Zenith XBR413 - Page 81

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Recognition Fail Case 2:DVD Fail
Check pick-up read power
was 0.9~1.1mW?
Go to “LD CHECK”.
Replace the IC302.
Replace the pick-up.
Replace the IC107
Replace the IC202.
Is IC302
pin 46(LDEN-DVD)level
was about 3.3V?
Is there
RF signal at CN101
pin 13,14.
Is there RF signal
at IC107 pin 99.
Check again after the
replace IC107.Is it OK?
Recognition Fail Case 3:
DVD±R/RW Fail
Is there WOBBLE
(IC107 pin 75)signal?
Is there WBLLPP
(IC202 pin 133)signal?
Replace the IC202.
Check the connection between
IC107 and IC202.
Replace the IC107.
OK
YES
NO
NO
NO
NO
NO
NO
YES
NO
YES
YES
YES
YES