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JVC LT24C340 Blue Led but no go.

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Turnip:
Nice one JT,

Checked around about the RT809f programmer and some folks can't suss how it works (Well I can't anyway) as seems info is mainly in Chinese.

A short course would be useful as great to flash corrupt Eeproms with the set back in place - Chris.

jellytot:
Yes the chinglish is hard to follow and a real pain using google translate. what worked for me on this set not sure about other sets and models though.IT was relatively straight forward. you connect the RT809F using vga port on the tv. select the auto detect and up comes the micro and type of flash, select read and it takes a dump, likewise you just select file and write to spi flash. also if it locks you out it advises what to do i.e. short pins 3 and 8 of spi and select read or write and when it starts you can remove the short. This worked fine on this set  :thumbup: I have only recently got it so am still learning.  there is software in english for the programmer and seems to have regular updates.

downunder:

Ironically I have just received a JVC LT40N530A where the red LED flickers as it turns on (this could be normal), tv comes on with the JVC logo screen, then it cycles between no screen and JVC logo for some time before it eventually fires up and works properly. Like yous, Chris, everything is on a single board. I suspect the eeprom but don't have a reader. Might have to check out the flea.                 

Bruce

Turnip:
Hi Bruce, seems typical with Chinese JVC sets (and most other Chinese wonders)

Amazed though that a 40 inch could have a similar single board format - Guess LED's are really efficient even if they only last a year or two - Chris.

downunder:

Further to this:

Was having trouble locating a supplier for this board, so I decided to cook it.

Unfortunately, the oven timer was out of action and I forgot about it, so it was cooking for around 1.5 hours.

All the electros had popped but I decided to try it anyway. Surprisingly it worked but the mains filter caps went up in smoke.

Changed all the damaged caps (9 in total) so now it's on soak test. Hopefully, sometimes you gotta get lucky.

Bruce

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