Text preview for : Sharp_-_System_CD-BP1200W,_1250W_-_Service_Manual.pdf part of Sharp CD-BP1200W, 1250W Sharp - System CD-BP1200W, 1250W - Service Manual
Back to : Sharp_-_System_CD-BP1200W | Home
CD-BP1200W/1250W
SERVICE MANUAL
No. S6052CDP1200W
MINI COMPONENT SYSTEM
MODEL
Illustration: CD-BP1200W
CD-BP1200W
CD-BP1200W Mini Component System consisting of CD-BP1200W (main unit) and CP-BP1200 (speaker system).
MINI COMPONENT SYSTEM
MODEL
Illustration: CD-BP1250W
CD-BP1250W
CD-BP1250W Mini Component System consisting of CD-BP1250W (main unit), CP-BP1250 (front speaker) and GBOXS0043AWM1 (surround speaker).
· In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2 VOLTAGE SELECTION ..................................................................................................................................................... 2 SPECIFICATIONS ............................................................................................................................................................. 3 NAMES OF PARTS ........................................................................................................................................................... 4 OPERATION MANUAL ...................................................................................................................................................... 6 DISASSEMBLY .................................................................................................................................................................. 8 REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 11 ADJUSTMENT ................................................................................................................................................................. 12 NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 14 TYPES OF TRANSISTOR AND LED ................................................................................................................................ 14 BLOCK DIAGRAM ........................................................................................................................................................... 15 SCHEMATIC DIAGRAM .................................................................................................................................................. 18 VOLTAGE ........................................................................................................................................................................ 27 WIRING SIDE OF P.W.BOARD ....................................................................................................................................... 28 WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 34 TROUBLE SHOOTING .................................................................................................................................................... 35 FUNCTION TABLE OF IC ................................................................................................................................................ 39 FL DISPLAY ..................................................................................................................................................................... 45 REPLACEMENT PARTS LIST/EXPLODED VIEW
SHARP CORPORATION 1
This document has been published to be used for after sales service only. The contents are subject to change without notice.
CD-BP1200W/1250W
SAFETY PRECAUTION FOR SERVICE MANUAL
Precaution to be taken when replacing and servicing the Laser Pickup. The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam. (1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens. (2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping. (3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup. (4) Under no circumstances look directly into the Pickup Lens at any time. (5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation exposure.
CAUTION
This Mini Component System is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear cover. Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. As the laser beam used in this compact disc player is harmful to the eyes, do not attempt to disassemble the cabinet. Refer servicing to qualified personnel only. Laser Diode Properties Material: GaAIAs Wavelength: 780 nm Emission Duration: continuous Laser Output: max. 0.6 mW
CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS. VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT. ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER. VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE. ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI. VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT INSTRUMENT. ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.
VOLTAGE SELECTION
Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage as follows, turn the selector with a screwdriver until the appropriate voltage number appears in the window (110V, 127V, 220V or 230V - 240V AC). QACCE0007AW00 QACCJ0006AW00
QACCL0002AW00/QACCZ0008AW00
QPLGA0003AWZZ
QPLGA0004AWZZ
QACCA0004AW00
Figure 2 AC POWER SUPPLY CORD AND PLUG ADAPTOR 2
CD-BP1200W/1250W
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.
SPECIFICATIONS
CD-BP1200W/1250W
General
Power source: Power consumption: Dimensions: AC 110/127/220/230-240 V, 50/60 Hz 32 W Width; 270 mm (10-5/8") Height; 300 mm (11-13/16") Depth; 373 mm (14-11/16") 5.0 kg (11.0 lbs.)
Cassette deck section
Frequency response: Signal/noise ratio: 50 - 14,000 Hz (Normal tape) 55 dB (TAPE 1, playback) 50 dB (TAPE 2, recording/playback) 0.3 % (WRMS)
Wow and flutter:
Weight:
Amplifier section (CD-BP1200W)
Output power: MPO; 32 W (16 W + 16 W) (10 % T.H.D.) RMS; 20 W (10 W + 10 W) (10 % T.H.D.) RMS; 14.6 W (7.3 W + 7.3 W) (0.9 % T.H.D.) Output terminals: Front speakers; 8 ohms Headphones; 16 - 50 ohms (recommended; 32 ohms)
CP-BP1200/1250
Type: Maximum input power: Rated input power: Impedance: Dimensions: 10 cm (4") full-range speaker 20 W 10 W 8 ohms Width; 220 mm (8-11/16") Height; 300 mm (11-13/16") Depth; 180 mm (7-1/16") 2.0 kg (4.4 lbs.)/each
Weight:
Amplifier section (CD-BP1250W)
Output power: MPO; 32 W (16 W + 16 W) (10 % T.H.D.) RMS; 20 W (10 W + 10 W) (10 % T.H.D.) RMS; 14.6 W (7.3 W + 7.3 W) (0.9 % T.H.D.) Output terminals: Front speakers; 8 ohms Surround speakers; 16 ohms Headphones; 16 - 50 ohms (recommended; 32 ohms)
GBOXS0043AWM1
Type: Maximum input power: Rated input power: Impedance: Dimensions:
CD-BP1250W Only
8 cm (3-3/32") full-range speaker 10 W 5W 16 ohms Width; 150 mm (6") Height; 150 mm (6") Depth; 78 mm (3") 0.4 kg (0.9 lbs.)/each
Weight:
Compact disc player section
Type: Signal readout: D/A converter: Frequency response: Dynamic range: 3-disc multi-play compact disc player Non-contact, 3-beam semi-conductor laser pickup 1-bit D/A converter 20 - 20,000 Hz 90 dB (1 kHz)
Specifications for this model are subject to change without prior notice.
Tuner section
Frequency range: FM; 88 - 108 MHz AM; 531 - 1,602 kHz
3
CD-BP1200W/1250W
NAMES OF PARTS
CD-BP1200W/1250W
Front panel
1. (CD) Disc Number Indicators 2. Timer Indicator 3. Record Indicator 4. Sleep Indicator 5. Extra Bass Indicator 6. (CD/TUNER) Memory Indicator 7. FM Stereo Mode Indicator 8. FM Stereo Indicator 9. (CD) Repeat Indicator 10. (CD/TAPE) Play Indicator 11. (CD) Pause Indicator 12. (CD) Disc Tray 13. Timer Set Indicator 14. On/Stand-by Button 15. Timer/Sleep Button 16. Clock Button 17. Function Selector Buttons 18. Headphone Socket 19. Equalizer Mode Selector/Extra Bass/ Demo Mode Button 20. Volume Up/Down Buttons 21. Tuning and Time Up/Down Buttons 22. (TAPE 1) Cassette Compartment 23. (TAPE 2) Cassette Compartment 24. (CD) Disc Skip Button 25. (CD) Track Down/Review Button (TUNER) Preset Down Button (TAPE 2) Rewind Button 26. (CD) Track Up/Cue Button (TUNER) Preset Up Button (TAPE 2) Fast Forward Button 27. (CD) Open/Close Button 28. Memory/Set Button 29. (CD/TAPE) Stop Button 30. (TAPE 2) Record Pause Button 31. (CD) Play/Repeat Button (TAPE) Play Button
1
2 3 4
5
6
7 8
9
10 11
12 13 14 15 16 17 18 19 20 21
22
23
24 25 26 27 28 29 30 31
4
CD-BP1200W/1250W
Rear panel
1. AC Voltage Selector 2. AC Power Input Socket 3. Surround Speaker Terminals (CD-BP1250W Only) 4. Front Speaker Terminals 5. Span Selector Switch 6. FM Aerial Earth Terminal 7. FM 75 Ohms Aerial Terminal 8. AM Loop Aerial Input Socket
3 4 5 1 2 6 7 8
CP-BP1200/1250
1. Full-Range Speaker 2. Bass Reflex Duct 3. Speaker Wire
1 2
3
GBOXS0043AWM1
CD-BP1250W Only
1. Full-Range Speaker 2. Speaker Wire
1 2
Remote control
1. Remote Control Transmitter LED CD control section 2. Disc Number Select Buttons 3. Memory Button 4. Pause Button 5. Clear Button 6. Track Down/Review Button 7. Track Up/Cue Button 8. Disc Skip Button 9. Play/Repeat Button 10. Stop Button 11. Random Button Tuner control section 12. Preset Up/Down Buttons Tape control section 13. (TAPE 1) Play Button 14. (TAPE 2) Record Pause Button 15. (TAPE 1/2) Stop Button 16. (TAPE 2) Play Button 17. (TAPE 2) Rewind Button 18. (TAPE 2) Fast Forward Button Common section 19. Equalizer Mode Selector Button 20. Function Selector Buttons 21. On/Stand-by Button 22. Extra Bass Button 23. Volume Up/Down Buttons
5
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 1617 18 19 20 21 22
23
CD-BP1200W/1250W
OPERATION MANUAL
PREPARATION FOR USE
Connecting the AC power lead
Check the setting of the AC voltage selector located on the rear panel before plugging the unit into an AC socket. If necessary, adjust the selector to correspond to the AC power voltage used in your area. Selector adjustment: Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110 V, 127 V, 220 V or 230 V - 240 V AC).
AM/FM interval (span)
The International Telecommunication Union (ITU) has established that member countries should maintain either a 10 kHz or a 9 kHz interval between broadcasting frequencies of any AM station. The illustration shows the 9 kHz interval zones (regions 1 and 3), and the 10 kHz interval zone (region 2). Before using the unit, set the SPAN SELECTOR switch (on the rear panel) to AM tuning interval (span) of your area.
1
2
To change the tuning zone:
1
To an AC socket Notes: Plug the AC power lead into an AC socket, after any connections. Unplug the AC power lead from the AC socket if the unit will not be in use for a prolonged period of time. Never use a power lead other than the one supplied. Use of a power lead other than the one supplied may cause an electric shock or fire. AC Plug Adaptor In areas (or countries) where an AC socket as shown in illustration is used, connect the unit using the AC plug adaptor supplied with the unit, as illustrated. The AC plug adaptor is not included in areas where the AC wall socket and AC power plug can be directly connected (see illustration ). Note for users in Australia and New Zealand: An AC plug adaptor is not supplied if the lead has an Australian Standard plug.
Press the ON/STAND-BY button to enter the standby mode. Set the SPAN SELECTOR switch to "50/9" for 9 kHz AM interval (50 kHz FM interval), and "100/10" for 10 kHz AM interval (100 kHz FM interval). Whilst pressing down the / button and the EQUALIZER/X-BASS/DEMO button, hold down the ON/STAND-BY button for at least 1 second. "CLEAR AL" will appear.
2 3
Caution: The operation explained above will erase all data stored in memory including clock and timer settings, and tuner and CD presets.
6
SETTING THE CLOCK
or ) button to adjust
PREPARATION FOR USE
Remote control
When inserting or removing the batteries, push them towards the battery terminals. Installing the batteries incorrectly may cause the unit to malfunction.
RESETTING THE MICROCOMPUTER
In this example, the clock is set for the 24-hour (0:00) system.
