Author Topic: techinka lcd 40- 270  (Read 240 times)

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t1412

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techinka lcd 40- 270
« on: May 06, 2018,09:53:38 »
afternoon fella's had his technika lcd40-270 come in flashing red standby light, open it up found 3 470uf 35v swollen and and 1500uf 10v swollen replaced all the caps  now i've got no standby light faint ticking sound power is a G0281D mainboard is a T-MSD306.8B-2, 5V  3.4 no 12v snookered thanks for your time

shaun

Mulja tv repair portal

techinka lcd 40- 270
« on: May 06, 2018,09:53:38 »

Turnip

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Re: techinka lcd 40- 270
« Reply #1 on: May 06, 2018,12:11:45 »
Hi Shaun, suspect Eeprom dubious - Have a bin for the set - All the best - Chris.

t1412

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Re: techinka lcd 40- 270
« Reply #2 on: May 06, 2018,12:30:37 »
not sure how to do it chris has the tv don't switch on thanks for the file 

shaun

Mulja tv repair portal

Re: techinka lcd 40- 270
« Reply #2 on: May 06, 2018,12:30:37 »

Turnip

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Re: techinka lcd 40- 270
« Reply #3 on: May 07, 2018,10:51:55 »
Hi Shaun,

You'll need an Eeprom programmer where you - Copy the old file just in case - Blank the Eeprom then reload with fresh data where it might work, or not, if the new data is duff or from a slightly different SSB/Screen combination.

Most Eeproms can be read, blanked and reloaded on the board. Biggest problem is to get the 8 pin clip to locate correctly.

Sometimes takes 50 tries before chip can be read, other times it's a doddle and works first time.

Otherwise remove the chip and use a chip holder which always works, but then you have the issue of removal and replacement without damaging the SSB print.

It's all a bit of a pain, but possible - Chris.

t1412

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Re: techinka lcd 40- 270
« Reply #4 on: May 07, 2018,14:08:50 »
hi chris i'found another mainboard which i had but still the same thanks

shaun   

Turnip

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Re: techinka lcd 40- 270
« Reply #5 on: May 09, 2018,13:27:05 »
Hi Shaun,

Suspect best option if you have one. Eeproms can be a bit of a pain due to various issues- Chris.

Mulja tv repair portal

Re: techinka lcd 40- 270
« Reply #5 on: May 09, 2018,13:27:05 »

 

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