Service manual

19
5. Horizontal Output Circuit
Is the
B+line voltage
over 175V?
Is the H-out
waveform of IC501
normal?
Trouble in IC501
Trouble in Horizontal
output circuit
(No Raster)
Yes
No
Is the Gate wave
form of
Q553 normal?
Yes
Yes
Yes
Trouble in Q553
Trouble in Q551, Q552
No
No
No
Trouble in Q554 and
its ambient circuit.
10V
0V
11V
0V
66V
Is the Drain
waveform of
Q553 normal?
Trouble in 175V line.