Denon AVR-3312

83
Input
CVBS,S,COMPONENT
A
Check on set value of each IC.
Is they the following voltage
values?
VSDA : I2C(AVSDA)
VSCL : I2C(AVSCL)
Refer to 85 page
T15 : H(5V)
T14 : L(0V)
Is the DET signal able to
detect?
Is the signal input to video
decoder (IC121)?
<DET signal>
V_DET : H(3.3V)
S_DET : H(3.3V)
COMP_DET : H(3.3V)
<Input signal>
V : C1256
S(Y) : C1308
S(C) : C1309
COMPONENT(Y) : C1319
COMPONENT(Cb) : C1318
COMPONENT(Cr) : C1317
FRONT CONNECTOR B'D aw
or defective connection of the
connector.
The parts between
CONNETOR(CN21B) and
IC121 are defective
VIDEO B'D aw.
V/COMPONENT INPUT : B
S INPUT : C
REGULATOR B'D aw.
VIDEO B'D and REGULATOR
B'D and connection of the wire
are defective.
FRONT CONNECTOR B'D aw
or defective connection of the
connector.
VIDEO B'D aw : D
HDMI B'D aw.
The parts between
CONNETOR(CN23B) and
IC151 are defective
HDMI B'D aw.
NO
NO
YES
YES
Is the power supply voltage
correctly output?
V+5V : CN931-4pin
V-5V : CN931-1pin
NO
NO
YES
YES
Is the signal output from video
encoder (IC151).
V : En_CVBS
COMPONENT(Y) : En_Y
COMPONENT(Cb) : En_Pb
COMPONENT(Cr) : En_Pr