Zenith DVR313 Series, Service Manual

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3-10
11. No Signal of DV(IEEE 1394) input (screen/audio)
NO
NO
IC3048 -78:HIGH?
(/RST_PHY )
Check IC3048 -2 Clock?
BIO_PHY_CLK
Check IC2084 -8,41 =>
IC2078 -12,13 signal flow.
Check X301 Clock.
24.576 MHz
Check DV_JACK and
CABLE connection.
Check IC3048 -42, 43, 4,
45 signal input.
YES
YES
YES
YES
NO
Check IC3048 =>IC1009
BIO_PHY_DATA/CLK
Signal.
Check IC3048 power and
ambient circuits.
YES
Check <No signal of COMPONENT,
COMPOSIT/S-VIDEO screen in
DISC play>