DOWNLOAD Sharp LC-32SA1E (serv.man2) Service Manual ↓ Size: 39.39 MB | Pages: 127 in PDF or view online for FREE

Model
LC-32SA1E (serv.man2)
Pages
127
Size
39.39 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-32sa1e-sm2.pdf
Date

Sharp LC-32SA1E (serv.man2) Service Manual ▷ View online

LC-26SA1E/RU, LC-32SA1E/RU
6 – 10
<During external connection>                                           No picture on the monitor (2)
                                            
SCART2:
No picture from EXT1 appears on EXT2-connected monitor.
NOTE: Normally, if the screen during display is sent to EXT2, no 
picture is sent to EXT2.
                                            
Checklist: 
1) Are input terminal on back of TV and “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and 
set “INPUT SOURCE” appropriately.
2) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? 
••• Set it to “CVBS”, “Y/C” or “RGB”.
3) Is ANT-CABLE disconnected or connected improperly? 
••• Connect it correctly as per the operation manual.
4) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
When sent by component, etc., that signal is not sent to the monitor.
5) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.
6) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
                                             
Is video signal sent to pin (40) of SCART2 (J1101)?
YES
Check SCART2, external connection or input setting. 
NO
Is video signal (V-OUT2) sent from pin (2) of IC1101 (SW)?
YES
Check SCART2 (J1101) and peripheral circuits.   
NO
Is video signal (V-OUT2) sent from pin (194) of IC3002 (VCT)? 
YES
Check IC1101 (SW), Connector (P1102, SC2703) and peripheral 
circuits.
NO
Is video signal (VIN1) from EXT1 sent to pin (190) of IC3002 
(VCT)?
YES
Check power supply of IC3002 (VCT) and peripheral circuits.
NO
Check whether video signal is sent to pin (20) of SCART1. 
YES
Check SCART1, IC2702 (SW), CONNECTOR (SC2702, P1101) 
and peripheral circuits.
NO
Check SCART1, external connection or input setting.
     LC-26SA1E/RU, LC-32SA1E/RU
6 – 11
<During external connection>                                           No picture on the monitor (2) 
                                            
SCART2:
No picture from EXT3 appears on EXT2- connected monitor.
                                            
Checklist: 
1) Are input terminal on back of TV and “INPUT SOURCE” button 
on the remote control set up correctly? 
••• See the operation manual and 
set “INPUT SOURCE” appropriately.
2) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? 
••• Set it to “CVBS”, “Y/C” or “RGB”.
3) Is ANT-CABLE disconnected or connected improperly? 
••• Connect it correctly as per the operation manual.
4) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
When sent by component, etc., that signal is not sent to the monitor.
5) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.
6) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
                                             
Is video signal sent to pin (40) of SCART2 (J1101)?
YES
Check SCART2, external connection or input setting. 
NO
Is video signal (V-OUT2) sent from pin (2) of IC1101 (SW)?
YES
Check SCART2 (J1101) and peripheral circuits.
NO
Is video signal (V-OUT2) sent from pin (194) of IC3002 
(VCT)? 
YES
Check IC1101 (SW), Connector (P1102, SC2703) and peripheral 
circuits.
NO
Is video signal (VIN7) from EXT3 sent to pin (184) of IC3002 
(VCT)? 
YES
Check power supply of IC3002 (VCT) and peripheral circuits.
NO
Is video signal (IN3YV) sent to pin (2) of IC1201 (SW)? 
YES
Check pin (184) of IC3002 (VCT), CONNECTOR (SC2703, 
P1102) and peripheral circuits.
NO
Is video signal (CVBS) sent from pin (1) of A/V-TERMINAL 
(J1201=EXT3)?
YES
Check pin (1) (IN3SW) of IC1201 (SW), power supply and 
peripheral circuits.
NO
Check A/V-TERMINAL (J1201), external connection or input 
setting.
LC-26SA1E/RU, LC-32SA1E/RU
6 – 12
<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 “EXIT”.
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 
peripheral circuits. 
YES
Is composite video signal (VIN_1) sent to input terminal pin (6) of 
IC2702 (SW)? 
NO
Check CONNECTOR (SC2702/P1101), SCART1 (J1101) and 
peripheral circuits.
YES
Is composite video signal (CVBS1=VIN2) sent to input terminal 
pin (190) of IC3002 (VCT)? 
NO
Check IC2702 (SW) and peripheral circuits.
YES
Is LVDS signal (LVDS_0N/0P-3N/3P) sent from pins (141) and 
(140) - (129) and (128) of IC3002 (VCTP), and is CLK signal 
(LVDS_CN/CP) sent from pins (132) and (131)? 
NO
Check pins (192), (170) and (133) of BU3.3V power line and pins 
(185), (169) and (142) of BU1.8V power line of IC3002 (VCTP), 
and peripheral circuits.
YES
Is LVDS signal (LVDS_0N/0P-3N/3P) sent to pins (12) and (13) - 
(24) and (25) of CONNECTOR CN1 in LCD-CONT-UNIT, and is 
CLK signal (LVDS_CN/CP) sent to pins (21) and (22)? 
NO
Check CONNECTOR (P2305, CN1) and HARNESS WIRE (LV).
YES
Is power (LCD5V) supplied to pins (2) - (5) of CONNECTOR CN1 
in LCD-CONT-UNIT?
NO
Is LCD5V supplied to pins (31) - (28) of CONNECTOR (P2305)?
Check HARNESS WIRE (LV).
YES
Replace LCD-CONT-UNIT.
     LC-26SA1E/RU, LC-32SA1E/RU
6 – 13
<When EXT1 is used for external input>                            No picture on the display (3) 
                                            
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 “EXIT”.
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),(11) and (7) 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 IC3002 (VCT)? 
NO
Check CONNECTOR (SC2702/P1101), SCART1 (J1101) and 
peripheral circuits.
YES
Is LVDS signal (LVDS_0N/0P-3N/3P) sent from pins (141) and 
(140) - (129) and (128) of IC3002 (VCTP), and is CLK signal 
(LVDS_CN/CP) sent from pins (132) and (131)? 
NO
Check pins (192), (170) and (133) of BU3.3V power line and pins 
(185), (169) and (142) of BU1.8V power line of IC3002 (VCTP), 
and peripheral circuits.
YES
Is LVDS signal (LVDS_0N/0P-3N/3P) sent to pins (12) and (13) - 
(24) and (25) of CONNECTOR CN1 in LCD-CONT-UNIT, and is 
CLK signal (LVDS_CN/CP) sent to pins (21) and (22)? 
NO
Check CONNECTOR (P2305, CN1) and HARNESS WIRE (LV).
YES
Is power (LCD5V) supplied to pins (2) - (5) of CONNECTOR CN1 
in LCD-CONT-UNIT?
NO
Is LCD5V supplied to pins (31) - (28) of CONNECTOR (P2305)?
Check HARNESS WIRE (LV).
YES
Replace LCD-CONT-UNIT.
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