6
Press the TUNING/TIME ( the hour.
(Main unit operation)
Reset the microcomputer under the following conditions: To erase all of the stored memory contents (clock and timer settings, and tuner and CD presets). If the display is not correct. If the operation is not correct.
ON/ STAND-BY
1 2
Press the ON/STAND-BY button to enter the standby mode.
CLOCK
Press the TUNING/TIME ( or ) button once to advance the time by 1 hour. Hold it down to advance continuously. When the 12-hour display is selected, "AM" will change automatically to "PM".
MEMORY/SET
7
ON/ STAND-BY
Press the MEMORY/SET button.
Whilst pressing down the / button and the EQUALIZER/X-BASS/DEMO button, hold down the ON/STAND-BY button for at least 1 second. "CLEAR AL" will appear.
TUNING/TIME ( )
or ) button to adjust
1
Press the ON/STAND-BY button to enter the standby mode.
8
2 "AA" size batteries (UM/SUM-3, R6, HP-7 or similar)
Press the TUNING/TIME ( the minutes.
EQUALIZER X-BASS/ DEMO
2
Press the CLOCK button.
3
15
15
Within 5 seconds, press the MEMORY/SET button.
Press the TUNING/TIME ( or ) button once to advance the time by 1 minute. Hold it down to change the time in 5-minute intervals. The hour setting will not advance even if minutes advance from "59" to "00".
0.2 m - 6 m (8" - 20')
7
9
Press the MEMORY/SET button.
Caution: The operation explained above will erase all data stored in memory including clock and timer settings, and tuner and CD presets.
4
Press the TUNING/TIME ( time display mode.
or
) button to select the
The clock starts operating from "0" second. (Seconds are not displayed.) And then the clock display will disappear after a few seconds.
0:00
AM 0:00
AM 12:00
To see the time display: Press the CLOCK button. The time display will appear for about 5 seconds.
"0:00"
The 24-hour display will appear.
(0:00 - 23:59)
"AM 0:00"
The 12-hour display will appear.
(AM 0:00 - PM 11:59)
Note: The clock display will flash on and off at the push of the CLOCK button when the AC power supply is restored after a power failure occurs or after the AC power lead is disconnected. If this happens, follow the procedure below to change the clock time.
"AM 12:00"
The 12-hour display will appear.
Precautions for battery use: Insert the batteries according to the direction indicated in the battery compartment. Replace all old batteries with new ones at the same time. Do not mix old and new batteries. Remove the batteries if they are weak or if the unit will not be used for long periods of time. This will prevent potential damage due to battery leakage. Caution: Do not use rechargeable batteries (nickel-cadmium battery, etc.). Notes concerning use: Replace the batteries if the operating distance is reduced or if the operation becomes erratic. Periodically clean the transmitter LED on the remote control and the sensor on the main unit with a soft cloth. Exposing the sensor on the main unit to strong light may interfere with operation. Change the lighting or the direction of the unit. Keep the remote control away from moisture, excessive heat, shock, and vibrations.
(AM 12:00 - PM 11:59)
Note that this can only be set when the unit is first installed or it has been reset.
To change the clock time: 1 Press the CLOCK button. 2 Within 5 seconds, press the MEMORY/SET button. 3 Perform steps 6 - 9 above.
CD-BP1200W/1250W
5
Press the MEMORY/SET button.
To change the time display mode: 1 Perform steps 1 - 2 in "RESETTING THE MICROCOMPUTER". 2 Perform steps 1 - 9 above.
CD-BP1200W/1250W
DISASSEMBLY
Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance: 1. Take cassette tape and compact disc out of the unit. 2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit. 3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling. 4. Take sufficient care on static electricity of integrated circuits and other circuits when servicing. CD-BP1200W/1250W
STEP 1 2 3 REMOVAL Top Cabinet Side Panel (Left/right) CD Player Unit/ CD Tray Cover PROCEDURE 1. Screw ..................... (A1) x4 1. Screw ..................... (B1) x2 2. Screw ..................... (B2) x2 1. Turn on the power supply, open the disc tray, take out the CD cover, and close. (Note 1) 2. Screw ..................... (C1) x1 3. Hook ....................... (C2) x3 4. Hook ....................... (C3) x2 5. Socket .................... (C4) x2 1. Screw ..................... (D1) x8 FIGURE 8-1 8-1 8-2
(B1)x2 ø3x12mm Rear Panel (B2)x1 ø3x10mm Side Panel (Left)
CD-BP1200W/1250W
(A1)x2 ø3x12mm Top Cabinet Front Panel
Side Panel (Right) (A1)x2 ø3x12mm
(B2)x1 ø3x10mm
Figure 8-1
CD Servo PWB (C4)x2 1 CD Tray Cover (C2) x3
4 5
Rear Panel
8-2 9-2
Main/Headphones 1. Screw ........................ (E1) x8 PWB 2. Socket .................... (E2) x4 3. Flat Cable ............... (E3) x1 4. Lug Wire ................. (E4) x1 Front Panel Display PWB 1. Screw ..................... (F1) x3 1. Screw ..................... (G1) x9 2. Flat Cable ............... (G2) x1
(C3) x1 Pull 1 2
6 7 8 9 10
9-2 9-3 9-3 9-4 8-3 9-1
CD Player Unit Rear Panel (C3)x1
Tape Mechanism 1. Open the cassette holder. 2. Screw...................... (H1) x5 Turntable Disc Tray 1. Hook ....................... (J1) x2 2. Cover ..................... (J2) x1 1. Turn fully the lock lever in the arrow direction. 2. While holding the lock lever, rotate the cam gear until the cam gear rib engages with the clamp lever. 3. Push the slide holder backward to engage the claw with the groove and remove it in the direction of the arrow. .............. (K1) x6 1. Screw ..................... (L1) x1 2. Hook ....................... (L2) x3 3. Socket .................... (L3) x4 1. Hook ....................... (M1) x2 2. Hook ....................... (M2) x3
(C1)x1 ø3x12mm Main PWB (D1)x8 ø3x8mm
Front Panel
9-5
Figure 8-2
11
CD Servo PWB (Note 2) CD Mechanism
9-6
Lock Lever
12
10-1
CD Player Unit (Bottom View)
Note 1: How to open the changer manually. (Fig. 8-3) 1. In this state, turn fully the lock lever in the arrow direction through the hole on the loading chassis bottom. 2. While holding the lock lever, rotate the cam gear anti clockwise until the cam gear rib engages with the clamp lever. (Fig. 9-1) 3. After that, push forward the CD slide holder. Note 2: 1. After removing the connector for the optical pickup from the connector, wrap the conductive aluminium foil around the front end of the connector to protect the optical pickup from electrostatic damage. 8
Figure 8-3 Note 3: 1. Be careful not to break the claw of the CD mechanism. 2. When fining back the cam gear assembly, let it lock by front movement.
CD-BP1200W/1250W
(J2) x1
Clamp Lever
Turntable
CD Player Unit (Top View)
Cam Gear Rib
(J1) x2
Disc Tray
Figure 9-1
(E3)x1
Loading Chassis
(E2)x2 Front Panel
(E2)x1 Headphones PWB
Figure 9-4
(K1) x3
(E1)x7 ø3x10mm
2
Disc Tray
(E2)x1
(E4)x1
1
(K1) x3 Loading Chassis
Main PWB
(F1)x3 ø3x8mm
(E1)x1 ø3x10mm
Figure 9-2
Figure 9-5
(G2)x1 Display PWB Front Panel
(L3) x2
(G1)x9 ø3x10mm Tape Mechanism (H1)x5 ø3x10mm Open Cassette Holder
(L1)x1 CD Servo ø3x8mm PWB
Disc Tray
(L2) x3
(L3) x2
Figure 9-3 9
Figure 9-6
CD-BP1200W/1250W
CD Mechanism (M2) x3
(M1) x1
(M1) x1 Disc Tray
Figure 10-1 CP-BP1200/1250
STEP 1 REMOVAL Speaker PROCEDURE 1. Net Frame Ass'y ..... (A1) x1 2. Duct Panel .............. (A2) x1 3. Screw ...................... (A3) x4 FIGURE 10-2 10-3
(A1)x1
Speaker Box Speaker
(A2)x1
Driver should be pried away from Speaker Box.
(A3)x4 ø3.5x13mm
Speaker Box
Screwdriver
Figure 10-2
Figure 10-3
10
CD-BP1200W/1250W
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 8 of the disassembly method to remove the tape mechanism.
TAPE 2 Record/Playback Head
How to remove the record/playback and erase heads (Tape 2) (See Fig. 11-1)
1. Carefully remove the record/playback head and erase head screws (A1) x 2 pcs.
Erase Head
How to remove the playback head (Tape 1) (See Fig. 11-2)
1. Carefully remove the playback head screws (B1) x 2 pcs.
(A1)x2 Ø2 x 9mm
Figure 11-1
How to remove the pinch roller (Tape 1/2) (See Fig. 11-3)
1. Carefully bend the pinch roller pawl in the direction of the arrow , and remove the pinch roller (C1) x1 pc., in the direction of the arrow . Note: When installing the pinch roller, pay attention to the spring mounting position.
(B1)x1 Ø2x9mm
TAPE 1 Playback Head
How to remove the belt (Tape 2) (See Fig. 11-4)
1. Remove the main belt (D1) x 1 pc., from the motor side. 2. Remove the FF/REW belt (D2) x 1 pc.
(B1)x1 Ø2x5mm
How to remove the belt (Tape 1) (See Fig. 11-4)
1. Remove the main belt (E1) x 1 pc., from the motor side. 2. Remove the FF/REW belt (E2) x 1 pc.
Figure 11-2
How to remove the motor (See Fig. 11-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Pinch Roller Pawl
TAPE 2
Pinch Roller (C1)x1 Pull
Pull
Figure 11-3
Motor
Motor TAPE 2 FF/REW Belt (D2)x1 Motor TAPE 2 Main Belt (D1)x1 TAPE 1 Main Belt (E1)x1
(F1) x2
Ø 2.6 x 5mm
(D1)x1 Main Belt (E1)x1 Main Belt TAPE 1 FF/REW Belt (E2)x1
Figure 11-5 11
Figure 11-4
CD-BP1200W/1250W CD MECHANISM SECTION
Perform steps 1, 2, 3, 9 and 12 of the disassembly method to remove the CD mechanism.
How to remove the loading motor (See Fig. 12-1)
1. Bend the hooks (A1) x 5 pcs., to remove the T/T Up/Down motor. 2. Remove the drive belt (A2) x 1 pc.
T/T Up/Down Motor Disc Tray (A1)x2 (A1)x3
Pulley Motor Drive Belt (A2) x1
Figure 12-1
How to remove the pickup (See Fig. 12-2)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2). 2. Remove the stop washer (B3) x 1 pc., to remove the gear (B4). 3. Remove the pickup. Note After removing the connector for the optical pickup from the connector, wrap the conductive aluminium foil around the front end of connector to protect the optical pickup from electrostatic damage.
