LG FFH-164, Manual

Page: 13 / 42

- 2-7 -
P-SENS PART
Does +5V appear at
ZD205(+)?
Check the pattern of
IC601 Pin .
Check the waveform
of D212 (+).
Check the and
replace ZD205.
Replace the D212
YES
YES
NO
NO
26
Power Circuit
Check the Fuse
Check the DC output
of C299(+)
Check the DC 12V
Output of IC204
Check the DC 6.2V
output of IC202
Check the DC 12V
Output of IC203
Check the 5.0V of Q207 “C”
(CD FUNCTION)
END
Replace the Fuse
Check the AC output of H202 pin 1, 4
Check the AC output of
H202 pin 1, 4
Replace the Q203
Replace the D208, D209,
D210, D211
Check or Replace the
D208,D209, D210, D211.
Check or Replace the
D203, D205
Check the “High” of
Q202 “B”
Check the “High” of Q208
Replace the Q207
Replace the Transformer
Replace the Transformer
Check the “High” of
CN203 Pin 11
Check the “High” of
CN203 Pin 8
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO