Sony DAV-DZ280 / DAV-DZ680 / DAV-HDZ284 / DAV-HDZ485 / HCD-DZ280 / HCD-DZ680 / HCD-HDZ284 / HCD-HDZ485 Service Manual ▷ View online
HCD-DZ280/DZ680/HDZ284/HDZ485
9
1.
SERVICING NOTES
............................................. 10
2. GENERAL
.................................................................. 12
3. DISASSEMBLY
3-1. Case ................................................................................ 17
3-2. Front Panel Section ......................................................... 17
3-3. Back Panel Section (DZ680/HDZ485) ........................... 18
3-4. Back Panel Section (DZ280/HDZ284) ........................... 18
3-5. DVD Mechanism Deck ................................................... 19
3-6. POWER Board, USB Board (DZ280/DZ680) ................ 19
3-7. MAIN Board, SPEAKER Board .................................... 20
3-8. IO-SCART Board (DZ280/DZ680),
3-2. Front Panel Section ......................................................... 17
3-3. Back Panel Section (DZ680/HDZ485) ........................... 18
3-4. Back Panel Section (DZ280/HDZ284) ........................... 18
3-5. DVD Mechanism Deck ................................................... 19
3-6. POWER Board, USB Board (DZ280/DZ680) ................ 19
3-7. MAIN Board, SPEAKER Board .................................... 20
3-8. IO-SCART Board (DZ280/DZ680),
IO-COMPONENT Board (HDZ284/HDZ485) .............. 20
3-9. Tray
................................................................................. 21
3-10. Belt .................................................................................. 21
3-11. MS-203 Board ................................................................. 22
3-12. Base Unit ......................................................................... 22
3-13. Optical Pick-up ............................................................... 23
3-11. MS-203 Board ................................................................. 22
3-12. Base Unit ......................................................................... 22
3-13. Optical Pick-up ............................................................... 23
4.
TEST MODE
............................................................ 24
5. ELECTRICAL
ADJUSTMENTS
........................ 30
6. DIAGRAMS
6-1. Block Diagram –RF Section– ......................................... 31
6-2. Block Diagram –VIDEO Section– ................................. 32
6-3. Block Diagram –AUDIO Section– ................................. 33
6-4. Block Diagram –AMP Section– ..................................... 34
6-5. Block Diagram –POWER Section– ................................ 35
6-6. Printed Wiring Board –MAIN Section (1/2)– ................. 38
6-7. Printed Wiring Boards –MAIN Section (2/2)– ............... 39
6-8. Schematic Diagram –MAIN Section (1/10)– ................. 40
6-9. Schematic Diagram –MAIN Section (2/10)– ................. 41
6-10. Schematic Diagram –MAIN Section (3/10)– ................. 42
6-2. Block Diagram –VIDEO Section– ................................. 32
6-3. Block Diagram –AUDIO Section– ................................. 33
6-4. Block Diagram –AMP Section– ..................................... 34
6-5. Block Diagram –POWER Section– ................................ 35
6-6. Printed Wiring Board –MAIN Section (1/2)– ................. 38
6-7. Printed Wiring Boards –MAIN Section (2/2)– ............... 39
6-8. Schematic Diagram –MAIN Section (1/10)– ................. 40
6-9. Schematic Diagram –MAIN Section (2/10)– ................. 41
6-10. Schematic Diagram –MAIN Section (3/10)– ................. 42
TABLE OF CONTENTS
6-11. Schematic Diagram –MAIN Section (4/10)– ................. 43
6-12. Schematic Diagram –MAIN Section (5/10)– ................. 44
6-13. Schematic Diagram –MAIN Section (6/10)– ................. 45
6-14. Schematic Diagram –MAIN Section (7/10)– ................. 46
6-15. Schematic Diagram –MAIN Section (8/10)– ................. 47
6-16. Schematic Diagram –MAIN Section (9/10)– ................. 48
6-17. Schematic Diagram –MAIN Section (10/10)– ............... 49
6-18. Printed Wiring Board –IO-SCART Section
(DZ280/DZ680)–
6-12. Schematic Diagram –MAIN Section (5/10)– ................. 44
6-13. Schematic Diagram –MAIN Section (6/10)– ................. 45
6-14. Schematic Diagram –MAIN Section (7/10)– ................. 46
6-15. Schematic Diagram –MAIN Section (8/10)– ................. 47
6-16. Schematic Diagram –MAIN Section (9/10)– ................. 48
6-17. Schematic Diagram –MAIN Section (10/10)– ............... 49
6-18. Printed Wiring Board –IO-SCART Section
(DZ280/DZ680)–
............................................................
