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5. Horizontal Output Circuit
13Vpp
Trouble in Horizontal
output circuit
(No Raster)
Is the
B+ line voltage
normal?
12V
Is Q505 base
waveform
normal?
Is the Collector
waveform of
Q502 or Q503
12Vpp
normal?
0.7V
Is IC501 pin17
H.OSC waveform
0.2V
normal?
Is IC501pin16
voltage about
12V?
the input H.Sync
correct?
Trouble in H.Sync
No
Yes
Yes
NO
Yes
NO
Yes
NO
No
Yes
Is
Yes
NO
20
Refer to abnormal H.Size.
Trouble in Q505.
Trouble in Q504, T506.
Trouble in Q502, Q503.
Trouble in Power Supply Unit.
Trouble in IC501.
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