Commodore 1940 - Page 19

8. Vertical Line
10V~
Tv
·1
45VP-P~
Tv
~I
Vertica:llins
YES
YES
Confirm DY Open
D.Y connector open
or P.C.S pattern open
16
NO
Refer to trouble in
No vertical sync.
NO Trouble in +24V
line
NO
Trouble in IC402 and
its peripheral circuit.