Stop Washer (B1) x2 (B3) x1 ø2.6 x6mm
Pickup Shaft (B2) x1 CD Mechanism Gear (B4) x1
Figure 12-2
ADJUSTMENT
MECHANISM SECTION
· Driving Force Check
Torque Meter Play: TW-2111 Specified Value Tape 1: Over 80 g Tape 2: Over 80 g Normal speed MTT-111
· Tape Speed
Test Tape Adjusting Point Variable Resistor in motor. Specified Value Instrument Connection
· Torque Check
Torque Meter Specified Value Tape 1 Play: TW-2111 Fast forward: TW-2231 Rewind: TW-2231 30 to 80 g.cm -- -- Tape 2 30 to 80 g.cm 70 to 180 g.cm 70 to 180 g.cm
3,000±30 Hz Speaker terminal (Load resistance: 6 ohms)
TAPE MECHANISM
Motor Variable Resistor in motor
Figure 12-3 12
CD-BP1200W/1250W TUNER SECTION
fL: Low-range frequency fH: High-range frequency · AM IF/RF Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency Frequency Display 1,602 kHz 531 kHz 990 kHz Setting/ Instrument Adjusting Connection Parts T351 *1 (fL): T306 *2 1.1 ± 0.1 V (fL): T303 *1
· FM RF Signal generator: 400Hz, 22.5 kHz dev., FM modulated
Test Stage Frequency Frequency Display FM Band Coverage FM RF -- 87.50 MHz Setting/ Adjusting Point T301(fL): 3.4 V ± 0.1V L312 Instrument Connection *1 *2
AM IF AM Band Coverage
450 kHz --
98.00 MHz 98.00 MHz (10-30 dB)
*1. Input: Antenna *2. Input: Antenna
Output: TP301 Output: Speaker terminal
AM Tracking 990 kHz
*1. Input: Antenna *2. Input: Antenna
Output: TP302 Output: TP301
SO302 FM TERMINAL
CNP302 AM LOOP ANTENNA
MAIN PWB
1
IC301
T303
AM TRACKING fL
L312 TP301 R381 T301 FM BAND COVERAGE fL T351 AM IF TP302 R357 T302 FM IF FM RF AM BAND COVERAGE fL T306
Figure 13-1 ADJUSTMENT POINTS
CD SECTION
· Adjustment Since this CD system incorporates the following automatic adjustment functions, readjustment is not needed when replacing the pickup. Therefore, different PWB and pickup can be combined freely. Each time a disc is changed, these adjustments are performed automatically. Therefore, playback of each disc can be performed under optimum conditions. Items adjusted automatically (1) Offset adjustment (The offset voltage between the head amplifier output and the VREF reference voltage is compensated inside the IC.) * Focus offset adjustment * Tracking offset adjustment (2) Tracking balance adjustment (waveform drawing Fig. 13-2 EFBL) (3) Gain adjustment (The gain is compensated inside the IC so that the loop gain at the gain crossover frequency will be 0 dB.) * Focus gain adjustment * Tracking gain adjustment
CD ERROR CODE DESCRIPTION
Error 0001 0002 0101 0103 0201 0203 0302 0306 0307 0308 State Code [Servo System Error] Cannot detect Pickup-in SW DSP access error [Error during close operation] Open/Close SW Low High not functioning Open/Close SW High Low not functioning [Error during open operation] Open/Close SW Low High not functioning Open/Close SW High Low not functioning [Error during skip operation] Pickup-in SW is not detected During Disc 1 search, Open/Close SW or Clamp SW or Disc SW do not change to low. Clamp SW Low High not functioning Clamp SW High Low not functioning
Stopped
T
1999/04/05 20:26:47
CH2=200mV DC 10:1
CH1=500mV DC 10:1
CH3=1V DC 10:1
500ms/div (500ms/div) NORM:20kS/s
T 1
FDO
TE
3
EFBL
2
CH2 v/DIV 200mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000V CH2 : 0.000V CH3 : 0.00V CH4 : 0.00V =Record Length= Main : 100K Zoom : 2k =Trigger= Mode : SINGLE Type : EDGE CH1 Delay : 0.0ns Hold off : 0.2µs
Figure 13-2 13
CD-BP1200W/1250W
NOTES ON SCHEMATIC DIAGRAM
· Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with "Fusible" is a fuse type. · Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is micro farad. As to electrolytic capacitor, the expression "capacitance/withstand voltage" is used. (CH), (TH), (RH), (UJ): Temperature compensation (ML): Mylar type (P.P.): Polypropylene type · Schematic diagram and Wiring Side of P.W.Board for this model are subject to change for improvement without prior notice.
REF. NO SW1 SW2 SW3 SW4 SW601 SW701 SW702 SW703 SW709 SW710 SW711 SW712 SW713 DESCRIPTION OPEN/CLOSE CLAMP DISC NUMBER PICKUP IN SPAN SELECTOR ON/STAND-BY CLOCK TIMER/SLEEP DISC SKIP OPEN/CLOSE EQUALIZER/X-BASS/DEMO VOLUME UP VOLUME DOWN POSITION ON--OFF ON--OFF ON--OFF ON--OFF 50/9kHz-100/10kHz ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF
· The indicated voltage in each section is the one measured by Digital Multi meter between such a section and the chassis with no signal given. 1. In the tuner section, ( ) indicates AM < > indicates FM stereo 2. In the main section, a tape is being played back. 3. In the deck section, a tape is being played back. ( ) indicates the record state. 4. In the power section, a tape is being played back. 5. In the CD section, the CD is stopped. · Parts marked with " "( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
REF. NO SW714 SW715 SW716 SW717 SW718 SW719 SW720 SW721 SW723 SW724 SW725 SW801 CD TAPE
DESCRIPTION
POSITION ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF 110V/120V/220V/ 230-240V
TUNING /TIME DOWN MEMORY/SET REWIND FAST FORWARD PLAY/REPEAT STOP REC/PAUSE TUNING/TIME UP TUNER (BAND) VOLTAGE SELECTOR
FRONT VIEW
FRONT VIEW
E C B (S) (G) (D) (1) (2) (3) 2SC1845 F 2SC3331 KTA1266 GR KTA1271 Y KTA1273 Y KTC3203 Y KRC102 M KRC104 M KRC107 M 4204SRT7
Figure 14 TYPES OF TRANSISTOR AND LED
14
CD-BP1200W/1250W
SW1 OPEN/ CLOSE SW3 SW2 DISC CLAMP NUMBER M3 T/T UP/DOWN MOTOR
M
TO MAIN SECTION (TO IC601)
+5V(+B3)
-
1
CLAMP SW
2
3
4
5
6
CD RES
CDINT
DGND
AGND
R-CH
WRQ
L-CH
CNP11
CLK
GND
DRF
1
CNP12
2 2
3 3
4 4
5 5
6 6
DO
CE
DI
1
2
3
4
5
1
2
3
4
5
6
7
8
9 10
1
Q2
75
76
45 46 47 48
32 31
30
CONT6
CONT7
CONT4
CONT3
65 CE 66 CL 67 DI 68 DO 69 INT 70 WRQ 71 RES 72 DEF
CONT2
LCHO
RCHO
LVSS
RVSS
74 64 40 19
IC2 LC78641E SERVO/SIGNAL CONTROL
VVDD ADAVDD
13 3
SW4 PICKUP IN
CONT5 33 SLD0 26 SPD0 25
52 XOUT
RVDD
XVDD
FD0 24
RFEV HFL FE TE
XL1 16.9344MHz
51 XIN
LVDD
VDD
TD0 23
VDD5V
73
5 18 36 44 49 50
7
14
15 16
+5V
+3.3V
CONSTANT VOLTAGE
1 17 18 19 20 21 22
2
17 25
41 42
38 39 35
Q1
HFL
TE-
FE-
RFEV
TE
FE
18 VCC1 40 VCC4
29
+3.3V
30
23 11
IC1 LA9235M SERVO AMP.
FIN1 FIN2 TIN1 TIN2 LDD PD
+5V
24 VCC2 23
IC3 M63001FP FOCUS/TRACKING/ SPIN/SLED DRIVER
22 21 14 8
LASER DRIVER Q3
+3.3V
28 VCC3 4 5 6 7 15 16 26 27
9
1
2
3 4
7 8
+5V M2 SLED MOTOR
TRACKING COIL FOCUS COIL
M M
M1 SPINDLE MOTOR
PICKUP UNIT
Figure 15 BLOCK DIAGRAM (1/3) 15
CNP4
CNS4
BI4
TO DISPLAY SECTION
+
CD-BP1200W/1250W
FM ANTENNA TERMINAL 10.7mHz SO302
+B2
1
BF301
3
1
CF352
IC301 TA7358AP FM FRONT END
6 9
T302
1
CF303
3
450kHz T351
CF351
3 4
FM RF L312
5
7 8
FM OSC
1
3
X351 456kHz
1 2
T301 AM MIX
4 5 9 8 17 13
AM IF FM+B FM MO/ST GND DET VCO L FM/AM OUT MPX IN R FM/AM
IC303 LA1832S FM IFDET/ FM MPX. /AM IF
14 15
23
AM OSC IN AM LOOP ANTENNA Q302 CNP302 FM OSC
21 24 7
AM OSC OUT AM RF IN STEREO
18
16
12
1 2
1 2
T303
AM TRACKING
T306
AM BAND COVERAGE
VT
X352 4.5MHZ CLK DO VDD FM/AM MO/ST CE DI
20
1
22 16 15 11 3 4 5 6 17
IC302 LC72131 PLL(TUNER)
FM +B SWITCHING Q360 FM
7
9 10
21
+B2
+B2
23 10 15 L 11 R 14 L 12 R 13
R TUNER
TAPE L
CNS602
FROM CD SECTION CNP11
1 2 3 4 5
R
IC601 LC75341 AUDIO PROCESSOR
1 2 CLK 24 21 R 4 L
DI CE
SYSTEM MUTE Q601 Q602
L
CD
IC101 AN7345K PLAYBACK AND RECORD/ PLAYBACK AMP.
7 8 17 18
+B2
3
MUTING Q110 Q111
PLAYBACK HEAD L-CH TAPE 1 R-CH SWITCHING REC PLAYBACK HEAD REC P.B. L-CH R-CH
TAPE 2
Q104~ Q107
1 24 L(T2) 2 R(T2) 23 L NF 3 R NF 22
L(T1) R(T1) POP REDUCE
13
P.B
REC/PLAY
4 L 21 R 5 20
T1/T2 H/N
PB
6
AC BIAS
L REC R REC REF
9 REC 16 14 12
NOR/ HIGH T1/T2
7 18
L REC R
8 L NF 17 R NF 10 ALC
15
SWITCHING Q108 Q109 SWITCHING Q103
19
Q101 SWITCHING
Q102 BIAS SWITCHING Q112 L103 Q113 BAIS
ERASE HEAD
BIAS Q114 OSC L104
Figure 16 BLOCK DIAGRAM (2/3) 16
CD-BP1200W/1250W
R. PLAY F. PLAY +B2 SW601 SPAN SELECTOR T2 PLAY T1 PLAY
FL701 FL DISPLAY
1 2
4 ~ 10 11 ~ 30
31 32 33
Q702 Q703
SOLENOID
MOTOR TAPE DRIVER MOTOR
Q706 Q705 Q704
M
LED722 +B4
60 5957 5655 54 5352 51 50 49 48 4746 45 44 4342 4140 39 71 38 78 37 SYS. STOP 36 IC701 80 35 IX0337AW AVDD 34 99 SYSTEM MICROCOMPUTER 33
~ ~
VDD
1 RX701 3 +B4 2
+B4
31
VDD RESET
KEY SW701-SW703 SW709-SW721 SW723-SW725
~
Q701
VDD
100
1 4 5 6
+B4
7 ~ 9 10 111213 15 16 17 ~20 21 22 23 24
+B4 XL701 4.1943MHz TO CD SECTION
Q707 SP. DET.
