DOWNLOAD Sharp LC-32RD2E (serv.man5) Service Manual ↓ Size: 931.23 KB | Pages: 20 in PDF or view online for FREE

Model
LC-32RD2E (serv.man5)
Pages
20
Size
931.23 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Troubleshooting Table
File
lc-32rd2e-sm5.pdf
Date
PREV: Sharp LC-32RD2E (serv.man4) Service Manual

Sharp LC-32RD2E (serv.man5) Service Manual ▷ View online

LC-32RD2E/RU, LC-37RD2E/RU
4 – 10
<When EXT1 is used for external input>                             No picture on the display (3) 
                                            
No EXT1-Composite output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT1”.
2) Is MENU-PICTURE-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.
                                            
Is composite video signal sent to pin (20) of SCART1 (J1101)?
NO
Check external connection, input setting, SCART1 and periph-
eral circuits.
YES
Is composite video signal (VIN_1) sent to input terminal pin (6) of 
IC2802 (SW)?
NO
Check CONNECTOR (P1101/SC2801), SCART1 (J1101) and 
peripheral circuits.
YES
Is composite video signal (CVBS1=VIN2) sent to input terminal 
pin (190) of IC3001 (VCT)? 
NO
Check IC2802 (SW) and peripheral circuits.
YES
Refer to “No video output in all modes”.
<When EXT1 is used for external input>                             No picture on the display (4) 
                                            
No EXT1-RGB output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT1”.
2) Is MENU-PICTURE-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.
                                            
Is RGB signal sent to pins (15)/R, (11)/G and (7)/B of SCART1 
(J1101)?
NO
Check external connection, input setting, SCART1 (J1101) and 
peripheral circuits.
YES
Is RGB signal (R1/G1/B1=VIN_6/5/9) sent to input terminal pins 
(187), (175) and (182) of IC3001 (VCT)?
NO
Check CONNECTOR (P1101/SC2801), SCART1 (J1101) and 
peripheral circuits.
YES
Refer to “No video output in all modes”.
LC-32RD2E/RU, LC-37RD2E/RU
4 – 11
<When EXT1 is used for external input>                             No picture on the display (5) 
                                            
No EXT1-Y/C output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT1”.
2) Is MENU-PICTURE-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.
                                            
Is Y/C signal sent to pins (20) and (15) of SCART1 (J1101)?
NO
Check external connection, input setting, SCART1 (J1101) and 
peripheral circuits.
YES
Is Y/C signal (VIN1=Y1/C1) sent to input terminal pins (190) and 
(187) of IC3001 (VCT)?
NO
Check CONNECTOR (P1101/SC2801), IC2802 (SW) and 
peripheral circuits.
YES
Refer to “No video output in all modes”.
<When EXT2 is used for external input>                             No picture on the display (6) 
                                            
No EXT2-Composite output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT2”.
2) Is MENU-PICTURE-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.
                                            
Is composite video signal sent to pin (41) of SCART2 (J1101)?
NO
Check external connection, input setting, SCART2 (J1101) and 
peripheral circuits.
YES
Is composite video signal (VIN-2) sent to input terminal pin (4) of 
IC2802 (SW)?
NO
Check CONNECTOR (P1102/SC2802), SCART2 (J1101) and 
peripheral circuits.
YES
Is composite video signal (CVBS2=VIN2) sent to input terminal 
pin (190) of IC3001 (VCT)? 
NO
Check IC2802 (SW) and peripheral circuits.
YES
Refer to “No video output in all modes”.
LC-32RD2E/RU, LC-37RD2E/RU
4 – 12
<When EXT2 is used for external input>                             No picture on the display (7) 
                                            
No EXT2-RGB output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT2”.
2) Is MENU-PICTURE-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.
                                            
Is RGB signal sent to pins (36)/R, (32)/G and (28)/B of SCART2 
(J1101)?
NO
Check external connection, input setting, SCART2 (J1101) and 
peripheral circuits.
YES
Is RGB signal (R2/G2/B2=VIN_15/16/17) sent to Input terminal 
pins (178), (177) and (176) of IC3001 (VCT)?
NO
Check CONNECTOR (P1102/SC2802), SCART2 (J1101) and
peripheral circuits.
YES
Refer to “No video output in all modes”.
<When EXT2 is used for external input>                             No picture on the display (8) 
                                            
No EXT2-Y/C output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT2”.
2) Is MENU-PICTURE-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.
                                            
Is Y/C signal sent to pins (41) and (36) of SCART2 (J1101)?
NO
Check external connection, input setting, SCART2 (J1101) and 
peripheral circuits.
YES
Is Y/C signal (VIN2=Y2/C2) sent to input terminal pins (190) and 
(178) of IC3001 (VCT)?
NO
Check CONNECTOR (P1102/SC2802), IC2802 (SW) and 
peripheral circuits.
YES
Refer to “No video output in all modes”.
LC-32RD2E/RU, LC-37RD2E/RU
4 – 13
<When EXT3 is used for external input>                             No picture on the display (9) 
                                            
No EXT3 output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT3”.
2) Is MENU-PICTURE-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.
                                            
Is composite video signal sent to pin (1) of A/V-IN-TERMINAL 
(J1201)?
NO
Check external connection, input setting, A/V-IN-TERMINAL 
(J1201) and peripheral circuits.
YES
Is composite video signal (IN3-CVBS) sent from pins (2) of 
IC1201 (SW)?
NO
Check IC1201 and peripheral circuits.
YES
Is composite video signal (IN3-CVBS) sent to input terminal pin 
(3) of IC2801 (SW)?
NO
Check CONNECTOR (P1102/SC2802), and peripheral circuits.
YES
Is composite video signal (IN3-CVBS=VIN7) sent to input termi-
nal pin (184) of IC3001 (VCT)?
NO
Check IC2801 (SW) and peripheral circuits.
YES
Refer to “No video output in all modes”.
<When EXT3 is used for external input>                             No picture on the display (10) 
                                            
No EXT3-Y/C output of the external input system.
                                            
 
Checklist: 
1) Is “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and set “INPUT SOURCE” to “EXIT3”.
2) Is MENU-PICTURE-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.
                                            
Is Y/C signal sent to pins (11) and (7) of S-TERMINAL (J1201)?
NO
Check external connection, input setting, S-TERMINAL (J1201) 
and peripheral circuits.
YES
Is Y3 signal (IN3-Y) sent from pin (2) of IC1201 (SW)?
NO
Check IC1201 and peripheral circuits.
YES
Is Y3 signal (IN3-Y) sent to input terminal pin (3) of IC2801 (SW)?
NO
Check CONNECTOR (P1102/SC2802), and peripheral circuits.
YES
Is Y/C signal (VIN7/VIN8) sent to input terminal pins (184) and 
(183) of IC3001 (VCT)?
NO
Check IC2801 (SW) and peripheral circuits.
YES
Refer to “No video output in all modes”.
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