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JVC LT24C340 Blue Led but no go.

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Turnip:
Hi Folks,

Have one in using SSB MSDV3222-ZC01-01 where it seems stuck in S/by. Tried disconnecting the Tact buttons but no difference - Maybe an Eeprom issue ? - Any thoughts - Chris.

downunder:
Hi Chris,

Does PS-ON voltage present when you attempt to turn it on? Do PSU voltages come up if you force the PSU on?

Or am I trying to teach you to suck eggs?      -   Bruce

Turnip:
Thanks Bruce,

First time I've met this 'everything on one board' set. Power supply seems basic with just 12v output with 5v and 3.5 v from Buck converters - All seem OK, even the M/Proc gets slightly warm and the DVD shuffles a bit at plug in.
First thought it might be leaky Tact buttons so isolated them trying use RCU for power-up - No dice so suspect that U6 Spi-Flash GD25Q64 might be corrupt - Read it for fun, full of stuff that means nothing at all to me - Guess a hopeful bin or a panel from the Flea - Seems plenty of panels about - Chris.

Turnip:
Just an update,

Ebay panel sorted it - Thought read the SpiFlash from replacement panel - Might be useful - Chris.

jellytot:
 :sign0098: Thanks for the flash dump Turnip. I had this same model tv that just displayed the jvc logo and then a blank screen and nothing else. Used an RT809f programmer to reflash, handy tool didn't have to remove the back cover.  :wink1: Firmware looks like it got corrupted.  :c017:

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