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LG GSA-4040B Service Manual page 80

Super multi dvd drive
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No. Error Code
SSB Byte21,22
7
46xx
8
47xx
9
49xx
10
4Axx
11
4A5x
4A6x
12
4A8x
13
4B0x
14
4B8x
82
Contents of fail
Lens Position Adjust NG.
Servo Loop Gain Adjust NG.
Unwritten Slice Level Adjust NG. 4906: RAM Disc NG (Exchange Disc).
£¤ RAM Only£'
Focus Offset Adjust NG.
(DVD-ROM,CD-R/RW)
Focus Offset Adjust NG.
£¤ RAM Only for PID£'
Focus Offset Adjust NG.
£¤RAM Only for Data£'
Tilt Adjust NG(RAM Only).
Tilt Adjust NG(DVD-/+ R/RW).
Fail Analysis
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) Check solder of IC701circumference.
(R707,R708,C709,C710)
5) Exchange IC508.
6) Exchange IC602.
7) Exchange IC101(AFE).
8) Exchange IC701(DSP).
47XA: Disc Unmatch(Exchange Disc).
1) Check Pickup FFC Connection.
2) Exchange Pickup (Signal Noisy).
3) Check solder of IC101circumference.
(pin#3,4,5 pin#86-98,
FE_Servo: R701, R740, C703
TE_Servo: R706, R741, C708)
4) Exchange IC101(AFE).
5) Exchange IC701(DSP).
6) Exchange IC601(Driver).
4902: IC801-pin#72,IC701-pin#133.
1) Check solder of IC101circumference.
(pin#3,4,5 pin#86-98)
2) Exchange IC101(AFE).
3) Exchange IC801(MPU).
4) Exchange IC701(DSP).
4A08: Disc Unmatch(Exchange Disc).
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Exchange IC701(DSP).
1) RAM Disc NG (Exchange RAM Disc)
2) Exchange Pickup
3) Exchange IC101(AFE)
4) Exchange IC701(DSP)
4A88: RAM Disc NG (Exchange RAM Disc).
1) Exchange Pickup.
2) Exchange IC101(AFE).
1) Check Pickup FFC Connection.
2) Exchange Pickup.
3) Check solder of IC101circumference.
(pin#10,11 R709,C711,R704,C706)
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 IC7017)
7) Exchange Slider Motor.
Block Diagram
No.09
No.10
N0.11
No.12
No.13
No.14
No.15
No.16

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