Zenith DVR313 Series, Руководство по обслуживанию

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3-3
3. No Audio Output in DISC Play.
Check R120,FFC CABLE
signal flow.
YES
Check IC704 power supply
and ambient circuits.
NO
No output of IC710.
IC704 -46:HIGH ?
(LOW:AUDIO MUTE )
IC710 -1 :LOW?
(DAC RESET status)
PN6701
-26 :LOW status in the Tuner
Mode?(ADC1_SEL)
Is
IC710 -8,9 :I2C signal normal?
Is
IC710 -3,4,5,6:signal normal?
Check IC2084 -11, 38 signal
flow.
Check IC 2072 -2,3,18,19
Check R1A1,R118,R119,R121
Check IC710 power and
ambient circuits
Check IC714 power supply
and ambient circuits.
Check IC2078 16PIN,R264
NO
NO NO
Is
PN6701 -2 signal normal?
Check TR701,JK704
power and ambient circuits.
Check IC711 power, ambient
circuits.
NO NO
NO
NO
YES
YES
YES YES
YES
YES
4. No Optical / Digital Audio Output