LG Electronics GSA-4167B, GSA-4168B, GSA-4165B service manual Dvd-Rom,Cd-R/Rw, Dvd-R/Rw, +R/Rw

No.	Error Code	Contents of fail	Fail Analysis		Block Diagram
	SSB Byte21,22
7	4Axx	Focus Offset Adjust NG.	4A08: Disc Unmatch(Exchange Disc).		No.10
		(DVD-ROM,CD-R/RW)	1) Check Pickup FFC Connection.
			2)	Exchange Pickup.
			3) Exchange IC301(MPU & DSP).
8	4A5x	Focus Offset Adjust NG.	1) RAM Disc NG (Exchange RAM Disc)		No.11
	4A6x	(RAM Only for PID)	2) Exchange Pickup
			3)	Exchange IC101(AFE)
			4) Exchange IC301(MPU & DSP)
9	4A8x	Focus Offset Adjust NG.	4A88: RAM Disc NG (Exchange RAM Disc).		No.12
		(RAM Only for Data)	1) Exchange Pickup.
			2)	Exchange IC101(AFE).
			3) Exchange IC301(MPU & DSP)
10	4B0x	Tilt Adjust NG(RAM Only).	1) Check Pickup FFC Connection.		No.13
			2)	Exchange Pickup.
			3)	Check solder of IC101circumference.
				(pin#6,7 R106, C106, R107, C107)
			4)	Exchange IC101(AFE).
			5) Exchange IC301(MPU & DSP).
11	4B8x	Tilt Adjust NG(DVD-/+ R/RW).	1) Check Pickup FFC Connection.		No.14
			2)	Exchange Pickup.
			3)	Check solder of IC601 circumference.
			4)	Exchange IC601.
			5)	Check solder of IC301 circumference.
			6)	Exchange IC301
			7)	Exchange Slider Motor.
12	4CCx	Data Slice Adjust NG.	1) Exchange Pickup.		No.12
		(RAM Only)	2) Exchange IC101(AFE).
			3) Exchange IC301(MPU & DSP).
13	4Dxx	Focus Deviation Adjust NG.	1) Check Pickup FFC Connection.		No.15
			2)	Exchange Pickup.
			3)	Check solder of IC301circumference.
			4) Exchange IC301(MPU & DSP).
14	182x	Home Position Adjust NG.	1) Check FFC Connection.		No.21
	01xx	(DVD-SL Only)	2) Check Slider FPC Connection.
			3)	Exchange Slider Motor.
			4)	Check solder of IC101circumference.
			5)	Exchange IC101(AFE).
15	52xx	Focus Offset Adjust NG.	1) Check Pickup FFC Connection.		No.16
		(DVD-R/RW, +R/RW)	2) Exchange Pickup.
			3)	Check solder of IC101circumference.
				(pin#1,2,3 pin#87-90,
			TE_Servo: R101, C101)
			4)	Exchange IC101(AFE).

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