Compaq CRT Monitor s7500 Service Guide - Page 24

Out of Horizontal Synchronization, 6 Out of Vertical Synchronization

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Page 24 highlights

5-5 Out of Horizontal Synchronization Out of Horizontal Synchronization HP S7500/MV7500/CV7500 Horizontal sync present at No pin 15 of I401 Yes Check I401 pin 8 H. output frequency & pin 29 No waveform Yes Check Q401, T401, Q402, R424, D401 5-6 Out of Vertical Synchronization Out of Vorizontal Synchronization Check or replace the signal cable or H. sync pin 41 of I701. Check or replace I401, C406 Vorizontal sync present at pin 14 of I401 Yes Check signal cable & V. sync No pin 42 of I701. Check I401 pin 24 waveform No Check or replace I401, Yes Check I401 pin 13 & pin 14. Page 22

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Page 22
HP S7500/MV7500/CV7500
5-5 Out of Horizontal Synchronization
5-6 Out of Vertical Synchronization
Check or replace
the signal cable o
H. sync pin 41
of I701.
Check or replace
I401, C406
Yes
Horizontal
sync present at
pin 15 of I401
Check
I401 pin 8 H. output
frequency & pin 29
waveform
Out of Horizontal
Synchronization
No
Yes
No
Check Q401,
T401, Q402,
R424, D401
Check signal
cable & V. sync
pin 42
of I701.
Check or replace
I401,
Yes
Vorizontal
sync present at
pin 14 of I401
Check
I401 pin 24 waveform
Out of Vorizontal
Synchronization
No
Yes
No
Check I401 pin 13 & pin
14.