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Check +B voltage
at Pin1 of P805A.
Is the voltage at
Pin 15,17 of IC501 3.3V?
Does the square
waveform from pin50
of IC501 appear?
Is the waveform at
collector of Q402 normal?
Is the waveform of collector
of Q403 normal?
Check/Replace
T401.
Check/Replace
F801, D802,
IC801,IC802.
Check/Replace
D802.
Check/Replace
D805,Q801,
ZD801.
Check/Replace
IC501
Check/Replace
Q402, T401.
Check/Replace
Q403.
Check 5V, 9V,
12V lines
Check I
2
C
Bus lines
(SDA, SCL)
Check F801.
Check the voltage
of C812(+).
Check the voltage
at pin 4 of IC801.
Check/Replace IC887, IC871.
Check the secondary voltage
are shorted
Normal
0V
OK
6
~
8V
Open
0V
Lower than 6V
No
No
No
No
Yes
Yes
Yes
Yes
Yes
8.NO RASTER
All manuals and user guides at all-guides.com
Содержание PT-43A80
Страница 28: ... 28 PRINTED CIRCUIT BOARD SIGNAL All manuals and user guides at all guides com ...
Страница 30: ... 30 MAIN2 DEF All manuals and user guides at all guides com ...
Страница 32: ... 32 SMPS POWER SWITCH PRE AMP All manuals and user guides at all guides com ...
Страница 33: ... 33 CPT CONV OUT All manuals and user guides at all guides com ...
Страница 34: ... 34 PIP SIDE AV CONTROL All manuals and user guides at all guides com ...
Страница 35: ... 35 VM TOP VM BOTTOM All manuals and user guides at all guides com ...
Страница 37: ... 37 SGS THOMSON CONVERGENCE TOP SGS THOMSON CONVERGENCE BOTTOM All manuals and user guides at all guides com ...
Страница 38: ... 38 AV TOP AV BOTTOM All manuals and user guides at all guides com ...
Страница 67: ...P NO 3854VA80B SMPS DEF CPT VM DATE 2000 11 30 All manuals and user guides at all guides com ...
Страница 68: ...All manuals and user guides at all guides com ...
Страница 69: ...Oct 2000 Printed in Korea P NO 3828VD0080A All manuals and user guides at all guides com ...