DOWNLOAD Sharp LC-32LE600E (serv.man7) Service Manual ↓ Size: 1.32 MB | Pages: 29 in PDF or view online for FREE

Model
LC-32LE600E (serv.man7)
Pages
29
Size
1.32 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Troubleshooting Table
File
lc-32le600e-sm7.pdf
Date
PREV: Sharp LC-32LE600E (serv.man6) Service Manual

Sharp LC-32LE600E (serv.man7) Service Manual ▷ View online

LC-32/40/46LE600E/RU/S
5 – 21
<When EXT3/4/8 is used for external input>                     No picture on the display (4)-2
                                            
No PC output when the EXT4 external input is used. 
                                            
Checklist:
1) Is “INPUT SOURCE” button
on the remote control set up correctly? 
••• set it as “EXT3”/”EXT4”/”EXT8” with the INPUT SOURCE button on 
the remote control.
2) Is MENU-Picture-Backlight/Contrast/Brightness set to “MIN”? 
••• Set it to an appropriate level.
3) Check the connection to the external device 
••• Connect it correctly as per the operation manual for the device.
4) Attention: The terminal of IC3303 (VCT) cannot be actually checked by hiding oneself, and check it with another terminal of the same line, 
please.
                                            
Is the RGB signal sent to pins (1), (2) and (3) of EXT4 terminal 
(PC_IN) (SC501)? (PC_R/G/B)
NO
Check external connection, input setting, EXT4 terminal (PC_IN) 
(SC501) and peripheral circuits.
YES
 Is the RGB signal (PC_R/G/B) sent to input terminal pins (AE20) 
(AE19) and (AD19) of IC3303 (VCT)? 
NO
Check between pins (1) (2) (3) of EXT4 terminal (PC_IN) 
(SC501) and pins (AE20) (AE19) (AD19) of IC3303 (VCT).
YES
Is the LVDS video signal (LVDS0_D [0:4] 
±) input to pins (40)-
(28) of LW Connector (P2601), and is CLK signal (TCLK
±) input 
to pins (32)/(33)?
NO
Check whether there is short circuit between [A6:A11], [B6:B11] 
pin of IC3303 (VCT) and (40)-(28) pin of LW Connector (P2601), 
and peripheral circuits. 
YES
Is the I2C signal (VCOM_SDA/SCL) send to pin(12)/(13) of LP 
Connector (P2602)?
NO
Check the I2C signal of IC2602 and peripheral circuit. 
YES
Is the PNL12V output to pin (1)/(2) of PL Connector (CN7004(32 
inch)/CN7503(40/46 inch)) of POWER UNIT?
NO
Check PL connector of POWER UNIT and U7053(32inch)/
IC7502(40/46inch). 
YES
Exchange LCD-CONT-UNIT and do it operate normally?
NO
Check the contact of the LCD-CONT-UNIT connection harness 
(LW/LP/PL).
Exchange LCD-PANEL if it is useless even if it exchanges it.
LC-32/40/46LE600E/RU/S
5 – 22
<When EXT3/4/8 is used for external input>                     No picture on the display (4)-3
                                            
No Composite video output when the EXT8 external input is 
used.   
                                            
Checklist:
1) Is “INPUT SOURCE” button
on the remote control set up correctly? 
••• set it as “EXT3”/”EXT4”/”EXT8” with the INPUT SOURCE button on 
the remote control.
2) Is MENU-Picture-Backlight/Contrast/Brightness set to “MIN”? 
••• Set it to an appropriate level.
3) Check the connection to the external device 
••• Connect it correctly as per the operation manual for the device.
4) Attention: The terminal of IC3303 (VCT) cannot be actually checked by hiding oneself, and check it with another terminal of the same line, 
please.
                                            
Is the Composite video signal sent to pin (6) of EXT8 terminal 
(J505)? (CVBS_IN)
NO
Check external connection, input setting, EXT8 terminal (J505) 
and peripheral circuits.   
YES
Is the Composite video signal (CVBS_IN) sent to input terminal 
pin (AC24) of IC3303 (VCT)?
NO
Check between pin (6) of EXT8 terminal (J505) and pin (AC24) 
of IC3303 (VCT) and peripheral circuits.
YES
Is the LVDS video signal (LVDS0_D [0:4] 
±) input to pins (40)-
(28) of LW Connector (P2601), and is CLK signal (TCLK
±) input 
to pins (32)/(33)?
NO
Check whether there is short circuit between [A6:A11], [B6:B11] 
pin of IC3303 (VCT) and (40)-(28) pin of LW Connector (P2601), 
and peripheral circuits. 
YES
Is the I2C signal (VCOM_SDA/SCL) send to pin(12)/(13) of LP 
Connector (P2602)?
NO
Check the I2C signal of IC2602 and peripheral circuit. 
YES
Is the PNL12V output to pin (1)/(2) of PL Connector (CN7004(32 
inch)/CN7503(40/46 inch)) of POWER UNIT?
NO
Check PL connector of POWER UNIT and U7053(32inch)/
IC7502(40/46inch). 
YES
Exchange LCD-CONT-UNIT and do it operate normally?
NO
Check the contact of the LCD-CONT-UNIT connection harness 
(LW/LP/PL).
Exchange LCD-PANEL if it is useless even if it exchanges it.
LC-32/40/46LE600E/RU/S
5 – 23
<When EXT5/6/7(HDMI) is used for external input>       No picture on the display (5)-1
                                            
