Sony HCD-GTX66 / HCD-GTX77 / HCD-GTX77BP / MHC-GTX66 / MHC-GTX77 / MHC-GTX77BP Service Manual ▷ View online
5
TABLE OF CONTENTS
HCD-GTX66/GTX77/GTX77BP
1. GENERAL
Guide to parts and controls ...................................................... 6
2. DISASSEMBLY
2-1. Case (Top) ......................................................................... 13
2-2. Loading Panel .................................................................... 13
2-3. Tuner Pack ......................................................................... 14
2-4. CD Block Section .............................................................. 14
2-5. Front Panel Section ........................................................... 15
2-6. Tape Mechanism Deck, Mic Board,
USB Connector Board ....................................................... 15
2-7. Panel Board, Function Board, Jog Board .......................... 16
2-8. CD-SW Board ................................................................... 16
2-9. Cover (CDM) .................................................................... 17
2-10. Back Panel Section ............................................................ 17
2-11. Power Board Section ......................................................... 18
2-12. Main Board ....................................................................... 18
2-13. Subwoofer Board, Power Board ........................................ 19
2-14. Power Transformer (T1200) .............................................. 19
2-15. BD91 Board ...................................................................... 20
2-16. Driver Board, SW Board, USB Board .............................. 20
2-17. Optical Pick-up ................................................................. 21
2-18. Sensor Board ..................................................................... 21
2-19. Motor (TB) Board ............................................................. 22
2-20. Motor (LD) Board ............................................................. 22
2-2. Loading Panel .................................................................... 13
2-3. Tuner Pack ......................................................................... 14
2-4. CD Block Section .............................................................. 14
2-5. Front Panel Section ........................................................... 15
2-6. Tape Mechanism Deck, Mic Board,
USB Connector Board ....................................................... 15
2-7. Panel Board, Function Board, Jog Board .......................... 16
2-8. CD-SW Board ................................................................... 16
2-9. Cover (CDM) .................................................................... 17
2-10. Back Panel Section ............................................................ 17
2-11. Power Board Section ......................................................... 18
2-12. Main Board ....................................................................... 18
2-13. Subwoofer Board, Power Board ........................................ 19
2-14. Power Transformer (T1200) .............................................. 19
2-15. BD91 Board ...................................................................... 20
2-16. Driver Board, SW Board, USB Board .............................. 20
2-17. Optical Pick-up ................................................................. 21
2-18. Sensor Board ..................................................................... 21
2-19. Motor (TB) Board ............................................................. 22
2-20. Motor (LD) Board ............................................................. 22
3. TEST MODE
..................................................................... 23
4. MECHANICAL ADJUSTMENTS
............................... 27
5. ELECTRICAL ADJUSTMENTS
................................. 28
6. DIAGRAMS
6-1. Block Diagram — RF/Servo Section — ........................... 31
6-2. Block Diagram — Tape/Tuner Section — ........................ 32
6-3. Block Diagram — Main Section — .................................. 33
6-4. Block Diagram — USB Section — .................................. 34
6-5. Block Diagram — AMP Section — .................................. 35
6-6. Block Diagram — Display/Power Section — .................. 36
6-2. Block Diagram — Tape/Tuner Section — ........................ 32
6-3. Block Diagram — Main Section — .................................. 33
6-4. Block Diagram — USB Section — .................................. 34
6-5. Block Diagram — AMP Section — .................................. 35
6-6. Block Diagram — Display/Power Section — .................. 36
6-7. Circuit Boards Location .................................................... 37
6-8. Printed Wiring Board — BD91 Section — ....................... 40
6-9. Schematic Diagram — BD91 Section — .......................... 41
6-10. Printed Wiring Boards — Driver Section — ..................... 42
6-11. Schematic Diagram — Driver Section — ......................... 43
6-12. Schematic Diagram — Main Section (1/4) — .................. 44
6-13. Schematic Diagram — Main Section (2/4) — .................. 45
6-14. Schematic Diagram — Main Section (3/4) — .................. 46
6-15. Schematic Diagram — Main Section (4/4) — .................. 47
