43
PG-M20S
PG-M20X
Checking of GA4 and Its Periphery
Select R, G and B individually on
the pattern menu in process mode.
Is picture outputted appropriately
in R, G and B?
Check pins (72), (52) and (32) of
SC8001 by oscilloscope.
These signals are MSB of B/G/R.
Check TL8106, TL8107, TL8108,
TL8109, TL81010 and TL81011
by oscilloscope.
Do the signals selected on the
pattern menu match with those
checked by oscilloscope?
Do the signals selected on the
pattern menu match with those
checked by oscilloscope?
Is there the clock (32.5 MHz)
signal at TL8114?
No
Checking of GA4 and its periphery
ends.
Yes
The DLP PWB is defective.
Yes
No
Yes
No
Is there the clock (32.5 MHz)
signal at TL8110?
Does the clock signal come to pin
(78) of SC8001?
Yes
No
No
IC8025 is defective.
IC8025 is defective.
IC8029 is defective.
Yes
IC8029 is defective.
No
X8005 is defective.
Yes
»
PC I/F Unit-7/12
Содержание AN-60KT
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