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E. H.OSC/DEF/HV Circuit Fault
No Raster
Check HV Protector
for operation
NG
OK
Disconnect C
Check the
Horizontal OSC
Synchronizing
with H. SYNC?
NG
OK~
-
Abnormal Picture Size
Abnormal Picture
( The HV protector circuitry makes an)
audible noize during operation
( Measure at TR502 BASE
)
on the DEF PWB PWE-173A
Check SW REG UNIT
(See item 0)
HV Feed Back circuit Failure
Free Running or
No Pulse
( HB1, HB2 disconnected.
)
TR517, TR5l8, D523 Failure
HV Protector circuit Failure
(
D508,D509,R548,R550,D2001 )
D2002, ZD200l, ZD2002, TR2001
TR2002 Failure
H output circuit Failure
(
D501, D503, D504, F501, R529)
:lD502, IC502, TR504, TR507
TR508, TR509 Failure
No Blanking works
(See item D)
H. Drive circuit Failure
(R520, TR501-TR503 Failure)
-48-
( continue)
IC501 Failure
or
H F/V converter and
associated circuit
Failure
(See item F)
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