6-16. Printed Wiring Board — Main Section — ........................ 48
6-17. Printed Wiring Board — USB Connector Section — ....... 49
6-18. Schematic Diagram — USB Connector Section — .......... 49
6-19. Printed Wiring Board — USB Section — ......................... 50
6-20. Schematic Diagram — USB Section — ........................... 51
6-21. Printed Wiring Board — Effector Section — ................... 52
6-22. Schematic Diagram — Effector Section — ...................... 53
6-23. Printed Wiring Board — Panel Section — ........................ 54
6-24. Schematic Diagram — Panel Section — .......................... 55
6-25. Printed Wiring Boards — Function Section — ................. 56
6-26. Schematic Diagram — Function Section — ..................... 57
6-27. Printed Wiring Board — Power Amp Section — ............. 58
6-28. Schematic Diagram — Power Amp Section — ................ 59
6-29. Printed Wiring Boards — Trans Section — ...................... 60
6-30. Schematic Diagram — Trans Section — .......................... 61
6-8. Printed Wiring Board — BD91 Section — ....................... 40
6-9. Schematic Diagram — BD91 Section — .......................... 41
6-10. Printed Wiring Boards — Driver Section — ..................... 42
6-11. Schematic Diagram — Driver Section — ......................... 43
6-12. Schematic Diagram — Main Section (1/4) — .................. 44
6-13. Schematic Diagram — Main Section (2/4) — .................. 45
6-14. Schematic Diagram — Main Section (3/4) — .................. 46
6-15. Schematic Diagram — Main Section (4/4) — .................. 47
6-16. Printed Wiring Board — Main Section — ........................ 48
6-17. Printed Wiring Board — USB Connector Section — ....... 49
6-18. Schematic Diagram — USB Connector Section — .......... 49
6-19. Printed Wiring Board — USB Section — ......................... 50
6-20. Schematic Diagram — USB Section — ........................... 51
6-21. Printed Wiring Board — Effector Section — ................... 52
6-22. Schematic Diagram — Effector Section — ...................... 53
6-23. Printed Wiring Board — Panel Section — ........................ 54
6-24. Schematic Diagram — Panel Section — .......................... 55
6-25. Printed Wiring Boards — Function Section — ................. 56
6-26. Schematic Diagram — Function Section — ..................... 57
6-27. Printed Wiring Board — Power Amp Section — ............. 58
6-28. Schematic Diagram — Power Amp Section — ................ 59
6-29. Printed Wiring Boards — Trans Section — ...................... 60
6-30. Schematic Diagram — Trans Section — .......................... 61
7. EXPLODED VIEWS
7-1. Main Section ..................................................................... 75
7-2. Front Panel Section (1) ...................................................... 76
7-3. Front Panel Section (2) ...................................................... 77
7-4. Front Panel Section (3) ...................................................... 78
7-5. Chassis Section ................................................................. 79
7-6. CD Mechanism Section (1) ............................................... 80
7-7. CD Mechanism Section (2) ............................................... 81
7-2. Front Panel Section (1) ...................................................... 76
7-3. Front Panel Section (2) ...................................................... 77
7-4. Front Panel Section (3) ...................................................... 78
7-5. Chassis Section ................................................................. 79
7-6. CD Mechanism Section (1) ............................................... 80
7-7. CD Mechanism Section (2) ............................................... 81
8. ELECTRICAL PARTS LIST
........................................ 82
6
HCD-GTX66/GTX77/GTX77BP
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
6
GB
Guide to parts and controls
This manual mainly explains operations using the buttons on the unit, but the same
operations can also be performed using the buttons on the remote having the same or
similar names.
operations can also be performed using the buttons on the remote having the same or
similar names.
Unit
– Front view
– Top view
qd
qf
qg
qh
1 2 3 4
5
6
qj
qk
ql
w;
wa
ws
wd
wf
7
8
9
q;
qa
qs
wkwj
wg
wh
7
HCD-GTX66/GTX77/GTX77BP
7
GB
Guide
to par
ts
and
contr
ols
1
FLANGER (pages 35, 43, 48)
DELAY (pages 35, 43, 48)
CHORUS (pages 36, 43, 48)
SOUND FLASH (page 35)
DELAY (pages 35, 43, 48)
CHORUS (pages 36, 43, 48)
SOUND FLASH (page 35)
Press to create a party atmosphere.
B
Display (pages 9, 38, 39, 48)
C
SURROUND SPEAKER MODE
(MHC-GTX88 only) (page 34)
(MHC-GTX88 only) (page 34)
Press to select the sound system.
SURROUND
(MHC-GTX77/MHC-GTX66 only)
(page 34)
(MHC-GTX77/MHC-GTX66 only)
(page 34)
Press to select the surround effect.
D
Disc tray (pages 9, 17, 44, 48)
E
AMP MENU (page 38)
Press to change the spectrum
analyser display or to adjust the
brightness of the display.
analyser display or to adjust the
brightness of the display.
F
RETURN (pages 17, 25)
Press to return to the parent folder.
G NX
(play/pause) (pages 17, 22,
24, 30, 44)
Press to start or pause playback.
x
(stop) (pages 17, 23, 25, 28,
29, 30, 32, 44)
Press to stop playback or recording.
