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MS6M48.1C MS6M48.6B

Circuit Diagram of these chassis are same.

No standby.

Check output voltage of U1 U3 U4 and U5 

Backlight not working, sound ok.

Check 24V supply voltage of inverter board. If this voltage is missing, check power supply board. If 24V is normal value, check 3V via pin 3 and pin 4 of CN2. If 3V is missing, check Main IC. If 3V is normal value, replace inverter board.

Entering The Service Menu : Call 'menu' and press '1 1 4 7' by remote control.


GT-613B

Left side of screen is dark.

Replace C7 

B+ is low.

Replace C510

B+ is high.

Replace C508 C509

Supply voltages unstable.

Check Q501 Q502 Q503

Smps hickuping.

Replace D509

Not working.

Replace D213

Not stay in standby.

Check/Replace Q507 Q506 Q102 Q103 Q4 U201

Horizontal drive not working.

Check U201

Vertical deflection not working.

Replace U5 and check R423 R246 R417

Vertical deflection unstable.

Replace D7

2 vertical lines on screen.

Replace C410

Q2 is defective.

Replace C261

Unstable synchronous.

Replace C252

Narrow Vertical line .

Replace C420

All sides of screen is small.

Replace C4

Not save user settings.

Replace Q208

No osd.

Replace D111 D113 C120

No sound.

Replace C207 and check C125

Brightness unstable.

Replace D208

Half screen.

Replace D401

Poor sound.

Replace C750 and check C217

Auto program not working.

Replace D131

No color.

Replace C246 C247

Unstable color.

Replace Q603

Sound cut off.

Replace C752

Muting not working.

Replace D113


GT646   GT646 Bottom

Narrow screen and vertical lines.

Replace C517

Vertical lines on top of screen.

Replace C424 C425


THP758   THP1008 Bottom

No standby (led do not light).

Replace V512

Horizontal drive not working.

Replace V433

TV stuck in standby mode.

Replace N202


7BMIN043   7BMIN043 Bottom

No standby (led do not light).

Replace C517

TV stuck in standby mode.

Replace VD520 VD521 

Not working.

Replace R052 VD053 R051 VD520 VD521 

B+ is high

Replace N501 VD574 V574

TV goes protection mode.

Replace V574 or N401


TV not turning on.

Check/Replace R502 Q701 D402 C402 

R502 is defective.

Replace Q504

Q502 is defective.

Replace T501 R516

B+ is unstable.

Replace Q501

B+ is low.

Replace D510 and check C517 Q702

B+ is high.

Replace C508

Not working.

Check/Replace C506 D505 D506 D511 R514 R515 

TV not turning on.

Replace R708 T701 and check C455

R707 is defective.

Replace Q702 T702

Q702 is defective.

Replace C717 C719

Q702 is warming.

Replace C517 T702

Screen shifted to the left.

Replace C728

Screen is dark.

Replace Q402 and check R715

Brightness is unstable.

Replace D709

No color.

Replace DL401 X402

Vertical deflection unstable.

Replace C701 D704 R703 C514 C434

Narrow vertical line.

Replace R435

Horizontal deflection unstable.

Replace D401 VR402

Green more.

Check/Replace R609 VR602

No picture on screen.

Replace C604

Poor sound.

Replace C301

Low sound.

Replace C309

No sound.

Check/Replace IC301 C320 IC801


T3P05

Fuse is defective.

Replace Q613 Q611 Q612 Q631 Q634 IC601 ZD631

B+ is low.

Replace Q302

Stuck in standby mode.

Replace X101

East west unstable.

Replace D301 Q303

Monochromatic horizontal lines on screen.

CRT is defective

Poor sound.

Replace C635


Not working.

Replace R503 C506 R524.

No standby.

Replace L504

Smps hickuping.

Replace Q302 or Q502

Both sides of screen is narrow.

Check/Replace VR501 C518 C315

B+ is high

Check/Replace VR501 C508 D505 D508

B+ is low

Check/Replace Q502 D505 D506

Q302 is defective

Replace C510 C508

Smps not working

Replace D511

Screen voltage unstable

Replace Q502

R516 is defective

Replace Q504

Horizontal drive not working.

Replace R302

No picture, osd ok.

Replace Q201

Stuck in standby mode.

Replace D204

Vertical deflection unstable.

Replace D208

No color.

Replace R245

Unstable colors

Check/Replace DL202 C236 C237 VR201

Q504 or Q302 is defective.

Replace D204 D205

Bad tuning.

Check/Replace Q801 Q818 IC802 IC805 IC803

No osd.

