LG Electronics GSA-4165B Adjusting Error during Disc Load Sequence Lead in Error, SSB Byte21,22

2. Adjusting Error during Disc Load Sequence (Lead in Error)

No.	Error Code	Contents of fail	Fail Analysis		Block Diagram
	SSB Byte21,22
1	42xx	Circuit Offset Adjust NG.	1) Check Pickup FFC Connection.		No.04
			2)	Check solder of IC101circumference .
				(pin#,1,2,3 pin#87-90,
				FE_Servo: R102, C405
				TE_Servo: R101, C101
				PE_Servo: R103, C406)
			3)	Exchange IC101(AFE).
			4)	Exchange Pickup.
			5) Exchange IC301(MPU & DSP).
2	452x	Focus Amp Adjust NG.	1) Check DVD-Dual Disc.		No.05
		(DVD-DL Only)	2) Check Pickup FCC Connection.
			3)	Check solder of IC101circumference.
				(pin#1,2,3 pin#87-90,
				FE_Servo: R102, C405)
			4)	Check Slider FPC Connection.
			5)	Exchange IC101(AFE).
			6)	Exchange IC601(Driver).
			7) Exchange IC301(MPU & DSP).
3	450x	Focus Amp Adjust NG.	1) Check Pickup FFC Connection.		No.06
	451x	Total Amp Adjust NG.	2) Check solder of IC101circumference.
	454x			(pin#1,2,3 pin#87-90,
				FE_Servo: R102, C405
				PE_Servo: R103, C406)
			3)	Exchange Pickup.
			4)	Exchange IC101(AFE).
			5) Exchange IC301(MPU & DSP).
4	458x	Tracking Amp Adjust NG.	1) Check Pickup FFC Connection.		No.07
			2)	Exchange Pickup.
			3)	Check solder of IC101circumference.
				(pin#1,2,3 pin#87-90,
				TE_Servo: R101, C101)
			4)	Exchange IC101(AFE).
			5) Exchange IC301(MPU & DSP).
5	47xx	Servo Loop Gain Adjust NG.	47XA: Disc Unmatch(Exchange Disc).		No.08
			1)	Check Pickup FFC Connection.
			2)	Exchange Pickup (Signal Noisy).
			3)	Check solder of IC101circumference.
				(pin#1,2,3 pin#87-90,
				FE_Servo: R102, C405
				TE_Servo: R101, C101)
			4)	Exchange IC101(AFE).
			5) Exchange IC301(MPU & DSP).
6	49xx	Unwritten Slice Level Adjust NG.	4906: RAM Disc NG (Exchange Disc).		N0.09
		(RAM Only)	1) Check solder of IC101circumference.
				(pin#1,2,3 pin#87-90)
			2)	Exchange IC101(AFE).
			3) Exchange IC301(MPU & DSP).

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