Analog Video - Denon AVR-X4000 Service Manual

2. Analog video

Perform the operation below beforehand.
b Check that the connection cable and the Monitor are normal.
b Set VIDEO CONVERT ON.
b Set Function to the CBL/SAT
A
CVBS,COMPONENT
Check power supply voltage.
V+5V : CN28B-6pin
V-5V : CN28B-8pin
(SIDE CNT B'D)
YES
Check of the I2C control signal
for video selector IC (IC511).
I2C(SCL) :BN21A-6pin(AVSCL)
I2C(SDA) :BN21A-4pin(AVSDA)
See the sample wave form
(DIGITAL B'D)
YES
Check the input signal to video decoder IC (IC121).
V
COMPONENT-Y
COMPONENT-Cb : R1244
COMPONENT-Cr : R1246
(DIGITAL B'D)
YES
· CVBS Monitor Out
COMPONENT Monitor Out ⇒ To B
· HDMI Out ⇒ To Troubleshooting "HDMI/DVI"
MONITOR OUT (CVBS/Component/HDMI) output NG
Input
CVBS
Input
(98 page).
: R1243
: R1245
Input
COMPONENT
To A
NO
· Defective connection of SIDE CNT B'D (BN77B)
· REGULATOR(SPEAKER) B'D flaw
NO
DIGITAL B'D flaw.
· Defective connection of FRONT CNT B'D
NO
(CN21A).
·The parts between VIDEO B'D flaw. ⇒ To B
97