Pioneer KRL-46V Service Manual page 38

1
A
Does not the sound of the audio signal input to INPUT3 go out?
MINI AV_UNIT:
Is audio signal output from pin (5/IN3-L), (4/IN3-R) of input termi-
nal J901 to pin (3), (1) of connector P901?
TERMINAL UNIT:
Is audio signal input to pin (3/IN3-L), (1/IN3-R) of connector
P501?
B
Is audio signal input to pin (55/IN3-L), (56/IN3-R) of IC1404
(CODEC)?
Is CVBS signal detection signal V3_PLUG signal from pin (7) in
input terminal J901 normal?
Is V3_PLUG signal input to pin (2) of IC506 (VIDEO SELEC-
C
TOR)?
Refer to "No sound output in all modes".
Does not the sound of the audio signal input to INPUT4/5/6 (HDMI) go out?
Is picture of the signal input from INPUT4/5/6 displayed?
D
MAIN UNIT:
Is the HDMI_SPDIF audio signal output from pin (W12) of
IC3301 (VIDEO PROCESSOR) to pin (44) of connector
SC1101?
TERMINAL UNIT:
Is HDMI_SPDIF audio signal input from pin (44) of connector
SC501 to pin (5) of IC1404 (CODEC)?
E
Refer to "No sound output in all modes".
F
38
1
2
No sound from external input devices (2)
YES
YES
YES
YES
YES
No sound from external input devices (3)
YES
YES
YES
2
3
NO Check connection of between from J901 to P901 and the exter-
nal input device.
NO Check the connector (P901/P501).
NO Check the line between P501 and IC1404.
NO Check the connection to J901 and external devices.
NO Everything from V3_PLUG_LINE J901 to pin (2) of IC506 is
checked. (connector P901/P501 and etc.)
Refer to "Does not the picture of the HDMI signal input to INPUT
NO
4/5/6 go out?".
NO Check the line between IC3301 and SC1101, and their peripheral
circuits.
NO Check the line between SC501 and IC1404.
(SC1101/SC501, etc.)
KRL-46V
3
4
4