Sony MHC-VX888 (serv.man2) Service Manual ▷ View online
2
HCD-VX888
General
Power requirements
Australian models:
Australian models:
230 – 240 V AC,
50/60 Hz
50/60 Hz
Mexican models:
120 V AC, 60 Hz
Thailand models:
220 V AC, 50/60 Hz
Other models:
120 V, 220 V or
230 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
230 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
Power consumption
250 watts
Dimensions (w/h/d)
Approx. 280 x 360 x 425
mm
mm
Mass
Approx. 10.5 kg
Design and specifications are subject to change
without notice.
without notice.
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 PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
of emitting radiation exceeding the limit for
Class 1.
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 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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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.
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
MODEL IDENTIFICATION
— BACK PANEL —
MODEL
E3, EA, SP2/6, IA models
E91 model
PARTS No.
4-232-028-2
[]
4-232-028-4
[]
• Abbreviation
E3
: 240 V AC Area in E model
E91
: 220 V AC Area in E model
EA
: Saudi Arabia model
SP2/6 : Malaysia, singapore model
IA
IA
: Indonesia model
PARTS No.
3
HCD-VX888
1.
GENERAL
...................................................................
4
2.
DISASSEMBLY
2-1. Disassembly Flow ...........................................................
7
2-2. Case (Top) .......................................................................
8
2-3. Loading Panel ..................................................................
8
2-4. CD Mechanism Deck (CDM58E-30BD61A) ................
9
2-5. Front Panel Section .........................................................
9
2-6. Tape Mechanism Deck (TCM-230AWR41) ................... 10
2-7. Back Panel Section .......................................................... 10
2-8. Main Board ...................................................................... 11
2-9. LEAF SW Board, HEAD (A) Board,
2-7. Back Panel Section .......................................................... 10
2-8. Main Board ...................................................................... 11
2-9. LEAF SW Board, HEAD (A) Board,
HEAD (B) Board ............................................................ 11
2-10. Base Unit (BU-30BD61A) .............................................. 12
2-11. VIDEO Board, DRIVER Board ..................................... 12
2-12. MOTOR Board, ADDRESS SENSOR Board ................ 13
2-11. VIDEO Board, DRIVER Board ..................................... 12
2-12. MOTOR Board, ADDRESS SENSOR Board ................ 13
3.
TEST MODE
............................................................... 14
4.
MECHANICAL ADJUSTMENTS
........................ 17
5.
ELECTRICAL ADJUSTMENTS
.......................... 17
6.
DIAGRAMS
6-1. Block Diagram – TUNER/CD Section – ....................... 23
6-2. Block Diagram – MAIN Section – ................................ 24
6-3. Block Diagram – DISPLAY/POWER Section – ........... 25
6-4. Block Diagram – VIDEO CD Section – ........................ 26
6-5. Note for Printed Wiring Boards and
6-2. Block Diagram – MAIN Section – ................................ 24
6-3. Block Diagram – DISPLAY/POWER Section – ........... 25
6-4. Block Diagram – VIDEO CD Section – ........................ 26
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 27
6-6. Schematic Diagram – BD Board – ................................ 28
6-7. Printed Wiring Board – BD Board – ............................. 29
6-8. Schematic Diagram – MAIN Board (1/4) – .................. 30
6-9. Schematic Diagram – MAIN Board (2/4) – .................. 31
6-10. Schematic Diagram – MAIN (3/4)/HEAD Board – ...... 32
6-11. Schematic Diagram – MAIN Board (4/4) – .................. 33
6-12. Printed Wiring Board – MAIN Board – ........................ 34
6-13. Schematic Diagram – VIDEO SWITCH Board – ......... 35
6-14. Printed Wiring Boards – HEAD (A)/(B) Board – ......... 35
6-15. Printed Wiring Board – VIDEO SWITCH Board – ...... 35
6-16. Schematic Diagram
6-7. Printed Wiring Board – BD Board – ............................. 29
6-8. Schematic Diagram – MAIN Board (1/4) – .................. 30
6-9. Schematic Diagram – MAIN Board (2/4) – .................. 31
6-10. Schematic Diagram – MAIN (3/4)/HEAD Board – ...... 32
6-11. Schematic Diagram – MAIN Board (4/4) – .................. 33
6-12. Printed Wiring Board – MAIN Board – ........................ 34
6-13. Schematic Diagram – VIDEO SWITCH Board – ......... 35
