4.7 50V

COMDC SECAM BLACK ADJ YIN

(Page 36)

L1903 10µH C1926 0.01 R1926 47k CN1401 10P 13.5V 13.5V 13.5V INV-GND P-GND P-GND P-GND 9V C1928 0.01 C19