3
IC704
1
+B4
DO
CE
CL
DI
Q901 Q902
KIA704ZAP RESET
2
JK901 HEADPHONES
R L SYSTEM MUTE Q601 Q602
5 2
3 IC901 LA4282 POWER AMP.
Vcc
13
7 R-OUT 11 L-OUT
10
+B1 F901 T2.5A L 250V
PT801 POWER TRANSFORMER
SO902 SPEAKER TERMINAL FRONT SPEAKER
SURROUND SPEAKER
D907-D910 CD-BP1250W ONLY
REC/PLAY SW801 VOLTAGE SELECTOR 220V F902 T1.6A L 250V SO902 AC INPUT SOCKET
KTC2026 SILICON
+B2 A10V
D911-D914
230-240V 127V 110V
IC905
IC902 KIA7810AP VOLTAGE REGULATOR
AC POWER SUPPLY CORD AC 110V/127/220/ 230-240V, 50/60Hz
+B4
+5V
IC904 KIA7805AP CONSTANT VOLTAGE REGULATOR
TF801
BAIS
Figure 17 BLOCK DIAGRAM (3/3) 17
CD-BP1200W/1250W
CD SERVO PWB-B
A
CNS1B
CNS1A
+B
Vcc Vref
7 6 5 4 3 2 1
7 6 5 4 3 2 1
7 6 5 4 3 2 1
7 6 5 4 3 2 1
CNP1
R51 R52 R53 R54 68K 68K 68K 68K R56 68K R55 68K TIN1 FIN1 FIN2 TIN2
R50 47
B
E A B F
C23 0.047
R 6 R 1.
C
IC1 LA9235M SERVO AMP.
FIN1
C11 0.47/6.3
C24 2.2/50
C25 0.1
C19 100/10
1
REF ODRV REF REF
30
VCC C12 0.1 R7 6.8K R5 39K C18 3P (CH) R6 27K
C22 100P
C 0 R1 12
FIN2
2
29
RFSW R42 120K RF-
TIN1 C54 47/10 C55 0.01
AGCON
R10 27K C20 0.1 R8 330 C17 0.0047
R80 1M
3
REF REF PH
28
C
VREF
REF
DH
C8 0.1 +B LDD GND LDON C53 0.001 C51 47/10 +B 2.7V R25 10K R47 3.3
6 7 8 9 10 11
ODRV AGCON REF REF LPF REF REF REF ODRV APC PH/BH REF LPF REF LPF REF
24 23 22 21 20 19 18 17
BH C14 0.33 RFEV FEFE TETE HFL R3 100K R4 10K
C42 68P
AGON EFBL
12 13
C82 0.022 C41 100/10
D
1.5V
TEST0 14 TES1
16 TEST
3.3V Q3 KTA1266GR LASER DRIVER
15
4
D93 DS1SS133
C26 0.047
C28 47/10 R43 220K +B +B
C7 10/16
TIN2 4 C6 100/10 REF REF1
27 26 25
RF NC PH C13 0.01
5
R15 10K
5
13
E
C52 0.01
+B
+B
TR+ FO+ FOGND
FO+
3 4 5
PD VR
3 4 5 6 7 8
CNS2B
3 4 5 6 7 8
CNS2A
3 4 5 6 7 8
FO+ FOGND PD VR LD CNP2
4 5 6
+
FOTR+ TR-
FO-
F
TR-
IC3 M63001FP FOCUS/TRACKING/ SPIN/SLED DRIVER
6 7 8
7 8 9 10
ACTUATOR
LD
GND
PICKUP UNIT
11 12 13 14
SLSL+ SLDO +B R48 6.8K VCC1 STANDBY Vref MUTE
15
+ + -
16 17 18 19 20 21
+ + + + + -
G
CNS3B CNS3A
C50 100/16 SPSP+ SL+ SLPUIN GND(D) CNP3 +B
CNP3A M1 SPINDLE MOTOR M2 SLED MOTOR SW4 PICKUP IN
+
M
+
6 5 4 3 2 1
6 5 4 3 2 1
6 5 4 3 2 1
6 5 4 3 2 1
M
-
H
· NOTES ON SCHEMATIC DIAGRAM can be found on page 14.
1 2 3 4 5 6
Figure 18 SCHEMATIC DIAGRAM (1/9) 18
C49 100/16
CD MOTOR PWB-C
+
-
-
-
2
2
2
2
TR+
C46 0.022
FO FO+
3
+
-
TR+
1
1
1
1
TR-
FD
2
+
+
TR-
FDO
-
+
+
-
TDO
TO
1
LD_M+
-
42
-
LD_MVCC4 LOADING M+ LOADING M-
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
+
C47 100/16
GND
VCC3 SPSP+ SPO SPDO VCC2(SPN)
-
22
EFBL
CD-BP1200W/1250W
3
DISC_NO
CD SIGNAL
R94 10K
C71 C72
O/C
100P 0.01 100P 100P 100P 100P 100P 100P +B
WRQ RES
R71 R72 R73 R74 R75 R76 R77 R78
1K 1K 1K 1K 1K 1K 1K 1K
DRF RES WRQ INT DO DI CL CE +B
C73 C74 C75
R95 10K
1K
1K R67 VSS
C76 C77
R68
8
+B
V/vP CONT7 FSEQ
C78
DEFECT
CONT6
DEF
C80 0.1 VDD5V
L62 2.2µH C44 0.1 C45 100/10
INT
DO
C23 0.047
R12 680 R79 1.5M
7
PD01 R13 680 PD02 VVSS
EFMO
80 79 78 77 76 75 74 1
GENERAL
73 72 71 70 69 68 67 66 65
COMMAND INTERFACE
CE
CL
DI
C24 2.2/50
C25 0.1 C19 100/10
2 3 4 5 6 7 8
SLICE LEVEL CONTROL PLL VCEC
C22 100P
C21 0.1 R11 12K
C81 0.022 PCKIST VVDD R14 FR
FRAME SYNC DEFECT,PROTECT EFM DECODE
IC2 LC78641E SERVO/SIGNAL CONTROL
64
SUBCODE DECODE CRC
SBCK
63 PW 62 SBSY 61 SFSY 60 16M 59 DATA
1.2K HFL SLCIST
SERIAL OUT
R10 27K C20 0.1 R8 330 C17 0047
R80 1M
CLV CONTROL
58 DATACK 57 LRSY
ASDFIN ASDACK ASLRCK XVSS XOUT XIN XVDD RVDD RCHO +B
C38 10/16
12 11 10
XL1 16.9344MHz
R15 10K
C26 0.047
EFMIN C27 0.1
10
JITER DEFECT CONTROL
EXTERNAL AUDIO IN
SLCO
9
56 55 54 53
CLOCK GENERATOR
INTERPOLATION MUTE ATTENUATION DEEMPHASIS
C42 68P
JITTV 11 JITTC
12
SW
BH PH(RFENV) FE TE VREF ADAVDD C82 0.022 C41 100/10 C28 47/10 C29 0.1 ADAVSS
13 14 15 16
SW A/D AUTO ADJUST SERVO PROCESSEROR
52
R20 220
51 50
+B
DIGITAL FILTER
C34 0.022 R-CH
C43 C40 0.0015 0.0015
17 18
+ -
49 48
LPF
1BIT DAC
47 46 45
RVSS LVSS LCHO
R82 2.2K
R84 10K
1 2 3 4 5
AGND L-CH DGND +5V +B
PHREF 20
2
D93 DS1SS133 R43 220K
EFBL
BHREF 21 TBLO
GENERAL S/H D/A ERROR CORRECT AUDIO OUT
44
LVDD C39 10/16 +B
R81 2.2K C56 330/6.3
22
43 MUTER 42 MUTEL
EFLG R19 47
R83 10K
19
P22 1-B CNS601 FROM MAIN PWB
CNP11
TDO R44 1K
CONT1
CONT2
CONT3
CONT4
FDO 24
SPDO SLDO
CONT5
LASER
23
FSX
41 EMPH
+B
C83 0.022 +B
1.2K
R38 270
SPDO SLDO TDO FDO
1.2K
1K
1K
13
1 6
R39 470
DOUT
C2F VDD
PCK
R35 1K
25 26
FG(D_Vref)
27 28 29 30 31 32 33 34 35 36 37 38 39 40 TEST
C30 0.1 C31 100/10
9
CONSTANT VOLTAGE 3.3V 5V
R58 220
R40
R45
R46
R17
+B
+B
+B +B INT WRQ DRF CE +B DO DI
R16 10K
L61 0.82µH
Q1 KTC3203 Y 4V +B ZD61 DZ3.9BSB
1 2 3 4 5 6 7 8 9 10
CNP12
CDINT WRQ DRF CE DO DI CLK CD RES CLAMP SW GND
C64 0.47/6.3
+B
+B NG M+ NG MR21 470 D21 DS1SS133 R22 470 D22 DS1SS133 2 1V 3 0V
CL RES
P21 11-B CNS702 FROM DISPLAY PWB
C47 100/16
Q2 1 0V KRC102M
CNS4 O/C PDO SPN) GND(D) DISC_NO M+ MCNP4
BI4
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
+ -
SW1 OPEN/ CLOSE SW2 CLAMP SW3 DISC NUMBER M3 T/T UP/DOWN LOADING
M
T/T UP/DOWN MOTOR PWB-E
+B +B
· The numbers 1 to 13 are waveform numbers shown in page 34.
7 8 9 10 11 12
Figure 19 SCHEMATIC DIAGRAM (2/9) 19
CD-BP1200W/1250W
A
P15 P16 P13 P20 P14 P11 P10 P9 P8 P7 P6 F F
FL701 FL DISPLAY
P12
P19
P18
P17 1G AVref AVDD 2G
5G
6G
7G
8G
P5
P4
P3
P2
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
+B
C708 1/50
R743 33
C705 100/10
B
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
P18 P12 P19 P17 P7 P6 5G 6G 7G P5 P4 P3 P2
P1
80 P8
79 VLOAD 78 P9 77 P10 76 P11 75 P14 74 P20 73 P13 72 P16 71 P15 70 DIST0
P1
1
VDD
C
69 DIST1 68 DIST2 67 DIST3 66 N.C. 65 N.C. D714 1SS133 64 N.C. 63 N.C. 62 N.C. R742 1K 61 N.C. 60 SPN 59 DISTOUT/SW OUT
N.C.
