Marantz SR7010 Service Manual page 102

B
VIDEO PCB faulty.
Extend the DIGITAL PCB using the jig.
Check power supply voltage and I2C control signal of
video selector IC. (IC511)
V+3.3V
V-5V
I2C(SCL)
I2C(SDA)
(VIDEO PCB)
Check the signal input to video selector IC. (IC511)
V
OMPONENT-Y
COMPONENT-Cb
COMPONENT-Cr
(VIDEO PCB)
Check the signal output from video selector IC. (IC511)
(VIDEO PCB) to MONITOR
V
OMPONENT-Y
COMPONENT-Cb
COMPONENT-Cr
MONITOR OUT
Output terminal (JK511 or JK513) or pattern flaw.
HDMI OUT
Defective connection of FRONT CNT PCB (BN21B) or
FRONT CNT PCB pattern flaw.
I2C communication wave form
YES
: J5043
: J5042
: J5046
: J5047
YES
: C5107
: J5010
: J5007
: J5006
YES
to DIGITAL PCB
: J5019 BN21B-17pin
: J5021 BN21B-15pin
: J5028 BN21B-13pin
: J5029 BN21B-11pin
YES
CH1: CLK
CH1: DATA
NO
Power supply IC (IC513) flaw.
SIDE CNT PCB(BN28B) flaw.
Video selector IC (IC511) faulty.
NO
The circuit between IC511 are faulty.
NO
Defective the soldering IC (IC511) or IC (IC511) flaw.
102