Read Sony HCD-XB88AVK / HCD-XB88K / LBT-XB88AVK / LBT-XB88KS Service Manual online
– 1 –
MICROFILM
HCD-XB88AVK/XB88K
E Model
SPECIFICATIONS
Photo: HCD-XB88AVK
SERVICE MANUAL
COMPACT DISC DECK RECEIVER
— Continued on next page —
HCD-XB88AVK/XB88K is the
tuner, deck, CD and amplifier
section in LBT-XB88AVK/XB88K.
tuner, deck, CD and amplifier
section in LBT-XB88AVK/XB88K.
Model Name Using Similar Mechanism
HCD-D670AV/N555AV
CD Mechanism Type
CDM37L-5BD29AL
CDM37LH-5BD29AL
Base Unit Type
BU-5BD29AL
Optical Pick-up Type
KSS-213D/Q-NP
Model Name Using Similar Mechanism
HCD-D670AV/N555AV
Tape Transport Mechanism Type
TCM-220WR2
CD
SECTION
TAPE
DECK
SECTION
– 2 –
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperatur e 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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
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
repain parts.
The flexible board is easily damaged and should be handled with
care.
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
repain parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output three times.
that the S curve waveform is output three times.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE
WITH MARK
!
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.
MODEL IDENTIFICATION
— BACK PANEL —
— BACK PANEL —
4-996-861-1π
4-996-861-6π
4-996-861-7π
4-996-861-9π
4-996-861-6π
4-996-861-7π
4-996-861-9π
XR88AVK : SP, MY model
XR88AVK : E, IA model
XR88AVK : EA model
XR88K : TH model
XR88AVK : E, IA model
XR88AVK : EA model
XR88K : TH model
PARTS No.
MODEL
• Abbreviation
EA
: Saudi Arabia model
SP
: Singapore model
MY : Malaysia model
TH
TH
: Thai model
IA
: Indonesian model
The following
caution label is
located inside of
the unit.
caution label is
located inside of
the unit.
Parts No.
– 3 –
TABLE OF CONTENTS
1. GENERAL
.......................................................................... 4
2. DISASSEMBLY
2-1. Front Panel ........................................................................... 6
2-2. Main Board ........................................................................... 6
2-3. Tape Mechanism Deck .......................................................... 7
2-4. Cassette Lid Assembly .......................................................... 7
2-5. CD Lid Assembly .................................................................. 8
2-6. CD Mechanism Deck ............................................................ 8
2-7. Base Unit .............................................................................. 8
2-8. Disc Table ............................................................................. 9
2-2. Main Board ........................................................................... 6
2-3. Tape Mechanism Deck .......................................................... 7
2-4. Cassette Lid Assembly .......................................................... 7
2-5. CD Lid Assembly .................................................................. 8
2-6. CD Mechanism Deck ............................................................ 8
2-7. Base Unit .............................................................................. 8
2-8. Disc Table ............................................................................. 9
3. SERVICE MODE
............................................................ 10
4. MECHANICAL ADJUSTMENTS
..........................
12
5. ELECTRICAL ADJUSTMENTS
............................... 12
6. DIAGRAMS
6-1. Circuit Boards Location ...................................................... 16
6-2. Block Diagrams
6-2. Block Diagrams
• CD Section ....................................................................... 17
• Deck Section .................................................................... 19
• Main Section .................................................................... 21
• Power Section .................................................................. 23
• Key Con Section .............................................................. 25
• Deck Section .................................................................... 19
• Main Section .................................................................... 21
• Power Section .................................................................. 23
• Key Con Section .............................................................. 25
6-3. Schematic Diagram – Key Con Section – ........................... 29
6-4. Printed Wiring Board – Key Con Section – ........................ 30
6-5. Printed Wiring Board – CD Section – ................................. 31
6-6. Schematic Diagram – CD Section – ................................... 33
6-7. Printed Wiring Board – Main Section – .............................. 35
6-8. Schematic Diagram – Main (1/5) Section – ........................ 37
6-9. Schematic Diagram – Main (2/5) Section – ........................ 39
6-10. Schematic Diagram – Main (3/5) Section – ..................... 41