 No HDMI0 digital video output when the EXT5 external input is 
used.
                                            
Checklist:
1) Is “INPUT SOURCE” button
on the remote control set up correctly? 
••• set it as “EXT5”/”EXT6”/”EXT7” with the INPUT SOURCE button on 
the remote control. 
2) Is MENU-Picture-Backlight/Contrast/Brightness set to “MIN”? 
••• Set it to an appropriate level.
3) Check the connection to the external device 
••• Connect it correctly as per the operation manual for the device. 
4) Attention: The terminal of IC3303 (VCT) cannot be actually checked by hiding oneself, and check it with another terminal of the same line, 
please.
                                            
Is the HDMI Digital video signal sent to pin (1)-(9) of EXT5 termi-
nal (SC1501)? (HDMI0_D [0:2] _P/N)
NO
Check external connection, input setting, EXT5 terminal 
(SC1501) and peripheral circuits. 
YES
Is the HDMI Digital video signal sent to pin (21)-(26) of IC1508 
(HDMI-receiver)? (HDMI0_D [0:2] _P/N)
NO
Check short circuit of EXT5 terminal (SC1501), and peripheral 
circuits. 
YES
Is HDMI_SW_ Digital Video signal sent to pin (AF16) (AE16)-
(AF18) (AE18) of input terminal of IC3303 (VCT)?
(HDMI_SW_D [0:2] P/N)
NO
Check short circuit of IC1508 (HDMI_receiver), power source 
and peripheral circuits. 
YES
Is the LVDS video signal (LVDS0_D [0:4] 
±) input to pins (40)-
(28) of LW Connector (P2601), and is CLK signal (TCLK
±) input 
to pins (32)/(33)?
NO
Check whether there is short circuit between [A6:A11], [B6:B11] 
pin of IC3303 (VCT) and (40)-(28) pin of LW Connector (P2601), 
and peripheral circuits. 
YES
Is the I2C signal (VCOM_SDA/SCL) send to pin(12)/(13) of LP 
Connector (P2602)?
NO
Check the I2C signal of IC2602 and peripheral circuit. 
YES
Is the PNL12V output to pin (1)/(2) of PL Connector (CN7004(32 
inch)/CN7503(40/46 inch)) of POWER UNIT?
NO
Check PL connector of POWER UNIT and U7053(32inch)/
IC7502(40/46inch). 
YES
Exchange LCD-CONT-UNIT and do it operate normally?
NO
Check the contact of the LCD-CONT-UNIT connection harness 
(LW/LP/PL).
Exchange LCD-PANEL if it is useless even if it exchanges it.
LC-32/40/46LE600E/RU/S
5 – 24
<When EXT5/6/7(HDMI) is used for external input>       No picture on the display (5)-2
                                            
No HDMI1 digital video output when the EXT6 external input is 
used.   
                                            
Checklist:
1) Is “INPUT SOURCE” button
on the remote control set up correctly? 
••• set it as “EXT5”/”EXT6”/”EXT7” with the INPUT SOURCE button on 
the remote control. 
2) Is MENU-Picture-Backlight/Contrast/Brightness set to “MIN”? 
••• Set it to an appropriate level.
3) Check the connection to the external device 
••• Connect it correctly as per the operation manual for the device. 
4) Attention: The terminal of IC3303 (VCT) cannot be actually checked by hiding oneself, and check it with another terminal of the same line, 
please.
                                            
Is the HDMI Digital video signal sent to pin (1)-(9) of EXT6 termi-
nal (SC1502)? (HDMI1_D [0:2] _P/N)
NO
Check external connection, input setting, EXT6 terminal 
(SC1502) and peripheral circuits.
YES
Is the HDMI Digital video signal sent to pin (13)-(18) of IC1508 
(HDMI-receiver)? (HDMI1_D [0:2] _P/N)
NO
Check short circuit of EXT6 terminal (SC1502), and peripheral 
circuits.
YES
Is HDMI_SW_ Digital Video signal sent to pin (AF16) (AE16)-
(AF18) (AE18) of input terminal of IC3303 (VCT)?
(HDMI_SW_D [0:2] P/N)
NO
Check short circuit of IC1508 (HDMI_receiver), power source 
and peripheral circuits. 
YES
Is the LVDS video signal (LVDS0_D [0:4] 
±) input to pins (40)-
(28) of LW Connector (P2601), and is CLK signal (TCLK
±) input 
to pins (32)/(33)?
NO
Check whether there is short circuit between [A6:A11], [B6:B11] 
pin of IC3303 (VCT) and (40)-(28) pin of LW Connector (P2601), 
and peripheral circuits. 
YES
Is the I2C signal (VCOM_SDA/SCL) send to pin(12)/(13) of LP 
Connector (P2602)?
NO
Check the I2C signal of IC2602 and peripheral circuit. 
YES
Is the PNL12V output to pin (1)/(2) of PL Connector (CN7004(32 
inch)/CN7503(40/46 inch)) of POWER UNIT?
NO
Check PL connector of POWER UNIT and U7053(32inch)/
IC7502(40/46inch). 
YES
Exchange LCD-CONT-UNIT and do it operate normally?
NO
Check the contact of the LCD-CONT-UNIT connection harness 
(LW/LP/PL).
Exchange LCD-PANEL if it is useless even if it exchanges it.
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