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HCD-VX88
SERVICE MANUAL
Ver 1.1 2001.08
E Model
HCD-VX88 is the tuner, tape player, VIDEO CD/ CD player and amplifier section in MHC-VX88.
This stereo system is equipped with the Dolby Btype noise reduction system*. * Manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY and the double-D symbol ; are trademarks of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism CD Section CD Mechanism Type Base Unit Name Optical Pick-up Name TAPE Section Model Name Using Similar Mechanism Tape Transport Mechanism Type
HCD-VX77 CDM58-K2BD37A BU-K2BD37A KSM-213DAP/Z-NP HCD-VX77 TCM-230AWR11
SPECIFICATIONS
Amplifier section
The following measured at AC 120, 220, 240V 50/60 Hz DIN power output (rated) 160 + 160 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference) 200 + 200 watts (6 ohms at 1 kHz, 10% THD) Inputs MD/VIDEO (AUDIO) IN: voltage 450 mV/250 mV, (phono jacks) impedance 47 kilohms MIC: sensitivity 1 mV, (phone jack) impedance 10 kilohms Outputs VIDEO OUT: (Phono jack) S-VIDEO OUT: (4 pin/mini-DIN jack) PHONES: (stereo mini jack) FRONT SPEAKER: SATELLITE SPEAKER:
VIDEO CD/CD player section
System Laser Compact disc and digital audio system Semiconductor laser (=780nm) Emission duration: continuous Max. 44.6 µW* *This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture. 2 Hz 20 kHz (±0.5 dB) 780 790 nm More than 90 dB More than 90 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range Antenna Antenna terminals Intermediate frequency AM tuner section Tuning range Middle Eastern models: Other models: 531 1,602 kHz (with the interval set at 9 kHz) 531 1,602 kHz (with the interval set at 9 kHz) 530 1,710 kHz (with the interval set at 10 kHz) AM loop antenna External antenna terminal 450 kHz 87.5 108.0 MHz FM lead antenna 75 ohm unbalanced 10.7 MHz
Laser output
Frequency response Wavelength max. output level 1 Vp-p, Signal-to-noise ratio Dynamic range unbalanced, Sync negative, load impedance Video color system format NTSC, PAL 75 ohms CD OPTICAL DIGITAL OUT Y: 1 Vp-p, unbalanced (Square optical connector jack, rear panel) Sync negative Wavelength 660 nm C: 0.286 Vp-p 18 dBm load impedence 75 ohms Output Level accepts headphones of 8 Tape player section ohms or more accepts impedance of 6 to Recording system 4-track 2-channel stereo 16 ohms Frequency response 40 13,000 Hz (±3 dB), accepts impedance of 6 to (DOLBY NR OFF) using Sony TYPE I 16 ohms cassette 40 14,000 Hz (±3 dB), using Sony TYPE II cassette
Antenna Antenna terminals Intermediate frequency
-- Continued on next page --
COMPACT DISC DECK RECEIVER
9-929-218-12
2001H0500-1 C 2001.8
Sony Corporation
Home Audio Company Shinagawa Tec Service Manual Production Group
1
General
Power requirements Thailand models: Other models: 220 V AC, 50/60 Hz 120 V, 220 V or 230 - 240 V AC, 50/60 Hz Adjustable with voltage selector 250 watts Approx. 280 x 360 x 425 mm (11 x 143/16 x 1611/16 in.) Approx. 11 kg (24 lb. 5 oz)
TABLE OF CONTENTS 1. SERVICE NOTES ···························································· 4 2. GENERAL ·········································································· 5 3. DISASSEMBLY ································································ 7 4. TEST MODE ···································································· 12 5. MECHANICAL ADJUSTMENTS ····························· 17 6. ELECTRICAL ADJUSTMENTS ······························· 17 7. DIAGRAMS
7-1. 7-2. 7-3. 7-4. 7-5. 7-6. 7-7. 7-8. 7-9. 7-10. 7-11. 7-12. 7-13. 7-14. 7-15. 7-16. 7-17. 7-18. 7-19. 7-20. 7-21. 7-22. 7-23. 7-24. Circuit Boards Location ··················································· 23 Block Diagrams ································································ 25 Printed Wiring Board BD Section ······························ 28 Schematic Diagram BD Section ································· 29 Printed Wiring Board VIDEO Section ······················· 30 Schematic Diagram VIDEO (1/3) Section ················· 31 Schematic Diagram VIDEO (2/3) Section ················· 32 Schematic Diagram VIDEO (3/3) Section ················· 33 Printed Wiring Board MAIN Section ························· 34 Schematic Diagram MAIN (1/3) Section ··················· 35 Schematic Diagram MAIN (2/3) Section ··················· 36 Schematic Diagram MAIN (3/3) Section ··················· 37 Printed Wiring Board POWER AMP Section ············ 38 Schematic Diagram POWER AMP Section ··············· 39 Printed Wiring Boards PANEL Section ······················ 40 Schematic Diagram PANEL Section ·························· 41 Printed Wiring Boards LEAF SW Section ················· 42 Schematic Diagram LEAF SW Section ····················· 43 Printed Wiring Boards DRIVER Section ··················· 44 Schematic Diagram DRIVER Section ······················· 45 Printed Wiring Board TRANS Section ······················· 46 Schematic Diagram TRANS Section ························· 47 IC Pin Function Description ············································· 48 IC Block Diagrams ··························································· 57
Power consumption Dimensions (w/h/d)
Mass:
Design and specifications are subject to change without notice.
8. EXPLODED VIEWS ······················································ 62 9. ELECTRICAL PARTS LIST ······································· 68
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
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 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 pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.
This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.
MODEL IDENTIFICATION
-- BACK PANEL --
PART No.
MODEL
EXCEPT IA model IA model · Abbreviation IA : Indonesian
PART No.
4-225-040-7s 4-227-061-2s
CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 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 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.
3
SECTION 1 SERVICE NOTES
Note for installing the panel board
2 Panel board
Hot melt
: melted-connection point Screw hole 1 Cut the nine melted-connection points with cutting pliers. Attach the panel board with six screws (+BVTP 2.6 × 8 ) after the board is removed once. Do not tighten the screws excessively.
SELF-DIAGNOSIS This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections. Connecting to the LED between TP522 and TP523 on the VIDEO BOARD. Immediately after the power on, the self-diagnosis function searches each operation of IC's around the CD mechanism control microcomputer (IC502). and TP5 The results can be checked by LED of the VIDEO board. Oscilloscope (Waveform)
H
Symptom
[VIDEO BOARD] (SIDE A)
TP523 TP522
No error
L Light
LED
100 1 91 90
H L 2 time blinking
IC505
MPEG decoder (IC505) error
32 33 64
65
H L 3 time blinking
MPEG decoder (IC505) or DRAM (IC507) error
4
SECTION 2 GENERAL
LOCATION OF CONTROLS
· Front view
1
23 4
5678
1 2 3
DISC SKIP button DISC 1 button and indicator DISC 2 button and indicator DISC 3 button and indicator Z OPEN/CLOSE button PREV button NEXT button RETURN button CD disc tray Fluorescent indicator tube EDIT, TUNER MEMORY button PLAY MODE, STEREO/MONO button REPEAT, DOLBY NR button DIRECTION button CINEMA SPACE button VOLUME knob Shuttle knob x button hH button PHONES jack Tape deck-B TAPE A/B button CD button Function indicator TUNER/BAND button MD (VIDEO) button ?/1 button and indicator DISPLAY button SPECTRUM button EQ EDIT button GROOVE button ECHO LEVEL knob MIC LEVEL knob MIC2 jack MIC1 jack g, G, f, F button and indicator PICTURE EFFECT button V-GROOVE button and indicator Tape deck-A . button X button > + button KARAOKE PON button CD SYNC HI-DUB button REC PAUSE/START button and indicator ENTER button
wswdwfwgwh wj wk wl e; ea es ed ef eg eh ej ek el r;rars rd rf rg rh
9 0 qa qs qd qf qg qh qj qkql w; wa
4 5 6 7 8 9 0 qa qs qd qf qg qh qj qk ql w; wa ws wd wf wg wh wj wk wl e; ea es ed ef eg eh ej ek el r; ra rs rd rf rg rh
5
This section is extracted from instruction manual.
Step 3: Setting the time (continued)
Step 3: Setting the time
You must set the time before using the timer functions.
3
Press ENTER.
The minute indication flashes.
4
O nN X x
Press . or > repeatedly to set the minute. Press ENTER.
The clock starts working.
2,4
.
>
m
M
N
X
x
1 3,5
5
Tip
v b V B
If you've made a mistake, start over from step 1.
To change the time
The previous explanation shows you how to set the time while the power is off. To change the time while the power is on, do the following: 1 Press CLOCK/TIMER SET. 2 Press . or > repeatedly to select SET CLOCK. 3 Press ENTER. 4 Perform steps 2 through 5 above.
1
Press CLOCK/TIMER SET.
The hour indication flashes.
Note
The clock settings are canceled when you disconnect the power cord or if a power failure occurs.
