Caple C702G Service Manual Page 99

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7-11
5. ABNORMAL PICTURE
5-1. Horizontal Size
Measure the voltage at CRT anode.
Normally, the voltage is approx. 27kV.
NG
OK
Check the voltage at CNP pin 6 on the VIDEO PWB (PWE-567A).
NG
OK
NG
OK
fH 7
33.6kHz
36.6kHz
41.5kHz
45.8kHz
52.7kHz
57kHz
69.5kHz
82.6kHz 110kHz
101kHz
fH 3
fH 5
fH 1
fH 2
fH 6
49kHz
65.5kHz
fH 4
121kHz
130kHz
30.8kHz
Fig 5.1.1
CONTINUE
SW REG. failure (see item 13)
Check the voltage which is supplied to CPU
IC801, IC802, IC8G1, IC7A1or their ambient circuit failure
Check the horizontal frequency mode output (IC571 pins 471012) See Fig. 5.1.1
Check HV voltage
HV circuit failure (see item 6)
Check 8.5V line
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