Replace IC802

Can not find channel.

Check/Replace IC802 IC803 IC804

Stuck in standby mode.

Check/Replace Q810 Q811 Q812 Q507  IC802

No osd.

Replace Q813 Q814

Does not respond the RC.

Replace C601

Turns off by it self.

Replace IC802 C312 C313

Q504 is defective

Replace T501

No standby.

Check/Replace D510 IC806 R518 R519 D510 D511

Not stay in standby mode.

Check/Replace Q507 Q506 Q508

Q507 is defective.

Replace C518

Stuck in standby mode and Q302 is warming.

Replace D309 C261

Vertical deflection not working.

Replace R310 D307 Q304

Vertical lines on top of screen.

Replace C317 Q305 Q306

Blue color missing

Replace R415

Unstable screen voltage.

Replace R417

B+ voltage increases.

Replace D309

Screen is red.

Replace C401 Q401

Narrow vertical line.

Replace C320 Q305 Q306

Horizontal drive not working.

Replace R305 Q301 T301

Q302 is defective.

Replace C312 C313. If the problem persists, check YOKE

No picture and sound but horizontal drive is working.

Replace R309 D308 

No color.

Replace C301


Horizontal drive not working.

Replace C132

Horizontal lines across the top of the screen.

Replace D302


MEK-UOC 14/21   MEK-UOC 14/21 Bottom

No standby.

Replace N501 

Smps not working.

Replace D551

Rainbow colors on screen.

Replace N301

Sound cut off.

Replace C553


No standby.

Replace N801 V802 V807

Stuck in standby mode. 3.3V is missing.

Replace V803 V809 VD819 VD819A

Stuck in standby mode. 3.3V is ok.

Check/Replace N201 N202 


No standby (led do not light).

Replace N501 VD509

Smps not working.

Replace N504 VD524

N501 is defective.

Replace VD524 T451

Stuck in standby mode.

Check/Replace N702 N301

Rainbow colors on screen.

Replace N401

Can not find channel.

Replace N703

No picture, osd and sound ok. 

Replace C460 VD460

Screen is matt.

Replace R480

T2S26   T2S26 Bottom

TV turns on by it self and automatiCally goes to standby.

Replace C457

Standby led is dead and not working after turn on.

Replace C835

Not working.

Check/Replace V513 V511 V553 V512 N501 R520 R521 VD514 VD516 VD518 VD519 VD503 VD504 VD505 VD506 VD561 C507 R524 R525 R814

Red color is missing.

Replace Q501 Q502

Locked.

Press three times "PP" button on RC or push and hold "PP" or "OSD" button.


Not working.

Replace VD503

No standby (led do not light).

Replace VD512. If the problem persists, replace R510 VD551 N501

No sound.

Check/Replace VD555 R562 N601 C114

Sound cut off.

Replace C114 as 10UF/25V capacitor

Vertical deflection not working.

Replace VD451

Vertical deflection unstable.

Check/Replace C452 VD402 R401 C120 C118

Rainbow colors on screen.

Replace N451 R450 R452

Horizontal drive not working.

Replace R551

TV stuck in standby mode and R434 is warming.

Replace V431 

TV goes protection mode.

Replace V432

No color.

Replace G201

Screen is dark.

Replace R491

Screen is matt.

Replace VD204 

Can not find channel

Check/Replace N705 C110 C113 V102 V701

TV stuck in standby mode.

Check/Replace L201 L202 L203 R705 R75 G201

TV goes standby after using keypad.

Replace L203


Not working.

Replace IC600 D603 R602 D600

No standby (led do not light).

Replace ZD620

Standby led is dead and smps hickuping.

Replace R614

Smps output voltages unstable.

Check/Replace R635 R637 R638 R639 Q631 ZD631

TV stuck in standby mode.

Check/Replace IC101 R75 Q683 ZD631

B+ is low.

Check/Replace R636 ZD102 Q106

No sound.

Check/Replace R633 IC701 Q702 IC201

Muting not work.

Replace R110

Vertical deflection not working.

Replace R345 IC331

Vertical deflection unstable.

Check/Replace C331 C349 Q351

Horizontal sides of screen is too wide.

Replace L358 or Q358

Horizontal sides of screen is narrow.

Replace Q358 

Horizontal drive not working.

Check/Replace R302 R310 R301 R319 Q301 D301

No color.

Check/Replace X240 C240 C242

Screen is negative.

Replace IC640

Unstable synchronous.

Replace C250 or R250

Screen is white.

Replace L212 or L217

Can not find channel.

