Zenith DVR313 Series, Руководство по обслуживанию

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3-8
YES
NO
NO
NO
NO NO
NO
NO
Check V.MUTE TR (Q714,
Q715 ) ambient circuits. NO
Q714 Collector :LOW?
IC4003 -8 :HIGH ?
/RST 7104
Check IC4003 -14,15
I2C CLK, DATA in resetting.
IC4003 -19,20,36
Check clock signal input.
Check
IC4002 =>IC4003
PD0 ~PD7 signal.
IC1099 =>IC4002 -37
VO_CLK signal check?
Check IC4009 -94 :VI_CLK0.
Check
VO_CLK and IC4002 -22
Phase reversion?
IC704 -52 :HIGH ?
(VIDEO MUTE )
Check IC712 power and
ambient circuits.
No signal after S-VIDEO:Y
signal?
Check V. Buffer TR :Q717
power and ambient circuits.
Check IC2084-3,46 =>
IC2081-4,5 signal flow.
Check IC2033-8,9 &
IC2001-8,9,10 signal flow.
Check X401 Clock generation.
No signal after COMPOSIT?
Check V. Buffer TR :Q716
power and ambient circuits.
No signal after S-VIDEO :C
signal?
Check R772, R724.
IC4002 power and
ambient circuits. Check IC1099 =>IC4002
VO_D0 ~VO_D15 signal.
YES
YES
YES
YES
YES
YES YES YES
YES
YES
9. No Signal of COMPOSIT / S-VIDEO Screen in Disc Play