Zenith XBR411 - Page 83

3-106
Recognition Fail Case 2:DVD Fail
Check pick-up read power
was 0.9~1.1mW?
Go to “LD CHECK”.
Replace the IC301.
Replace the pick-up.
Replace the IC106
Replace the IC201.
Is IC301
pin 46(LDEN-DVD)level
was about 0V?
Is there
RF signal at CN102
pin 13,14.
Is there RF signal
at IC106 pin 95.
Check again after the
replace IC106.Is it OK?
Recognition Fail Case 3:
DVD±R/RW Fail
Is there AWOBBLE
(IC106 pin 81)signal?
Is there WBLLPP
(IC201 pin 113)signal?
Replace the IC201.
Check the connection between
IC106 and IC201.
Replace the IC106.
OK
YES
NO
NO
NO
NO
NO
NO
YES
NO
YES
YES
YES
YES