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     LC-26SA1E/RU, LC-32SA1E/RU

6 – 5

                                             
No sound from EXT5 (AUDIO) connecting an external input 
device.

                                             
<EXT5>
Is HDMI-L audio signal sent from J2701 to pin (14) of IC2704?
Is HDMI-R audio signal sent from J2701 to pin (5) of IC2704? 

YES

Is HDMI-L audio signal sent to pin (10) of IC3002? 
Is HDMI-R audio signal sent to pin (9) of IC3002?

NO

Check output of pins (13) and (3) of IC2704 and peripheral 
circuits. 

YES

Check that Option-HDMI Setup-Audio select is set to “Analog”.

                                            

OK

Is the audio signal properly sent from pins (28) and (27) of 
IC3002?

NO

Check IC3002 or peripheral circuits.

YES

Is the audio signal of pins (1) and (7) of IC303 (OP-AMP) sent 
properly?

NO

Check IC303 or peripheral circuits.

YES

Is the audio output signal of pins (13) and (16) of IC302/IC301 
(MAIN-AMP) normal?

NO

Check IC302/IC301 (MAIN-AMP), HEADPHONE and peripheral 
circuits.

YES

Check CONNECTOR (P301) and Speaker (right and left).

                                             
No audio output from the headphones.

                                             
Is there audio output on pins (2) and (3) of the headphone 
terminal (J1301)?

NO

Is audio input/output signal of pins (3) and (5)/(1) and (7) of IC303 
(OP-AMP) normal? 

NO

Is audio output signal (SPK-OUT L/R) properly sent from pins 
(28) and (27) of IC3002 (VCT)?

NO

Check audio input signal of pin (31) of IC3002 (VCT), pins (18) 
and (33) of the power line, pins (84) and (83) of I2C-LINE, and 
peripheral circuits.

LC-26SA1E/RU, LC-32SA1E/RU

6 – 6

                                            
No audio output from EXT1 (SCART) terminal.

                                            
Checklist: 
1) Is the MUTE button on the remote control set to ON? 

••• Set to OFF.

2) Check the connection to external devices. 

••• Is there any improper connection?

                                            
Is audio signal sent to pins (3) and (1) of EXT1 (J1101)?

YES

Check the connection to EXT1 (J1101) and external devices.

                                            

NO

Is S-MUTE-LINE [IC1710 (pin 100)] at H?
(Check Q1106/Q1105 operation.) 

                                            

NO

Is audio signal sent from pins (24) and (23) of IC3002? 

NO

Check the power supply 8/5 V pins (18) and (33) of IC3002 and 
peripheral circuits.

YES

Check the audio signal output line from pins (24) and (23) of 
IC3002 to pins (3) and (1) of EXT1.

                                            
No audio output from EXT2 (SCART) terminal.

                                            
Checklist: 
1) Is the MUTE button on the remote control set to ON? 

••• Set to OFF.

2) Check the connection to external devices. 

••• Is there any improper connection?

                                            
Is audio signal sent to pins (24) and (22) of EXT2 (J1101)?

YES

Check the connection to EXT2 (J1101) and external devices.

                                            

NO

Is S-MUTE-LINE [IC1710 (pin 100)] or S2-MUTE-LINE [IC3003 
(pin 26)] at H? (Check Q1102/Q1101 operation.)

                                            

NO

Is audio signal sent from pins (22) and (21) of IC3002?

NO

Check the power supply 8/5 V pins (18) and (33) of IC3002 and 
peripheral circuits.

YES

Check the audio signal output line from pins (22) and (21) of 
IC3002 to Q1103/Q1104/Q1201/Q1202.

     LC-26SA1E/RU, LC-32SA1E/RU

6 – 7

                                            
No audio output from AUDIO OUTPUT terminal.

                                            
Checklist: 
1) Is the MUTE button on the remote control set to ON? 

••• Set to OFF.

2) Check the connection to external devices. 

••• Is there any improper connection?

                                            
Is audio signal sent to pins (13) and (15) [L/R (white) (red)] of 
AUDIO OUTPUT terminal (J1201)?

YES

Check the connection to AUDIO OUTPUT terminal (J1201) and 
external devices.

                                            

NO

Is S-MUTE-LINE [IC1710 (pin 100)] at H?
(Check Q1204/Q1203 operation.) 

                                            

NO

Is audio signal sent from pins (22) and (21) of IC3002?

NO

Check the power supply 8/5 V pins (18) and (33) of IC3002 and 
peripheral circuits.

YES

Check the audio signal output line from pins (22) and (21) of 
IC3002 to Q1103/Q1104/Q1201/Q1202.

LC-26SA1E/RU, LC-32SA1E/RU

6 – 8

                                            
No picture appears on LCD during the tuner (U/V) reception.

                                            

 

Checklist: 
1) Is “INPUT SOURCE” button 

on the remote control set up correctly? 

••• See the operation manual and set “INPUT SOURCE” to “TV”.

2) Is MENU-PICTURE-Contrast/Brightness set to “MIN”? 

••• Set it to an appropriate level.

3) Is ANT-CABLE disconnected or connected improperly? 

••• Connect it correctly as per the operation manual.

YES

Is level of pins (4) and (5) of tuner (TU201) and pins (10) and (11) 
of IC201 (IF-DEMOD) at H?

NO

These are communications lines for control (I2C). Follow the 
path and check whether they are forced to L (PULL_DOWN). 

YES

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

NO

Check the tuner (TU201) and peripheral circuits.

YES

Is video signal sent from pin (17) of IC201 (IF-DEMOD)? 

NO

Check FL201 (SAW-FIL), IC201 and peripheral circuits.

YES

Is the video signal VIN1 (ATUNER-CVBS) sent to pin (191) of 
lC3002 (VCT)? 

NO

Check IC201 (IF-DEMOD), CONNECTOR (P201 /SC2705) and 
peripheral circuits.

YES

Is LVDS video signal (LVDS_0N/0P-3N/3P) sent to pins (141)/
(140) - (129)/(128) of IC3002 (VCTP), and is CLK signal 
(LVDS_CN/CP) sent to pins (132)/(131)? 

NO

Check pins (192)/(170)/(133) of BU3.3V line of IC3002 (VCTP), 
pins (185)/(169)/(142) of 1.8V line and peripheral circuits.

YES

Is LVDS video signal (LVDS_0N/0P-3N/3P) sent to pins (12)/(13) 
-(24)/(25) of CONNECTOR CN1 of LCD-CONT-UNIT, and is CLK 
signal (LVDS_CN/CP) sent to pins (21)/(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.