Daewoo 719B Service Manual page 23

5. Horizontal Output Circuit
11V
0V
10V
0V
66V
Trouble in Horizontal
output circuit
(No Raster
Is the
B+line voltage
over 45V?
Yes
Is the H-out
waveform of IC501
normal?
Yes
Is the Collector
wave form of
Q504 normal?
Yes
Is the Collector
waveform of
Q505 normal?
Yes
Trouble in Q505 and
its ambient circuit.
21
Trouble in B+ Booster Circuit
No
(Check the B+section of IC501)
No
Trouble in IC501
No
Trouble in Q504
No
Trouble in Q505 and its
ambient circuit.