2
Press . or > repeatedly to set the hour.
continued
9
10
6
SECTION 3 DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
COVER (TOP)
0 cover (TOP)
9 two screws (BVTP 3 × 12)
5 two screws (case3 TP2)
7 two screws (BVTP 3 × 8)
6 screw (case3 TP2)
4 side panel R
8 side panel L 3 two screws (BVTP 3 × 10)
1 two screws (case3 TP2) 2 screw (case 3 TP2)
LOADING PANEL ASS'Y
CD mechanism deck (CDM58-K2BD37A) 1 Turn the pulley (S) in the direction of the arrow. Front panel side pulley (S) 3 loading panel ass'y
bottom view
2 Pull out the disc tray
7
FRONT PANEL SECTION, CD MECHANISM DECK (CDM58-K2BD37A)
qa CD mechanism deck (CDM58-K2BD37A)
7 two screws (BVTP 3 × 10)
8 9 wire (flat type) (13 core) (CN201) 4 screw (BVTP 3 × 10) 1 wire (flat type) (17 core) (CN304)
5 connector (CN401) 0 connector (CN202)
4 screw (BVTP 3 × 10)
2 two connectors (CN 1, 2) 6 front panel section
BASE UNIT (BU-K2BD37A) (Page 11) DRIVER/MOTOR/SENSOR/ VIDEO BOARDS (Page 11)
3 three screws (BVTP 3 × 8)
TAPE MECHANISM DECK (TCM-230AWR11)
3 screw (BVTP 2.6 × 8) 4 bracket (heat cam L)
5 five screws (BVTP 2.6 × 8)
1 screw (BVTP 2.6 × 8)
2 bracket (heat cam R)
LEAF SW/HEAD (A)/HEAD (B) BOARDS (Page 10)
6 tape mechanism deck (TCM-230AWR11)
8
PANEL BOARD
8 three claws
q; five claws
7 two screws (BVTP2.6 × 8) 6 two knobs (MIC)
9 CD switch board 2 two screws (BVTP2.6 × 8) : melted-connection point
5 spring FR qs panel board 4 FR knob 3 bracket (FR) 1 vol knob qa three claws
q; Cut the nine melted-connection points with cutting pliers. Note: When attaching the panel board, refer to "Service Notes" on page 4.
POWER TRANSFORMER (T971), TRANS BOARD
3 back panel
7 Remove six teen solders of power transformer (T971).
4 connector (CN975)
1 six screws (BVTP 3 × 10)
8 TRANS board 5 two screw (BVTP 4 × 8) 4 connector (CN977) 5 two screws (BVTP 4 × 8) 6 power transformer (T971) 2 connector (CN891)
1 two screws (BVTP 3 × 10)
9
MAIN/POWER AMP BOARDS
7 two screws (BVTP 3 × 8) 5 three screws (BVTP 3 × 8) 8 heat sink
2 two connectors (CN901, 902)
3 MAIN board
6 POWER AMP board
4 two screws (BVTP 3 × 16)
1 two screws (BVTP 3 × 8)
LEAF SW/HEAD (A)/HEAD (B) BOARDS
1 Remove two solders of plunger (PM1001) leads.
3 five claws
2 Remove four solders of capstan/reel motor (M901) lead.
plunger (PM1001)
1 Remove two solders of plunger (PM1002) leads.
4 LEAF SW board
plunger (PM1002) 6 HEAD (A) board
5 ground point screw (PTT 2 × 4)
8 HEAD (B) board
7 ground point screw (PTT 2 × 4)
10
BASE UNIT (BU-K2BD37A)
5 base unit (BU-K2BD37A)
3
4 two insulators
4 two insulators 1 wire (flat type) (23 core) (CN101)
2 four screws (PTPWH M2.6)
DRIVER/MOTOR/SENSOR/VIDEO BOARDS
0 screw (PTPWH 2.6 × 8) 9 MOTOR board 6 two screws (BVTP 2.6 × 8) 4 wire (flat type) (8 core) (CN721) 7 qa tray 5 Remove two solders of turn motor (M721). 8 connector (CN722) 3 DRIVER board qs screw (BVTP 2.6 × 8)
qd SENSOR board
1 connector (CN701)
2 screw (BVTP 3 × 10)
qg VIDEO board
qf two screws (BVTP 2.6 × 8)
11
SECTION 4 TEST MODE
[MC Cold Reset] · The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure: 1. Press three buttons x , ENTER , and ?/1 simulta-neously. 2. The fluorescent indicator tube displays "COLD RESET" and the set is reset. [CD Ship Mode] · This mode moves the pickup to the position durable to vibration. Use this mode when returning the set to the customer after repair. Procedure: 1. Press ?/1 button to turn the set ON. 2. Press CD button and ?/1 button simultaneously. 3. After the "STANDBY" display blinks six times, a message "LOCK" is displayed on the fluorescent indicator tube, and the CD ship mode is set. [MC Hot Reset] · This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged in and out. Procedure: 1. Press three buttons x , ENTER , and DISC 1 simultaneously. 2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset. [CD Service Mode] · This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pickup. Procedure: 1. Press ?/1 button to turn the set ON. 2. Select the function "CD". 3. Press three buttons x , ENTER , and OPEN/CLOSE simultaneously. 4. The CD service mode is selected. 5. With the CD in stop status, turn the shuttle knob clockwise to move the pickup to outside track, or turn the shuttle knob counter-clockwise to inside track. 6. To exit from this mode, perform as follows: 1) Move the pickup to the most inside track. 2) Press three buttons in the same manner as step 2.
Note: · Always move the pickup to most inside track when exiting from this mode. Otherwise, a disc will not be unloaded. · Do not run the sled motor excessively, otherwise the gear can be chipped.
[Change-over of MW Tuner Step between 9 kHz and 10 kHz] · A step of MW channels can be changed over between 9 kHz and 10 kHz. Procedure: 1. Press ?/1 button to turn the set ON. 2. Select the function "TUNER", and press TUNER/BAND button to select the BAND "AM". 3. Press ?/1 button to turn the set OFF. 4. Press ENTER and ?/1 buttons simultaneously, and the display of fluorescent indicator tube changes to "AM 9 k STEP" or "AM 10 k STEP", and thus the channel step is changed over. [GC Test Mode] · This mode is used to check the software version, FL tube, LED, keyboard and VACS. Procedure: 1. Press three buttons x , ENTER , and DISC 2 simultaneously. 2. LEDs and fluorescent indicator tube are all turned on. 3. When you want to enter the software version display mode, press DISC 1 . The model number and destination are displayed. 4. Each time DISC 1 is pressed, the display changes starting from MC version, GC version, VC version, CD version, CM version, ST version, TC version, TA version, TM version and BR version in this order, and returns to the model number and destination display. 5. When DISC 3 is pressed while the version numbers are being displayed except model number and destination, year, month and day of the software creation appear. When DISC 3 is pressed again, the display returns to the software version display. When DISC 1 is pressed while year, month and day of the software creation are being displayed, the year, month and day of creation of the software versions are displayed in the same order of version display. 6. Press DISC 2 button, and the key check mode is activated. 7. In the key check mode, the fluorescent indicator tube displays "KEY0 VOL0". Each time a button is pressed, "KEY" value increases. However, once a button is pressed, it is no longer taken into account. "VOL" value increases like 1, 2, 3 ... if rotating VOLUME knob in "+" direction, or it decreases like 0, 9, 8 ... if rotating in "" direction. 8. Also when DISC 3 is pressed after lighting of all LEDs and FL tubes, value of VACS appears. 9. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.
[VACS ON/OFF Mode] · This mode is used to switch ON and OFF the VACS (Variable Attenuation Control System). Procedure: Press the ENTER and SPECTRUM buttons simultaneously. The message "VACS OFF" or "VACS ON" appears.
12
[MC Test Mode] · This mode is used to check operations of the respective sections of Amplifier, Tuner, CD and Tape. Procedure: 1. Press the ?/1 button to turn on the set. 2. Press the three buttons of x , ENTER and DISC 3 simultaneously. 3. A message "TEST MODE" appears on the FL display tube. 4 When f (CURSOR UP) button is pressed, GEQ increases to its maximum and a message "GEQ ALL MA" appears. 5. When F (CURSOR DOWN) button is pressed, GEQ decreases to its minimum and a message "GEQ ALL M1" appears. 6. When g (CURSOR LEFT) or G (CURSOR RIGHT) button is pressed, GEQ is set to flat and a message "GEQ FLAT" appears. 7. When the VOLUME control knob is turned clockwise even slightly, the sound volume increases to its maximum and a message "VOLUME MAX" appears for two seconds, then the display returns to the original display. 8. When the VOLUME control knob is turned counter-clockwise even slightly, the sound volume decreases to its minimum and a message "VOLUME MIN" appears for two seconds, then the display returns to the original display. 9. In the test mode, the default-preset channel is called even when the TUNER is selected and an attempt is made to call the preset channel that has been stored in memory, by operating the Shuttle knob. (It means that the memory is cleared.) 10. When CD is selected and the EDIT button is pressed, the disc that is being chucked at this moment becomes the default setting. It means that the default disc only is accessed when any other discs are selected even though the display indication changes accordingly. At the same time, the DISC SKIP EXCHANGE and OPEN/CLOSE cannot be accepted. (It means that the tray motor and the turntable motor are disabled of their operation.) 11. When a tape is inserted in Deck B and recording is started, the input source function selects VIDEO automatically. 12. When x button is pressed to stop recording, the Tape (Deck) B is selected and tape is rewound using the Shuttle knob, tape is rewound, tape is stops at around the record-starting position and playback of the recorded portion of the tape is started. If PAUSE is inserted even once during recording, tape is rewound to the position around the PAUSE position and is played back. 13. When the CD SYNC HI-DUB Button is press during playback of Deck B, either normal speed or high speed can be selected by this button. 14. Select the desired loop by pressing the PLAY MODE button. Insert a test tape AMS-110A or AMS-RO to Deck A. 15. Press the SPECTRUM button to enter the AMS test mode. 16. After a tape is rewound first, the FF AMS is checked, and the mechanism is shut off after detecting the AMS signal twice. 17. Then the REW AMS is checked and the mechanism is shut off after detecting the AMS signal twice. 18. When the check is complete, a message of either OK or NG appears. 19. When you want to exit this mode, press the ?/1 button twice. The cold reset is enforced at the same time.
