Denon AVR-X4000 - Page 98

VIDEO B'D aw.
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) aw.
Defective connection of SIDE CNT B'D (BN28B)
Video selector IC (IC511) aw
Defective the parts between IC511 .
Defective the soldering video selector IC (IC511) or video
selector IC (IC511) aw.
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 aw.
HDMI OUT
Defective connection of FRONT CNT B'D (BN21B)
or FRONT CNT B'D pattern aw
I2C communication wave form
CH1: CLK
CH1: DATA
NO
NO
NO
YES
YES
YES
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