Denon IN-Command AVR-X4000, Service Manual

Page: 98 / 224

VIDEO B'D flaw.
B
Extend DIGITAL B'D using a jig.
Check power supply voltage and I2C control signal of
video selector IC (IC511).
V+3.3V : J5043
V-5V : J5042
I2C(SCL) : J5046
I2C(SDA) : J5047
(VIDEO B'D)
Power supply IC (IC513) flaw.
Defective connection of SIDE CNT B'D (BN28B)
Video selector IC (IC511) flaw
Defective the parts between IC511 .
Defective the soldering video selector IC (IC511) or video
selector IC (IC511) flaw.
Check the signal input to video selector IC (IC511).
V : C5107
OMPONENT-Y : J5010
COMPONENT-Cb : J5007
COMPONENT-Cr : J5006
(VIDEO B'D)
Check the signal output from video selector IC (IC511).
(VIDEO B'D) to MONITOR to DIGITAL B'D
V : J5019 BN21B-17pin
OMPONENT-Y : J5021 BN21B-15pin
COMPONENT-Cb : J5028 BN21B-13pin
COMPONENT-Cr : J5029 BN21B-11pin
MONITOR OUT
Output terminal (JK511 or JK513) or pattern flaw.
HDMI OUT
Defective connection of FRONT CNT B'D (BN21B)
or FRONT CNT B'D pattern flaw
I2C communication wave form
CH1: CLK
CH1: DATA
NO
NO
NO
YES
YES
YES
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