IC701 IX0337AW SYSTEM MICROCOMPUTER
58 KARAOKE LATCH 57 MIC IN 56 FPB 52 51
CD CLAMP SW
T2 RUN
D
+B R737 R736 R735 R734 R733 R748 R749 R750 R751 R753 10K 10K 10K 10K 10K 1K 1K 1K 1K 1K
29 30
SPEANA1 SPEANA0
55 FPA
AC RLY_CONT
8G
M-BU
54 T2 PLAY SW_B 53 T1 PLAY SW_A
SPK_DET T1 RUN
TIMER LED
T_MOTOR
T_SOL_A
T_SOL_B
SMUTE
52 51
POWER
D701 1SS133
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34
N.C.
VDD
2.2K
2.2K
2.2K
2.2K
10K
1K
1K
1K
1K
1K
SYS STOP
REMOCON
NO USE
VSS
SP_RLY
R732
R792
R778
R730
R729
R728
R727
R726
R724
E
LED722
+B
+B
R756 68K
R757 68K
F
C711 10/16 C712 10/16 D704 1SS133
R758 10K
R759 10K R775 10K R776 10K R760 1K
4.9V 4.9V 0V
R722
R777 10K
0V
D705 1SS133
R761 1K
Q702 2SC3331 R763 47K
0V
Q703 2SC3331
0V
TAPE MECHANISM PWB-D
G
TAPE MOTOR
M
SOLENOID
+ 1 2 3 4 5 6 7 8 9 10 11 12 13
13 1
R762 47K FFC13 1 CNS703
0V 10V
1 2 3 4 5 6 8 9 10 11 13
T2 PLAY +5V T2 RUN +MTR SOL2 SOL1 0V T1 RUN N.C. T1 PLAY GND 10V
+B
Q704 KTA1271 Y
10V
R766 10K
Q705 KTA1271 Y
10V
10V 10V
R768 10K Q706 KTA1273 Y MOTOR DRIVER
7 N.C.
C710 47/25 D702 1SS133 D703 1SS133
R767 10K
0V
SOLENOID
12 N.C.
F_REC
13
H
DISPLAY PWB-A2
· NOTES ON SCHEMATIC DIAGRAM can be found on page 14.
1 2 3 4 5 6
Figure 20 SCHEMATIC DIAGRAM (3/9) 20
R721 1K
1G
CD-BP1200W/1250W
P12
P19
P18
P17
8G
1G
2G
3G
4G
9G
P1
F
F
21 22 23 24 25 26 27 28 29 30 31 32 33
Q701 KRC107 M 2
4.9V
R779 3.3(1/2W)
BI702
-25.4V CD INT
3
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
R744 1 -25.6V1K R745 100K
C707 1/50
WRQ(DSP) DRF CD CE CD DO CD DI CD CLK
P19 12-F TO CD SERVO PWB
CNP12
92 93 94 95 96 97 98 99 100
5G 6G 7G 8G 1G 2G 3G 4G 9G
C701 0.022 1 2 3 N.C. R702 4 R703 5 R704 6 R705 7 R706 8 R707 9 R708 10 XL701 4.1943MHz C704 18P 1K 1K 1K 1K 1K 1K 1K 1K C703 15P
C702 220/10
RES OUT CLAMP SW CD_GND
1
VDD
-20dBATT S-BUSY T-BIAS T_T1/T2 REC/PLAY RES OUT DRF WRQ RESET
CNS702
1 TUN SM 2 3 4 5 6 7 8
CE DO DI CLK T_BIAS T_T1/T2 REC/PLAY M_GND
1
FFC21
X2 11 X1 12 VPP/IC 13 XT2
14 R709
1 AW EM MPUTER
CD INT 15 VDD
16 R710 R711 R712 R713 R714 R715 R716 R717 1K 1K 1K 1K 1K 1K 1K 1K +B
CD CLK 17 CD DI CD DO CD CE
9
18 19 20
10 M_10V 11 SMUTE 12 VF1 13
-VP
P23 12-D CNP701 TO MAIN PWB
CE 21 CLK
22
DI 23 DO 24
14 VF2 15 AC_RLY CONT 16 UN_SW 5V 17 D_GND
29 30
REMOCON
SPEANA1 SPEANA0
AVSS 25 M-BUSY/TUN SM SPEANA3
26 27 28 29 30
R718
1K
R769 10K
18 SW_5V 19
POWER
SYS STOP
SPEANA2
KEY 0 KEY 1 KEY 2 AVDD AVref
20 SPAN 21 SW OUT CNS701 +B +B 21
NO USE
39 38 37 36 35 34 33 32 31
N.C.
SP_RLY
10K
1K
R721 1K
R719 1K
R720 1K
R724
R722
R725 1K
R755 4.7K
+B
+B R772 4.7K D710 1SS133 D711 1SS133 RX701 REMOTE SENSOR R773 100
+B L701 100µH D707 1SS133 R770 47K 2
9.7V
5V BACK UP
D708 1SS133 Q707 KRC102 M 3
0V
IC704 KIA7042AP
+B
3
C715 3.3/50 C716 0.022 R771 100K
1 2
RESET C717 10/50
R775 10K R776 10K C713 0.1/50
1 0V C714 0.01
D709 1SS133
1
2
3
C718 0.022 C719 47/16
R777 10K
RD13 680
RD14 820
RD15 1K
RD16 1.5K
RD17 2.2K
RD18 2.7K
RD19 3.9K
RD20 5.6K
RD21 10K
RD22 15K
RD23 33K
RD24 100K SW725 TUNER (BAND)
SW714 CD
SW715 TAPE
SW716 SW717 TUNING MEMORY/ SET /TIME DOWN
SW719 SW718 REWIND FAST FORWARD
SW720 PLAY/ REPEAT
SW721 STOP
SW723 REC/ PAUSE
SW724 TUNING /TIME UP
RD25 680
RD10 820
RD11 1K SW712 VOLUME UP
RD12 1.5K
SW713 VOLUME DOWN
SW711 EQUALIZER/X-BASS/ DEMO
RD01 680
RD02 820 SW702 CLOCK
RD03 1K
RD04 1.5K
RD05 2.2K
RD06 2.7K
RD07 3.9K
RD08 56K
RD26 6.8K
RD09 100K SW709 DISC SKIP SW710 OPEN/ CLOSE
SW703 TIMER /SLEEP
SW701 ON/STAND-BY
7
8
9
10
11
12
Figure 21 SCHEMATIC DIAGRAM (4/9) 21
CD-BP1200W/1250W
A
+B +B
C605 0.022 CNS601 P19 12-D CNP11 TO CD SERVO PWB
+5v
3 4
VSS LOUT LBASS LTRE LIN LSEL0 L4 L3
+B
B
BI601 R601 330 R609 10K Q601 2SC3331
0V
R615 3.9K
C609 0.1(ML)
CCB INTERFACE
+ -
+ -
C611 C613 C617 C629
0.1(ML) 0.0027 1/50 1/50
N.C.
5
+ -
6 7 8 9
+ -
0V
R603 1.8K
0V
C601 0.001
R607 2.2K C623 C602 0.001 R608 2.2K R617 3.3K C625 C627
+ -
AUX DECK TUN CD
1/50 1/50 1/50
10
Q602 2SC3331
15
L GND (A_GND)
R604 1.8K R602 330
0V 0V 0V
11 L2 12
L1
C
TO POWER SECTION P24 1-G
16 17 18 19
R +5V +B GND (CD_GND)
R610 10K C603 22/25 R625 22K
Q601,Q602 : SYSTEM MUTE
IC601 LC75341 AUDIO PROCESSOR
+B
D
R157 100
FM SIGNAL PLAYBACK SIGNAL RECORD SIGNAL CD SIGNAL
9.3V
C101 0.047 R101 10K
9.6V
R102 10K R103 4.7K
Q102 KRC104 M SWITCHING
0V 2 0V 1 0V 1 3
3.4V
C108 100/16
3 0V 3.4V
E
9.3V
TAPE 1 PLAYBACK HEAD R-CH
CHASSIS
R120 3.9K C122 1/50
CNP101
R118 100K
6.8K
L-CH
C126 270P
C103 560P Q104 2SC1845 F SWITCHING M_GND ERASE TAPE2_R2 A_GND TAPE2_R1 R111 4.7K TAPE2_L1 TAPE2_L2
0V 0V
TAPE 2 RECORD/ PLAYBACK/ ERACE HEAD
R106 2.2K
0.7V
R128
R105 1K R110 47K
0V 0V
C106 560P Q108 2SC3331 SWITCHING
R114 1K C112 330P 24
R L
C114 330P
N.C.
R126
C128 22/25 17 16 15
Nor/CrO2
F
ERASE HEAD
R-CH L-CH
CNP102
R119 100K R121 3.9K
C127 270P
R133 100
1 2 3 4 5 6 7
1 2 3 4 5 6 7
C104 180P
0V
0V
0.7V 3.3K
R108 R112 4.7K
23
22
- 112K + Hich=T1 + - 112K
21
20
19
18
Q106 2SC1845 F SWITCHING
C113 330P Q107 2SC1845 F SWITCHING
0.7V
1
2
C115 330P
3
4
5
N.C.
6
C139 3.3/50
7
8
C129 22/25
9
R115 1K
0V
C119 0.033 C121 560P
0V
Q109 2SC3331 SWITCHING
0V
C131 0.022
C105 180P
R109 3.3K
0.7V
0V
C107 560P C117 100/25 R117 56 R138 15K
C137 0.022 C123 R123 1/50 5.6K C147 0.001
R127 6.8K
C135 47/25
R113 47K
G
0V
R107 2.2K
Q105 2SC1845 F SWITCHING
R125 33K
H
· NOTES ON SCHEMATIC DIAGRAM can be found on page 14.
1 2 3 4 5 6
Figure 22 SCHEMATIC DIAGRAM (5/9) 22
C133 0.0033
R129 3.9K
R131 1.5K
ALC
10
N.C.
