Sony HCD-VM330AV Service Manual ▷ View online
2
HCD-VM330AV
TABLE OF CONTENTS
1.
SERVICING NOTE
..................................................
4
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
7
3-2. Upper Cover ....................................................................
8
3-3. Front Block Assy .............................................................
8
3-4. VIDEO Board ..................................................................
9
3-5. MAIN Board ...................................................................
9
3-6. Back Panel, DC Fan (M391) ........................................... 10
3-7. MAIN AMP Board, POWER Board,
3-7. MAIN AMP Board, POWER Board,
VOL SEL Board .............................................................. 10
3-8. Middle (F) Assy, Bracket (Middle-R),
Power Bracket ................................................................. 11
3-9. CD Mechanism Deck (CDM64-30ABD61A) ................ 11
3-10. Base Unit (BU-30ABD61A) ........................................... 12
3-11. BU Holder Assy .............................................................. 12
3-12. Cassette Lid Assy (A)/(B) ............................................... 13
3-13. Mech Deck (TAPE) ......................................................... 13
3-10. Base Unit (BU-30ABD61A) ........................................... 12
3-11. BU Holder Assy .............................................................. 12
3-12. Cassette Lid Assy (A)/(B) ............................................... 13
3-13. Mech Deck (TAPE) ......................................................... 13
4.
TEST MODE
.............................................................. 14
5.
MECHANICAL ADJUSTMENTS
....................... 15
6.
ELECTRICAL ADJUSTMENTS
Deck Section ............................................................................. 15
CD Section ................................................................................ 17
Video Section ............................................................................ 18
Sensor Section ........................................................................... 19
CD Section ................................................................................ 17
Video Section ............................................................................ 18
Sensor Section ........................................................................... 19
7.
DIAGRAMS
7-1. Block Diagram – CD SERVO Section – ........................ 21
7-2. Block Diagram – AUDIO/VIDEO Section – ................ 22
7-3. Block Diagram – TUNER/TAPE DECK Section – ...... 23
7-4. Block Diagram – SURROUND Section – ...................... 24
7-5. Block Diagram – AMP Section – ................................... 25
7-6. Block Diagram
7-2. Block Diagram – AUDIO/VIDEO Section – ................ 22
7-3. Block Diagram – TUNER/TAPE DECK Section – ...... 23
7-4. Block Diagram – SURROUND Section – ...................... 24
7-5. Block Diagram – AMP Section – ................................... 25
7-6. Block Diagram
– DISPLAY/POWER SUPPLY Section – ...................... 26
7-7. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 27
7-8. Printed Wiring Board – BD Section – ............................ 28
7-9. Schematic Diagram – BD Section – ............................... 29
7-10. Printed Wiring Board – AUDIO/VIDEO Section – ....... 30
7-11. Schematic Diagram
7-9. Schematic Diagram – BD Section – ............................... 29
7-10. Printed Wiring Board – AUDIO/VIDEO Section – ....... 30
7-11. Schematic Diagram
– AUDIO/VIDEO Section (1/3) – .................................. 31
7-12. Schematic Diagram
– AUDIO/VIDEO Section (2/3) – .................................. 32
7-13. Schematic Diagram
– AUDIO/VIDEO Section (3/3) – .................................. 33
7-14. Printed Wiring Boards
– CD MOTOR/SENSOR Section – ................................ 34
7-15. Schematic Diagram
– CD MOTOR/SENSOR Section – ................................ 35
7-16. Printed Wiring Board – TC Section – ............................. 36
7-17. Schematic Diagram – TC Section – ............................... 37
7-18. Schematic Diagram – MAIN Section (1/4) – ................. 38
7-19. Schematic Diagram – MAIN Section (2/4) – ................. 39
7-20. Schematic Diagram – MAIN Section (3/4) – ................. 40
7-21. Schematic Diagram – MAIN Section (4/4) – ................. 41
7-22. Printed Wiring Board – MAIN Section – ....................... 42
7-23. Printed Wiring Boards – AMP Section – ........................ 44
7-24. Schematic Diagram – AMP Section – ............................ 45
7-25. Printed Wiring Boards – DISPLAY Section – ............... 46
7-26. Schematic Diagram – DISPLAY Section – .................... 47
7-27. Printed Wiring Board – CONTROL Section – ............... 48
7-28. Schematic Diagram – CONTROL Section – .................. 49
7-29. Printed Wiring Boards – POWER Section – .................. 50
7-30. Schematic Diagram – POWER Section – ...................... 51
7-31. IC Pin Function Description ........................................... 55
7-17. Schematic Diagram – TC Section – ............................... 37
7-18. Schematic Diagram – MAIN Section (1/4) – ................. 38
7-19. Schematic Diagram – MAIN Section (2/4) – ................. 39
7-20. Schematic Diagram – MAIN Section (3/4) – ................. 40
7-21. Schematic Diagram – MAIN Section (4/4) – ................. 41
7-22. Printed Wiring Board – MAIN Section – ....................... 42
7-23. Printed Wiring Boards – AMP Section – ........................ 44
7-24. Schematic Diagram – AMP Section – ............................ 45
7-25. Printed Wiring Boards – DISPLAY Section – ............... 46
7-26. Schematic Diagram – DISPLAY Section – .................... 47
7-27. Printed Wiring Board – CONTROL Section – ............... 48
7-28. Schematic Diagram – CONTROL Section – .................. 49
7-29. Printed Wiring Boards – POWER Section – .................. 50
7-30. Schematic Diagram – POWER Section – ...................... 51
7-31. IC Pin Function Description ........................................... 55
8.
EXPLODED VIEWS
8-1. General Section ............................................................... 67
8-2. Front Panel Section ......................................................... 68
8-3. Chassis Section ............................................................... 69
8-4. Mechanism Deck Section (CDM64-30ABD61A) ......... 70
8-5. Base Unit Section (BU-30ABD61A) ............................. 71
8-2. Front Panel Section ......................................................... 68
8-3. Chassis Section ............................................................... 69
8-4. Mechanism Deck Section (CDM64-30ABD61A) ......... 70
8-5. Base Unit Section (BU-30ABD61A) ............................. 71
9.
ELECTRICAL PARTS LIST
............................... 72
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
530 – 1,710 kHz
(with the interval set at
10 kHz)
531 – 1,602 kHz
(with the interval set at
9 kHz)
(with the interval set at
10 kHz)
531 – 1,602 kHz
(with the interval set at
9 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
110 – 120 V or 220 –
240 V AC, 50/60 Hz
Adjustable with voltage
selector
240 V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption
200 watts
Dimensions (w/h/d) incl. projecting parts and controls
Approx. 280
×
383
×
480
mm
Mass:
Approx. 12.1 kg
Design and specifications are subject to change
without notice.
without notice.
3
HCD-VM330AV
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.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
The 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.
exceeding the limit for Class 1.
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.
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.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
check that the S curve waveforms is output three times.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
4
HCD-VM330AV
SECTION 1
SERVICING NOTES
CD-TEXT TEST DISC
This unit is able to display the test data (character information)
written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used
for checking the display.
To check, perform the following procedure.
written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used
for checking the display.
To check, perform the following procedure.
Checking Method:
1. Press the
I/1
button to turn the power on, set the disc to the
disc table with the “test disc” label facing up, and chuck the
disc.
disc.
2. Press the
[CD]
button to set CD function, and press the
n N
button
to playback the disc.
3. The following will be displayed on the liquid crystal display.
Display : 1KHZ/0DB/L R
4. Pressing the
[-- ]
or
[ +]
button, select the track. The text
data of each track will be displayed.
For details of the displayed contents for each track, refer to “Table
1: CD-TEXT TEST DISC TEXT Data Contents”.
For details of the displayed contents for each track, refer to “Table
1: CD-TEXT TEST DISC TEXT Data Contents”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed prop-
erly. These will be displayed as a space or a character resembling
it.
erly. These will be displayed as a space or a character resembling
it.
Table 1: CD-TEXT TEST DISC TEXT Data Contents
(TRACKS No. 1 to 20:Normal Characters)
1
1kHz/0dB/L&R
2
20Hz/0dB/L&R
3
40Hz/0dB/L&R
4
100Hz/0dB/L&R
5
200Hz/0dB/L&R
6
500Hz/0dB/L&R
7
1kHz/0dB/L&R
8
5kHz/0dB/L&R
9
7kHz/0dB/L&R
10
10kHz/0dB/L&R
11
16kHz/0dB/L&R
12
18kHz/0dB/L&R
13
20kHz/0dB/L&R
14
1kHz/0dB/L&R
15
1kHz/–1dB/L&R
16
1kHz/–3dB/L&R
17
1kHz/–6dB/L&R
18
1kHz/–10dB/L&R
19
1kHz/–20dB/L&R
20
1kHz/–60dB/L&R
TRACK
No.