13
[Aging Mode] This mode can be used for operation check of CD section and tape deck section. · If an error occurred: The aging operation stops and display status. · If no error occurs: The aging operation continues repeatedly. 1. Operating method of Aging Mode Turn on the main power and select "CD" of the function. 1) Set a disc in DISC1 tray. Select CONTINUE ALL DISCS (press the PLAY MODE button), and REPEAT OFF (press the REPEAT button). 2) Load the tapes recording use into the decks A and B respectively. 3) Press three buttons x , ENTER , and DISC SKIP/EX-CHANGE simultaneously. 4) Aging operations of CD and tape are started at the same time. 5) To exit the aging mode, perform [MC Cold Reset]. 3. Aging Mode in CD section 1) Display state Display · No error occurs
AGING[*][*][*][*]
Note: [*][*][*][*] : Number of aging operations
Error display E ** s ## $$ %% 12 3 4 5 1 ** The error No. 00 indicates the newest error. As the error No. increases, it means the older error. When you want to retrieve the error history, press the PLAY MODE button in the case of mechanism error. Or press the REPEAT button in the case of NO DISC error. 2 s M: Mechanism error D: No disc error 01: FOCUS ERROR 3 ## Don't care 02: GFS ERROR 03: SETUP ERROR 4 $$ High order digits only 01: NO DISC judgment without chucking retry D: Stopped during closing due to problems other than mechanism. 02: NO DISC judgment after chucking retry E: Stopped during opening due to problems other than mechanism. C: Stopped during chucking due to problems other than mechanism. F: Stopped during EX-opening due to problems other than mechanism. Status at the time of NO DISC judgment 5 %% Emergency related errors (High order digits only) 1: Stopped during chuck-up (High order digits only) 2: Stopped during chuck-down 1: STOP 3: Time out by EX-OPEN 2: SETUP 5: Time out by EX-CLOSE 3: TOC READ 4: ACCESS 5: PLAY BACK 6: PAUSE 7: MANUAL SEARCH (PLAY) 8: MANUAL SEARCH (PAUSE) · When the buttons x , ENTER and DISC 1 are pressed simultaneously, number of time of the mechanism error and the NO DISC error can be checked. Display: EMC**EDC** **: Number of times of error (Maximum three times) EMC: Mechanism error EDC: NO DISC error · When aging operation is complete, be sure to perform the MC Cold Reset to reset the error history.
14
2) Operation during aging mode In the aging mode, the program is executed in the following sequence. (1) The disc tray opens and closes. (2) The mechanism accesses DISC 2 and makes an attempt to read TOC. However, since there are no discs, a message "CD2 NO DISC" appears. (3) The mechanism accesses DISC 3 and a message "CD3 NO DISC" appears. (4) The disc tray turns to select a disc1. (5) A disc is chucked. (6) TOC of disc is read. (7) The pickup accesses to the track 1, and playing 2 seconds. (8) The pickup accesses to the last track, and playing 2 seconds. (9) Every time when an aging operation of step 1 to step 8 is complete, the display "AGING[*][*][*][*]" value increases as the number of aging operations is counted up. (10) Returns to step 1. 3. Aging Mode in Tape Deck section 1) Display state · No error occurs Display action now · Error occurred Display action last time
NO. Display action 1 2 3 4 5 6 7 8 9 TAPE A AG-1 TAPE A AG-2 TAPE A AG-3 TAPE A AG-4 TAPE A AG-5 TAPE B AG-2 TAPE B AG-3 TAPE B AG-4 TAPE B AG-5 Action contents FWD play the TAPE A F.F. the TAPE A REV play the TAPE A Rewind the TAPE A FWD play the TAPE B F.F. the TAPE B REV play the TAPE B Rewind the TAPE B Final timing 2 minutes playing 20 second FF or the end of tape 2 minutes playing The top of tape 2 minutes playing 20 second FF or the end of tape 2 minutes playing The top of tape
Rewind the TAPE A, B The top of tape
2) Operation during aging mode In the aging mode, the program is executed in the following sequence. (1) Rewind is executed up to the top of tape A and B. (2) A tape on FWD side is played for 2 minutes. (3) FF is executed up to either made for 20 second or the end of tape. (4) A tape is reversed, and the tape on REV side is played for 2 minutes. (5) Rewind is executed up to the top of tape. (6) Returns to step 2, and repeat steps from 2 to 5. [Function Change Mode] * Select either VIDEO or MD of the external FUNCTION input. Procedure: 1. Turn on the power. 2. Press the two buttons ENTER and ?/1 at the same time. The main power is turned on and the other function of the previous function is selected and displayed. "MD" or "VIDEO".
15
VIDEO CD COLOR-BARS MODE
On this mode, the data of the color-bars signal as a picture signal and the 1kHz sine wave signal as a sound signal are output by the CD mechanism control microcomputer (IC502) for video CD signal check. When measurement of the voltage and waveform on the VIDEO board, perform it in this mode. For reference, the color-bars signal can be observed at J302 (VIDEO OUT) and the sound signal can be observed at J101 (VIDEO/MD (AUDIO) OUT) using an oscilloscope. 1. Connect the lead wire to both ends of the land of SL503 of the VIDEO board. 2. Turn the power on. Press CD button to select CD. 3. After 2 or 3 seconds later, connect the lead wire. 4. After measuring, remove the lead wire connected. [VIDEO BOARD] (SIDE A)
SL501 SL502 SL503 TEST MODE
IC505
CT503 VIDEO FREQUENCY IC507
[VIDEO BOARD] (SIDE B)
TEST MODE
SL503 SL502 SL501
IC502
16
SECTION 5 MECHANICAL ADJUSTMENTS
Precaution 1. Clean the following parts with a denatured alcohol-moistened swab: record/playback heads pinch rollers erase head rubber belts capstan idlers 2. Demagnetize the record/playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Measurement
Mode Torque meter Meter reading
SECTION 6 ELECTRICAL ADJUSTMENTS
DECK SECTION
0 dB=0.775 V
FWD
CQ-102C
FWD back tension REV
CQ-102C
CQ-102RC
REV back tension FF/REW
CQ-102RC
CQ-201B
FWD tension
CQ-403A
REV tension
CQ-403R
3.06 N · m to 6.96 N · m 31 to 71 g · cm (0.43 0.98 oz · inch) 0.19 N · m to 0.58 N · m 2 to 6 g · cm (0.02 0.08 oz · inch) 3.06 N · m to 6.96 N · m 31 to 71 g · cm (0.43 0.98 oz · inch) 0.19 N · m to 0.58 N · m 2 to 6 g · cm (0.02 0.08 oz · inch) 6.96 N · m to 14.02 N · m 71 to 143 g · cm (0.98 1.99 oz · inch) 9.80 N · m 100 g or more (3.53 oz or more) 9.80 N · m 100 g or more (3.53 oz or more)
1. Demagnetize the record/playback head with a head demagnetizer. 2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the parts adjust. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 6. The adjustments should be performed for both L-CH and RCH. 7. Switches and controls should be set as follows unless otherwise specified. · Test Tape Tape P-4-A100 WS-48B P-4-L300 Signal 10 kHz, 10 dB 3 kHz, 0 dB 315 Hz, 0 dB Used for Azimuth Adjustment Tape Speed Adjustment Level Adjustment
Record/Playback Head Azimuth Adjustment
DECK A
DECK B
Note: Perform this adjustments for both decks
Procedure: 1. Mode: Playback
test tape P-4-A100 (10 kHz, 10 dB) MAIN board CN301 Pin 3 (L-CH) Pin 1 (R-CH) level meter set MAIN board CN301 Pin 2 (GND) +
17
2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.
Tape Speed Adjustment DECK B
Note: Start the Tape Speed adjustment as below after setting to the test mode. In the test mode, the tape speed is high during pressing the CD SYNC HI-DUB button.