R135 10K
ALC
0V
IC101 AN7345K
56K + Hich=CHROME + 56K
C136
R122 5.6K
C130 0.022 C132 0.0033 C134 47/25
1 2 3
1 A_GND 2 TAPE1_L 3
R130 3.9K
68K
R132 1.5K
TAPE1_R
R104 1K
R134 100
R136 10K
C102 560P
Q101 KTA1266 GR SWITCHING
Q103 KRC104 M R137 SWITCHING 15K
0V 2
C146 0.001 R116 56 C116 100/25 R124 C118 33K 0.033 C120 560P
+ -
1 2 3 4 5
1 2 3 4 5
R-CH A_GND L-CH CD_GND
C604 100/25 C607 10/50
1 2
DI CE
CLK VDD VREF
24 23 22
+B
C606 22/50 C608 10/50 ROUT C610 21 0.1(ML) C612 0.1(ML) RBASS 20
RTRE RIN RSEL0
19 18 17
C614 C618 C630
0.0027 1/50 1/50
+ + -
R4 R3 R2 R1
16 N.C. 15 14 13 C624 C626 C628 1/50 1/50 1/50 R618 3.3K
R142 220K Q110 2SC3331 MUTING
0.7V 0V
R141 10K Q 2S MU
R140 10K
CD-BP1200W/1250W
MAIN PWB-A1(1/3)
+B
2/50 0/50 R616 3.9K (ML) 0027 50 50 A_10V CE DI 50 50 50 R618 3.3K CLK TUN_R TUN_L DO GND(D_GND) GND(A_GND)
20 21 22 23 24 25 26
TO TUNER SECTION P26 1-G
27 28
+B
CNP701 CE DO DI CLK T_BIAS T_T1/T2 1 2 3 4 5 6 7 8
1
+B
REC_R
REC_L
REC/PLAY M_GND
+B
M_10V SMUTE VF1 -VP VF2
9
10 11 12 13 14 15 16 17 18 19 20 21 P21 11-D CNS701 TO DISPLAY PWB
R143 220K 1 G 140 0K R141 10K 0.7V Q111 2SC3331 MUTING
0V +B 0V +B
UN_SW 5V D_GND SW_5V POWER SPAN SW OUT
R136 10K
C138 220/10
+B
50/9 kHz
+B N.C.
21 FFC21
0.0033 C134 47/25
C136 22/25
100/10 kHz
R139 180
+B
SW601 SPAN SELECTOR R144 47K R145 4.7K
0V 11.6V 2
16
K
15
Nor/CrO2
14
RIPPLE
13
Vcc
IC101 PLAYBACK AND RECORD/ PLAYBACK AMP.
C109 0.001
11.7V 11.6V
ALC
GND
ALC
OME
K
9
Q112 KTA1266 GR 0V SWITCHING L103 100µH R146 82(1/2W) R147 47K
10
N.C.
11
12
1
Q113 KRC104 M BIAS
0V 3 +B +B
0.0033
C141 0.039 (ML)
L104 330µH
C142 47/25
VF1 -VP VF2
C148 0.047
C140 0.0082(P.P)
1
2 3 4
M_10V
A_10V
R149 4.7
5
6 7
SW_5V
C145 0.001
0V
UN_SW_5V
R135 10K
R148 22K
+B
GND (D_GND)
0V
9
TO POWER SECTION P24 1-G
7
8
9
10
POWER GND (M_GND)
11 12
0V
Q114 KTC3203 Y BIAS OSC
C135 47/25
11
12
Figure 23 SCHEMATIC DIAGRAM (6/9) 23
CD-BP1200W/1250W
A
CH1 THERMAL OVER VOL. PROTECTOR
PRE-GND
IC901 LA4282 POWER AMP.
POWER GND1 OUT1 Vcc
CH2
OUT2 NF2 IN2
NF1
1
IN1
RIPPLE FILTER
MUTE CIRCUIT
2
3
4
5
C918 220P
6
7
8
POWER GND2
9
10
C919 10/50
11
12
C905 0.022
C906 47/25
R905 120
R907 1K C909 0.082 (ML)
B
C907 100/25
R906 1K C908 0.082 (ML)
R908 120 C914 470/25 C910 100/25
R909 56K C911 0.022 C912 0.1(ML) C916 0.1(ML)
C915 470/25 C913 0.1 (ML)
C903 470P
R911 270 (1/2W)
C917 0.1 (ML) R913 4.7
C904 470P
R910 270 (1/2W)
R912 4.7
C
0V 0V
1 3
0V
1 2
0V
Q902 KRC102 M
0V
3
0V
2
Q901 KRC102 M
R914 22K
R915 820
+B
+B
+B
D
C946 2200/35
C933 68P
+B
E
C934 0.047 (ML)
R922 22K
C935 22/25
IC905 KTC2026 SILICON
R923 33
+B
IC902 KIA7810AP VOLTAG REGULATOR
+B
3 2 C939 0.1(ML)
1
+B
C947 3300/25
R925 22K
C938 47/25
C940 0.1(ML)
F
16
GND(A_GND)
C 1 R928 12K
15
L +B R
3 2
1
IC904 KIA7805AP VOLTAG REGULATOR
17
R929 220 D918 1SS133 C945 0.1(ML)
11
POWER
R926 10K D902 1N4004S
C943 47/25
G
TO MAIN/ TUNER SECTION P22 1-C P23 10-G P26 1-G
C944 0.022
18 19 1 7 9 2 3 4 5 6 12
+5V(CD +B) GND(CD_GND) A_10V SW_5V UN_SW_5V VF1 -VP VF2 M_10V GND(D_GND) GND(M_GND) +B
+B
H
· NOTES ON SCHEMATIC DIAGRAM can be found on page 14.
1 2 3 4 5 6
Figure 24 SCHEMATIC DIAGRAM (7/9) 24
CD-BP1200W/1250W
MAIN PWB-A1(2/3)
FM SIGNAL
HEADPHONES PWB-A3
FW901
1 1
L OUT
R OUT 5 5
R916 330
R917 330
JK901 HEADPHONES
CD-BP1250W ONLY
+ +
SP_L Ch SP_R Ch
SURROUND SPEAKER C960 22/50 C961 22/50
+ +
SP_L Ch_GND SP_R Ch_GND SO901 SPEAKER TERMINAL
SP_L Ch SP_R Ch
+B
FRONT SPEAKER
C946 2200/35
SP_L Ch_GND SP_R Ch_GND
F901 T2.5A L 250V D907 RL203F
+B
D908 RL203F
C950 0.047 (ML) C951 0.047 (ML)
CNP801
D909 RL203F
D910 RL203F
F902 T1.6A L 250V D912 1N4004S D914 1N4004S
C952 0.047 (ML)
SO801 VOLTAGE SELECTOR 220V
D911 1N4004S
1
1
5 4 3 2 1
5 4 230-240V 3 2 1
127V 110V
2 3 4 5
C959 100/50 D916 1N4004S
2 3 4 5
C947 3300/25
D913 1N4004S
R928 12K
ZD903 MTZJ6.2A
C955 47/50
-29.2V -28.6V -37.7V Q904 KTA1266 GR
C958 100/50
C954 100/50
ZD902 DZ300BSB
C956 47/50
D915 1N4004S
C953 0.047 (ML)
6
CNP901
6
R927 2.2K
R929 220
R930 220
C957 47/50
D917 1N4004S
TF801
SO902 AC INPUT SOCKET AC 110/127/ 220/230-240V 50/60Hz
PT801 POWER TRANSFORMER
7
8
9
10
11
12
Figure 25 SCHEMATIC DIAGRAM (8/9) 25
CD-BP1200W/1250W
FM SIGNAL
AM LOOP ANTENNA SO302 FM ANTENNA TERMINAL 2 2 1 1 CNP302 BF301 C303 10P (CH) C304 0.01
D302 1SS133
A
AM SIGNAL
MAIN PWB-A1(3/3)
C314 0.0047 C301 0.001 C315 0.0047 D305 L312 C316 0.022 R311 100K R313 33K 1SS133 C308 4.7P FM RF C309 0.001 VD302 SVC211C C310 15P (CH) T301
C311 18P
1 2 3
B.P.F
R314 22
B
C317 0.001
C305 4.7P (CH)
1 2 3 4 5 6
D301 1SS133 C323 0.022 AM BAND COVERAGE fL T306
AM ANTENNA
C312 0.022 R327 33
0V
0.8V 2V
Q302 KTC3194 Y
R322 680
FM IF T302
C324 3.9P(UJ)
9
C306 0.022 IC301 TA7358AP FM FRONT END
C334 27P (UJ)
C335 560P
T303
C
D303 1SS133 D304 1SS133 C302 0.001
C318 100P
2 3 CF302
1
VD303 SVC211C C313 22P (CH) R309 10K
C307 10/16
R323 68K
C330 15P (UJ) VD301 SVC348S C332 0.022 C331 0.047
TP301
R316 4.7K
R336 10K
+B
C320 0.022
D
C382 15P (CH) R375 820 R374 1K R373 1K
X352 C381 4.5 MHz 12P (CH)
R382 150 C397 0.022 R381 10K
C342 0.022 C351 0.022 C352 10/16 C394 47/16 C350 0.022 T351 AM IF R351 5.6K R358 3.9K R365 10K C362 C361 3.3/50 0.022
1 2 3 4 5 6
R372 1K R378 1K
X OUT VSS N.C. AOUT CE AIN DI CL DO PD VDD FM IN AM IN N.C.
X IN
22 21 20 19 18 17 16 15 14
C393 1/50
1 2 3
FM IF IN AM MIX OUT REG
R380 1.5K C392 C380 0.001 10/16 R379 2.2K C385 0.01 L351 100µH R377 47K C386 330P
+B
AM OSC OUT AM OSC IN FM AFC AM RF IN
24 23 22 21
C363 0.022 C364 10/16 C365 0.022 C366 0.001 R350 2.7K
7 FM/AM 8 IF CONT 9 10 11
FM/AM MO/ST ST IND
C387 0.022
2 CF352 C353 0.022 R393 1K C354 CF351 0.022
1 3
R352 1K
4 5 6 7
E
SD 13 IF IN 12
VSM 20 AM IF IN AM LOW 19 CUT FM/AM 18 GND OUT SD C367 1/50
R376 1K R386 22K R360 4.7K
IC302 LC72131 PULL(TUNER)
+B
STEREO FM DET MPX VCO X351 456KHz C368 1/50 R356 1K C369 27P(UJ) C374 0.015 C373 0.015 C371 1/50 R361 R364 680 6.8K R363 6.8K TP302 R357 470K
R395 47K
+B
C399 0.022 C398 100/10 C356 0.001
R353 270
8 9
17 16 15 14 13
VCC MPX IN
C357 2.2/50
10 IF OUT 11 PHASE
F
+B
R387 5.6K R359 1.8K
Q360 KTA1266 GR SWICHING
R388 3.9K
C355 22P
+B
R-CH OUT
R355 3.3K C358 1/50
12
PHASE (FM/AM)
L-CH OUT MO/ST
R384 5.6K
+B
R385 10V 5.6K C391 47/16
9.3V 10V
L352 100µH
+B
C370 1/50
IC303 LA1832S FM IF DET/ FM MPX/AM IF
C372 1/50 R362 680
20
A_10V
+B
R383 5.6K
A_GND +5V TUN_R TUN_L DI CE DO CLK GND (D_GND)
C395 0.022
C396 100/10
+B
G
TO MAIN/ POWER SECTION P23 11-C P24 1-G
28 18 24 25 22 21 26 23 27
H
· NOTES ON SCHEMATIC DIAGRAM can be found on page 14.
