Service manual

51
13VT-N100
13VT-N150
13VT-CN10
NO NO NO NO
FLOW CHART NO.2-1
FLOW CHART NO.2-2
Set not operating
YES
YES YES YES YES
Is 120V AC applied to line between K701 and K702?
Pin (7) of T701 voltage check about: 170V DC at 120V AC +B voltage check about: 115.0V (C730 ⊕
side)
Does pulse waveform exist at line between pin (1) and (2) of IC701?
Check D701 thru D704, L701, and R701.
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, R717.
Check IC701 and adjacent parts.
CRT connector GC1~GC5 bias check
The Fuse is again blown out.
D701, D702, D703, D704, D705
Connect AC cord. F701 Check
Normal Normal
IC701, Check
Normal
Abnomal
IC401 (iX3253CE)
Normal Normal
C880
Blown out
Replace the Fuse
Abnormal
R701
Abnormal
IC701, D727
Normal
Q601, Q602 and R603
AC cord broken.
NO RASTER
TROUBLESHOOTING OF TV SECTION