L-CH peak Output level
within 1dB within 1dB
Screw position
R-CH peak L-CH peak R-CH peak
Procedure: 1. Turn the power switch on. 2. Press the x button, ENTER button and DISC 3 button simultaneously. (The "TEST MODE" on the fluorescent indicator tube display while in the test mode.) To exit from the test mode, press the ?/1 button. Mode: Playback
test tape WS-48B (3 kHz, 0 dB) set
Screw position
frequency counter
+ MAIN board CN301 (Pin 3 : L-CH) (Pin 1 : R-CH)
3. Mode: Playback
test tape P-4-A100 (10 kHz, 10 dB) L-CH MAIN board CN301 set R-CH pin 1 waveform of oscilloscope oscilloscope pin 3 pin 2 L R V H
in phase 45 ° good
90 ° 135 ° 180 ° wrong
1. Insert the WS-48B into the deck B. 2. Press the gG button on the deck B. 3. Press the CD SYNC HI-DUB button in playback mode. Then at HIGH speed mode. 4. Adjust RV1001 on the LEAF SW board do that frequency counter reads 6,000 ± 30 Hz. 5. Press the CD SYNC HI-DUB button. Then back to NORMAL speed mode. 6. Adjust RV1002 on the LEAF SW board so that frequency counter reads 3,000 ± 15 Hz. Adjustment Location: LEAF SW board Playback Level Adjustment Procedure: Mode: Playback
test tape P-4-L300 (315 Hz, 0 dB) set
DECK A
DECK B
4. After the adjustments, apply suitable locking compound to the pats adjusted. Adjustment Location: Playback Head (Deck A). Record/Playback/Erase Head (Deck B).
level meter +
MAIN board CN301 (Pin 3 : L-CH) (Pin 1 : R-CH)
Deck A is RV302 (L-CH) and RV352 (R-CH), Deck B is RV303 (L-CH) and RV353 (R-CH) so that adjustment within adjustment level as follows. Adjustment Level: CN301 PB level: 301.5 to 338.3 mV (8.2 to 7.2 dB) level difference between the channels: within ±0.5 dB Adjustment Location: MAIN board Sample Volue of Wow and Flutter: 0.3% or less W. RMS (WS-48B)
forward reverse
18
REC Bias Adjustment DECK B Procedure: INTRODUCTION When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the "REC memory mode" which rewinds only the recorded portion and playback is set. This "REC memory mode" is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO. (If do not operation of stopped from recording complete, and rotate of shuttle knob then rewind to recording start position.) 1. Press MD (VIDEO) button to select VIDEO. (This step is not necessary if the above test mode has already been set.) 2. Insert a tape into deck B. 3. After press REC PAUSE/START button, press REC PAUSE/ START button, then recording start. 4. Mode: Record
4. Mode: Record
MD/VIDEO (AUDIO) IN 315 Hz, 50 mV (23.8 dB) 600 attenuator
set
AF OSC
blank tape CS-123
5. Mode: Playback
recorded portion set level meter +
CN301 (Pin 3 : L-CH) (Pin 1 : R-CH)
AF OSC
MD/VIDEO (AUDIO) IN 1) 315 Hz 50 mV (23.8 dB) 2) 10 kHz 600
set
blank tape CN-123
attenuator
6. Confirm playback the signal recorded in step 3 become adjustable level as follows. If these levels do not adjustable level, adjustment the RV301 (L-CH) and RV351 (R-CH) on the MAIN board to repeat steps 4 and 5. Adjustable Level: CN301 PB level: 47.2 to 53.0 mV (24.3 to 23.3 dB) Adjustment Location: MAIN board
[MAIN BOARD] (Component Side)
5. Mode: Playback
recorded portion set level meter +
CN301 (Pin 3 : L-CH) (Pin 1 : R-CH)
REC LEVEL (L)
PB LEVEL (L) (A)
6. Confirm playback the signal recorded in step 3 become adjustable level as follows. If these levels do not adjustable level, adjustment the RV304 (L-CH) and RV354 (R-CH) on the AUDIO board to repeat steps 4 and 5. Adjustable Level: Playback output of 315 Hz to playback output of 10 kHz: ±1.0 dB Adjustment Location: MAIN board REC Level Adjustment DECK B Procedure: INTRODUCTION When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the "REC memory mode" which rewinds only the recorded portion and playback is set. This "REC memory mode" is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO. (If do not operation of stopped from recording complete, and rotate of shuttle knob then rewind to recording start position.) 1. Press MD (VIDEO) button to select VIDEO. (This step is not necessary if the above test mode has already been set.) 2. Insert a tape into deck B. 3. After press REC PAUSE/START button, press REC PAUSE/ START button, then recording start.
CN301
PB LEVEL (R) (A) PB LEVEL (R) (B)
RV351
3 1
RV301 RV352 RV302 RV353 RV303
REC LEVEL (R) REC BIAS (L)
PB LEVEL (L) (B) RV304 REC BIAS (R)
RV354
[LEAF SW BOARD] (Conductor Side)
TAPE SPEED TAPE SPEED (HIGH) (NORMAL)
RV1001 RV1002
19
FM Tuned Level Adjustment
FM RF SSG 75 coaxial
CD SECTION
Note :
set Carrier frequency : 98 MHz Modulation : AUDIO 1 kHz, 75 kHz deviation (100%) Output level : 28 dB (at 75 W open) FM ANTENNA terminal (TM601)
1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10M impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. S-Curve Check
oscilloscope BD board TP(FEO) TP(VC)
Procedure: 1. Supply a 28 dB 98 MHz signal from the ANTENNA terminal. 2. Tune the set to 98 MHz. 3. Adjust RV611 to the point (moment) when the TUNED indicator on the fluorescent indication tube will change from going off to going on. Adjustment Location: MAIN board Null Adjustment
FM RF SSG 75 coaxial
set Carrier frequency : 98 MHz Modulation : AUDIO 1 kHz, 75 kHz deviation (100%) Output level : 60 dB (at 75 W open) FM ANTENNA terminal (TM601)
Procedure : 1. Connect oscilloscope to TP (FEO). 2. Connect between TP (FEI) and TP (VC) by lead wire. 3. Connect between TP (AGCCON) and TP (GND) by lead wire. 4. Turn Power switch on. 5. Load a disc (YEDS-18) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search) 6. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 4 ±1 Vp-p.
S-curve waveform symmetry
Procedure: 1. Supply a 60 dB 98 MHz signal from the ANTENNA terminal. 2. Tune the set to 98 MHz. 3. Measure voltage between pin wa of IC 601. Adjust T601 until the voltage becomes 0 V. Adjustment Location: MAIN board
[MAIN BOARD] (Component Side)
NULL FM TUNED LEVEL
T601
A within 4 ±1Vp-p B
7. After check, remove the lead wire connected in step 2 and 3.
Note : · Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. · Take sweep time as long as possible and light up the brightness to obtain best waveform.
RF Level Check
oscilloscope BD board TP(RF) TP(VC)
CN301 3 1 RV301 RV302 RV352 RV353 RV351 RV303 CN303 RV304 RV354 CN302 CN304
RV611
Procedure : 1. Connect oscilloscope to TP (RF). 2. Connect between TP (AGCCON) and TP (GND) by lead wire. 3. Turned Power switch on. 4. Load a disc (YEDS-18) and playback. 5. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. 6. After check, remove the lead wire connected in step 2.
20
Note: Clear RF signal waveform means that the shape "" can be clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV TIME/DIV : 500ns
level : 1.45 ± 0.3Vp-p
E-F Balance (1 Track Jump) Check
oscilloscope BD board TP (TEO) TP (VC) +
Procedure: 1. Connect oscilloscope to TP (TEO) and TP (VC) board. 2. Turned Power switch on. 3. Load a disc (YEDS-18) and playback the number five track. 4. Press the hH button. (Becomes the 1 track jump mode.) 5. Confirm that the level B and A (DC voltage) on the oscilloscope waveform.
1 track jump waveform
Center of waveform B A (DC voltage) 0V
level=1.3±0.6Vp-p
Symmetry
Specification level: A x 100=less than ±22% B 6. After check, remove the lead wire connected in step 1.
RF PLL Free-Run Frequency Check Procedure : 1. Connect frequency counter to test point (XPCK) with lead wire.
BD board TP (XPCK) frequency counter +
2. 3.
Turned Power switch on. Put the disc (YEDS-18) in to play the number five track. Confirm that reading on frequency counter is 4.3218MHz.
21
Adjustment Location :
[BD BOARD] (SIDE B)
TP (RF) TP (VC) TP (FEO) TP (AGCCON) TP (TEO) TP (FEI) TP (GND) IC103 IC101 TP (XPCK)
VIDEO SECTION
VIDEO Frequency Adjustment 1. 2. Connect the frequency counter to check point of the VIDEO board. Adjust CT503 of the VIDEO board so that the frequency counter read 27MHz ± 80Hz at STOP condition.
frequency counter VIDEO board TP (27 MHz)
+
Adjustment Location : [VIDEO BOARD] SIDE A [VIDEO BOARD] SIDE B
SL501 SL502 SL503 TEST MODE
IC505
TP (27MHz) CT503 VIDEO FREQUENCY TP (GND)
SL503 TEST SL502 MODE SL501
IC502
IC507
22
SECTION 7 DIAGRAMS
7-1. CIRCUIT BOARDS LOCATION
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)
MOTOR board
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. · % : indicates tolerance. f · : internal component. · 2 : nonflammable resistor. · 5 : fusible 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. · · · · U : B+ Line. V : B Line. H : adjustment for repair. 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 E : PB (DECK A) d : PB (DECK B) G : REC (DECK B) J : CD (AUDIO) c : digital out o : CD (VIDEO) m : VIDEO (C) n : VIDEO (Y) Abbreviation EA : Saudi Arabia model Note on Printed Wiring Boards: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. · b : Pattern from the side which enables seeing. Caution: Pattern face side: (Side B) Parts face side: (Side A) 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.
