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51
13VT-R100/R150
13VT-CR10
NO
NO
NO
NO
FLOW CHART NO.2-1
OPERATION 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
MaB 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.
Summary of Contents for 13VT-CR10
Page 64: ...71 13VT R100 R150 13VT CR10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit ...
Page 72: ...85 13VT R100 R150 13VT CR10 6 5 4 3 2 1 A B C D E F G H PWB C POWER Unit Component Side ...
Page 73: ...86 13VT R100 R150 13VT CR10 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Component Side ...
Page 74: ...87 13VT R100 R150 13VT CR10 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Chip Parts Side ...