Read LG 42LC2D (CHASSIS:LD61C) Service Manual online
- 14 -
TROUBLESHOOTING
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Push the POWER
ON key
Check for S/W error
Replace Cortez
Replace Hudson
Power Error
Replace CXA2069
Correct the circuit
Attach the input
cable(s)
Change the Tuner
Correct the circuit
RF
Power Error
Is the Set ON?
Is the input
cable attached?
What is
the input signal
mode?
Check Vout
Signal at pin 9.
Of Tuner
Check 33V
And 5V at pin
7,6 resp. of
Tuner
Check Vout
Signal at C230
Check Sub_V
At R302
Check Main_V
At R309
Check 24bit
RGB at AR700-
AR705
Check LVDS
Output of Cortez
Check Power
Levels and crystal
Check Q303
Circuit and 9V
at L300
Check the
Condition of all
Connectors, wafers,
I2C In the
system.
YES
NO
NO
YES
PASS
FAIL
FAIL
PASS
PASS
FAIL
PASS
PASS
PASS
PASS
FAIL
FAIL
PASS
FAIL
FAIL
PASS
FAIL
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