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2. VIDEO SIGNAL SECTION
FLOW CHART NO.22
Picture does not appear normally. (Tuner input (Analog)/ Video input/S-Video input)
Are the video signals inputted to the specific
input terminal?
Are the luminance signals inputted to the
Pin(76) of IC1202?
Are the chrominance signals inputted to the
Pin(57) of IC1202?
Are the component video signals inputted to the
Pin(71) of IC1202?
Are the component video signals inputted to the
Pin(67) of IC1202?
Yes
Replace IC1202 or LCD MODULE.
FLOW CHART NO.23
Picture does not appear normally. (Tuner input (Digital))
Are the DIF signals outputted to the Pins(11, 12) of CN62?
Yes
Are the video signals outputted to the specific
output terminal?
Are the Y signals outputted to the Pin(18) of
CN62?
Are the Pb signals outputted to the Pin(20) of
CN62?
Are the Pr signals outputted to the Pin(19) of
CN62?
Yes
Are the video signals inputted to the specific
input terminal?
Are the Y signals inputted to the Pin(73) of
IC1202?
Are the Pb signals inputted to the Pin(54) of
IC1202?
Are the Pr signals inputted to the Pin(64) of
IC1202?
Yes
Replace IC1202 or LCD MODULE.
FLOW CHART NO.24
Picture does not appear normally. (Y / Pb / Pr input)
Are the video signals outputted to the specific
input terminal?
Are the Y signals outputted to the Pin(75) of
IC1202?
Are the Pb signals outputted to the Pin(56) of
IC1202?
Are the Pr signals outputted to the Pin(66) of
IC1202?
Yes
Replace IC1202 or LCD MODULE.
Check the line between each pin of IC1202 and input
terminal and service it if defective.
No
Check the line between Pin(76) of IC1202 and JK701,
and service it if defective.
No
Check the line between Pin(57) of IC1202 and JK701,
and service it if defective.
No
Check the line between Pin(71) of IC1202 and JK703,
and service it if defective.
No
Check the line between Pin(67) of IC1202 and TU61,
and service it if defective.
No
Check the line between Pin(11, 12) of CN62 and
TU61, and service it if defective.
No
Replace DTV MODULE CBA UNIT.
No
Check the line between Pin(73) of IC1202 and
Pin(18) of CN62, and service it if defective.
No
Check the line between Pin(54) of IC1202 and
Pin(20) of CN62, and service it if defective.
No
Check the line between Pin(64) of IC1202 and
Pin(19) of CN62, and service it if defective.
Check the line between each input terminal and
IC1202 and service it if defective.
No
Check the line between JK706 and Pin(75)
of IC1202 , and service it if defective.
No
Check the line between JK707 and Pin(56)
of IC1202 , and service it if defective.
No
Check the line between JK708 and Pin(66)
of IC1202 , and service it if defective.
7-8
A7144_45TS
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