LG Electronics 42LC2D(B), 32LC2D(B), 37LC2D(B) service manual No image

No image	Is the	YES		Is the input cable	NO	Attach the input
	Set ON?			attached?		cable(s)
	NO			YES
	Push the POWER
	ON key			Check the			What is			Power Error
				Condition of all	PASS
				Connectors, wafers,			the input signal
				I2C In the			mode?			FAIL
				system.
							AV3	Check CVBS	FAIL	Check 3.3V
								Signal at R144		At L110 on jack
								of jack board		board
								PASS		PASS
- 20				Check 24bit						Replace Jack board
-		PASS			PASS
	Check LVDS						Check Main_V	Check Sub_V
				RGB at AR700-
	Output of Cortez						At R309	At R302
				AR705
PASS
Check for S/W error	FAIL			FAIL			FAIL
	Replace Cortez						Check Q303
				Check Power				PASS
							Circuit and 9V
				Levels and crystal				Replace CXA2069
							at L300
	PASS
	Replace Hudson						FAIL	Correct the circuit
				FAIL
			Power Error