Service Manual
Page 9
...TV. 1 TV POWER: Switch the TV power on or enters standby. 2 DISPLAY: Display the channel information. 3 SOURCE POWER: Turns the power of the external equipment on the screen. 23 RETURN: Return to the previous menu screen. 24 FAVORITE CH A, B, C, D: Select 4 preset favorite channels in 4 different categories. LC-52D43U... the 0-9 buttons. 18 FLASHBACK: Return to normal screen. 11 EXIT: Turn off . 4 External equipment operational buttons: Operate the external equipment. 5 0 - 9: Set the channel. 6 • (DOT): 7 INPUT: Select a TV input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4, INPUT...
...TV. 1 TV POWER: Switch the TV power on or enters standby. 2 DISPLAY: Display the channel information. 3 SOURCE POWER: Turns the power of the external equipment on the screen. 23 RETURN: Return to the previous menu screen. 24 FAVORITE CH A, B, C, D: Select 4 preset favorite channels in 4 different categories. LC-52D43U... the 0-9 buttons. 18 FLASHBACK: Return to normal screen. 11 EXIT: Turn off . 4 External equipment operational buttons: Operate the external equipment. 5 0 - 9: Set the channel. 6 • (DOT): 7 INPUT: Select a TV input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4, INPUT...
Service Manual
Page 11
...60°C) 1 - 5 Storage temperature: 4°F to 140°F (20°C to change in "Output Select"? • Have you pressed TV POWER on a screen • Failed to other components correct? • Is correct input signal source selected after 1 or 2 minutes. • Is the FUNCTION set ?...may cause the cabinet to deform and the Liquid Crystal panel to the TV setting position. • Are batteries inserted with polarity ( , ) aligned? • Are batteries worn out? (Replace with new batteries.) LC-52D43U • Picture is suddenly turned off. • Is the sleep timer...
...60°C) 1 - 5 Storage temperature: 4°F to 140°F (20°C to change in "Output Select"? • Have you pressed TV POWER on a screen • Failed to other components correct? • Is correct input signal source selected after 1 or 2 minutes. • Is the FUNCTION set ?...may cause the cabinet to deform and the Liquid Crystal panel to the TV setting position. • Are batteries inserted with polarity ( , ) aligned? • Are batteries worn out? (Replace with new batteries.) LC-52D43U • Picture is suddenly turned off. • Is the sleep timer...
Service Manual
Page 28
...? YES Is video signal sent to pin 2 of TERMINAL_UNIT connector (FC_SC501)? LC-52D43U No video output (1) No video output from external input Is INPUT-1 selected on the input switching menu screen. Select INPUT-1 and the input signal on the input switching menu screen? Check between IC501 and IC3301. (Q2202, Q2210, etc.) NO Check IC2602... -board cable "FC". NO Check between J501 and pin 65 of IC501? NO When INPUT-1 cannot be selected since the characters INPUT-1 on the menu screen are gray.
...? YES Is video signal sent to pin 2 of TERMINAL_UNIT connector (FC_SC501)? LC-52D43U No video output (1) No video output from external input Is INPUT-1 selected on the input switching menu screen. Select INPUT-1 and the input signal on the input switching menu screen? Check between IC501 and IC3301. (Q2202, Q2210, etc.) NO Check IC2602... -board cable "FC". NO Check between J501 and pin 65 of IC501? NO When INPUT-1 cannot be selected since the characters INPUT-1 on the menu screen are gray.
Service Manual
Page 29
... signal fed to -board cable "FC". Are digital video (COMOS) signal sent from external input Is INPUT-2 selected on the input switching menu screen? Check between IC501 and SC501. (Q501, Q502, etc.) NO Check the board-to pin K25 of Q2202 and Q2210? NO Check between J502..., DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)? YES Are digital video (LVDS) signals sent from pins 37-42 and 45-48 of IC501. LC-52D43U Select INPUT-2 and the input signal on the menu screen are gray. NO Check IC8101 and peripheral circuits. 4 - 4 NO When INPUT-2 cannot be selected since the characters INPUT-2 on ...
... signal fed to -board cable "FC". Are digital video (COMOS) signal sent from external input Is INPUT-2 selected on the input switching menu screen? Check between IC501 and SC501. (Q501, Q502, etc.) NO Check the board-to pin K25 of Q2202 and Q2210? NO Check between J502..., DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)? YES Are digital video (LVDS) signals sent from pins 37-42 and 45-48 of IC501. LC-52D43U Select INPUT-2 and the input signal on the menu screen are gray. NO Check IC8101 and peripheral circuits. 4 - 4 NO When INPUT-2 cannot be selected since the characters INPUT-2 on ...
