3. Y/C CIRCUIT
(4) When the Video signal doesnOt appear on the screen in REC Mode,
NO
Is the EE signal normal?Check EE Mode.
YES
Is 5V applied to the IC301NOCheck the line of the 5.2V
Pins 16, 40, 55, 58, 87?Line.(Power Circuit)
YES
NO
Does PB Mdoe operate
Check PB Mode.
normally?
YES
Is the REC �HOsignalCheck the System of REC
NO
Does the RF signal appearNO
(about 4V) applied to the�HO. (the IC501 Pin 79
at the IC301 Pin 12?
IC 301 Pin 30?/ the D301)
YES
YES
Check REC Luminance
YESReplace the IC301.
Pass & Color Pass.
NODoes the REC RF signal
Check the circuit of the YES
appear at the IC301
IC301 Pin 90, 92, 94.
Pin 90?
YES
Check the Drum &
Drum Connector
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