HCD-VX88
DRIVER board VIDEO board
SENSOR board TRANS board BD board
CD SWITCH board
· Indication of transistor.
C Q B E These are omitted.
PANEL board
Q B C E These are omitted.
·
MAIN board LEAF SW board
· ·
POWER AMP board HEAD (A) board HEAD (B) board
·
23
23
HCD-VX88
Waveforms CD SECTION
VIDEO SECTION
MAIN BOARD
PANEL BOARD
1 IC101 t;
RFAC
1 IC502 qd
XOUT
7 IC509 ql
LRCK
1 IC401 qa
STOP MODE
3 T301 4
TAPE B REC MODE
1 IC601 oa
STOP MODE
1.3Vp-p
4Vp-p
4.6Vp-p 32.768kHz 3.0Vp-p 80.7kHz 120Vp-p
12.5MHz 4.8Vp-p
10MHz
44.1kHz
2 IC101 ra
TE
2.5V
2 IC505 ug
COUT
1Vp-p
8 IC509 qj
BCK
4.8Vp-p
2 IC401 qd
STOP MODE
APPROX 500mVp-p
H
2.11MHz
16MHz
3.4Vp-p
3 IC101 el
FE
2.5V APPROX 200mVp-p
3 IC505 yl
YOUT
2Vp-p
9 IC504 8
384FS
4.8Vp-p
H
33.8MHz
4 IC101 wg
MDP
2.6Vp-p
4 IC304 9
COUT
1Vp-p
q; IC504 6
27M
3.8Vp-p
7.5µsec
H
27MHz
5 IC304 qg
YOUT
2Vp-p
H
6 IC509 1
XT1
5.8Vp-p
27MHz
24
24
HCD-VX88
7-2. BLOCK DIAGRAMS TUNER/CD SECTION
TM601 ANTENNA FM 75 FE602 FM FRONT-END 8 ANT IN IF OUT 1 F OUT 3 VT 4 +B AM 10 FM 1 XIN X651 4.5MHz 24 XOUT 15 FM OSC 18 VT1 IN 17 VT1 19 PD1 RB641 AM FRONT-END 13 1 3 4 5 6 7 14 11 15 9 20 AM RF IN 22 AM OSC 23 V REG 22 ST MUTE DO DI CL CE 27 ST DIN 26 ST DOUT 28 ST CLK 25 ST CE TUNED 6 STEREO 7 24 TUNED 23 STEREO B+ SWITCH Q602 A+12V PLL IC651 FM/AM IF 12 FM 7 AM OSC 14 VCO STOP 2 IF REQ 8 DO 6 DI 4 CL 5 CE 3 DO DI CL CE 9 IF OUT 12 AM/FM 13 VCO STOP 8 IF REQ MUTE FM SD ADJ 3 RV611 FM TUNED LEVEL SYSTEM CONTROLLER IC401(1/2) : CD (VIDEO) 24 AM OSC OUT R OUT 10 T601 NULL 5 FM DET AM IF IN 18 IFT601 : CD (AUDIO) AM MIX OUT 19 : DIGITAL OUT R-CH CF601 AM/FM IF MPX IC601 CF602 1 FM IF L OUT 11 BUFFER Q611
Q601 IF AMP
LPF601 LPF L-CH
A
MAIN SECTION
· R-CH: Same as L-CH. · Signal Path : FM : AM
(Page 27)
2
12
OPTICAL PICK-UP BLOCK (KSS-213D/ZN)
VC A B C D E F Q101 LD AUTOMATIC POWER CONTROL +5V 5 A 6 B 7 C 8 D 11 E 10 F 3 LD 12 VC
RF AMP IC103
A+5V
S101 (LIMIT)
DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR, D/A CONVERTER IC101 26 SSTP D OUT 64
IC201 OPTICAL DIGITAL OUT OPTICAL
RFO 16 RFI 17 FE 14 TE 13
50 RFAC 43 RFDC 39 FE 41 TE 40 SE PCMD 66 B CLK 67 L RCK 65 C2PO 14 DATA 4 XLAT 5 CLOK 6 A DATA B CLK L RCK C2PO DATA XLT CLK SENS S CLK MUTE CTRL1 SCOR SUBQ SQCK XRST MCK IC104 T SENS 49 IC711 TABLE ADDRESS SENSOR MTR CNT1 45 7 MTR CNT2 44 9 MOTOR DRIVE 2 IC701 4 M721 (TURN)
LD ON 22
M
GND HOLD SW 21 PD VR IC102 MOTOR/COIL DRIVE F+ FOCUS COIL FT+ TRACKING COIL 05 M102 (SLED) 16 VO4 () OPIN4 () 26 30 SRDR 29 SFDR 25 MDP T14 VO1 (+) OPIN1 (+) 2 13 VO1 () OPIN1 () 3 12 VO2 (+) OPIN2 (+) 5 11 VO2 () OPIN2 () 6 33 FFDR 34 FRDR 31 TFDR 4 PD
SENS 7 S CLK 8 MUTE 3 XTSL 69 SCOR 15 SQSO 76 SQCK 77 XRST 2 XTAI 71
B
VIDEO SECTION OPEN SW 46 CLOSE SW 47 S701 (OPEN/CLOSE) OPEN CLOSE
(Page 26)
BU UP/DOWN SW 48
32 TRDR
S711 (BU UP/DOWN)
M
15 VO4 (+) OPIN4 (+) 27 18 VO3 () OPIN3 () 23 17 VO3 (+) STBY1 9 STBY2 20 LD ON LPH
C
VIDEO SECTION
I2C-DATA I2C-CLK XRST
30 IIC-DATA 29 IIC-CLK 43 XRST
(Page 26)
M101 (SPINDLE) M
25
25
HCD-VX88
VIDEO SECTION
D-RAM IC507 WE RAS UCAS LCAS DQ16
ROM IC506
DQ1
A11
A17
A10 58 - 44 MA0 I MA10
O0
O7
A0
A8
A0
13 14 28 29
16 - 19 22 - 26
2 - 10
31 - 39
13 - 15 17 - 21
25 4 28 29 3 2 30
12 - 5 27 26 23 22
38 42 MWE RASO
40 CAS
10 - 29 MD0 I MD15
37 MCE IC304 Y/C AMP, MIX AMP J302 VIDEO OUT
LEVEL SHIFT IC501
CE
IC303 HUE CONTROL 4 10 8 4 3 5 CD-DATA CD-BCK CD-LRCK Y-OUT 69 10 VIDEO IN 5 CONTROL VIDEO OUT 1 2 Y IN
ADATA BCLK LRCK
1 13 5
MIX OUT1 12
J301 Y OUT1 15 4 2 7 C IN 1 3 S VIDEO OUT
C2PO
6
CD-C2PO MPEG VIDEO/AUDIO DECODER, VIDEO SIGNAL PROCESSOR IC505
IC302 Y AMP/PICTURE CORRECTION C-OUT 75 1 8 5 IC301 DA-DATA 110 108 111 106 86 V IN TINT BGD 1 MUTEA 8 MUTEB DA-LRCK DA-BCK VCK-IN DA-XCLK C OUT1 9 V OUT 6
DATAI DATAO CLK1 HRDY INT HSEL RST INVERTER Q502 INVERTER Q501
112 HD-OUT 119 HD-IN 117 HCK 113 HRDY 114 HINT 121 HSEL 60 RESET 93 PGIO2/VSYNC/CSYNC
27MHz DIGITAL FILTER & D/A CONVERTER IC509
101 PGIO3/HSYNC 18 19 17 DATAO 14 PLM 11 R-CH
LOW-PASS FILTER IC101 CD-L 3 1
D/A CONV
D
MAIN SECTION
B
CD SECTION
CLK1 CD MECHANISM CONTROLLER IC502 RESOLUTION CHROMA LEVEL DATAO DATAI CLK1 INT HSEL HRDY RESET 31 32 33 20 21 23 24 25 45 95 97 5 1 2 DATA1O DATA1I CLK1 CL680 INTR CL680 HSEL CL680 HRDY 680 RESET HSYNC IN VSYNC DSP DATA DSP LATCH DSP CLK SENSE SENSE CLK BGP V. MUTE DF LATCH 3 4 20 65 22
9 8 7
MODE
CLOCK DIVIDER
1 24
X503 27MHz CT503 VIDEO FREQUENCY
(Page 27)
10 RSTB
21 20 4
(Page 25)
LEVEL SHIFT IC504 XIN XOUT 15 13 X501 10MHz 3 11 1 27MHz 6 384FS 8
DATA XLT CLK SENS SCLK MUTE CTRL1 LPH LDON SCOR SUBQ SQCK
10 DSP MUTE 11 CTRL1(L:DOUBLE) 27 LPH 28 LDON 18 SCOR 36 SUBQ DATA 37 SUBQ CLK 77 DEVICE RESET
I2C-DATA I2C-CLK XRESET TEST1 TEST2 TEST3 TEST LED RTS1 BUS XHOLD BUS XWRL
30 29 12 74 75 76 73 TP522 34 41 46 TP523 SL503 SL502 SL501 5V (SELF-DIAGNOSIS) SL501-503 (TEST MODE) DATAI CLK1 DATAO
