DOWNLOAD Sharp LC-19SH7E Service Manual ↓ Size: 20.71 MB | Pages: 127 in PDF or view online for FREE

Model
LC-19SH7E
Pages
127
Size
20.71 MB
Type
PDF
Document
Service Manual / Specification
Brand
Device
TV / LCD
File
lc-19sh7e.pdf
Date
PREV: Sharp LC-19LE510K (serv.man10) Service Manual / Technical Bulletin

Sharp LC-19SH7E Service Manual / Specification ▷ View online

         2008-03-14 
LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU 
 49 
No sound (during the reception of TV (DIGITAL) broadcasting) 
↓ 
Does not the sound go out though the picture has come out when DTV is received?
 
MAIN UNIT:
  
 
    ↓ 
 
 
↓YES 
 
 
↓YES 
 
 
No sound from external input devices (1)
 
↓ 
Does not the sound of the audio signal input to SCART1 go out?
 
Does not the sound of the audio signal input to SCART2 go out?
 
TEREMINAL UNIT:
   
↓ 
 
 
 
 
 
↓YES 
 
 
 
 
 
↓YES 
 
 
No sound from external input devices (2) 
↓ 
Does not the sound of the audio signal input to AV1(Component) go out?
 
MAIN UNIT:
  
 
↓ 
 
 
↓YES 
 
 
 
↓YES 
 
 
Is the DIF signal output from pin (20) and pin (21) of TUNER 
(TU201)?
 
NO 
 
Check the tuner and its peripheral circuits. Replace as required.
Refer to “No sound output in all modes”.
 
Is the audio signal properly sent to pin (6) (SCT1_AUL_IN) and pin 
(2) (SCT1_AUR_IN) of SCART1(CN500)?
 
Is the audio signal properly sent to pin (6) (SCT2_AUL_IN) and pin 
(2) (SCT2_AUR_IN) of SCART2(CN501)?
 
Check the setting of an external input device that connects of 
CN500.
 
NO 
 
Check the setting of an external input device that connects of 
CN501.
 
NO 
 
Is the audio signal properly sent to pin (44) (SC1_LIN) and pin (43) 
(SC1_RIN) of IC U605?
 
Is the audio signal properly sent to pin (46) (SC2_LIN) and pin (45) 
(SC2_RIN) of IC U605?
 
NO 
 
NO 
 
Check the line between CN500 and IC U605.
Check the line between CN501 and IC U605.
Refer to “No sound output in all modes”.
 
Is the audio signal properly sent to pin (2) (AV1_AudioLIN) and pin 
(4)(AV1_AudioRIN) of CN556?
 
NO 
 
Check the connection to CN556 and the external input device.
Refer to “No sound output in all modes”.
 
Is the audio signal properly sent to pin (50) (AV1_LIN) and pin (49) 
(AV1_RIN) of IC U605?
 
NO 
 
Check the line between CN556 and IC U605.
Is the DIF signal sent to pin (R25) and pin (T25) of IC U400?
 
NO 
 
Check IC U400 its peripheral circuits.
 
LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU 
50  
No sound from external input devices (3)
 
↓ 
Does not the sound of the audio signal input to AV3(Composite/Y/C) go out?
 
MAIN UNIT:
  
 
↓ 
 
 
↓YES 
 
 
 
↓YES 
 
 
 
No sound from external input devices (4) 
↓ 
Does not the sound of the audio signal input to VGA go out?
 
MAIN UNIT:
  
 
↓ 
 
 
↓YES 
 
 
 
↓YES 
 
 
 
No sound from external input devices (5) 
↓ 
Does not the sound of the audio signal input to HDMI1/2/3 go out?
 
↓ 
 
 
↓YES 
 
 
 
 
 
 
 
 
 
 
 
Is the audio signal properly sent to pin (4) (AV3_AudioLIN) and pin 
(6) (AV3_AudioRIN) of CN654?
 
NO 
 
Check the connection to CN654 and the external input device.
Refer to “No sound output in all modes”.
 
Is the audio signal properly sent to pin (52) (SIDE_LIN) and pin (51) 
(SIDE_RIN) of IC U605?
 
NO 
 
Check the line between CN654 and IC U605.
Is the audio signal properly sent to pin (2) (VGA_AudioLIN) and pin 
(3) (VGA_AudioRIN) of CN555?
 
