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•  Is the AC cord disconnected?
•  Has the power been turned on? 
• Make sure the 

a (POWER) switch of the TV is set to ON.

• External influences such as lightning, static electricity, etc., may cause  improper

operation. In this case, operate the unit after first turning the power off, or
unplugging the AC cord and re-plugging it in after 1 or 2 minutes.

•  Are batteries inserted with polarity (e, f) aligned?
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminated to remote control sensor?

•  Adjust the picture levels.
• Is the room too bright? The picture may look dark in a room that is too bright.
•  Check the system setting.
•  Check the input type setting.

• The unit’s internal temperature has increased.

Remove any objects blocking vent or clean.

•  Check the power control setting. 

•  Is connection to other components correct?
•  Has input type setup been done correctly after connection?
•  Is the correct input selected? 
•  Is a non-compatible signal being input? 
•  Is picture adjustment correct? 
•  Is the antenna connected properly? 

•  Is the volume too low? 
•  Make sure that headphones are not connected. 
• Make sure the sound is not set to Mute.

• When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly

delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.

• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near

a heater, as this may cause the cabinet to deform and the LCD panel to malfunction.
Storage temperature: –20°C to +60°C (–4°F to +140°F).

• No power.

• Unit cannot be operated.

• Remote control unit does not

operate.

• Strange colour, light colour, or

dark, or colour misalignment.

• Power is suddenly turned off.

• No picture.

• No sound.

<Power supply> 

Is the power supply cord properly connected to the Main unit? 

Replace F701 and F702, and then turn on the power. If a fuse 
still blows, replace VA702, D701 and IC701, and then check again. 

Replace F703 and then turn on the power. If a fuse still blows, 
replace D763 and IC703, and then check again. 

Are F701 and F702 normal? 

Is F703 normal? 

Reconnect the power supply cord and turn on the power. 

Are the wire harness, FFC, etc. in the set connected properly? 

Reconnect the wire harness, FFC, etc. and check again. 

Is a voltage of about 380 V applied to C709 and C710 when 
power is turned on? 

Check the 380V system power supply circuit. (L703, IC701, 
Q701~5, D705, TH701) 

Is thermal fuse (F704) normal? (117°C specification)

After replacing F704 and rechecking the mounting of D701, 
D705, Q701, Q702, Q710 and Q711, supply power again. If the 
fuse burns out again, replace the said parts and recheck.

Is voltage generated at the +13V line (pin 1 of CN706) 
immediately after supplying power?

Check the power supply circuit of the 13V system.
(T701, T702, F704, Q706-14, PC701, PC703-4, D708-17, 
IC702, L710, Q733-6, D735-6, D771, IC706)
Is "H" signal sent to the PS_ON (pin 5 of CN707) line?

Is +3.3V line (pins 11/12 of CN706) normal immediately after 
supplying power?
Is F1001 (2.5A) of the Main PWB normal?

Check the power supply circuit of the +3.3V line system.
(IC715, L715, T703, IC703, PC701-702) (F1001)

Is each REG-IC output normal?
(IC708 (4V), IC740 (33V), IC709 (5V), IC713 (12V), Q760 (6V))

Check each REG-IC and each line.