./>
(go forward/go
backward) (pages 17, 20, 23, 25,
27, 31, 48)
27, 31, 48)
Press to select a track.
TUNING +/– (pages 28, 29)
Press to tune in a radio station.
+/– (pages 17, 20, 23, 25, 27,
31)
Press to select a folder.
m/M
(rewind/fast forward)
(page 30)
Press to fast forward or rewind.
H
CD-
SYNC/REC 1 (page 22)
Press to record from a disc onto the
connected optional USB device
(Digital music player or USB storage
media).
connected optional USB device
(Digital music player or USB storage
media).
CD-TAPE SYNC (page 31)
TAPE REC PAUSE/START
(page 31)
TAPE REC PAUSE/START
(page 31)
Press to record onto a tape.
I
PUSH OPEN/CLOSE
Z
(Deck B)
(page 30)
Press to insert or eject a tape.
Deck B (pages 30, 31, 37, 48)
J
ENTER (pages 23, 29, 33, 48)
Press to enter the selection.
K
ERASE (page 23)
Press to erase MP3 audio tracks or
folders on the connected optional
USB device (Digital music player or
USB storage media).
folders on the connected optional
USB device (Digital music player or
USB storage media).
L
MASTER VOLUME (pages 17,
24, 39, 43)
24, 39, 43)
Turn to adjust the volume.
M
MIC (jack) (pages 36, 43, 52)
Connect an optional microphone.
MIC LEVEL (pages 32, 36, 43)
Turn to adjust the microphone
volume.
volume.
USB
Continued
l
8
HCD-GTX66/GTX77/GTX77BP
8
GB
N
REC/ERASE (indicator)
(pages 23, 25)
(pages 23, 25)
Lights up when recording from a disc
onto the connected optional USB
device (Digital music player or USB
storage media).
Lights up when erasing MP3 audio
tracks from the connected optional
USB device (Digital music player or
USB storage media).
onto the connected optional USB
device (Digital music player or USB
storage media).
Lights up when erasing MP3 audio
tracks from the connected optional
USB device (Digital music player or
USB storage media).
O
(USB) port (pages 22, 23,
24, 41, 52)
Connect an optional USB device
(Digital music player or USB storage
media).
(Digital music player or USB storage
media).
P
PHONES (jack) (pages 43, 52)
Connect the headphones.
Q
Power illuminator (pages 35, 39)
R
PRESET EQ (page 33)
Press to select a preset sound effect.
S Z
PUSH OPEN/CLOSE (Deck A)
(page 30)
Press to insert or eject a tape.
Deck A (pages 30, 48)
T
Function buttons:
CD (pages 14, 17, 22, 29, 31, 38)
TUNER/BAND (pages 29, 38)
TAPE A/B (pages 30, 38)
AUDIO (pages 38, 41)
VIDEO (pages 38, 41)
CD (pages 14, 17, 22, 29, 31, 38)
TUNER/BAND (pages 29, 38)
TAPE A/B (pages 30, 38)
AUDIO (pages 38, 41)
VIDEO (pages 38, 41)
(
pages 23, 24, 26, 38
)
Press to select a function.
U "/1
(on/standby) (pages 13, 14,
29, 43, 48)
Press to turn the system on or off.
V
GROOVE (page 33)
Press to reinforce the bass.
W
IR Receptor (page 43)
X
EQ BAND/MEMORY (page 33)
Press to select a frequency band
when adjusting the graphic
equalizer.
when adjusting the graphic
equalizer.
Y
DISPLAY (pages 38, 39, 40)
Press to change the information in
the display.
the display.
Z
OPERATION DIAL (pages 17,
25, 33, 35, 38)
25, 33, 35, 38)
Turn to select a track or folder.
Turn to select a setting.
Turn to select a setting.
wj
ILLUMINATION (page 39)
Press to change the power
illuminator pattern.
illuminator pattern.
wk
DISC SKIP/EX-CHANGE
(pages 14, 17, 18, 20)
(pages 14, 17, 18, 20)
Press to skip a disc.
Press to exchange other discs during
playback.
Press to exchange other discs during
playback.
Z
OPEN/CLOSE (pages 14, 17,
44)
Press to load or eject a disc.
DISC 1 ~ 3 (pages 18, 20)
Press to select a disc.
Press to switch to CD function from
other function.
Press to switch to CD function from
other function.
USB
Click on the first or last page to see other HCD-GTX66 / HCD-GTX77 / HCD-GTX77BP / MHC-GTX66 / MHC-GTX77 / MHC-GTX77BP service manuals if exist.