Service manual

51
13VT-R100/R150
13VT-CR10
NO NO NO NO
FLOW CHART NO.2-1OPERATION TROUBLESHOOTING RASTER TROUBLESHOOTING
FLOW CHART NO.2-2
Set cannot operate
YES
YES YES YES YES
Is 120V AC applied to line between K701 and K702?
Makesure pin (7) of T701 is about 170V DC at 120V AC Makesure +B voltage is about 130V (C730 ⊕ side)
Does pulse waveform exist at line between pin (1) and (2) of IC701?
Is AC cord connected?
Is 170V DC applied to C705?
Check T701 and adjacent parts.
Is 16V DC applied to pin (4) of IC701?
Check IC701 and R717.
Check IC701 and adjacent parts.
Check CRT connector GC1 until GC5 bias.
The Fuse is blown out again.
D701, D702, D703, D704, D705
Connect AC cord. Check F701.
Normal Normal
Check IC701.
Normal
Abnomal
IC401
Normal Normal
C880
Blown out.
Replace the Fuse.
Abnormal
R701
Abnormal
IC701, D727
Normal
Q601, Q602 and R603
AC cord broken.
NO
No raster
Check D701 thru D704, L701, and R701.