LG GSA-4167B - Manual (Page 80)

84
No. Error Code Contents of fail Fail Analysis Block Diagram
SSB Byte21,22
1 2503,2504 RTZ Timeout(Sled Timeout). 1) Check Slider FPC Connection. No.21
2) Check solder of IC601 circumference .
(pin#2-3, 6, 8-10)
3) Exchange IC601.
4) Exchange Slider Motor.
2 2020,2021 Focus Fail. 1) Check Pickup FFC Connection. No.22
2) Exchange Pickup.
3) Check solder of IC601circumference.
4) Exchange IC601(Driver)
5) Check solder of IC101circumference.
(pin#1,2,3pin#87-90,
FE_Servo: R102, C405)
6) Exchange IC101(AFE).
3 2101,2102 Tracking Fail. 1) Check Pickup FFC Connection. No.22
2) Exchange Pickup.
3) Check solder of IC601circumference.
4) Exchange IC601(Driver).
5) Check solder of IC101circumference.
(pin#1,2,3 pin#87-90,
TE_Servo: R101, C101).
6) Exchange IC101(AFE).
4 2000~2010 Spindle Fail. 1) Check Spindle FFC Connection. No.18
2) Check solder of IC601circumference.
(pin#12-14)
3) Exchange IC601(Driver).
4) Exchange Spindle Motor.
5) Check solder of IC301circumference.
6) Exchange IC301(MPU & DSP).
3. Loading Sequence Error (Lead in Error)