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     LC-42XD1E/RU

4 – 9

<During external connection>                                                 No picture on the monitor (2) -1

             
SCART1:
No picture appears on EXT1 -connected monitor during the tuner (U/V) 
reception. 

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-Connection-Input-Select set to the same as that of the 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 (19) of SCART1 
(J1101)?   

YES

 Check SCART1, external con-
nection or input setting.    

Is video signal sent to 
pin (40) of SCART2 
(J1101)?

YES

Check SCART2, external 
connection or input set-
ting.   

NO

NO

Is video signal (V-
OUT1) sent from pin (2) 
of IC1102 (SW)?

YES

Check SCART1 (J1101) and 
peripheral circuits.    

Is video signal (V-
OUT2) sent from pin 
(2) of IC1101 (SW)?

YES

Check SCART2 (J1101) 
and peripheral circuits.    

NO

NO

Is video signal 
(V-OUT1) sent from pin 
(Y23) of IC3002 
(V-PRO.)?   

YES

Check IC1102 (SW),Connector 
(P1101, SC2702) and
peripheral circuits.    

Is video signal 
(V-OUT2) sent from pin 
(Y20) of IC3002 
(V-PRO.)?

YES

Check IC1101 (SW), Con-
nector (P1102, SC2703) 
and peripheral circuits.    

NO

NO

Is video signal (CVBS) 
sent to pin (AC23) of 
lC3002 (V-PRO.)?   

YES

Check power supply of IC3002 
(V-PRO.) and peripheral cir-
cuits.    

Is video signal (VIN1) 
from EXT1 sent to pin 
(AB22) of IC3002 (V-
PRO.)?   

YES

Check power supply of 
IC3002 (V-PRO.) and 
peripheral circuits.    

NO

NO

Is video signal (IF) sent 
from pin (11) of tuner 
(TU201)?   

YES

Check CONNECTOR (P201, 
SC2705) and peripheral cir-
cuits.    

Check whether video 
signal is sent to pin 
(20) of SCART1.   
   

YES

Check SCART1, CON-
NECTOR (SC2702, 
P1101) and peripheral 
circuits.    

NO

NO

Check 5/33 V power supply pins (10) and (7), I2C line pins (9) and (8) of 
tuner (TU201) and peripheral circuits.    

Check SCART1, exter-
nal connection or input 
setting.

LC-42XD1E/RU

4 – 10

<During external connection>                                                    No picture on the monitor (2) -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-Connection-Input-Select set to the same as that of the 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 (Y20) of IC3002 
(V-PRO.)?

YES

Check IC1101 (SW), Connector (P1102, SC2703) and periph-
eral circuits.     

NO

Is video signal (IN3Y) from EXT3 sent to pin (AB20) of IC3002 (V-
PRO.)?   

YES

Check power supply of IC3002 (V-PRO.) and peripheral circuits.     

NO

Is video signal (IN3YV) sent to pin (2) of IC1201 (SW)?   

YES

Check pin (AB20) of IC3002 (V-PRO.), 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 set-
ting.   

     LC-42XD1E/RU

4 – 11

<When EXT1 is used for external input>                                 No picture on the display (3)-1

             

             

No EXT1 -Composite output of the external input system. 

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-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.

             

             

Is composite video signal 
sent to pin (20) of 
SCART1 (J1101)?   

NO

Check external connec-
tion, input setting, 
SCART1 and peripheral 
circuits.    

Is RGB signal sent to pins 
(15), (11) and (7) of 
SCART1 (J1101)?    

NO

Check external connection, 
input setting, SCART1 
(J1101) and peripheral cir-
cuits.    

YES

YES

Is composite video signal 
(VIN1 (V)) sent to input 
terminal pin (AB22) of 
IC3002 (V-PRO.)?   

NO

Check CONNECTOR 
(SC2702/
P1101),SCART1(J1101) 
and peripheral circuits.     

Is RGB signal (RED1/
GREEN1/BLUE1) sent to 
input terminal pins (Y19) 
(AB19) and (AC18) of 
IC3002 (V-PRO.)?    

