I2C communication wave form
CH1: CLK
CH1: DATA
The VIDEO PCB is faulty.
B
Use the jigs to extend the DIGITAL PCB.
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 PCB)
Power supply IC (IC513) flaw.
SIDE CNT PCB(BN28B) flaw.
Video selector IC(IC511) の flaw.
The circuit between IC511 are faulty.
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 PCB)
Check the signal output from video selector IC. (IC511)
(VIDEO PCB) to MONITOR to DIGITAL PCB
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 PCB (BN21B) or
FRONT CNT PCB pattern flaw.
NO
NO
NO
YES
YES
YES
YES
106
Summary of Contents for SR7009/FN
Page 8: ...Personal notes 8 ...
Page 27: ...Personal notes 27 ...
Page 73: ...Personal notes Personal notes 73 ...
Page 201: ...AK5358BET DIGITAL IC306 AK5358BET Pin Function 201 ...
Page 206: ...NJW1194A INPUT IC484 IC489 BLOCK DIAGRAM 206 ...
Page 207: ...2 FL DISPLAY FLD GP1261AI FRONT FL602 PIN CONNECTION PATTERN DETAIL 207 ...