Read Sharp LC-45GD1E (serv.man29) Service Manual online
50
TU-45GD1E
LC-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 "Fixed"?
···Set it "Fixed".
3) In the MENU-Option, is "Centre Channel input" set to "of
f"?
···Set it "of
f".
4) In the MENU-Set up, is "Speaker Setup" set to "SPEAKER-A"?
···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
Y6001?
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 (27)(28) 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 (J2201) and SO-
Connector (P2201)?
Display Side : Is the connection of SO-
Connector (P202) and SP-terminal (P203)
in the SP-UNIT
normal?
Are the connection in the SP-KUMI and
the Speaker normal?
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