Orion DTV2784 Service Manual page 23

NO COLOR
Are the waveform at pins 6,
8 and 11 of J801 normal ?
No
Are the waveform at pins 3,
4 and 5 of CP802 normal ?
No
Are the waveform at
pins 14, 15 and 16 of
IC601 normal ?
No
Is the pulse of crystal
X601 normal ?
No
Change X601.
TROUBLESHOOTING GUIDE
Yes
Yes
Are the waveforms at the
Yes
input of Q801~Q805 and
Q806 normal ?
Check IC601 and associated circuit.
Yes
Check the associated circuit of IC601.
E-3
Yes
No
Defect of CRT or contact defects
of J801.
Check the output circuit and
associated circuit.
Check Q801~Q806 and
associated circuit.