Read Sony AVD-K150B / AVD-K150E / AVD-K150G / AVD-K150N / AVD-K150R / DAV-D150B / DAV-D150E / DAV-D150G / DAV-D150N Service Manual online
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AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT
(4) When the Video signal doesn’t appear on the screen in REC Mode,
Is the EE signal normal?
Is 5.2VT/5.3VA applied to the
IC301 Pins24,42,55,72,91?
IC301 Pins24,42,55,72,91?
Does the RF signal appear
at the IC301 Pin78?
at the IC301 Pin78?
Check EE Mode.
Check the System of REC
‘H’. (the IC501 Pin47
/ the D301)
‘H’. (the IC501 Pin47
/ the D301)
Replace the IC301.
Check the line of the 5.2VT/
5.3VA Line.(Power Circuit)
5.3VA Line.(Power Circuit)
Check PB Mode.
Is the REC ‘H’ signal
(about 4V) applied to the
IC301 Pin80?
(about 4V) applied to the
IC301 Pin80?
Check the circuit of the
IC301 Pins85, 86.
IC301 Pins85, 86.
Check REC Luminance
Pass & Color Pass.
Pass & Color Pass.
Does PB Mdoe operate
normally?
normally?
Does the REC RF signal
appear at the IC301
Pins88,89,94,95?
appear at the IC301
Pins88,89,94,95?
Check the Drum &
Drum Connector
Drum Connector
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
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