Sharp Aquos LC-45GD1E, Service Manual

Page: 51 / 281

51
TU-45GD1E
LC-45GD1E
TROUBLE SHOOTING TABLE
(Continued)
No sound (2) (On the reception of TV broadcasting)
No Display audio output.
1) Is a Headphone connected?
•••
Disconnect it.
2) In the MENU-Option, is "Audio Out" set to "V
ariable"?
•••
Set it "Fixed".
3) In the MENU-Option, is "Centre Channel input" set to "on"?
•••
Set it "of
f".
4) In the MENU-Set up, is "Speaker Setup" set to "SPEAKER-B"?
•••
Set it "SPEAKER-A".
YES
NO NO NO NO
YES YES YES
NO
In the
AUDIO-IF PWB : Is the
AUDIO
signal coming to RELA
Y
R
Y6000 and
R
Y
6001?
In the
AUDIO-IF PWB : Is the
AUDIO
signal input to SC-Connector (P6003)? Is the
AUDIO signal input to the 1 bit-
AMP
UNIT?
In the
A
V
UNIT
: Is the
AUDIO signal
output to Pins (28)(29) of IC2514? Confirm IC2514 (CODEC), IC2501 (MSP) and peripheral circuits.
Is the
AUDIO signal output to DISPLA
Y-
OUTPUT3 (SC6001)? Is the connection of System cable (black) normal? (Display Side) Display Side : Is the
AUDIO signal input to
AUDIO-Connector (J5301) and SO- Connector (P5301)? Display Side : Is the connection of SO- Connector (P601) and SP-TERMINAL-A (P603) in the MOT
OR-CONT
-UNIT
normal? Are the connections in the SP-UNIT
and
the Speaker normal?
(A
VC Side)
(A
VC Side)