DOWNLOAD Sharp LC-32D44E (serv.man5) Service Manual ↓ Size: 1.07 MB | Pages: 19 in PDF or view online for FREE

Model
LC-32D44E (serv.man5)
Pages
19
Size
1.07 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Trouble Shooting Table
File
lc-32d44e-sm5.pdf
Date
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LC-32D44E/S/RU-BK/GY
4 – 5
No sound from external input devices (2)
Does not the sound of the audio signal input to EXT3 go out?
MINI AV UNIT:
Is audio signal output from pin(5/IN3L), (4/IN3R) of input 
terminal J1002 to pin(8), (6) of connector SC1001?
NO
Check connection of between from J1002 to SC1001 and the exter-
nal input device.
MAIN UNIT:
 
YES
Is audio signal input to pin(8/IN3L), (6/IN3R) of connector 
P1001?
NO
Check the connector(SC1001/ P1001).
 YES
Is audio signal input to pin(1/IN3L), (6/IN3R) of IC1301 
(AUDIO_SELECTOR)?
NO
Check the line between P1001 and IC1301.
 YES
Is the audio signal sent to pin (15/AIN4L), (11/AIN4R) of 
IC1301?
NO
Check IC1301 and its peripheral circuits.
 YES
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
 YES
 NO
Refer to “No sound output in all modes”
Check the line between IC1301 and IC3001.
No sound from external input devices (3)
Does not the sound of the audio signal input to EXT4 go 
out?
Does not the sound of the audio signal input to EXT6(Analog) go 
out?
Whether "Analog" has selected it in the Audio setup of the HDMI 
option is checked. 
Is audio signal sent from pin(2/L) and (3/R)  of input termi-
nal J1301 to pin(5) and (8) of  IC1301 
(AUDIO_SELECTOR)?
YES
Is audio signal sent from pin(2/L) and (3/R) of  input terminal J1302 
to pin(3) and (7) of IC1301(AUDIO_SELECTOR)?
 NO
 NO
Check the connection between J1301 and the peripheral 
circuit, the external input devices.
Check the connection between J1302 and the peripheral circuit, the 
external input devices.
Is the audio signal sent to pin (15/AIN4L), (11/AIN4R) of 
IC1301?
NO
Check IC1301 and its peripheral circuits.
LC-32D44E/S/RU-BK/GY
4 – 6
 YES
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
 YES
 NO
Refer to “No sound output in all modes”
Check the line between IC1301 and IC3001.
No sound from external input devices (4)
Does not the sound of the audio signal input to EXT5 go out?
Is audio signal output from pin(2/COMP_AL), (4/
COMP_AR) of input terminal J1303 to pin(13), (9) of 
IC1301 (AUDIO_SELECTOR)?
NO
Check connection of between from J1303 to IC1301 and the external 
input device.
 YES
Is the audio signal sent to pin (15/AIN4L), (11/AIN4R) of  
IC1301?
NO
Check IC1301 and its peripheral circuits.
 YES
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
 YES
 NO
Refer to “No sound output in all modes”
Check the line between IC1301 and IC3001.
No sound from external input devices (5)
Does not the sound of the audio signal input to EXT6/7(HDMI) go out?
Is picture of the signal input from EXT6/7 displayed?
NO
Refer to “Does not the picture of the HDMI signal input to EXT6/7 go 
out?”.
 YES
Is the HDMI_SCK/ WS/ SD0 audio signal output from 
pin(86), (85), (84) of IC1951 (HDMI RECEIVER) to pin(39), 
(40), (38) of IC3001 (MAIN_MICON)?
NO
Check the line between IC1951 and IC3001, and their peripheral cir-
cuits.
 YES
Refer to “No sound output in all modes”.
LC-32D44E/S/RU-BK/GY
4 – 7
The audio signal is not output (1)
No audio signal output from SCART1 terminal.
Is audio signal sent to pins (3/L-ch) and (1/R-ch) of 
SCART1(SC1102)?
YES
Check the connection to SCART1 and external devices.
 NO
Is S-MUTE-LINE [pin(62) of IC2302(SUB_MICON)] at H?
YES
Check the peripheral circuits of IC2302 and S-MUTE_LINE.
(Q1101, etc.)
 NO
Is audio signal sent to pins (24/L-ch) and (23/R-ch) of 
IC3001(MAIN_MICON)?
YES
Check the line between SC1102 and IC3001.
(Q1106, Q1105,  etc.)
 NO
Check IC3001 and its peripheral circuits.
The audio signal is not output (2)
No audio signal output from SCART2 terminal.
Is audio signal sent to pins (3/L-ch) and (1/R-ch) of 
SCART2(SC1101)?
YES
Check the connection to SCART2 and external devices.
 NO
Is S2-MUTE-LINE [pin(63) of IC2302(SUB_MICON)] at H?
YES
Check the peripheral circuits of IC2302 and S2-MUTE_LINE.
(Q1102, etc.)
 NO
Is audio signal sent to pins (22/L-ch) and (21/R-ch) of 
IC3001(MAIN_MICON)?
YES
Check the line between SC1101 and IC3001.
(Q1108, Q1107,  etc.)
 NO
Check IC3001 and its peripheral circuits.
LC-32D44E/S/RU-BK/GY
4 – 8
The audio signal is not output (3)
 NO
No audio signal output from AUDIO_OUTPUT terminal.
Is audio signal output to pin(2/L-ch), (4/R-ch) of audio out-
put terminal J1304?
YES
Check the connection to J1304 and external devices.
 NO
Is S-MUTE-LINE [pin(62) of IC2302(SUB_MICON)] at H?
YES
Check the peripheral circuits of IC2302 and S-MUTE_LINE.
(Q1303, etc.)
 NO
Is audio signal sent to pins (22/L-ch) and (21/R-ch) of 
IC3001(MAIN_MICON)?
YES
Check the line between J1304 and IC3001.
(Q1302, Q1301, etc.)
 NO
Check IC3001 and its peripheral circuits.
The audio signal is not output (6)
No sound from HEDPHONE_OUTPUT terminal.
Is the HP_PLUG signal input into pin (208) of  
MAIN_UNIT's IC3001 (MAIN_MICON) from pin (6) of a 
headphone terminal (J1003)? 
NO
Check the line between J1003 and IC3001.
(SC1001/P1001, IC3001, etc.)
 YES
Is the audio signal output to pin(2/L-ch) pin(3/R-ch) of 
headphone terminal J1003?
YES
Check HEAD-PHONE (J1003) or peripheral circuits.
 NO
Is the audio signal input into pin (3) and (1) of connector 
SC1001 from pin(3/L-ch),(1/R-ch)  of connector P1001? 
YES
Check the line between P1001 and J1003.
(SC1001/P1001, etc.)
 NO
Is HP-MUTE-LINE [pin(40) of IC2302(SUB_MICON)] at 
H?
YES
Check the peripheral circuits of IC2302 and HP-MUTE_LINE.
(Q1001, etc.)
 NO
Is audio signal sent to pins (26/L-ch) and (25/R-ch) of 
IC3001(MAIN_MICON)?
YES
Check the line between P1001 and IC3001.
(IC1102, etc.)
 NO
Check IC3001 and its peripheral circuits.
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