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LG GSA-4040B Service Manual page 81

Super multi dvd drive
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No. Error Code
SSB Byte21,22
15
4Cxx
16
4Dxx
17
182x
01xx
18
51xx
19
52xx
20
54xx
21
55xx
22
56xx
Contents of fail
Data Slice Adjust NG.
(RAM Only)
Focus Deviation Adjust NG.
Home Position Adjust NG.
(DVD-SL Only)
Focus Balance Adust NG.
(DVD-SL Only)
Focus Offset Adjust NG.
(DVD-R/RW, +R/RW)
DPP Amp Adjust NG.
(CD Disc Only)
Lens Shift/ Tilt Adjust NG.
(CD Disc Only)
Focus Level Adjust NG.
Fail Analysis
4C88/4C89: RAM Disc NG
(Excahnge RAM Disc).
2) Exchange Pickup.
3) Exchange IC101(AFE).
4) Exchange IC701(DSP).
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Check solder of IC701circumference.
4) Exchange IC701(AFE).
1) Check FFC Connection.
2) Check Slider FPC Connection.
3) Exchange Slider Motor.
4) Check solder of IC101circumference.
5) Exchange IC101(AFE).
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Check solder of IC101circumference.
(pin#3,4,5 pin#86-98,
FE_Servo: R701, R740, C703)
4) Exchange IC101(AFE).
5) Exchange IC701(DSP).
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Check solder of IC101circumference.
(pin#3,4,5 pin#86-98,
TE_Servo: R706, R741, C708)
4) Exchange IC101.
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Check solder of IC101circumference.
(pin#3,4,5 pin#86-98,
TE_Servo: R706, R741, C708)
4) Exchange IC101(AFE).
5) Exchange IC701(DSP).
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Check solder of IC602 and IC603
circumference.
4) Exchange IC602 or IC603.
5) Check solder of IC701 circumference.
6) Exchange IC701.
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Check solder of IC101circumference.
(pin#3,4,5 pin#86-98,
PE_Servo: R702, C704)
4) Exchange IC101(AFE).
5) Exchange IC701(DSP).
Block Diagram
No.14
No.17
No.23
No.07
No.18
No.08
No.16
No.07
83

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