6-11. Schematic Diagram – Main (4/5) Section – ..................... 43
6-12. Schematic Diagram – Main (5/5) Section – ..................... 45
6-13. Printed Wiring Board – Deck Section – ........................... 47
6-14. Schematic Diagram – Deck Section – .............................. 49
6-15. Printed Wiring Board – Power Section – ......................... 51
6-16. Schematic Diagram – Power Section – ............................ 53
6-17. Schematic Diagram – Panel Section – ............................. 55
6-18. Printed Wiring Board – Panel Section – ........................... 57
6-19. Printed Wiring Board – TC/CD Panel-1 Section – ........... 59
6-20. Schematic Diagram – TC/CD Panel-1 Section – ............. 61
6-21. Schematic Diagram – HP/Mic Section – .......................... 63
6-22. Printed Wiring Board – HP/Mic Section – ....................... 65
6-23. Printed Wiring Board – CD Motor Section – ................... 67
6-24. Schematic Diagram – CD Motor Section – ...................... 69
6-25. Printed Wiring Board – Trans Section – ........................... 71
6-26. Schematic Diagram – Trans Section – ............................. 73
6-27. Printed Wiring Board – Surround Section – ..................... 75
6-28. Schematic Diagram – Surround Section – ....................... 76
6-29. IC Block Diagrams ........................................................... 77
6-30. IC Pin Functions ............................................................... 82
6-4. Printed Wiring Board – Key Con Section – ........................ 30
6-5. Printed Wiring Board – CD Section – ................................. 31
6-6. Schematic Diagram – CD Section – ................................... 33
6-7. Printed Wiring Board – Main Section – .............................. 35
6-8. Schematic Diagram – Main (1/5) Section – ........................ 37
6-9. Schematic Diagram – Main (2/5) Section – ........................ 39
6-10. Schematic Diagram – Main (3/5) Section – ..................... 41
6-11. Schematic Diagram – Main (4/5) Section – ..................... 43
6-12. Schematic Diagram – Main (5/5) Section – ..................... 45
6-13. Printed Wiring Board – Deck Section – ........................... 47
6-14. Schematic Diagram – Deck Section – .............................. 49
6-15. Printed Wiring Board – Power Section – ......................... 51
6-16. Schematic Diagram – Power Section – ............................ 53
6-17. Schematic Diagram – Panel Section – ............................. 55
6-18. Printed Wiring Board – Panel Section – ........................... 57
6-19. Printed Wiring Board – TC/CD Panel-1 Section – ........... 59
6-20. Schematic Diagram – TC/CD Panel-1 Section – ............. 61
6-21. Schematic Diagram – HP/Mic Section – .......................... 63
6-22. Printed Wiring Board – HP/Mic Section – ....................... 65
6-23. Printed Wiring Board – CD Motor Section – ................... 67
6-24. Schematic Diagram – CD Motor Section – ...................... 69
6-25. Printed Wiring Board – Trans Section – ........................... 71
6-26. Schematic Diagram – Trans Section – ............................. 73
6-27. Printed Wiring Board – Surround Section – ..................... 75
6-28. Schematic Diagram – Surround Section – ....................... 76
6-29. IC Block Diagrams ........................................................... 77
6-30. IC Pin Functions ............................................................... 82
7. EXPLODED VIEWS
7-1. Case and Back Panel Section .............................................. 90
7-2. Front Panel Section 1 .......................................................... 91
7-3. Front Panel Section 2 .......................................................... 92
7-4. Chassis Section ................................................................... 93
7-5. TC Mechanism Section-1 (TCM-220WR2) ....................... 94
7-6. TC Mechanism Section-2 (TCM-220WR2) ....................... 95
7-7. TC Mechanism Section-3 (TCM-220WR2) ....................... 96
7-8. CD Mechanism Section
7-2. Front Panel Section 1 .......................................................... 91
7-3. Front Panel Section 2 .......................................................... 92
7-4. Chassis Section ................................................................... 93
7-5. TC Mechanism Section-1 (TCM-220WR2) ....................... 94
7-6. TC Mechanism Section-2 (TCM-220WR2) ....................... 95
7-7. TC Mechanism Section-3 (TCM-220WR2) ....................... 96
7-8. CD Mechanism Section
(CDM37L-5BD29AL/CMD37LH-5BD29AL) .................. 97
7-9. Base Unit Section (BU-5BD29AL) .................................... 98
8. ELECTRICAL PARTS LIST
........................................ 99
– 4 –
Front Panel
1
7 8
9
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SECTION 1
GENERAL
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