LG Electronics RD-JT41 5. Translation Board Trouble Shooting Guide

LG RD-JT40/41 Service Manual

5. Translation Board Trouble Shooting Guide

D S 6 6 0 T r a n s l a t i o n B o a r d T r o u b l e S h o o t i n g G u i d e

V C C C P U O K

P O W E R O N A f u n c t i o n O K ?

Y e s

V C C , 1 2 V

f u n c t i o n O K ?

		Y	e	s
A	b	n	o	r m	a l
f u		n	c	t i o	n
		O	K	?
		Y	e	s
L A	M		P	E N	- S

f u n c t i o n O K ?

Y e s

L A M P _ L I T

f u n c t i o n O K ?

			Y	e	s
I R 0			f u n c t i o n
		O		K	?
		Y		e	s
L	E		D	_	1	~	3 ,
F	A	N		_	H	S	O

f u n c t i o n O K ?

			Y	e	s
V	P	O		S	R	A	I L ,
V	N		E	G	R	A	I L

f u n c t i o n O K ?

Y e s

			1		. Q		8	0		3
N	o
			2		. Q 7 0 3 , Q 7 0 4
			1		. Q		7	0		5
			2		. Q		7	0		6
N	o
			3		. Q		7	0		1
			4		. Q		7	0		2
N	o			I C		8	0	6
			1		. Q		8	0		2
N	o
			2		. I C		8	0		5
			1		. Q		7	0		7
N	o
			2		. Q		7	0		8
			1		. I C		8	0		2
N	o
			2		. I C		8	0		3
	N	o		I C		8	0	2
				1	.	Q	1		5
				2	.	Q	9
				3	.	D	8
				4	.	D	1		0
	N	o
				5	.	U	2
				6	.	D	1		2
				7	.	D	1		1
				8	.	D	9

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