Orion DTV2784 Service Manual page 24

NO VERTICAL
Is the waveform at pin
6 of CP401 normal ?
No
Is the waveform at pin
2 of IC401 normal ?
No
Is the waveform at pin 5
of IC401 normal ?
No
Is the waveform at pin
19 of IC601 normal ?
No
Check the associated circuit of IC601.
TROUBLESHOOTING GUIDE
Yes
Yes
Yes
Is the voltage at pin 6
of IC401 25V ?
Check the 25V line.
Yes
E-4
Yes
No
Check DY.
Check the circuit from pin 2 of
IC401 to CP401.
Check IC401 and check associated
circuit.
Check the circuit from pin 19 of
IC601 to pin 5 of IC401.