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NO TELETEXT
Abnormal
Check the 5V line
to be correct.
NO RASTER
(SOUND OK)
NG
Check/Replace
T701.
Check the voltage
of ZD701 (5V)
Check the voltage of
HV and SCREEN of CPT.
Check/Replace
CPT Board.
Normal
Check if the video signal is
at pin 10 of IC702.
2
Check I
C BUS lines.
(SDA, SCL)
Check pin 51, 52, 53 and 54
of IC702.
Check/Replace IC503.
Check the voltage of
CPT Heater
Check the Heater pulse
at pin 9 of T701.
Check/Replace
Connector, FR459 and FR901.
NG
Check the
CVBS line.
Check/Replace
NG
IC702, 703, X701.
NG
Check/Replace
T701.
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