- 15 -
Check if heater element is lighting.
Check the heater voltage.
Increase the screen
Check/Replace
FR442,R910.
Check/Replace
CPT.
Check/Replace
Q503,504,505.
Check the waveform
at pin 20,21,22 of IC501S.
Check/Replace
IC901,902,903.
Check/Replace
IC101.
Retrace line is
Screen is black.
visible.
Check the waveform
at pin 3 of ic901,902,903
Check the waveform
at pin 62,63,64 of IC501S.
(RGB out)
Check the waveform
at pin 7 of IC901,902,903.
Check FBT & CPT socket
& CPT.
voltage of FBT.
Check/Replace
IC501S.
Check the waveform
at pin 2,140,143 of IC101S.
Check the waveform at
PIN100 of IC101S.(CVBS4)
Check the waveform at
PIN 38,41,46 of IC102S
NO
YES
YES
YES
NO
NO
NO
NO
YES
Check/Replace
IC401S,FL201S,202S,203S
Check/Replace
IC102S.
NO
YES
YES
Check/Replace
IC101S.
Check the waveform at
Pin2 of P213B.(Vmain)
NO
YES
Check/Replace
IC201S.
Check the waveform at
TU101,Q108.
NO
YES
Summary of Contents for Lafinion 82W
Page 13: ... 13 ...
Page 19: ...MEMO 19 ...
Page 20: ... 20 PRINTED CIRCUIT BOARD MAIN ...
Page 22: ... 22 MICOM TOP MICOM BOTTOM CONTROL ...
Page 23: ... 23 100Hz TOP 100Hz BOTTOM ...
Page 24: ... 24 CPT SOUND POWER SIDE A V ...
Page 25: ... 25 BLOCK DIAGRAM 1 MAIN ...
Page 26: ... 26 2 100HZ PROGRESSIVE ...
Page 27: ... 27 3 MICOM ...
Page 30: ...SVC SHEET 3854V A0123A S1 SVC SHEET SVC SHEET ...