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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. 

• 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.

• 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).

<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.

No audio output on the

 reception of 

UHF/VHF

.

Confirmati

on of the settings:

1) Is volume of REMOCON set to MIN or MUTE? 

… Set to any 

value.

2) 

Are headphones connected to 

HEADPHONE (J402)? 

… Disconnect.

3) Is 

ANT

-CABLE disconnecte

d or is there a conne

ction error? … Connect 

according to the operat

ion manual.

4) Is "VOLUME" in MENU-SOUND-LEV

ELS-S

PEAKERS-VOLUME set to 

"MIN=0"? … Set to the desired val

ue between 

"0-100".

Are audio signals (S

PL/R) sent from the 

pins (123)(124) of IC1001

 (VCTI)?

Are audio signals of 

the pins (1)(7) of 

IC1351

 sent normally?

Are audio input signals of the pins (1

1)(15)

of IC1301 (AUDIO-AMP-IC

) normal?

Are audio output signals of the pin

s 

(28)(31)/(24)(27) of IC13

01 (AUDIO-A

MP-

IC) normal?

Check the connector (P1301) and 

the left 

and right SP-boxes.

Check IC

1351 or its peripheral 

circuits.

Check the HEADPH

ONE JACK 

(J402) or its peripheral circui

ts.

Check IC1301 and its peripheral 

circuits.

Are IF signals (IF+/IF-) sent 

to the pins 

(109)(1

10) of IC1001 (VCTI)?

Is IF signal sent from the 

pin (1

1) of 

TUNER (TU1201)?

Check if power of 33V

/5V is supplied to 

the pins (9)/(7) of 

TUNER (TU1201). Or 

check its peri

pheral parts.

Check if +8V

, +5V and +3.3V are supplied 

to the pins (126), (106

) and (105) of 

IC1001respectively

. Or check its 

peripheral circuits.

Check SF1201 and its peri

pheral circui

ts.

No audio output from EXT1 Terminal.

No audio output from EXT2 and EXT3 
Terminals.

Is output (A-OUT-L/R) of Pins 
(120)(119) of IC1001 (VCTI) normal?

Are the signals between pins (120)(119) 
of IC1001 and pins (1)(3) of SCART2 
(SC1452) normal?. Are the signals 
between pins (120)(119) of IC1001 and 
pins (5)(8) of SCART3 (J401) normal?.
IC1402

Check (Q1012, Q1406, Q1408) and 
(Q1013, Q1403, Q1404) of the S-Mute 
circuit.

Is output (A-OUT-L/R) of Pins 
(122)(121) of IC1001 (VCTI) normal?

Are the signals (A-OUT-L/R) between 
pins (122)(121) of IC1001 and pins 
(1)(3) of SCART1 (SC1451) normal?.

Check Q1011, Q1004 and Q1005 of the 
2S-Mute circuit and 2S-MUTE-LINE.