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3. NO PICTURE
No picture on screen video signal sou'tce is properly connected.
NO PICTURE
Does 60V appear between
NO
the cathode of 0502 and
Check 0502,T302,C111,
ground?
C112,C516
....
,.
YES
Does proper video signal
NO
appear at the #1 pin of
Check signal cable,VR101,
IC101?
C101,C102.
YES
Does proper video signal
NO
Does 12V appear between
NO
Check R125, 0104
appear at the #8 pin of
the #14 pin of IC101
C103, C104
IC101?
and ground
YES
I
Does 4.5Vp-p flyback pulse
NO
Check R313, R314,
appear at the #12 pin of
IC101,0302.
YES
IC101?
YES
I
Check IC101.
Is the waveform at the
NO
Check 0101,0103,0104,
to cathode of 0102 similar
0201,0101,0102,R111,
the waveform at the
R116,R117
#8 pin of IC101 except
blanking-pulses?
YES
Does the proper video
NO
signal appear at the
Check 0104,R120,R122,
collector of 01 04?
R123,R130.
YES
Check R121,S501,CRT,
CRT socket.
15
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