1 2 3 4 5 6
Figure 26 SCHEMATIC DIAGRAM (9/9) 26
D306 1SS133
AM TRACKING fL
R325 47K
FM OSC R302 10
7 8
AM OSC
CD-BP1200W/1250W
VOLTAGE
IC1 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 VOLTAGE
1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 0V 2.6V 0V 0V 0V 3.3V 1.6V 1.6V 1.6V 0V 0V 1.6V 1.6V 1.6V 1.6V 1.6V 0V 1.6V 0V 0V 0V 1.6V 1.6V 3.3V
IC2 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 VOLTAGE
0.7V 0V 0V 0V 3.3V 2.4V 0V 0V 1.6V 0V 4.7V 1.7V 0V 1.6V 1.6V 1.6V 1.6V 3.3V 0V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 0V 0V 2.1V 2.1V 0V 3.3V 3.5V 3.3V 3.3V 3.3V 1.6V 1.6V 0V 0V 3.3V 3.3V 3.0V 1.5V 0V 0V 1.5V 3.0V 3.3V 1.8V 3.0V 0V 0V 0V 0V 1.7V 3.3V 0V 3.0V 1.6V 0V 2.4V 0V 0V 0V 0V 4.8V 4.9V 4.9V 4.6V 0V 4.9V 0V 0V 0V 3.2V 0V 0V 3.4V
IC101 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 VOLTAGE
0V 0V 0.55V 2.16V 0V 1.25V 0V 0.58V 3.71V 3.55V 0V 0V 7.42V 4.37V 0V 3.67V 0.38V 0V 0V 0V 2.18V 0.55V 0V 0V
IC901 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 VOLTAGE
0V 0V 16.27V 0V 0V 0V 16.72V 0V 0V 34.2V 16.6V 0V
IC902 PIN NO. 1 2 3 VOLTAGE
19.12V 0V 10.04V
IC904 PIN NO. 1 2 3 VOLTAGE
19.12V 0.64V 5.64V
IC301 PIN NO. 1 2 3 4 5 6 7 8 9 VOLTAGE
0.8V (0V) 1.5V (0V) 3.6V (0.4V) 1.5V (0V) 0V (0V) 3.6V (0.4V) 2.8V (0.2V) 3.5V (0.3V) 3.6V (0.3V)
Q903 PIN NO. 1 2 3 VOLTAGE
10.04V 19.05V 9.57V
IC3 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 VOLTAGE
1.6V 1.6V 1.8V 2.1V 2.1V 2.1V 2.1V 0V 0V 0V 0V 0V 0V 0V 2.1V 2.1V 1.6V 4.9V 3.5V 1.6V 0V 0V 4.9V 4.9V 1.6V 2.1V 2.1V 1.9V 0V 0V 0V 0V 0V 0V 0V 4.2V 0V 2.1V 2.1V 4.9V 2.1V 2.1V
IC704 PIN NO. 1 2 3 VOLTAGE
4.9V 0V 4.9V
IC302 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 VOLTAGE
2.15V 0V 0V 0V 0V 4.83V 9.87V 4.4V 0V 0V 4.64V 2.27V 4.65V 0V 2.13V 0V 4.86V 0.73V 0.73V 6.3V 0V 2.33V
IC601 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 VOLTAGE
0V 0V 0V 4.96V 4.96V 4.96V 4.96V 4.89V 4.78V 4.78V 4.78V 4.78V 4.78V 4.78V 4.78V 4.78V 5.1V 5.5V 5.0V 4.66V 5.03V 4.97V 10.0V 0V
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
IC701 PIN VOLTAGE NO. 4.78V 51 0V 52 5.0V 53 0V 54 4.69V 55 4.74V 56 4.76V 57 0V 58 4.85V 59 4.30V 60 2.25V 61 1.16V 62 0V 63 0V 64 4.85V 65 4.78V 66 4.67V 67 0V 68 4.69V 69 0V 70 0V 71 0V 72 0V 73 4.82V 74 0V 75 0.3V 76 0V 77 0V 78 0V 79 0V 80 4.81V 81 4.81V 82 4.81V 83 4.9V 84 5.0V 85 4.9V 86 0V 87 0V 88 5.0V 89 0V 90 1.7V 91 9.45V 92 9.45V 93 9.45V 94 3.8V 95 4.89V 96 0V 97 4.89V 98 4.78V 99 4.78V 100
IC303 VOLTAGE
4.29V 0V 4.81V 4.81V 4.81V 4.81V 0V 0V 27.8V 27.8V 0V 0V 0V 0V 0V 0V 27.7V 27.7V 27.1V 28.2V 21.7V 18.6V 12.9V 24.4V 25.9V 15.7V 22.2V 22.3V 27.8V 18.6V 12.9V 24.4V 24.4V 27.1V 27.1V 24.4V 24.4V 27.1V 27.1V 24.4V 27.1V 24.4V 27.1V 24.4V 24.4V 24.4V 24.4V 24.4V 24.4V 24.4V
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
VOLTAGE
2.12V 4.78V 2.12V 2.11V 0V 4.65V 4.65V 3.02V 4.78V 4.08V 1.63V 1.13V 2.08V 1.31V 1.29V 2.07V 0V 1.43V 1.99V 1.44V 2.08V 2.08V 4.78V 3.35V
27
CD-BP1200W/1250W
D304
D303
X352
R387
C302
R374 R372 R373 R378
C396
C386
C382
1 2 3 4 5 6 7 8 9 10 11
R359 R360
C301
R386 C391
C381
R379
IC302 C387
R376
C395 R604 C627
R617
C397
22 21 20 19 18 17 16 15 14 13 12
C394
C392 C380
R380 C320
R384
FM 75OHMS
L351
R375 C318
R377
C385
R393
C307
SO302 GND
C306
R381 TP301
R322 R325
Q302
C324
C629
9
B C E
R314 IC301
R615
B
8
C305
CNP302 2 1
C304
7 6 5 4 3 2
C312 CF302 R309 VD303
C315
R302 C310 T302
R327 C311
R625
CF352 3 2 1
T351
C398
C393
R382 T301
B C E
C603
Q360
R385 R383
C625 R395 D306 L352 C623 C617
C370 CF351 C356
R353 C357
C613 C611 C609
C313 C352C351 C350 R352
R351
AM LOOP ANTENNA
2 1 D301 D302
C353 C354 IC303
R355 C358 C355
L312
C314
BF301
1 2 3
1
1 2 3
R311
1 2 3 4 5 6 7 8 9 10 11 12
VD302
C317
C
SW601 SPAN SELECTOR 50/9 kHz C323
R365
C303 T303
D305
C308
C309
C399 C366 X351 C371 TP302
C368
24 23 22 21 20 19 18 17 16 15 14 13
R358
R313
R316
R336
C367
C369
C342
C334 C362
R363 R361 R364
R362
C316
C373
100/10 kHz
VD301
C330 C331
R323
C332
C361
R350
C363
R357 R356
C364
C374
C365
C372
C335
T306
D
FRONT SPEAKER
L-CH L-CH GND
CD-BP1250W ONLY
C960
R-CH SO901 SPEAKER TERMINAL R-CH GND
C961
L-CH
E
L-CH GND SURROUND SPEAKER R-CH R-CH GND CD-BP1250W ONLY 1 2 CNP801
3 110V 127V 4 5 SW801 VOLTAGE SELECTOR
F
220V 230-240V POWER TRANSFORMER P33 8-F
G
SO902 AC INPUT SOCKET AC110/127/220/ 230-240V 50/60Hz
HEADPHONES PWB-A3
R917
1 FW902
R916
JK901 HEADPHONES
5
H
1
2
3
4
5
6
Figure 28 WIRING SIDE OF P.W.BOARD (1/6) 28
R603
A
R609
R388
CD-BP1200W/1250W
Q101 R144 Q112 E C B C142 Q114 R146 C141 L104 R149 C140 Q104 Q106 B C E B C E
Q105
R607 R609 R603
R608
Q601 B C E
C601 C602 R618 R610 C624 C618 C626
L103 R601
B C E Q602
C106 R110 Q108
C628
CNP101
C625 C623 617
12 11 10 9 8 7 6 5 4 3 2 1 13 14 15 16 17 18 19 20 21 22 23 24
R602 R616 C630 C614 BI601 1
B C E R147 R148 R108 R137 R106 R107 R109
C148
C104
C612
C610
C608
R114
C107
Q109 R115 C117
5 C604
B C E B C E C105
Q107
13 1 09
C606 C605 C118
R104 R119 R105 R117 C121 R116 R121 C119 C115
24 23 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12
R157
1 2 3 4 5 6 7
C607
R138
CNS102
R113
R112
C101 Q102 R102 1 2 3 C108 R103 1 2 3 Q103
R111
R101
1 2 3
R145
C109
B C E
(229)
(230)
Q113
B C E
B C E C102
3 2 1
C103 TAPE 1 PLAYBACK HEAD P33 10-E
IC101
CNP701
20 18 16 14 12 10 8 6 4 2 21 19 17 15 13 11 9 7 5 3 1
C116
R122
R126 C126 R128 R130
C139 C127 R127 R131 C129 R133 C135
R135
C120
R120
C147
C122
C146
C132
R124
R140
C134
R134
ZD903 C956
R928
R927
ZD902
C951
C934 Q902 Q901
1 2 3 1 2 3 C903
C907
C914
C915
D918
R922 R923 C933
C909 C906 R915 E C B
R908
C943 C944 R926
1 2 3
C939 C938
C935
C908 R906
R907 C918
W902
R905
C911
IC601
C112
C113
C137
R118 C114 22 21
C123 R123
RD WH GR WH GR
CNS601 1 2 CNP11 3 4 TO CD SERVO PWB P32 4-A 5
R143
C128
C145 C136
C133
C143 R125 R129 Q111
B C E
TAPE 2 ERASE/RECORD/ PLAYBACK HEAD P33 11-E
C131
R141
R139 Q110 E C B C130 R142
C138 R132 R136 CNS701
C955
R930 R929 B C E Q904 C959
5 FW901A
1 F901 T2.5A L 250V
FFC21
TO DISPLAY PWB P31 8-G
C954 C957
C958 C947
F902 T1.6A L 250V
D917 D916 D915
6 5 4 3 2 1 CNP901 C952 D911 D912 D913 D914 D902 C953 R914 C904 C910 C905 C919 C946 R911 R910 C950
POWER TRANSFORMER P33 8-C D909 D907 D910 D908 C916 R912 C912 C913 R913 C917
C945
C940
R925
1 2 3
R909
IC904
IC902
IC905
1 2 3 4 5 6 7 8 9 10 11 IC901
MAIN PWB-A1
7
8
9
10
11
12
Figure 29 WIRING SIDE OF P.W.BOARD (2/6) 29
CD-BP1200W/1250W
A
DISPLAY PWB-A2
Q701
B
3 2 1
R745
RX701
33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18
FL701
C719 SW711 EQUALIZER /X-BASS/ DEMO RD25 RD10 RD11
C718 C707
C702
3 2 1
C
SW712 VOLUME UP
R744
100 1 R702
R773
R724
R710
R703
R779
R707 R706 R705 R709
C701
XL701
R711 R712 R713
R704
RD09
D
B C E Q705 B C E B C E
R768
SW710 OPEN/CLOSE R718 RD07 RD06
Q704 Q706 RD08 RD22 SW713 VOLUME DOWN RD21 RD26