Service Manual
Page 30
...switching menu screen? NO When INPUT-3 cannot be selected since the characters INPUT-3 on the menu YES Is signal fed to pin K25 of IC501 (AV SWITCH)? Is video signal fed to pin 2 of IC501. composed of IC501? Check between J503 and pins 5 and 7 of IC501 respectively? LC-52D43U No ...video output (3) No video output from external input Is INPUT-3 selected on the input switching menu screen. YES Is video signal sent to pin 3 of Q2202 and Q2210? YES Is video signal fed ...
...switching menu screen? NO When INPUT-3 cannot be selected since the characters INPUT-3 on the menu YES Is signal fed to pin K25 of IC501 (AV SWITCH)? Is video signal fed to pin 2 of IC501. composed of IC501? Check between J503 and pins 5 and 7 of IC501 respectively? LC-52D43U No ...video output (3) No video output from external input Is INPUT-3 selected on the input switching menu screen. YES Is video signal sent to pin 3 of Q2202 and Q2210? YES Is video signal fed ...
Service Manual
Page 31
...input pin of IC501. Are digital video (COMOS) signal sent from external input Is INPUT-1 selected on the input switching menu screen? No video output (4) LC-52D43U No video output from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)? When INPUT-1 cannot be selected since the... characters INPUT-1 on the input switching menu screen. YES Check LCD_CONTROL PWB. NO Check between IC501 and SC501. (Q501-Q506, etc.) NO ...
...input pin of IC501. Are digital video (COMOS) signal sent from external input Is INPUT-1 selected on the input switching menu screen? No video output (4) LC-52D43U No video output from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)? When INPUT-1 cannot be selected since the... characters INPUT-1 on the input switching menu screen. YES Check LCD_CONTROL PWB. NO Check between IC501 and SC501. (Q501-Q506, etc.) NO ...
Service Manual
Page 32
... connector (FC_SC1101)? NO Check between 8 pin of J502 and pin 40 of IC2602? NO Select INPUT-2 and the input signal on the menu screen are gray. YES Are component video signals fed to pins 2, 4 and 6 of IC501. YES Are component video signals sent to pins 2, ...When INPUT-2 cannot be selected since the characters INPUT-2 on the input switching menu screen. LC-52D43U No video output (5) No video output from external input Is INPUT-2 selected on the input switching menu screen? YES Check LCD_CONTROL PWB. NO Check IC501 and peripheral circuits. NO Check IC8101...
... connector (FC_SC1101)? NO Check between 8 pin of J502 and pin 40 of IC2602? NO Select INPUT-2 and the input signal on the menu screen are gray. YES Are component video signals fed to pins 2, 4 and 6 of IC501. YES Are component video signals sent to pins 2, ...When INPUT-2 cannot be selected since the characters INPUT-2 on the input switching menu screen. LC-52D43U No video output (5) No video output from external input Is INPUT-2 selected on the input switching menu screen? YES Check LCD_CONTROL PWB. NO Check IC501 and peripheral circuits. NO Check IC8101...
Service Manual
Page 100
... to the LC-52D43U (S87P2LC52D43U) Service Manual. [2] Adjustment When replacing the LCD control PCB, follow these steps to adjust VCOM. 1) Remove the wire from the LCD control PCB CN3. 2) Connect a wire of the VCOM adjustment jig (electronic volume adjustment BOX) to CN3 (see Fig. 1). 3) Turn on the TV set. 4)....) 9) Turn off the jig (turn the AC off). 10)Turn off the TV set to CN3. 12)Reconnect the wire of LCD Control PWB CN3 Jig connection Fig. 1 Jig connecting location Fig. 2 Test pattern selection screen Fig. 3 VCOM adjustment jig (RUNTZA059WJZZ) i Example of the set . 11)Remove...
... to the LC-52D43U (S87P2LC52D43U) Service Manual. [2] Adjustment When replacing the LCD control PCB, follow these steps to adjust VCOM. 1) Remove the wire from the LCD control PCB CN3. 2) Connect a wire of the VCOM adjustment jig (electronic volume adjustment BOX) to CN3 (see Fig. 1). 3) Turn on the TV set. 4)....) 9) Turn off the jig (turn the AC off). 10)Turn off the TV set to CN3. 12)Reconnect the wire of LCD Control PWB CN3 Jig connection Fig. 1 Jig connecting location Fig. 2 Test pattern selection screen Fig. 3 VCOM adjustment jig (RUNTZA059WJZZ) i Example of the set . 11)Remove...