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XG-V10XE
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-6
Checking the GA4 peripherals
Select R, G and B individually
on the pattern menu.
Are the R, G and B video
outputs as specified?
Measure the FB8004, FB8005,
FB8006, FB80010, FB8011
and FB8012 outputs on
oscilloscope screen.
Are the pattern menu-selected
settings and the above
measurements consistent?
Are there clocks at pins (31),
(32) and (33) of IC8050 and
IC8051?
Measure the TL8106 thru
TL8111 outputs on
oscilloscope screen.
Are the pattern menu-selected
settings and the above
measurements consistent?
GA4 defective.
Yes
No
GA4 peripherals checking
complete.
Yes
No
Output PWB defective.
No
Yes
Is there clock at TL8114?
Is there 54-MHz clock at
FL8110?
CVIC_IC defective.
No
Yes
CVIC_IC defective.
52
Yes
No
GA4 defective.
No
Yes
X8005 (quartz oscillator)
defective.
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