Checking The Resolution Change Ic Movement - HP f1723 Service Manual

8. Checking the resolution change IC movement

Is there +3.3V supply on I304 pin 124,136,132,128, 113, 108, 104, 106, 110,
Is 14.318MHz clock input to I304 pin
102 and pin 103 at TTL level?
Failure point
I304 failure
115, 14, 30, 90, 143, 157.
NG
Proceed "Checking the DC/DC converter circuit" section.
OK
Is there +2.5V supply on I304 pin 119, 117, 20, 43, 79, 98, 138.
NG
Proceed "Checking the DC/DC converter circuit" section.
OK
Is 14.318MHz clock output from
NG
X301 pin 1 at TTL level?
NG
OK
OK
Failure point
Print wire broke between X301 pin 1
and I304 pin 102.
f1723 / FP7317 / L1702 / vf17 / FP17
Failure point
X301 failure
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