NO 
 
Check the connection to CN555 and the external input device.
Refer to “No sound output in all modes”.
 
Is the audio signal properly sent to pin (48) (VGA_LIN) and pin (47) 
(VGA_RIN) of IC U605?
 
NO 
 
Check the line between CN555 and IC U605.
Refer to “No sound output in all modes”.
 
Is picture of the signal input from HDMI1/2/3 displayed?
 
NO 
 
Refer to “Does not the picture of the HDMI signal input to 
HDMI1/2/3 go out?”.
 
         2008-03-14 
LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU 
 51 
The audio signal is not output (1) 
↓ 
The audio signal of UHF/VHF is not output from SCART1.
 
TEREMINAL UNIT:
   
    ↓ 
 
 
↓NO 
 
 
↓NO 
 
 
 
The audio signal is not output (2) 
↓ 
The audio signal of UHF/VHF/MONITOR is not output from SCART2.
 
TEREMINAL UNIT:
   
    ↓ 
 
 
↓NO 
 
 
↓NO 
 
 
 
The audio signal is not output (3) 
↓ 
No audio signal output from LINE_AUDIO_OUTPUT terminal.
 
TEREMINAL UNIT:
   
    ↓ 
 
 
↓NO 
 
 
↓NO 
 
 
 
 
 
 
Is audio signal output from IC U400 sent to pin (2)(LRCLK) and pin 
(3)(DIN) and pin (4)(BCLK) and pin(13)(MCLK) of IC U602? 
Is audio signal output from IC U602 sent to pin (3)(SCT1_AUL-
OUT) and pin(1)(SCT1_AUR-OUT) of SCART1(CN500)?
 
YES 
 
Check the connection to SCART1 and external devices.
YES 
 
Check the line between IC U400 and IC U602.
Check IC U400 and its peripheral circuits.
Is the audio signal output from IC U400 pin(K26) (AL2) and pin(J24) 
(AR2) sent to pin(26)(INPUT1L) and pin(25)(INPUT1R) of IC U605?
Is audio signal output from IC U605 sent to 
pin(3)(SCT2_AUL_OUT) and pin(1)(SCT2_AUR_OUT) of 
YES 
 
Check the connection to SCART2 and external devices.
YES 
 
Check the line between IC U400 and IC U605.
Check IC U400 and its peripheral circuits.
Is the audio signal output from IC U400 pin(K26) (AL2) and pin(J24) 
(AR2) sent to pin(26)(INPUT1L) and pin(25)(INPUT1R) of IC U605?
Is audio signal output from IC U605 sent to pin(2)(L_OUT) and pin 
(4)(R_OUT) of LINE_AUDIO_OUT connector(CN652)?
 
YES 
 
Check the connection to LINE_AUDIO_OUT and external 
devices.
 
YES 
 
Check the line between IC U400 and IC U605.
Check IC U400 and its peripheral circuits.
LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU 
52  
The audio signal is not output (4) 
↓ 
No audio signal output from SPDIF_OUTPUT terminal.
 
TEREMINAL UNIT:
   
    ↓ 
 
 
↓NO 
 
 
 
The audio signal is not output (5) 
↓ 
No sound from HEADPHONE_OUTPUT terminal.
 
MINI AV_UNIT:
  
 
    ↓ 
 
 
↓YES 
 
 
↓YES 
 
 
↓YES 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Check IC U400 and its peripheral circuits.
Is ASPDIF audio signal output from pin (E26) of IC U400 to pin (6) 
of connector CN556?
 
YES 
 
Check the connection to SPDIF_OUT and external devices.
Is the audio signal output from IC U605 to pin(2) (HPOUTL) and pin 
(3) (HPOUTR) of headphone terminal CN602?
 
Is the HPDET signal input into pin (AA5) of IC U400 from pin (6) of 
a headphone terminal (CN602)? 
NO 
 
Check the connection to CN602 and external headphone is plug 
in well.
 
NO 
 
Check the line between IC U605 and CN602.
Check IC U400 and its peripheral circuits.
Is the audio signal output from IC U400 pin(J26)(AL1) and pin(J25) 
(AR1) sent to pin(24)(INPUT0L) and pin(23)(INPUT0R) of IC U605?
NO 
 
Check the line between IC U400 and IC U605.
Page of 127
Display

Click on the first or last page to see other LC-19SH7E service manuals if exist.

RANDOM: