Sharp XL-DV50 (serv.man2) Service Manual ▷ View online
XL-DV50H
6 – 23
Figure 6-23 WIRING SIDE OF PWB (9/11)
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C115
L30
U7
R174
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C180
C177
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R173
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L1
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D1
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L10
JP1B
FFC1B
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C158
C36
L7
C187
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D9
R182
CNW4
CNW3
C155
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C50
C86
C87
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M15
M11
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6-15 8 - F
TO PICKUP UNIT ASS'Y
6-15
11
-F
TO
DVD
MCHANISM
PWB
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6-15
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-A
CNP904A
TO
VIDEO
TERMINAL
PWB
VD PWB-C (TOP VIEW)
M7
M12
M10
M8
M9
TP33
TP27
TP25
TP18
TP16
TP12
TP9
TP6
TP5
TP4
TP31
TP20
TP19
TP13
M14
M6
TP26
TP23
TP17
TP11
TP3
TP2
TP1
TP14
XL-DV50H
6 – 24
Figure 6-24 WIRING SIDE OF PWB (10/11)
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H
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C77
C84
R10
R11
R13
R12
R7
R6
M24
VCC
OPTI
GND
GNDV
CVBS
GNDV
OPTI
GND
GNDV
CVBS
GNDV
GNDV
G/Y
C/V
C/V
UDAC
CDAC
CDAC
FOCUS+
FOCUS-
RFGND
TRACK+
TRACK-
A
B
PD
E
C
D
H
G
F
PVC
CDLDO
VRCD
VRDVD
DVDLDO
DVDLDO
RGB/S
MGND
SW
SLEG-
SLEG+
LOAD+
LOAD-
SW
SLEG-
SLEG+
LOAD+
LOAD-
M23
M22
M20
RF50V
DVD PWB-C (BOT
XL-DV50H
6 – 25
Figure 6-25 WIRING SIDE OF PWB (11/11)
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R73
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R115
L2
STB
CLID
BUSY
CLK
DI
DO
GND
M18
GND
VCC1
+12V1
SVCC1
RFGND
VCCA1
GNDA1
M20
M21
L
R
GNDA
SUB
PWB-C (BOTTOM VIEW)
M19
XL-DV50H
7 – 1
Audio
XL-DV50H
Service Manual
XLDV50H
Market
E
CHAPTER 7.
FLOWCHART
[1] TROUBLESHOOTING
1. When the CD does not function
The CD section may not operate when the objective lens of the optical pickup is dirty. Clean the objective lens, and check the playback operation.
When this section does not operate even after the above step is taken, check the following items.
When this section does not operate even after the above step is taken, check the following items.
Remove the cabinet and follow the trouble shooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens. Before attempting
any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.
2. When a DVD/CD cannot be played
2.1. Pressing the DVD/CD operation key is accepted, but playback does not occur.
1) Focus-HF system check
2) Tracking system check
3) Spin system check
4) Others
Parts code
1.
CD optical pickup Lens cleaner disc
UDSKA0004AFZZ
HOW TO USE
CAUTION
Cleaning fluid
Cleaner disc
Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the
brush on the CD cleaner disc which has the mark next to it.
Place the CD cleaner disc onto the CD disc tray with the brush side down,then
press the play button.
You will hear music for about 20 seconds and the CD player will automatically stop.
If it still play continuously, press the stop button.
1.
2.
3.
The CD lens cleaner should be effective for 30-50 operations, however if the
brushes become worn out earlier then please replace the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft
cloth.
Do not drink the cleaner fluid or allow it contact with the eyes. In the event of this
happening then drink and / or rinse with clean water and seek medical advice.
The CD cleaner disc must not be used on car CD players or on computer CD-ROM
drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting this product
is prohibited by law.
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