Sharp Lc 32le340m Maintenance Manual

LC-32LE240M/340M(1stEdition)
5 – 6
No audio heard (3)
                                            
No HDMI sound heard. 
(*INPUT 1 is digital audio.)
                                            
Does the HDMI image appear onscreen? NO Refer to “ in No external input video onscreen 
(HDMI)”.
YES
No audio output from  NO Check it if EDID is written or not.
YES
Are waveforms input in to the pin(3)-(6), (8), (9), (11), (12)
 of IC3301 normally?NO Check peripheral circuits IC3301.
YES
Is there audio signal...

LC-32LE240M/340M(1stEdition)
5 – 7
No audio heard (4)
                                            
No sound from the HDMI sound input terminal.
(INPUT 1 analog audio)
YES
Is there the L-ch audio signal input from pin (2) of external input 
terminal J506 (HDMI AUDIO IN) to pin (55) of IC3301?
Is there the R-ch audio signal input from pin (3) of external input 
terminal J506 (HDMI AUDIO IN) to pin (56) of IC3301?
YES
Are I2S signal output from the pins (80), (81) of IC3301 normally? NO Check peripheral...

LC-32LE240M/340M(1stEdition)
5 – 8
No audio heard (5)
                                            
No PC audio output
YES
Pin (2) of J506: Is L-ch input into the pin (55) of IC3301?
Pin (3) of J506: Is R-ch input into the pin (56) of IC3301?
YES
Are I2S signal output from the pins (80), (81) of IC3301 normally? NO Check peripheral circuits of IC3301.
YES
Is there audio signal input at pin(6) of IC1701? NO Check connection between IC3301 and IC1701 and its 
peripheral circuits.
YES
Is the L-ch audio...

LC-32LE240M/340M(1stEdition)
5 – 9 

LC-32LE240M/340M(1stEdition)
6 – 1
LC32LE240M
4FSWJDF
.BOVBM

CHAPTER 6. 
OVERALL WIRING/BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAMA C
B DEF GI
H
12345678910111213141516171819
20
21 22
QCNW-M466WJQZ
QCNW-M465WJQZ
SP-R
[L1][PD]
[AC]1-41 10
NL
Power Unit
RUNTKA929WJQZ
SP-L
1
32
12
QCNW-M467WJQZ
QCNW-M468WJQZ
Hiraki-Panel
R1LK315T3HB00W
MAIN
32LE340M --> DUNTKF998FMG4
32LE240M --> DUNTKF998FMG5
LED PWB A
RUNTKA927WJZZ
LED PWB B
RUNTKA928WJZZ
SP-R
RSP-ZA571WJZZSP-L
RSP-ZA570WJZZ
Tuner
PC audio inUSB
HP...

LC-32LE240M/340M(1stEdition)
6 – 2
[2] SYSTEM BLOCK DIAGRAMA C
B DEF GI
H
12345678910111213141516171819
20
21 22
MST6100VS RH-IXD454WJQZQ (340M)
MST6003VS RH-IXD459WJQZQ (240M)
MSTAR
SAR(2)
Monitor Audio
SAR(0)
SAR(1)
GPIO10
CVBS
COMPAUDIO
LED UNITL1
LED1_A
LED1_K
2pin
L1
LED1_A
LED1_K
LED2_A
LED2_K
4pin
UR+12.2V
GND
PS_ON
ERROR
OFL
STB
UR+12.2V
GND
PS_ON
ERROR
OFL
STB
USB IF
PD
PD
HDMI1
HDMI
IR IN
GPIO6
GPIO37
KEY/RC/LEDKEY/SW
IR Receiver
LED
TEMPSENSORTH3301
SIF IN
VIF INTUNER
TUNER
TU1101...

LC-32LE240M/340M(1stEdition)
7 – 1
LC32LE240M
4FSWJDF
.BOVBM

CHAPTER 7. 
PRINTED WIRING BOARD ASSEMBLIES
[1] MAIN UnitA C
B DEF GI
H
12345678910111213141516171819
20
21 22
MAIN Unit
(Side-A) 

LC-32LE240M/340M(1stEdition)
7 – 2
A C
B DEF GI
H
12345678910111213141516171819
20
21 22
MAIN Unit
(Side-A Chip) 

LC-32LE240M/340M(1stEdition)
7 – 3
A C
B DEF GI
H
12345678910111213141516171819
20
21 22
MAIN Unit
(Side-B) 

LC-32LE240M/340M(1stEdition)
7 – 4
A C
B DEF GI
H
12345678910111213141516171819
20
21 22
MAIN Unit
(Side-B Chip)