50
6-19. Schematic Diagram –IO-SCART Section
(DZ280/DZ680)–
(DZ280/DZ680)–
............................................................
51
6-20. Printed Wiring Board –IO-COMPONENT Section
(HDZ284/HDZ485)–
(HDZ284/HDZ485)–
......................................................
52
6-21. Schematic Diagram –IO-COMPONENT Section
(HDZ284/HDZ485)–
(HDZ284/HDZ485)–
......................................................
53
6-22. Printed Wiring Boards –FL JACK, SWITCH Section– ... 54
6-23. Schematic Diagram –FL JACK Section– ....................... 55
6-24. Schematic Diagram –SWITCH Section– ....................... 56
6-25. Printed Wiring Boards –S-AIR-CON (DZ680/HDZ485),
6-23. Schematic Diagram –FL JACK Section– ....................... 55
6-24. Schematic Diagram –SWITCH Section– ....................... 56
6-25. Printed Wiring Boards –S-AIR-CON (DZ680/HDZ485),
USB (DZ280/DZ680) Section– ...................................... 57
6-26. Schematic Diagram –S-AIR-CON Section
(DZ680/HDZ485)–
(DZ680/HDZ485)–
.......................................................... 58
6-27. Schematic Diagram –USB Section (DZ280/DZ680)– .... 59
6-28. Printed Wiring Board –SPEAKER Section– .................. 60
6-29. Schematic Diagram –SPEAKER Section– ..................... 61
6-30. Printed Wiring Board –POWER Section– ...................... 62
6-31. Schematic Diagram –POWER Section– ......................... 63
6-28. Printed Wiring Board –SPEAKER Section– .................. 60
6-29. Schematic Diagram –SPEAKER Section– ..................... 61
6-30. Printed Wiring Board –POWER Section– ...................... 62
6-31. Schematic Diagram –POWER Section– ......................... 63
7.
EXPLODED VIEWS
7-1. Overall
Section
............................................................... 77
7-2. Front Panel Section ......................................................... 78
7-3. Chassis
7-3. Chassis
Section
............................................................... 79
7-4. DVD Mechanism Deck Section (CDM85-DVBU102) .. 80
8.
ELECTRICAL PARTS LIST
.............................. 81
HCD-DZ280/DZ680/HDZ284/HDZ485
10
SECTION 1
SERVICING NOTES
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 electrostat-
ic 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 fl exible board is easily damaged and should be handled with
care.
ic 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 fl exible 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 refl ective 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.
The laser beam on this model is concentrated so as to be focused
on the disc refl ective 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.
How to open the disc table when power switch turns off
Insert a tapering driver into the aperture of the unit bottom, and
slide it in the direction of the arrow.
Insert a tapering driver into the aperture of the unit bottom, and
slide it in the direction of the arrow.
Precaution when installing a new OP unit/
Precaution before unsoldering the static electricity
prevention solder bridge
Precaution before unsoldering the static electricity
prevention solder bridge
When installing a new OP unit, be sure to connect the fl exible
printed circuit board fi rst of all before removing the static electricity
prevention solder bridge by unsoldering.
Remove the static electricity prevention solder bridge by
unsoldering after the fl exible printed circuit board has already been
connected.
(Do not remove nor unsolder the solder bridge as long as the OP
unit is kept standalone.)
printed circuit board fi rst of all before removing the static electricity
prevention solder bridge by unsoldering.
Remove the static electricity prevention solder bridge by
unsoldering after the fl exible printed circuit board has already been
connected.
(Do not remove nor unsolder the solder bridge as long as the OP
unit is kept standalone.)
On cleaning discs, disc/lens cleaners
• Do not use cleaning discs or disc/lens cleaners (including wet or
• Do not use cleaning discs or disc/lens cleaners (including wet or
spray types). These may cause the apparatus to malfunction.
IMPORTANT NOTICE
Caution: This system is capable of holding a still video image or
on-screen display image on your television screen indefi nitely.