6-14. Printed Wiring Boards – HEAD (A)/(B) Board – ......... 35
6-15. Printed Wiring Board – VIDEO SWITCH Board – ...... 35
6-16. Schematic Diagram
– POWER AMP/SENSOR Board – ................................ 36
6-17. Printed Wiring Boards
– POWER AMP/SENSOR Board – ................................ 37
6-18. Schematic Diagram – PANEL Board – .......................... 38
6-19. Printed Wiring Board – PANEL Board – ....................... 39
6-20. Schematic Diagram
6-19. Printed Wiring Board – PANEL Board – ....................... 39
6-20. Schematic Diagram
– CD SWITCH/PAD SWITCH Board – ........................ 40
6-21. Printed Wiring Boards
– CD SWITCH/PAD SWITCH Board – ........................ 41
6-22. Schematic Diagram – LEAF SW Board – ..................... 42
6-23. Printed Wiring Board – LEAF SW Board – .................. 42
6-24. Schematic Diagram
6-23. Printed Wiring Board – LEAF SW Board – .................. 42
6-24. Schematic Diagram
– ADDRESS SENSOR/DRIVER/MOTOR Board – ...... 43
6-25. Printed Wiring Boards
– ADDRESS SENSOR/DRIVER/MOTOR Board – ...... 43
6-26. Schematic Diagram – VIDEO Board (1/3) – ................ 44
6-27. Schematic Diagram – VIDEO Board (2/3) – ................ 45
6-28. Schematic Diagram – VIDEO Board (3/3) – ................ 46
6-29. Printed Wiring Board – VIDEO Board – ....................... 47
6-30. Schematic Diagram
6-27. Schematic Diagram – VIDEO Board (2/3) – ................ 45
6-28. Schematic Diagram – VIDEO Board (3/3) – ................ 46
6-29. Printed Wiring Board – VIDEO Board – ....................... 47
6-30. Schematic Diagram
– MAIN TRANS/SUB TRANS Board – ....................... 48
6-31. Printed Wiring Boards
– MAIN TRANS/SUB TRANS Board – ........................ 49
6-32. IC Pin Function Description ........................................... 55
TABLE OF CONTENTS
7.
EXPLODED VIEWS
7-1. Cabinet Section ............................................................... 60
7-2. Front Panel Section ......................................................... 61
7-3. Main Board Section ........................................................ 62
7-4. CD Mechanism Deck Section (CDM58E-30BD61A) ... 63
7-5. Base Unit Section (BU-30BD61A) ................................ 64
7-6. Tape Mechanism Deck Section-1 (TCM-230AWR41) .... 65
7-7. Tape Mechanism Deck Section-2 (TCM-230AWR41) .... 66
7-2. Front Panel Section ......................................................... 61
7-3. Main Board Section ........................................................ 62
7-4. CD Mechanism Deck Section (CDM58E-30BD61A) ... 63
7-5. Base Unit Section (BU-30BD61A) ................................ 64
7-6. Tape Mechanism Deck Section-1 (TCM-230AWR41) .... 65
7-7. Tape Mechanism Deck Section-2 (TCM-230AWR41) .... 66
8.
ELECTRICAL PARTS LIST
.................................. 67
4
HCD-VX888
SECTION 1
GENERAL
This section is extracted from
instruction manual.
instruction manual.
4
Parts Identification
Main unit
The items are arranged in alphabetical order. Refer to the pages indicated in parentheses ( ) for
details.
details.
1
2
3
4
5
6
7
8
9
0
L
K
M
N
O
P
Q
R
T
U
V
W
S
X
wg
wh
wj
wk
wl
ea es ed ef
rd
rs
ra r; el
eg
ej
eh
ek
rf
e;
CD 6 (9, 11~14, 20, 22)
CD SYNC HI-DUB qj (21, 22)
CINEMA SPACE el (25)
CD SYNC HI-DUB qj (21, 22)
CINEMA SPACE el (25)
DECK A Z wf (20, 21)
DECK B Z qd (20, 21)
DIRECTION ed (20~22, 27)
DISC 1~3 2 (11~14, 22)
DISC SKIP/EX-CHANGE 4
DECK B Z qd (20, 21)
DIRECTION ed (20~22, 27)
DISC 1~3 2 (11~14, 22)
DISC SKIP/EX-CHANGE 4
(11~14)
Disc tray 3 (11)
DISPLAY ea (10, 15, 32)
DOLBY NR ef (20~22)
DISPLAY ea (10, 15, 32)
DOLBY NR ef (20~22)
ECHO LEVEL wj (26)
EDIT ed (21)
EFFECT ON/OFF rd (24, 26)
ENTER ej (10, 12, 14, 17, 18, 23,
EDIT ed (21)
EFFECT ON/OFF rd (24, 26)
ENTER ej (10, 12, 14, 17, 18, 23,
25, 28, 33)
FM MODE ef (19, 33)
GAME e; (29)
GAME EQ rs (8, 24, 29)
GROOVE ra (24)
GAME EQ rs (8, 24, 29)
GROOVE ra (24)
KARAOKE PON wl (26)
MD (VIDEO) 9 (29, 32)
MIC 1/2 wg (26)
MIC LEVEL wh (26)
MOVIE EQ eh (8, 24, 29)
MUSIC EQ rf (8, 24, 29)
MIC 1/2 wg (26)
MIC LEVEL wh (26)
MOVIE EQ eh (8, 24, 29)
MUSIC EQ rf (8, 24, 29)
P FILE ek (25)
PICTURE EFFECT wd (17)
PHONES jack qs
PICTURE EFFECT wd (17)
PHONES jack qs
: Connect the headphones
PLAY MODE eg (11, 13, 22, 33)
REC PAUSE/START qg (21, 22,
27)
REPEAT ef (12, 14)
SHUTTLE qa (12, 13)
SPECTRUM es (26)
SURROUND SPEAKER MODE
SPECTRUM es (26)
SURROUND SPEAKER MODE
wk (24)
TAPE A/B 8 (20, 21, 27)
TUNER/BAND 7 (18, 19, 21)
TUNER MEMORY eg (18)
TUNER/BAND 7 (18, 19, 21)
TUNER MEMORY eg (18)
VOLUME control q; (28)
: Adjusts the volume.