Check/Replace IC643 Q154 R151 L276 SF201

No picture, osd ok. 

Replace Q213 


Standby led is do not lighting.

Check/Replace VD901 IC901 V902

Horizontal drive not working.

Check/Replace Q402 Q404 Q405 

Q403 is defective.

Replace Q402 D403

Q401 is warming.

Replace C403 

Not working.

Replace R922 Q920 K901


VE04

Not working.

Replace IC801 ZD802

B+ is high.

Replace R811

Horizontal drive not working.

Replace V401 VD410


STV337

No or low sound.

Replace C711 C712

Rainbow colors on screen.

Replace N902

No standby (led do not light).

Replace VD555

Vertical deflection not working.

Replace VD901

B+ is high

Replace V551 VD551


P-2910 P-2911TF

 

East west unstable.

Replace C309

Not working.

Replace D614 D616 D617 D619 Q603

TV stuck in standby mode.

Main IC

No osd.

Replace D315 D316 D317 D318


Fuse is defective. After replace defective again.

Replace C514

Not working.

Replace V924 V921

Vertical deflection not working.

Replace R550

East/West unstable

Replace C431

Horizontal drive not working.

Replace VD261

TV stuck in standby mode

Replace VD517


ST6AN

Not working.

Replace R602 D603 D604 D605 D606 Q613

Q613 is defective.

Replace Q612 (Q613 is a 10A NPN transistor)


STV-137

Vertical line on screen.

Replace D703

Turns off by it self.

Replace C25

No color.

Replace C216

Vertical deflection is not working.

Replace R140

No osd.

Replace D709


TV stuck in standby mode.

Replace RC. This is TV turn on only original RC.

Single vertical line on the screen.

Replace R413 C412


Sunny-14/21   Sunny-14/21 Bottom

No standby.

Replace N501A VD509

Stuck in standby mode.

Replace VD524

V401 is defective. All capacitors and YOKE is ok but after replace defective again.

Replace T401

TV goes protection mode.

Replace N301

Horizontal lines across the top of the screen.

Replace C314 C315

Rainbow colors on screen.

Replace N301

Standby led blinking.

Check V564 D654 N504

No sound. Sound ic is ok.

Replace N704

Sound is very high

Replace N704

Horizontal sides of screen is narrow.

Replace C471


M28B   M28B Bottom

Fuse is defective.

Replace Q804 Q803 R815 D801 D802 D803 D804 R801

Standby led is lighting too late.

Replace C811

No standby (led do not light).

Replace Q204

Stuck in standby mode.

Replace RC. This is TV turn on only original RC.


M35 M35A   M35 M35A Bottom

These chassis is the same. Except for minor differences.

B+ is high

Replace R831

B+ is low

Replace IC802

Smps hickuping.

Replace D831

Stuck in standby mode.

Check/Replace Q830 Q831 Q832 D839. If the problem persists, replace IC201 

Vertical deflection not working.

Check/Replace R322 R323 D302

Horizontal drive not working.

Check/Replace Q401 T402


M62 ETC010 M62 ETC010 Bottom

These chassis is the same. Except for minor differences.

B+ is high.

Replace R800

Standby led not lighting.

Replace IC801 IC805. If the problem persists, check 7V via D868.

TV goes protection mode.

Check supply voltage (3.3v & 1.8V) of IC201. If these voltages are correct, replace IC001

No sound.

Check/Replace IC600 IC001.

After Inserting new eeprom reset the TV.


No standby.

Replace R513 N504

Fuse is defective.

Replace N504 VD509 VD503 VD504 VD505 VD506 R502

TV goes protection mode.

Check/Replace N301 N302

V401 is defective

Replace T401

Relay tripping repeatedly.

Replace V501 VD501

Vertical deflection unstable.

Replace C747 C741

Rainbow colors on screen.

Replace N301

No sound. Sound IC is ok.

Replace N704

Sound is too high.

Replace N704




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AY160S-4F01

  • BD1 : KBJ406G
  • Q201 : 12N50E
  • Q101 : MDF2N60 or MDP2N60
  • Q102 : ME60N03
  • Q12 Q13 : 1P (2N222A)
  • Q202 : 2E (MPSA93)
  • U2 : OB6563 AY160S-4F01 Bottom
  • U301 : LD7575
  • ZD1 : X8
  • R219 R219A R219B : 0.82Ω 

Fuse blow.

Replace BD1 Q201 and D202

5V is missing.

Replace U101 or T1

24V is missing.

Check U301 Q301 and T2

24V is low.

Firstly, check capacitors. If problem persist, check U302 and PC3

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Imper chassis

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