RD12 R766
R767
RD17
E
SW719 FAST FORWARD
RD18
SW723 REC/ PAUSE
C710
F
SW724 TUNING /TIME UP RD23 1 SW716 TUNING /TIME DOWN
CNS703 2 4 6 8 10 12 1 3 5 7 9 11 13
R714
2 4 6 8 1 3 5 7 SW720 PLAY/ REPEAT
RD20 13 FFC13 TO TAPE MECHANISM PWB P33 9-A
G
H
1
2
3
4
5
RD19
6
Figure 30 WIRING SIDE OF P.W.BOARD (3/6) 30
C703
C704
R708
CD-BP1200W/1250W
TO CD SERVO PWB P32 5-A CNP12
1 2 3 4 5 6 7 8 9 10 RD WH GR WH GR WH GR WH GR WH
CNS702
1 9 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3
01
BI702
2 1
R791 C705
10
LED722 C715 SW701 ON/STAND-BY R770 D707 RD01 SW703 RD02 SW702 CLOCK RD03
C717
81 85 0 90 95
80 R743 R742 D701 75 70 D714 R784 R748
C708
D708 C713 C716 D709 C714 R771
R749
65 1 5 IC701 60 55 10 45 15 40 20 XL701 25 35 C704 30 31
51 R733 R734 R735 R736 R737 50
B C E
R759
R758
R762
C712 R761 R772 E C B Q702 C711 1 2 3 Q707 R792
R751 R750
Q703 R732
1 2 3
IC704 R760
R730
R778
R756 R757
R763
SW714 CD D704 D705 L701 D711
R722 RD05 R726 R775 R727 R728 R729 R721 R720 R719 R776 R777 SW717 MEMORY/SET RD14 D703 D702 RD24 R725 RD16 RD15 SW725 TUNER (BAND)
RD04 RD13 SW715 TAPE
SW709 DISK SKIP
R715 R716
R717
RD
R769 CNS701 6 8 10 12 14 16 18 20 5 7 9 11 13 15 17 19 21 SW721 STOP
1
21 FFC21 CNP701 TO MAIN PWB P29 11-D
7
8
R755
SW718 REWIND
9
10
11
12
Figure 31 WIRING SIDE OF P.W.BOARD (4/6) 31
D710
CD-BP1200W/1250W
P29 11-C TO MAIN PWB P31 10-A TO DISPLAY PWB
CD SERVO PWB-B
A
C52 R47 C53 8 7 6 5 4 3 2 1 E C B Q3
CNP2 C7
5
C51
CNS601
C83 1 2 3 4 5 CNP11
R7 R42
CNS702
C45
C44
1 5
30
C18 C64
R58
IC1
25 20 16
R4
R5 R6
C14
ZD61
Q1
B
10
C17
C13
R3 R8
L62
C21 R13
C71 C78 C73 C74 C75 C76 C77 C72
C8
C55
B C E
R19
R71 R78 R73 R74 R75 R76 R77 R72
R25
C11 C12
1 2 3 4 5 6 7 8 9 10 CNP12
13 4
C
R50 7 6 5 4 3 2 1 CNP1
R80
R79
R52 R53 R51 R54
D93
C27
C42
C26
R15
C19 C25 R11 C81
C23
R12
C6
C20 C22
R14
15 C54
R10
C24 L61 R67 R68 1 80
C80
8 7 3 12 11 10
R55 R56
C29 C41
C28
C82
R43
5 10 15 24 25 20 30 35 45
75 70 60 55 50
C34
2
C47
R44 R35 R39 1
C46
IC2
65 64
42 5 10 40 35
R38 D21 D22 1 2 3 Q2 R17 R16
R21 R40
R20 XL1
IC3
20 21
R48
C31
C30
25 22 C50
R46
C38
R82 C40 R84
D
C49
15
30
R22
R45
40 41
R95 R94
C56 CNP4 C39
R81 C43 R83
9
CNP3 6 5 4 3 2 1
6 5 4 3 2 1
E
1
6
PICKUP UNIT(306)
CNS3A
654 321
WH GR WH GR WH RD
654 321
CNS3B
F
CNS1A
1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 RD WH BL WH BL WH BL RD WH GY WH GY WH GY WH
CNS1B
1 2 3 4 5 6 7 1 2 3 4 5 6 7 8
7 8
1 1
G
SW4 PICKUP IN
CNS2A
CNS2B
M1 SPINDLE MOTOR
CD MOTOR PWB-C
H
· The numbers 1 to 13 are waveform numbers shown in page 34.
1 2 3 4 5 6
Figure 32 WIRING SIDE OF P.W.BOARD (5/6) 32
M2 SLED MOTOR
654 321 CNP3A
+ +
-
CD-BP1200W/1250W
P30 5-G TO DISPLAY PWB CNS703 FFC13
1 13
TAPE MECHANISM ASSEMBLY
TAPE MECHANISM PWB-D
1 3 5 7 9 11 13 2 4 6 8 10 12
1
4
B A + -
TAPE MOTOR SOLENOID TAPE 2
SOLENOID
TAPE 1 PLAYBACK HEAD
RECORD/PLAYBACK HEAD ERASE HEAD
WH BK YL WH
P29 11-E TO MAIN PWB CNP901
WH BK PK
1 2 3 4 5 6 YL YL BR BR WH WH
GR
GR
GR
PT801 POWER TRANSFORMER
WH BK PK
3 2 1
CNP101 P29 11-B TO MAIN PWB
RD OR BR YL BL
54321
CNP801 P28 5-G TO MAIN PWB
6 5 4 3 2 1 WH BK WH BK WH RD
CNS4
M3 T/T UP/DOWN MOTOR
BL YL WH BK RD WH BK
1 2 34 5 67
CNP102 P29 11-C TO MAIN PWB
COLOR TABLE BR BROWN RED ORANGE YELLOW GREEN BLUE VIOLET GRAY WHITE BLACK PINK
T/T UP/DOWN MOTOR PWB-E
RD( R) OR YL GR
6 BI4
1
+
SW1 OPEN/ CLOSE
BL VL GY WH( W) BK PK
SW3 DISC NUMBER
SW2 CLAMP
7
8
9
10
11
12
Figure 33 WIRING SIDE OF P.W.BOARD (6/6) 33
RD
BL
CD-BP1200W/1250W
WAVEFORMS OF CD CIRCUIT
Stopped CH1=500mV DC 10:1
T
CH3=500mV DC 10:1
500ms/div (500ms/div) NORM:20kS/s
Stopped CH1=500mV DC 10:1
PDO1
CH3=1V DC 10:1
1999/04/05 17:33:17 CH4=1V 500ms/div (500ms/div) DC 10:1 NORM:20kS/s
1
IC2 24
FDO
1
7
IC2 1
3
4
8
TDO
IC2 2
T
PDO2
2
IC2 23
3
CH1 v/DIV 500mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000V CH2 : 0.0V CH3 : 0.000V CH4 : 0.00V =Record Length= Main : 100K Zoom : 2K =Trigger= Mode : AUTO Type : EDGE CH1 Delay : 0.0ns Hold off : 0.2µs
1
IC2 24
FDO
1
CH1 v/DIV 500mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000V CH2 : 0.0V CH3 : 0.00V CH4 : 0.00V =Record Length= Main : 100K Zoom : 2K =Trigger= Mode : AUTO Type : EDGE CH2 Delay : 0.0ns Hold off : 0.2µs
Stopped CH1=500mV DC 10:1
CH2=10V DC 10:1
CH3=1V DC 10:1
500ms/div (500ms/div) NORM:20kS/s
Stopped CH1=2V DC 10:1
T
1999/04/07 09:25:28 500ns/div (500ns/div) NORM:200MS/s
1 3 4
IC2 24
1
FDO
T
IC2 72
T 2
DRF
9
IC2 37
1
DOUT
IC1 18 ,
3
TE
IC2 16
CH Position To -3div -1div 0div +1div +3div =Filter= =Offset= =Record Length= Smoothing : ON CH1 : 0.000V Main : 100K BW : FULL CH2 : 0.0V Zoom : 2K CH3 : 0.00V CH4 : 0.00V CH2 Position 0.20div =Trigger= Mode : AUTO Type : EDGE CH1 Delay : 0.0ns Hold off : 0.2µs
=Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.00V CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V =Record Length= Main : 1K Zoom : 100 =Trigger= Mode : NORMAL Type : EDGE CH1 Delay : 2.887ms Hold off : 0.2µs
Stopped CH1=2V DC 10:1
T
CH2=2V DC 10:1
CH3=2V DC 10:1
1999/04/05 20:50:17 5us/div (5us/div) NORM:100kS/s
10
IC2 57
1
LRSY
5
IC1 27
11 12
Vp-p=1.0V~1.3V 0.5mV/div,0.5µsec/div
IC2 58
2
DATACK
IC2 59
T
3
DATA
CH3 v/DIV 2V =Offset= CH1 : 0.00V CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V =Record Length= Main : 5K Zoom : 100 =Trigger= Mode : AUTO Type : EDGE CH3 Delay : 0.0ns Hold off : 0.2µs
=Filter= Smoothing : ON BW : FULL
Stopped CH1=10V DC 10:1
T
Stopped
100ms/div (100ms/div) NORM:100kS/s
CH1=500mV DC 10:1
T
1999/04/05 20:26:47
CH2=200mV DC 10:1
CH2=1V DC 10:1
CH3=1V DC 10:1
500ms/div (500ms/div) NORM:20kS/s
1
4
IC1 18 ,
2
IC2 24
T 1
FDO
TE
IC2 16
4
3
IC2 72
T 1
IC1 18 ,
3
TE
IC2 16 IC1 13 , IC2 22
CH2 v/DIV 200mV EFBL
2
DRF
13
=Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.0V CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V =Record Length= Main : 100K Zoom : 2K =Trigger= Mode : NORMAL Type : EDGE CH1 Delay : 2.924ms Hold off : 0.2µs
=Filter= Smoothing : ON BW : FULL
=Offset= CH1 : 0.000V CH2 : 0.000V CH3 : 0.00V CH4 : 0.00V
=Record Length= Main : 100K Zoom : 2k
=Trigger= Mode : SINGLE Type : EDGE CH1 Delay : 0.0ns Hold off : 0.2µs
Stopped CH1=200mV DC 10:1
T
CH2=500mV DC 10:1
1999/04/07 09:51:15 500ms/div (500ms/div) NORM:20kS/s
T
1
FDO
IC2 24
2
6
IC2 25
1
SPDO
=Filter= Smoothing : ON BW : FULL
=Offset= CH1 : 0.000V CH2 : 0.000V CH3 : 0.00V CH4 : 0.00V
=Record Length= Main : 100K Zoom : 2K
=Trigger= Mode : NORMAL Type : EDGE CH2 Delay : 2.924ms Hold off : 0.2µs
34
CD-BP1200W/1250W
TROUBLE SHOOTING
When the CD does not function
When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check the following items. Remove the cabinet and follow the trouble shooting instructions. "Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens. Before attemp