Displayed Contents
Note:
Track No. 21 to 99 are not displayed.
.
>
CLEANING OBJECTIVE LENS OF OPTICAL PICK-UP
• In cleaning the objective lens of optical pick-up, be sure the
following below.
(Figure A)
Note 1.
In cleaning the lens, do not apply an excessive force.
As the optical pick-up is vulnerable, application of excessive
force could damage the lens holder.
As the optical pick-up is vulnerable, application of excessive
force could damage the lens holder.
Note 2.
In cleaning, do not use a cleaner other than exclusive cleaning
liquid (KK-91 or isopropyl alcohol).
liquid (KK-91 or isopropyl alcohol).
Note 3.
Wipe the objective lens spirally from center toward outside. (See
Figure A)
Figure A)
2
Remove the
magnet assy.
magnet assy.
1
Open the torsion holder
(magnet) in direction of
arrow
(magnet) in direction of
arrow
A
.
A
optical pick-up
bracket (top 60) hole
3
Put a cotton bud into
the hole on the bracket
(top 60) and clean the
OP lens.
the hole on the bracket
(top 60) and clean the
OP lens.
5
HCD-VM330AV
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.
4
Parts Identification
5.1CH/VIDEO (MD) 5 (34)
AUDIO IN L jack wk (35)
AUDIO IN R jack wj (35)
CD 5 (13, 16, 27)
CD SYNCHRO wh (27, 28)
CLEAR w; (17, 18, 40)
Deck A es (26)
Deck B 0 (26)
DIRECTION ea (26)
DISC ACCESS ql (12, 13, 16,
AUDIO IN L jack wk (35)
AUDIO IN R jack wj (35)
CD 5 (13, 16, 27)
CD SYNCHRO wh (27, 28)
CLEAR w; (17, 18, 40)
Deck A es (26)
Deck B 0 (26)
DIRECTION ea (26)
DISC ACCESS ql (12, 13, 16,
17)
Display window 4
DISPLAY wd (11, 19, 25, 40)
ENTER qk (11, 17, 18, 25, 28, 29)
FRONT qd (31)
GAME e; (32, 35)
KEYBOARD INPUT jack ws
DISPLAY wd (11, 19, 25, 40)
ENTER qk (11, 17, 18, 25, 28, 29)
FRONT qd (31)
GAME e; (32, 35)
KEYBOARD INPUT jack ws
(33)
LINK qg (31)
MENU ea (18, 24)
PHONES jack wa
PLAY MODE wf (17, 28)
PRESET EQ 7 (30)
PRO LOGIC qs (10, 31)
PUSH OPEN (Front cover) qj
PHONES jack wa
PLAY MODE wf (17, 28)
PRESET EQ 7 (30)
PRO LOGIC qs (10, 31)
PUSH OPEN (Front cover) qj
(12)
REAR qf (31)
REC PAUSE/START wh (27, 28)
REPEAT wg (14)
STEREO/MONO wg (25)
SURROUND qa (31)
SURROUND MODE 8 (31)
TAPE A/B 5 (26)
TIMER SELECT 3 (29, 33)
TIMER SET 3 (11, 29, 32)
TUNER/BAND 5 (24)
VIDEO IN jack wl (35)
VOLUME control qh
REC PAUSE/START wh (27, 28)
REPEAT wg (14)
STEREO/MONO wg (25)
SURROUND qa (31)
SURROUND MODE 8 (31)
TAPE A/B 5 (26)
TIMER SELECT 3 (29, 33)
TIMER SET 3 (11, 29, 32)
TUNER/BAND 5 (24)
VIDEO IN jack wl (35)
VOLUME control qh
BUTTON DESCRIPTIONS
Z (deck A) 1
=/1 (power) 2
m (rewind) 6
n N (play) 6
X PAUSE 6
M (fast forward) 6
x (stop) 6
— . (go back) 6
> + (go forward) 6
Z (deck B) 9
=/1 (power) 2
m (rewind) 6
n N (play) 6
X PAUSE 6
M (fast forward) 6
x (stop) 6
— . (go back) 6
> + (go forward) 6
Z (deck B) 9
The items are arranged in alphabetical order.
Refer to the pages indicated in parentheses ( ) for details.
Refer to the pages indicated in parentheses ( ) for details.
Main unit
1
es
ea
e;
wl
wk
wj
wh
wg
wf
wd
ws
wa
2 3 4
56 7 8
9
qs
w;
ql
qd
0
qa
qf
qg
qh
qj
qk