DOWNLOAD Sharp LC-32SH330E Service Manual ↓ Size: 20.81 MB | Pages: 127 in PDF or view online for FREE

Model
LC-32SH330E
Pages
127
Size
20.81 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-32sh330e.pdf
Date
PREV: Sharp LC-32SH130K (serv.man23) Service Manual / Technical Bulletin

Sharp LC-32SH330E Service Manual ▷ View online

         2008-03-14 
LC-26SH330, LC-32SH330, LC-42SH330 
 65 
<External input SCART1>No picture on the display (5) 
↓ 
Does not the picture of the R/G/B video signal input to SCART1 go out?
 
TERMINAL UNIT:
    
     ↓ 
 
 
MAIN_UNIT: 
 
      
↓YES 
 
 
 
 
 
 
      
↓YES 
 
 
 
<External input SCART1, SCART2>No picture on the display (6) 
↓ 
Does not the picture of the Y/C signal input to SCART1 go out?
 
Does not the picture of the Y/C signal input to SCART2 go out?
 
TERMINAL UNIT:
    
    ↓ 
 
 
 
 
MAIN_UNIT: 
 
      
↓YES 
 
 
 
 
 
 
 
      
↓YES 
 
 
 
<External input AV3>No picture on the display (7) 
↓ 
Does not the picture of the composite video signal input to AV3(Composite) go out?
 
TERMINAL UNIT:
    
    ↓ 
 
 
MAIN_UNIT: 
 
     
↓YES 
 
 
 
 
 
     
↓YES 
 
 
 
 
 
 
 
 
 
 
 
Is RGB signal sent to pin (15)/R, (11)/G, (7)/B, of SCART1 
(CN151)?
 
NO 
 
Check the setting of an external input device that connects of 
CN151.
 
Refer to “The picture doesn't appear in all modes.”
 
Is RGB signal sent to pin (AU30)/R, (AP29)/G, (AR28)/B of IC 
U401?
 
NO 
 
Check the line between IC U401 and CN151.
Is Y/C signal sent to pin (20) and (15) of SCART1 (CN151)?
NO 
 
Refer to “The picture doesn't appear in all modes.”
 
NO 
 
Is Y/C signal sent to pin (20) and (15) of SCART2 (CN152)?
Is Y/C signal sent to pin (AP33)/Y, (AU30)/C of IC U401?
 
Is Y/C signal sent to pin (AT33)/Y, (AR34)/C of IC U401?
 
NO 
 
NO 
 
Check the line between IC U401 and CN151.
Check the line between IC U401 and CN152.
Check the setting of an external input device that connects of 
CN151.
 
Check the setting of an external input device that connects of 
CN152.
 
Is CVBS signal sent to pin (2) of AV3 (CN136)?
 
NO 
 
Check the setting of an external input device that connects of 
CN136.
 
Refer to “The picture doesn't appear in all modes.”
 
Is CVBS signal sent to pin (AU36) of IC U401?
 
NO 
 
Check the line between IC U401 and CN136.
LC-26SH330, LC-32SH330, LC-42SH330 
66  
<External input HDMI1,2,3>No picture on the display (8) 
↓ 
Does not the picture of the HDMI signal input to HDMI1 go out?
 
MINI AV_UNIT:
  
 
 
↓ 
 
 
↓ 
 
YES
 
 
 
 
 
 
    
 
↓NO 
YES
 
  
 
 
                                                            
YES
 
 
 
 
 
 
       
↓YES 
 
 
 
Does not the picture of the HDMI signal input to HDMI2 go out?
 
MINI AV_UNIT:
  
 
     ↓ 
 
 
↓ 
 
YES
 
 
 
 
 
 
    
 
↓NO 
YES
 
  
 
 
                                                           
YES
 
 
 
 
 
 
       
↓
 YES 
 
 
 
 
 
 
 
 
Is the HOT_PLUG detection function of pin (19) of a HDMI 
terminal (CN502) normal?
 
NO 
 
Check the line between pin (50) of IC U501 and CN502.
Refer to “The picture doesn't appear in all modes.”
 
Check the connection and setup with the external HDMI 
Are EDID data pin (6)(SCL) of IC U503 (EEPROM), pin (5)(SDA)  
accessed, and is it read from pin (15), pin (16) of a HDMI 
terminal(CN502)?
 
NO 
 
Is access possible in the re-writing or exchange of EDID data 
of IC U503?
 
Check CN502, IC U503 and peripheral circuits.
Is TMDS signal input into pin(63, 62)/RX2-2±,(60, 59)/RX2-1±, 
(57, 56)/RX2-0±, (54, 53)/RX2-C± of IC U501?
 
Check the line between IC U501 and CN502.
 
NO 
 
Is TMDS signal output from pin(17, 18)/ 2±,(20, 21)/ 1±, (23, 24)/ 
0±, (26, 27)/ C± of IC U501?
 
Check IC U501 and peripheral circuits.
 
NO 
 
Is the HOT_PLUG detection function of pin (19) of a HDMI 
terminal (CN501) normal?
 
NO 
 
Check the line between pin (64) of IC U501 and CN501.
Refer to “The picture doesn't appear in all modes.”
 
Check the connection and setup with the external HDMI 
Are EDID data pin (6)(SCL) of IC U502 (EEPROM), pin (5)(SDA)  
accessed, and is it read from pin (15), pin (16) of a HDMI 
terminal(CN502)?
 
NO 
 
Is access possible in the re-writing or exchange of EDID data 
of IC U502?
 
Check CN502, IC U503 and peripheral circuits.
Is TMDS signal input into pin(14, 13)/RX1-2±,(11, 10)/RX1-1±, (8, 
7)/RX1-0±, (5, 4)/RX1-C± of IC U501?
 
Check the line between IC U501 and CN501.
 
NO 
 
Is TMDS signal output from pin(17, 18)/ 2±,(20, 21)/ 1±, (23, 24)/ 
0±, (26, 27)/ C± of IC U501?
 
Check IC U501 and peripheral circuits.
 
NO 
 
         2008-03-14 
LC-26SH330, LC-32SH330, LC-42SH330 
 67 
Does not the picture of the HDMI signal input to HDMI3 go out?
 
MINI AV_UNIT:
  
 
 
↓ 
 
 
↓ 
 
YES
 
 
 
 
 
 
    
 
↓NO 
YES
 
  
 
 
                                                           
YES
 
 
 
 
 
 
      
↓
YES 
 
 
 
 
 
<External input VGA>No picture on the display (9) 
↓
 
Does not the picture of the PC IN(ANALOG) video signal input to VGA(15pin-D-SUB terminal) go out?
 
TERMINAL_UNIT:
   
    ↓ 
 
 
MAIN_UNIT: 
 
      
↓YES 
 
 
 
 
 
      
↓YES 
 
 
 
 
 
 
 
 
 
 
 
 
 
NO 
 
Is R/G/B/H/V signal sent to pin (1)/R, (2)/G, (3)/B, (14)/H, (13)/V of 
VGA (CN101)?
 
NO 
 
Check the setting of an external input device that connects of 
CN101.
 
Refer to “The picture doesn't appear in all modes.”
 
Is R/G/B/H/V signal sent to pin (AT25)/R, (AU24)/G, (AT23)/B, 
(AR22)/H, (AU22)/V of IC U401?
 
NO 
 
Check the line between IC U401 and CN101.
 
Is the HOT_PLUG detection function of pin (19) of a HDMI 
terminal (CN506) normal?
 
Check the line between pin (35) of IC U501 and CN506.
Refer to “The picture doesn't appear in all modes.”
 
Check the connection and setup with the external HDMI 
Are EDID data pin (6)(SCL) of IC U504 (EEPROM), pin (5)(SDA)  
accessed, and is it read from pin (15), pin (16) of a HDMI terminal 
(CN506)?
 
NO 
 
Is access possible in the re-writing or exchange of EDID data 
of IC U504?
 
Check CN506, IC U504 and peripheral circuits.
Is TMDS signal input into pin(48, 47)/RX3-2±,(45, 44)/RX3-1±, 
(42, 41)/RX3-0±, (39, 38)/RX3-C± of IC U501?
 
Check the line between IC U501 and CN506.
 
NO 
 
Is TMDS signal output from pin(17, 18)/ 2±,(20, 21)/ 1±, (23, 24)/ 0
±
, (26, 27)/ C± of IC U501?
 
Check IC U501 and peripheral circuits.
 
NO 
 
LC-26SH330, LC-32SH330, LC-42SH330 
68  
<External input AV1(Component)>No picture on the display (10) 
↓
  
Does not the picture of the component video signal input to Component go out?
 
TERMINAL_UNIT:
    
    ↓ 
 
 
MAIN_UNIT: 
 
      
↓YES 
 
 
 
 
 
      
↓YES 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Is Component Y/Pb/Pr signal sent to pin (2)/Y, (4)/Pb, (6)/Pr of 
AV1(CN111) ?
 
NO 
 
Check the setting of an external input device that connects of 
CN111.
 
Refer to “The picture doesn't appear in all modes.”
 
Is Component Y/Pb/Pr signal sent to pin (AU26)/Y, (AT27)/Pb, 
(AP27)/Pr of IC U401?
 
NO 
 
Check the line between IC U401 and CN111.
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