I2C-DATA I2C-CLK XRST
C
TUNER/CD SECTION
(Page 25)
CN503 1 2 5 8 3 11 10 TXD S CLK RXD RST BUSY HOLD XWR
FOR FLASH ROM WRITE
D5V
+3.3V REG Q531
+3.3V
XRST 05 MCK
(XTAL 33.8MHz)
· R-CH: Same as L -CH. · SIGNAL PATH : CD (AUDIO) : VIDEO (C) : VIDEO (Y) : CD (VIDEO)
26
26
HCD-VX88
MAIN SECTION
GRAPHIC EQUALIZER CONTROL, ELECTRICAL VOLUME IC101 TUNER SECTION DBFB AMP IC102 5 6 CD-L 7 Q504,505 15 MUTE Q103
IC501 POWER AMP 12 D841 Q503,504 11 Q861 MUTE CONT MUTE Q862 R-CH Q551 OVER LOAD DETECT +B Q506,506 OVER HEAT DETECT R-CH D502 Q823 PROTECT CONT Q828,829 PROTECT SWITCH R CH Q821,822 OVER LOAD DET ECT Q824,825 RELAY DRIVE RY801 R CH
TM801 L R SPEAKER IMPEDANS USE 6-16
(Page 25)
VIDEO SECTION
A D
J101
L-CH
40 IN2A
VOL OUT2 24
38 IN2C Q101,102
(Page 26)
L MD/VIDEO (AUDIO) R
MUTE CONT
L-CH
DBFB CONT 37 IN2D R-CH Q503 DBFB SWITCH PB AMP, REC EQ AMP, DOLBY B NR IC301 R IN (L) A IBN (L) 48 RV303 R-CH DECK-B PB AMP IC304 PLAYBACK LEVEL (DECK-B, L-CH) B 46 IC302 REC/PB SWITCH 1 B IN (L) 120 21 DATA 22 CLOCK A 70 REC PB DOLBY B DOL PAS L-OUT PB OUT (L) 40 R-CH 39 IN2B IN2 34 43 IC104 MIC AMP 35 INVOL OUT2 MUTE CONT MUTE Q581
J631 PHONES
Q891,892 FAN DRIVE
FAN
HP901 (PB)
RV302 DECK-A PB AMP IC303 PLAYBACK LEVEL (DECK-A, L-CH)
FL601 Q831, 832 RELAY DRIVE FLOURESCENT INDICATOR TUBE
L-CH
DECK-A
R-CH
DISPLAY CONTROLLER IC601 3 HEADPHONE P1 50 . 52 85 49 33 F1
F2
HRPE901 (REC/PB/ERASE)
RELAY +7V
Q615 +5.6V REG
IC602 10 SPEANA BPF 6 5 4 17 12 11 20 BPF 0 25 BPF 5 26 ALL BAND
P35 G1 G17
Q606-614 FL DRIVER
L-CH 2 4 REC/PB SWITCH CONTROL Q304,305
R-CH
Q630-635 PLAY1-3 10 EXIST1-3 5 LED DRIVER D630-632
R-CH
R-CH C332,L301
3 R CH 36 EQ OUT (L) EQ IN (L) 38 RV301 T301 TA+12V Q301 BAIS B+ SWITCH 33 32 NORM CROM BIAS SW REC LEVEL (L-CH) A120/70 39 B NORM/CROM/METAL REC OUT (L) SURROUND PROCESSOR IC103 J721 MIC 1 7 L-IN REC /PB/PASS BIAS ON/OFF L-OUT 10 IC722
RV722 MIC LEVEL IC722
3 S617,618,623-625, S627,628,630-636 FUNCTION KEY S611-616 S619-622,626,629 17 KEY0
DECK-B
RV304 R-CH REC BIAS (L-CH)
BIAS TRAP
REC EQ
GROOVE LED 11 FILE LED 12 BASS SHIFT LED 13 FUNCTION LED 14 18 KEY1 REC/PAUSE LED 15 SURROUND LED 16 Q605 19 KEY2 TIMER LED 27 LED DRIVER Q604 Q621-626 LED DRIVER
D611-615 D617,618
NORM/HIGH
ALC ON/OFF
NR ON/OFF
LM ON/OFF
PB A/B
ERASE
MS OUT
BIAS OSC Q302,303
RM ON/OFF
FUNCTION KEY IC721 J722 MIC 2 CONT2 CONT3 BP/SR 2 DIGITAL ECHO 6 RV721 S637-648 FUNCTION KEY ECHO LEVEL LED PROTECT S MUTE L MUTE
17 19 16 18 15 20 22 23 24 25 26 Q141
D602 TIMER
+6V
DC BIAS
A+12V
1
2
3
D601 VOLUME
ROTARY ENCODER
1 VOL A 2 VOL B
POWER LED 28
LED DRIVER
D601
S1004 (A 120/70) S1008 (A 120/70)
SIRCS IC603
100 SIRCS
XIN 89 X601 12.5MHz XOUT 90
TAPE MECHANISM DECK BLOCK (TCM-230AWR11)
97 I2C DATA 98 I2CCLOCK AUDIO +5V 96 WAKE UP
S1003 (A HALF) S1005 (REC A) S1006 (B HALF) S1009 (REC B) AUDIO +5V
S1001 (A PLAY)
S1002 (B PLAY)
X401 32.768kHz
X402 16MHz
92 RESET Q941,942
B HALF
A HALF
DBFB ON/OFF
REC MUTE
NR ON/OFF
B PLAY
A PLAY
DATA
IIC CLK
TC RELAY
LINE MUTE
WAKE UP
ALC
X IN
TC MUTE
X OUT
EQ H/N
BIAS
CLK
SURROUND1
SURROUND2
SURROUND3
XC OUT
R/PB PAS
PROTECT
STK MUTE
IIC DATA
RELAY H
AMS IN
AC CUT
PB A/B
XC IN
Q393,394 PM1001 (DECK-A) A TRIG DRIVE Q391,392 PM1002 (DECK-B) B TRIG DRIVE IC1001 REEL DETECT (DECK-A) IC1002 CAP H/L REEL DETECT (DECK-B) M901 (CAPSTAN) 91 B SHOT 90 A SHUT 58 B TRIG 57 A TRIG
69 68 93 67
79
10
11
15
13
77 76 78 75 74 73 72 71 70
4
5
1
2
3
83
84
100
87 82
30 29 18
7 MIC B+
Q721 MIC REG MIC A +12V
-B
-V REG T971 POWER TRANSFORMER S951 VOLTAGE SELECTOR F975 230-240V 220V
D541 CD D+5V CD A+5V 3 IC911 +5V REG 1 Q911,912 CD POWER SWITCH POWER AMP +B -B D901-904
F974
SYSTEM CONTROLLER IC401(2/2)
RDS D+5V UNSW CD POWER 85 D952 IC951 3 +5V REG 1 D822 D953
120V F971 AC IN
CAP M CONT
BOOSTER SW
AUDIO +5V A+12V RESET TC A+12V MIC A+12V ST A+12V
FREQ A
FREQ B
IC921 3 +12V 1 REG IC961
D824
D911 D906-909 D910
60 Q396,397 CAP MOTOR DRIVE Q1001 MOTOR CONTROL RV1002 TAPE SPEED (NORMAL) Q395 CAP MOTOR SPEED CONT R1001 TAPE SPEED (HIGH)
59
52 51 89
12
M
3 CONT A 2 CONT B 1 BOOSTER SW 12 L-OUT 10 TO SATELLITE AMPLIFIER (TA-DX8) R-OUT 8 RELAY ON/OFF 5 PROTECT 7 S MUTE L MUTE LED STK MUTE 6 LINE MUTE 4 STANDBY LED R-CH RELAY L-OUT
Q501
IC501 RESET
TC M+9V CD M+7V LED +7V
3
+9V REG IC931
1
3
+7V REG
1
F1 F2
EVER +5V D511
05 · R-CH: Same as L-CH. · Signal Path : PB (DECK A) : PB (DECK B) : REC (DECK B) : FM
D508 PROTECT
IC101 : CD SYSYTEM CONTROL
27
27
HCD-VX88
7-3. PRINTED WIRING BOARD BD SECTION · See page 23 for Circuit Boards Location.
· Semiconductor Location
Ref. No. IC104 Q101 Location D-1 C-3
· Semiconductor Location
Ref. No. IC101 IC102 IC103 Location C-2 B-2 C-1
TP (XPCK)
VIDEO BOARD CN501 (Page 30)
28
28
HCD-VX88
7-4. SCHEMATIC DIAGRAM BD SECTION · See page 24 for Waveforms. · See page 57 for IC Block Diagrams.