If you leave the still video image or on-screen display image
displayed on your TV for an extended period of time you risk
permanent damage to your television screen.
Projection televisions are especially susceptible to this.
Caution: This system is capable of holding a still video image or
on-screen display image on your television screen indefi nitely.
If you leave the still video image or on-screen display image
displayed on your TV for an extended period of time you risk
permanent damage to your television screen.
Projection televisions are especially susceptible to this.
Attention when transported
Use this mode when returning the set to the customer after repair.
Procedure:
1. Press the [
Use this mode when returning the set to the customer after repair.
Procedure:
1. Press the [
?/1
] button to turn the set on.
2. Press the [FUNCTION] button to set the function “DVD”.
3. Remove all discs, and then press two buttons [
3. Remove all discs, and then press two buttons [
N
] and [
?/1
]
simultaneously.
4. After a message “MECHA LOCK” is displayed on the
fl uorescent indicator tube, pull out the AC plug.
5. To exit from this mode, press the [
?/1
] button to turn the set
on.
DISC TRAY LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the [
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the [
?/1
] button to turn the set on.
2. Press the [FUNCTION] button to set DVD function.
3. Insert a disc.
4. Press the [
3. Insert a disc.
4. Press the [
x
] button and the [
Z
] button simultaneously for fi ve
seconds.
5. The message “LOCKED” is displayed and the tray is locked.
Releasing Procedure :
1. Press the [
Releasing Procedure :
1. Press the [
x
] button and the [Z] button simultaneously for fi ve
seconds again.
2. The message “UNLOCKED” is displayed and the tray is
unlocked.
Note: When “LOCKED” is displayed, the tray lock is not released by
turning power on/off with the [?/1] button.
LASER DIODE AND FOCUS SEARCH
1. Open the case and turn POWER on with no disc inserted.
2. Confi rm that the following operation is performed while
1. Open the case and turn POWER on with no disc inserted.
2. Confi rm that the following operation is performed while
observing the objecting lens from the clearance of DVD
mechanism deck.
1) Confi rm that laser beam is spread.
2) Up and down motion of the objective lens. (2 times)
mechanism deck.
1) Confi rm that laser beam is spread.
2) Up and down motion of the objective lens. (2 times)
Peel off the seal and so the lever is moved
in the direction of the arrow with the thin rod.
in the direction of the arrow with the thin rod.
tray
lavel
HCD-DZ280/DZ680/HDZ284/HDZ485
11
Discharge the charged electricity in capacitors to prevent electric shock as follows
When disassembling the machine, be sure to discharge the charged electricity in the following capacitors.
Use a resistor of 800 ohms, 2 Watts for discharging the following capacitors.
When disassembling the machine, be sure to discharge the charged electricity in the following capacitors.
Use a resistor of 800 ohms, 2 Watts for discharging the following capacitors.
POWER board
C903: 390V
C932, C933, C934, CN904: 30V
C903: 390V
C932, C933, C934, CN904: 30V
Point of capacitor discharge for C932, C933, C934:
Connect to the red and black wire of CN904
Connect to the red and black wire of CN904
Point of capacitor discharge for C903:
Connect to the foot of C903
Connect to the foot of C903
800
Ω/2W
HCD-DZ280/DZ680/HDZ284/HDZ485
12
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
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95
GB
Index to Parts and Control
(DZ280)
For more information, refer to the pages indicated in parentheses.
" / (on/standby) (21, 78)
# ; (open/close) (27)
$ Front panel display (97)
% FUNCTION (23)
&
(remote sensor) (10)
' MOVIE/MUSIC indicator (73)
( VOLUME control (27)
) REC TO USB (67)
( VOLUME control (27)
) REC TO USB (67)
*
(USB) port (58)
+ OPERATION DIAL (27)
, PHONES jack (27)
- AUDIO IN jack (17)
. Play operation buttons (27)
/ Disc tray (27)
Front panel
96
GB
" SPEAKER jacks (15)
# COAXIAL 75Ω FM jack (19)
$ EURO AV 5 OUTPUT (TO TV) jack (16)
% DMPORT (DIGITAL MEDIA PORT) jack
(17, 69)
& HDMI OUT jack (16)
Rear panel
CENTER
SUBWOOFER
FRONT R
FRONT L
SUR R
SUR L
SPEAKER
HDMI OUT
SPEAKER
EURO AV
OUTPUT(TO TV)
COAXIAL 75
FM
ANTENNA
DMPORT
DC5V
0.7A MAX
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97
GB
About the indications in the front panel display
" Playing status
# Flashes when the sleep timer is set.
(74)
$ Displays the system’s status such as
chapter, title, or track number, time
information, radio frequency, playing
status, decoding mode, etc.
information, radio frequency, playing
status, decoding mode, etc.