BUTTON DESCRIPTIONS
@/1 (power) 1 (8, 9, 19, 29, 32,
33)
Z OPEN/CLOSE (disc tray)
5 (11, 12, 14)
x (stop) w; (11~13, 16, 17, 20,
21, 33)
nN (play) ql (11~14, 16, 21,
27)
> (go forward) qh (11~14,
16~21)
X (pause) qk (11, 13, 20, 21)
. (go back) wa (11~14, 16~21)
m/– (rewind) ws (12, 13,
. (go back) wa (11~14, 16~21)
m/– (rewind) ws (12, 13,
17~21, 33)
M/+ (fast forward) qf (12, 13,
17~21)
v/V/b/B (cursor) r; (10, 22, 25,
28)
5
HCD-VX888
6
Remote Control
The items are arranged in alphabetical order. Refer to the pages indicated in parentheses ( ) for
details.
details.
4
5
6
1
2
3
7
8
9
A B C D E
K
7
8
9
0
L
P
M
N
N
Q
T
O
R
S
S
U
V
W
X
Y
Z
6
wj
wk
wl
e;
ea
es
ed
ef
eg
eh
ra
r
s
r;
el
ej
ek
CD ra (9, 11~14, 20, 22)
CINEMA SPACE ql (25)
CLEAR ed (14, 16)
CLOCK/TIMER SELECT 2
CINEMA SPACE ql (25)
CLEAR ed (14, 16)
CLOCK/TIMER SELECT 2
(23, 28)
CLOCK/TIMER SET 3 (10, 22,
28)
D.SKIP qs (11~14)
DISPLAY ej (10, 15, 32)
DISPLAY ej (10, 15, 32)
EFFECT ON/OFF qk (24, 26)
ENTER ws (10, 12, 14, 17, 18,
ENTER ws (10, 12, 14, 17, 18,
23, 25, 28)
GAME el (29)
GAME EQ wg (8, 24, 29)
GAME EQ wg (8, 24, 29)
KARAOKE PON ef (26)
KEY CONTROL qj (26)
KEY CONTROL qj (26)
MD (VIDEO) ek (29, 32)
MOVIE EQ wa (8, 24, 29)
MUSIC EQ wh (8, 24, 29)
MUSIC EQ wh (8, 24, 29)
NEXT ea (12, 16, 17)
Numeric buttons eh (13, 16)
Numeric buttons eh (13, 16)
ON SCREEN qa (15)
PREV ea (12, 15, 16)
PICTURE EFFECT wj (17)
P FILE wd (25)
PICTURE EFFECT wj (17)
P FILE wd (25)
REPEAT 9 (12, 14)
RETURN O qg (12)
RETURN O qg (12)
SLEEP 1 (27)
SURROUND SPEAKER MODE
SURROUND SPEAKER MODE
wk (24)
SPECIAL MENU 0 (16, 17)
SPECTRUM eg (26)
SELECT qd (12)
SPECTRUM eg (26)
SELECT qd (12)
TAPE A/B rs (20, 21, 27)
TUNER/BAND r; (18, 19, 21)
TV @/1 4 (9)
TV VIDEO 8 (9)
TV VOL +/– 6 (9)
TV CH +/– 7 (9)
TUNER/BAND r; (18, 19, 21)
TV @/1 4 (9)
TV VIDEO 8 (9)
TV VOL +/– 6 (9)
TV CH +/– 7 (9)
VOL +/– w; (28)
: Adjusts the volume.
BUTTON DESCRIPTIONS
@/1 (power) 5 (8, 9, 19, 29, 32,
33)
nN (play) qd (11~14, 16, 21,
27)
X (pause) qf (11, 13, 20, 21)
x (stop) qh (11~13, 16, 17, 20,
x (stop) qh (11~13, 16, 17, 20,
21, 33)
. (go back)/PRESET – e;
(11~14, 16~21)
> (go forward)/PRESET + e;
(11~14, 16~21)
m (rewind)/TUNING – wl (12,
13, 17~21, 33)
M (fast forward)/TUNING + wl
(12, 13, 17~21)
v/V/b/B (cursor) wf (10, 22, 25,
28)