(Page 31)
· Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD STOP
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
29
29
HCD-VX88
7-5. PRINTED WIRING BOARD VIDEO SECTION · See page 23 for Circuit Boards Location.
BD BOARD CN101 (Page 28)
· Semiconductor Location
Ref. No. D501 IC101 IC303 IC504 IC505 Location B-1 D-3 A-3 C-2 B-2 Ref. No. IC507 IC509 Q501 Q502 Location B-3 C-3 B-1 B-1 (Page 34) MAIN BOARD CN201
· Semiconductor Location
Ref. No. IC301 IC302 IC304 IC501 IC502 IC506 Location A-3 A-3 A-2 C-2 D-2 C-1 B-3
30
30
Q531
HCD-VX88
7-6. SCHEMATIC DIAGRAM VIDEO (1/3) SECTION · See page 24 for Waveform.
(Page 33)
(Page 29)
(Page 33)
(Page 33)
(Page 32)
· Voltages and waveforms are dc with respect to ground in test mode. no mark : VIDEO CD COLOR-BARS mode
31
31
HCD-VX88
7-7. SCHEMATIC DIAGRAM VIDEO (2/3) SECTION · See page 24 for Waveforms.
(Page 31)
(Page 33)
· Voltages and waveforms are dc with respect to ground in test mode. no mark : VIDEO CD COLOR-BARS mode
32
32
HCD-VX88
7-8. SCHEMATIC DIAGRAM VIDEO (3/3) SECTION · See page 24 for Waveforms. · See page 57 for IC Block Diagrams.
(Page 31)
(Page 31)
(Page 32)
(Page 37)
(Page 31)
· Voltages and waveforms are dc with respect to ground in test mode. no mark : VIDEO CD COLOR-BARS mode
33
33
HCD-VX88
· Semiconductor
7-9. PRINTED WIRING BOARD MAIN SECTION · See page 23 for Circuit Boards Location.
(Page 30)
Location
Ref. No.
D501 D502 D503 D504 D505 D506 D507 D508 D511 D601 D641 D651 D801 D822 D824 D841 D861 D891 D892 D901 D902 D903 D904 D906 D907 D908 D909 D910 D911 D952 D953 IC101 IC102 IC103 IC104 IC201 IC301 IC302 IC303 IC304 IC401 IC501 IC601 IC651 IC911 IC921 IC931 IC951 IC961 Q101 Q102 Q103 Q141 Q151 Q152 Q153 Q301 Q302 Q303 Q304 Q305 Q391 Q392 Q393 Q394 Q395 Q396 Q397 Q501 Q503 Q504 Q505 Q601 Q602 Q611 Q612 Q821 Q822 Q823 Q824 Q825 Q828 Q829 Q831 Q832 Q861 Q862 Q863 Q891 Q892 Q911 Q912
Location
B-4 B-4 A-4 B-3 A-4 A-4 A-4 C-1 C-1 C-9 D-11 C-8 H-10 F-10 F-9 G-10 H-8 H-11 H-11 H-9 H-9 H-9 H-9 H-9 I-9 I-9 I-9 I-6 I-6 G-6 G-6 E-7 C-5 B-5 C-6 A-11 G-5 H-3 F-2 G-3 B-2 B-4 C-10 A-9 C-8 H-7 H-5 G-6 H-6 D-6 D-5 I-7 D-4 D-6 C-5 I-7 H-4 I-4 I-5 H-4 H-5 D-1 D-1 D-2 D-1 E-2 E-2 D-1 B-4 D-3 D-3 D-3 C-9 A-11 D-9 D-9 H-10 H-10 G-10 G-10 G-10 F-10 G-10 G-11 G-11 H-8 G-10 G-9 F-10 G-10 C-8 D-8
(Page 44)
(Page 40)
(Page 42)
(Page 42)
(Page 42)
(Page 38)
(Page 38)
34
34
HCD-VX88
7-10. SCHEMATIC DIAGRAM MAIN (1/3) SECTION · See page 57 for IC Block Diagrams.
(Page 37)
· Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : AM
35
35
HCD-VX88
7-11. SCHEMATIC DIAGRAM MAIN (2/3) SECTION · See page 24 for Waveforms. · See page 57 for IC Block Diagrams.
(Page 37)
(Page 37)
(Page 37)
(Page 43) · Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD (STOP) ( ) : REC < > : TAPE PB The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
36
36
HCD-VX88
7-12. SCHEMATIC DIAGRAM MAIN (3/3) SECTION
(Page 35)
(Page 39)
(Page 39)
(Page 33)
(Page 45)
(Page 36)
(Page 36)
(Page 36) (Page 41)
· Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD (STOP) ( ) : REC < > : TAPE PB
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
37
37
HCD-VX88
7-13. PRINTED WIRING BOARD POWER AMP SECTION · See page 23 for Circuit Boards Location.
· Semiconductor
(Page 34) (Page 34)
Location
Ref. No. D501 D502 D503 D504 D541 D543 D551 D581 D941 D979 IC501 Q501 Q503 Q504 Q505 Q506 Q551 Q581 Q941 Q942 Location B-5 A-4 E-4 F-5 C-1 E-2 B-5 E-4 A-1 A-1 D-6 B-2 F-1 F-1 F-4 F-5 B-5 E-4 B-1 A-1
(Page 46)
(Page 46)
38
38
HCD-VX88
7-14. SCHEMATIC DIAGRAM POWER AMP SECTION
(Page 47)
(Page 47)
(Page 37)
(Page 37)
· Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD (STOP)
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
39
39
HCD-VX88
7-15. PRINTED WIRING BOARDS PANEL SECTION · See page 23 for Circuit Boards Location.
· Semiconductor
Location
CD SWITCH Board
Ref. No. D630 D631 D632 Q630 Q631 Q632 Q633 Q634 Q635 Location A-8 A-6 A-5 A-8 A-8 A-5 A-9 A-9 A-4
CD SWITCH BOARD
CD SWITCH BOARD NO603
· Semiconductor
Location
PANEL Board
Ref. No. D601 D602 D603 D604 D605 D611 D612 D613 D614 D615 D617 D618 IC601 IC602 IC603 IC721 IC722 Q604 Q605 Q606 Q607 Q608 Q609 Q610 Q611 Q612 Q613 Q614 Q615 Q621 Q622 Q623 Q624 Q625 Q626 Q721 Location A-10 B-2 D-3 C-1 F-9 B-9 E-8 E-9 G-8 D-6 G-5 C-2 C-6 F-4 A-9 D-9 G-9 C-10 A-3 C-8 C-8 C-8 C-8 B-8 B-9 B-9 C-7 C-7 C-3 A-9 E-9 F-8 E-6 G-5 C-2 G-8
(Page 34)
40
40
HCD-VX88
7-16. SCHEMATIC DIAGRAM PANEL SECTION · See page 24 for Waveform. · See page 57 for IC Block Diagrams.
CD SWITCH BOARD
(Page 37)
· Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD (STOP)
41
41
HCD-VX88
7-17. PRINTED WIRING BOARDS LEAF SW SECTION
· See page 23 for Circuit Boards Location.
(Page 34)
(Page 34)
(Page 34)
42
42
HCD-VX88
7-18. SCHEMATIC DIAGRAM LEAF SW SECTION
(Page 36)
· Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : PB (DECK-A) ( ) : PB (DECK-B)
43
43
HCD-VX88
7-19.
· Semiconductor
PRINTED WIRING BOARDS DRIVER SECTION · See page 23 for Circuit Boards Location.
Location
Ref. No. D701 IC701 IC711 Location E-1 E-1 B-5
1 A
2
3
4
5
6
(BU UP/DOWN)
B
C
D
E
F
05
CN202
(Page 34)
44
44
HCD-VX88
7-20. SCHEMATIC DIAGRAM DRIVER SECTION · See page 57 for IC Block Diagram.
(Page 37)
· Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD (STOP)
45
45
HCD-VX88
7-21. PRINTED WIRING BOARD TRANS SECTION · See page 23 for Circuit Boards Location.