% Lights up when a station is received.
(Radio only) (52)
& Stereo/Monaural effect (Radio only)
(53)
' Lights up when the HDMI OUT jack is
correctly connected to HDCP (High-
bandwidth Digital Content Protection)
compliant device with HDMI or DVI
(Digital Visual Interface) input. (16)
bandwidth Digital Content Protection)
compliant device with HDMI or DVI
(Digital Visual Interface) input. (16)
( Current surround format (Except for
JPEG image file)
) Lights up when an NTSC disc is
loaded.
* Lights up when a Super Audio CD/CD
is loaded. (30)
Front panel display
98
GB
Remote control
S
N
O
I
T
P
I
R
C
S
E
D
N
O
T
T
U
B
R
E
D
R
O
L
A
C
I
T
E
B
A
H
P
L
A
Z
–
P
O
–
A
ANGLE XT (28)
AUDIO RH (29)
CLEAR FT (32, 53)
D.TUNING RI (53)
DIMMER FE (75)
DISPLAY XB (54, 64, 75)
DVD MENU XH (35)
DVD TOP MENU RE (35)
DYNAMIC BASS (72)
ENTER XG (72)
FUNCTION +/– (23, 27)
MEMORY SELECT
AUDIO RH (29)
CLEAR FT (32, 53)
D.TUNING RI (53)
DIMMER FE (75)
DISPLAY XB (54, 64, 75)
DVD MENU XH (35)
DVD TOP MENU RE (35)
DYNAMIC BASS (72)
ENTER XG (72)
FUNCTION +/– (23, 27)
MEMORY SELECT
1)
XT
MENU XH (72)
MUTING (27)
NIGHT XE (72)
ONE-TOUCH PLAY FI (56)
MUTING (27)
NIGHT XE (72)
ONE-TOUCH PLAY FI (56)
PICTURE NAVI FG (38, 60)
PRESET +/– XK (53)
PROG +/– XK (72)
S-AIR MODE
PRESET +/– XK (53)
PROG +/– XK (72)
S-AIR MODE
2)
FH
SLEEP RK (74)
SOUND MODE (73)
SUBTITLE RI (28)
SYSTEM MENU (20, 24, 52,
SOUND MODE (73)
SUBTITLE RI (28)
SYSTEM MENU (20, 24, 52,
74)
THEATRE RL (55)
TOOLS XI (72)
TUNING +/– (52)
TV XM (72)
TV INPUT X (72)
VOLUME +/– (27)
TOOLS XI (72)
TUNING +/– (52)
TV XM (72)
TV INPUT X (72)
VOLUME +/– (27)
Number buttons RG (31, 52, 72)
</ (on/standby) (20, 21, 27)
TV </ (on/standby) RM (72)
$/9/Y/D/
</ (on/standby) (20, 21, 27)
TV </ (on/standby) RM (72)
$/9/Y/D/
RT (20, 21, 30, 32,
52, 71)
+/– (37, 57)
REPLAY/ADVANCE
(27)
/ XK (27)
N/. (27)
STEP
N/. (27)
STEP
/
(27)
SLOW
/
(27)
)(play) F (27)
Y (stop) XL (27)
9 (pause) RB (27)
Y (stop) XL (27)
9 (pause) RB (27)
DISPLAY
3)
XI (21, 30, 32, 45,
71, 99)
0
RETURN FB (31, 72)
-/-- FT (72)
1)
See the included supplement.
2)
This button is not available
for this model.
3)
This button is available for
the “DVD,” “USB,” or
“DMPORT” function.
Depending on the DIGITAL
MEDIA PORT adapter, this
button may not work.
“DMPORT” function.
Depending on the DIGITAL
MEDIA PORT adapter, this
button may not work.
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