NO

Check CONNECTOR 
(SC2702/P1101),SCART1 
(J1101) and peripheral cir-
cuits.     

YES

YES

Is LVDS video signal (TA1

± - TD1±) sent to pins (AB8)/(AC8) - (AB3)/(AC3) of IC3002 (V-PRO.), and 

is CLK signal (CK1) sent to pins (AB5)/(AC5)?
Is LVDS video signal (TA2

± - TD2±) sent to pins (AC2)/(AC1) - (V2)/(V1) of IC3002 (V-PRO.), and is 

CLK signal (CK2

±) sent to pins (Y2)/(Y1)?

NO

Check pins (G14)/(U10) of 
BU3.3V line of IC3002 (V-
PRO.), pins (G10)/(N17) of 
BU2.5V line, pins (U16)/
(G12) of BU1.8V line and 
peripheral circuits.

YES

Is LVDS video signal (TA1

± - TD1±) sent to pins (3)/(2) - (12)/(11) of CONNECTOR CN1 of LCD-

CONT-UNIT, and is CLK signal (CK1

±) sent to pins (10)/(9)?

Is LVDS video signal (TA2

± - TD2±) sent to pins (17)/(16) - (26)/(25) of CONNECTOR CN1 of LCD-

CONT-UNIT, and is CLK signal (CK2

±) sent to pins (24)/(23)?

NO

Check CONNECTOR 
(SC2302, CN1) and HAR-
NESS WIRE (LV).

YES

 Is power (+12V) supplied to pins (1) - (5) of CONNECTOR CN2 in LCD-CONT-UNIT?

NO

Check CONNECTOR 
(CN2,P707) and HAR-
NESS WIRE (PL).

YES

 Replace LCD-CONT-UNIT.

LC-42XD1E/RU

4 – 12

<When EXT1 is used for external input>                                 No picture on the display (3)-2

             
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 “EXIT”.

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.

             
Is Y/C signal sent to pins 
(20) and (15) of SCART1 
(J1101)?   

NO

Check external connec-
tion, input setting, 
SCART1 (J1101) and 
peripheral circuits.     

YES

Is Y/C signal (Y1/C1) sent 
to input terminal pins 
(AB22) and (Y19) of 
IC3002 (V-PRO.)?   

NO

Check CONNECTOR 
(SC2702/P1101), 
SCART1 (J1101) and 
peripheral circuits.   

YES

Is LVDS video signal (TA1

± - TD1±) sent to pins (AB8)/(AC8) - (AB3)/(AC3) of IC3002 (V-PRO.), and 

is CLK signal (CK1) sent to pins (AB5)/(AC5)?
Is LVDS video signal (TA2

± - TD2±) sent to pins (AC2)/(AC1) - (V2)/(V1) of IC3002 (V-PRO.), and is 

CLK signal (CK2

±) sent to pins (Y2)/(Y1)?

NO

Check pins (G14)/(U10) of 
BU3.3V line of IC3002 (V-
PRO.), pins (G10)/(N17) of 
BU2.5V line, pins (U16)/
(G12) of BU1.8V line and 
peripheral circuits.

YES

Is LVDS video signal (TA1

± - TD1±) sent to pins (3)/(2) -(12)/(11) of CONNECTOR CN1 of LCD-

CONT-UNIT, and is CLK signal (CK1

±) sent to pins (10)/(9)?

Is LVDS video signal (TA2

± - TD2±) sent to pins (17)/(16) -(26)/(25) of CONNECTOR CN1 of LCD-

CONT-UNIT, and is CLK signal (CK2

±) sent to pins (24)/(23)?

NO

Check CONNECTOR 
(SC2302, CN1) and HAR-
NESS WIRE (LV).

YES

Is power (+12V) supplied to pins (1) - (5) of CONNECTOR CN2 in LCD-CONT-UNIT?

NO

Check CONNECTOR (CN2, 
P707) and HARNESS 
WIRE (PL).

YES

Replace LCD-CONT-UNIT.