(Page 38)
(Page 38)
46
46
HCD-VX88
7-22. SCHEMATIC DIAGRAM TRANS SECTION
(Page 39)
(Page 39)
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
47
47
HCD-VX88
7-23. IC PIN FUNCTION DESCRIPTION
· IC101 DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR, D/A CONVERTER (CXD3008Q) (BD Board)
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 Pin Name DVDD0 XRST MUTE DATA XLAT CLOK SENS SCLK ATSK WFCK XUGF XPCK GFS C2PO SCOR CM4 WDCK DVSS COUT MIRR DFCT FOK PWMI LOCK MDP SSTP FSTO DVDD1 SFDR SRDR TFDR TRDR FFDR FRDR DVSS1 TEST TES1 VC FE SE I/O -- I I I I I O I I/O O O O O O O O O -- O O O O I I/O O I O -- O O O O O O -- I I I I I TEST pin connected normally ground Center voltage input FOCUS error signal input Sled error signal input Focus coil drive output Digital ground Sled motor drive output +5V power supply (digital) System reset Muting selection pin Serial data input, supplied from CPU Latch input, supplied from CPU Serial data transfer clock input, supplied from CPU SENS output SENS serial data read-out clock Input pin for anti-shock (Connected to ground) WFCK (Write Frame Clock) output (Not used) XUGF output (Not used) XPCK output (Not used) GFS output (Not used) C2PO output Sub-code sync output 4.2336MHz output (Not used) 48-bit slot D/A interface word clock (Not used) Digital ground Numbers of track counted signal output (Not used) Mirror signal output (Not used) Defect signal output (Not used) Focus OK output (Not used) (Not used) GFS in sampled by 460Hz (Not used) Output to control spindle motor servo Detection signal input from limit switch 2/3 divider output (Not used) Digital power supply Description Pin No. 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 Tracking coil drive output 72 73 74 75 76 77 78 79 80 TE CE RFDC ADIO AVSS0 IGEN AVDD0 ASYO ASYI RFAC AVSS1 CLTV FILO FILI PCO AVDD1 BIAS VCTL V16M VPCO DVDD2 ASYE MD2 DOUT LRCK PCMD BCLK EMPH XTSL DVSS2 XTAI XTAO SOUT SOCK XOLT SQSO SQCK SCSY SBSO EXCK Pin Name I/O I I I O -- I -- O I I -- I O I O -- I I I/O O -- I I O O O O O I -- I O O O O O I I O I Sub-Q serial output Clock input for SQSO read-out Sub-code input (Connected to ground) Sub-P through Sub-W serial output (Not used) Clock input for SBSO read-out (Connected to ground) (Not used) Tracking error signal input Center servo analog input RF signal input Test pin (Not used) Analog ground Power supply pin operational amplifiers +5V power supply (analog) EFM full swing output Asymmetry comparate voltage input EFM RF signal input Analog ground Control voltage input for master VCO Filter output for master PLL Filter input for master PLL Charge-pump output for master PLL +5V power supply (analog) Asymmetry circuit constant current input Control voltage input for variable pitch PLL 16.9344MHz output (Not used) Charge-pump output for variable pitch PLL (Not used) +5V power supply (digital) Asymmetry circuit ON/OFF (Connected to +5V.) Digital-out ON/OFF control (Connected to +5V.) Digital-out output 48-bit slot D/A interface, LR clock output 48-bit slot D/A interface, Serial deta output 48-bit slot D/A interface, bit clock output Playback disc output in emphasis mode (Not used) X'tal selection input pin Digital ground X'tal oscillator circuit input X'tal oscillator circuit output (Not used) Description
48
48
· IC502 CD, MECHANISM CONTROLLER (M30620MCA-A34FP) (VIDEO Board (1/3))
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 SENSE SENSE CLK RESOLUTION CROMA LEVEL DSP CLK TSENS REMOTE IN BYTE CNVSS DSP MUTE CTRL1 (L : DOUBLE) XRESET XOUT VSS XIN VCC NMI SCOR D SENS CL680 INT CL680 HSEL DF LATCH CL680 HRDY 680 RESET H. SYNC IN BGP LPH LD ON IIC-CLK IIC-DATA DATA1O DATA1I CLK1 RTS1 XVLEVEL. DOWN SUBQ DATA SUBQ CLK P. ON BUS XRDY BUS BUS XHOLD BUS OSD LANGUAGE V. SYNC Pin Name I/O I O O O O I I I O O I O I I I I I O O I O I O O O I/O I/O O I O O O I I I I I I I I I Description Internal state (SENSE) monitor input (IC101) Serial data reading clock output (IC101) Serial data output (IC101) Lach output (IC101) Serial data clock output (IC101) Not used Not used External bus width change input (Connected to ground) Ground Mute output (IC101) "H" : mute Double change output (IC101) "L" : double System reset input "L" : reset Main clock output (10MHz) Ground Main clock input (10MHz) +5V power supply Requests mask disable interruption input (Connected to +5V) Subcode sync input (IC101) Not used Video CD interruption input (IC505) Video CD select data of the host MPU (IC505) Digital filter latch output (IC509) Ready signal input for communication to the host MPU (IC505) Video CD reset output (IC505) "L" : reset H. sync signal input BGP output Double control output (IC101) "H" : double Laser diode ON/OFF output IIC clock input from master control IIC data input from master control Serial 1 data output (IC505, 509) Serial 1 data input (IC505, 509) Serial 1 clock output Not used Fix the video signal output level output (Not used) Serial 2 data input for subcode sync reading Serial 2 clock input for subcode sync reading Not used Not used Not used Not used Not used Model selection input "L" : chinese model, "H" : except chinese model V sync signal input
49
Pin No. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 to 72 73 74 75 76 77 78 79 80 81 to 88 89 90 91 92 93 94 95 96 97 98 99 100
Pin Name BUS XWRL LO. BOOST AUDIO MUTE LOAD OUT LOAD IN INSW OUTSW MODEL 1 MODEL 2 TBLL TBLR ENC 1 ENC 2 ENC 3 -- -- VCC -- VSS V. MUTE A6 to A0 TEST LED TEST 1 TEST 2 TEST 3 DEVICE RESET STANDBY FL CS FL D7 to D0 MIC CTRL KEY 1 KEY 2 KEY 3 NY/PAL MUSIC VOL DSP DATA AVSS DSP LATCH VREF AVCC AMP. ON
I/O I I O I I I I I I I I I I I I I I O I O I I I O I I I I I I I I I I O O I I Not used Not used Audio mute output "L" : mute (Not used) Not used Not used Not used Not used L : System input (Fixed at "L") L : System input (Fixed at "L") Not used Not used Not used Not used Not used Not used Not used +5V power supply Not used Ground Video mute output "L" Not used TEST LED for MPEG decoder Test mode for Video CD check Test mode for servo check Not used Device system rest output "L" : reset Not used Not used Not used Not used Not used Not used Not used Not used NTSC/PAL select switch input (Open) Not used Serial data output (IC101) A/D converter ground Serial data latch output (IC101)
Description
A/D converter reference voltage input (Connected to +5V) A/D converter +5V power supply Not used
50
· IC505 MPEG VIDEO/AUDIO DECODER, VIDEO SIGNAL PROCESSOR (CL680T-D1) (VIDEO Board (2/3))
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 NC VSS CD-BCK CD-DATA CD-LRCK CD-C2PO NC NC NC MD0 MD1 MD2 MD3 MD4 MD5 VSS MD6 VDD3 MD7 VSS MD8 VDD3 MD9 MD10 MD11 MD12 MD13 MD14 MD15 NC NC NC NC NC NC NC MCE MWE VSS CAS VDD3 RAS0 RAS1 MA10 MA9 Pin Name I/O I I I I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O O O O O O Not used Ground CD Decode bit clock CD Decode data CD Decode Left or Right channel selection clock CD Decode C2 error data Not used Not used Not used Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Ground Data bus between Microcode ROM/D-RAM and CL680 +3.3V Power supply Data bus between Microcode ROM/D-RAM and CL680 Ground Data bus between Microcode ROM/D-RAM and CL680 +3.3V Power supply Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Data bus between Microcode ROM/D-RAM and CL680 Not used Not used Not used Not used Not used Not used Not used Chip enable signal to Microcode ROM Write enable signal to D-RAM Ground Column address strove : Latch the column address to D-RAM +3.3V power supply Row address strove : Latch row address to D-RAM Not used Address data from CL680 to Microcode ROM Address data from CL680 to Microcode ROM Description
51
Pin No. 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 81 82 83 84 85 86 87 88 89 90 MA8 VSS MA7 VDD3 MA6 MA5 MA4 VSS MA3 VDD3 MA2 MA1 MA0 PGIO7 RESET
Pin Name
I/O O O O O O O O O O I/O I I O O I O O I I I I I I/O I/O I/O
Description Address data from CL680 to Microcode ROM/D-RAM Ground Address data from CL680 to Microcode ROM/D-RAM +3.3V Power supply Address data from CL680 to Microcode ROM/D-RAM Address data from CL680 to Microcode ROM/D-RAM Address data from CL680 to Microcode ROM/D-RAM Ground Address data from CL680 to Microcode ROM/D-RAM +3.3V Power supply Address data from CL680 to Microcode ROM/D-RAM Address data from CL680 to Microcode ROM/D-RAM Address data from CL680 to Microcode ROM/D-RAM Not used Reset signal input from the host MPU Fix the maxium input voltage each input pin and I/O pin Not used Not used Not used Ground +3.3V Power supply Not used Ground Luminance signal out +3.3V Power supply Ground Fix the video signal output level Reference voltage (+1.235V) +3.3V Power supply Chrominance signal out Ground GCK selection "H"; Internal, "L"; External DA-XCK selection (1) DA-XCK selection (2) Ground Selection the operation clock 42.336MHz +3.3V Power supply Not used Not used Ground Main reference clock input (16.9344MHz=384fs) +3.3V Not used Not used Not used
VDDMAX-IN NC NC NC AGND DAC AVDD DAC COMPOS OUT AGND DAC Y-OUT AVDD DAC A