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Equipment Repairs => LCD TV forum => Topic started by: t1412 on May 06, 2018,09:53:38

Title: techinka lcd 40- 270
Post by: t1412 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

Title: Re: techinka lcd 40- 270
Post by: Turnip on May 06, 2018,12:11:45

Hi Shaun, suspect Eeprom dubious - Have a bin for the set - All the best - Chris.

Title: Re: techinka lcd 40- 270
Post by: t1412 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

Title: Re: techinka lcd 40- 270
Post by: Turnip 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.

Title: Re: techinka lcd 40- 270
Post by: t1412 on May 07, 2018,14:08:50

hi chris i'found another mainboard which i had but still the same thanks

shaun   

Title: Re: techinka lcd 40- 270
Post by: Turnip 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.