Neon C3298DVB stuck in standby

[sienoki]

Re: Neon C3298DVB stuck in standby

Fuse tested ok..do i black probe screw chassis n red probe power i pins on mainboard on continuity setting?
Took the shield off & cant seem to find any info on the ic..thx

What type of cystal is this as im gonna replace it & not sure what to get..thx
https://www.badcaps.net/forum/attach...5&d=1345298168

[tom66]

Re: Neon C3298DVB stuck in standby

You would need a scope to debug the crystal. I'm in Uni from late September but you'll have to give me a couple of weeks to get settled. If you have any troublesome TVs left, let me know.

[sienoki]

Re: Neon C3298DVB stuck in standby

You would need a scope to debug the crystal. I'm in Uni from late September but you'll have to give me a couple of weeks to get settled. If you have any troublesome TVs left, let me know.

Ok fella catch up with u when u settled in..im stuck with this set now as i dont want to spend much more on it..thx
If u help me i give u free bus travel

[sienoki]

Re: Neon C3298DVB stuck in standby

Ok fella catch up with u when u settled in..im stuck with this set now as i dont want to spend much more on it..thx
If u help me i give u free bus travel

Im off 2 farnells tommoz 2 stock up on bits carnt i just get a 12.000mhz quartz crystal 1s used for IC & microprocessors Order Code:9712950 from farnells..they only cheap & easy 2 install..thx

[sienoki]

Re: Neon C3298DVB stuck in standby

Im off 2 farnells tommoz 2 stock up on bits carnt i just get a 12.000mhz quartz crystal 1s used for IC & microprocessors Order Code:9712950 from farnells..they only cheap & easy 2 install..thx

Tom scoped this mainboard 4 me & found the new epprom wasnt working proper..so i probably got ripped off with a blank 1..anyways ive ordered another mainboard from EMOs..installed it & she fired right upBUT the mainbord must have been configured with a different panel..mines a samsung panel..my problem is i cant access service mode 2 see if i can change any panel settings..ive tried source 2580 but 2 no avail
This is the remote i got with the set & looking on ebay its saying its an original so im stumped..thx

[tom66]

Re: Neon C3298DVB stuck in standby

Try this

Select TV mode
Press Menu or LCD Menu
Enter 1147
Press Menu or LCD Menu (optional)

[sienoki]

Re: Neon C3298DVB stuck in standby

Try this

Select TV mode
Press Menu or LCD Menu
Enter 1147
Press Menu or LCD Menu (optional)

Source 2580 was the correct code..it had 2 be done when the tv was on & not in standby doh!..when in there i turned TI MODE off in the function section & all is good

[tom66]

Re: Neon C3298DVB stuck in standby

Great, it's now fixed?

[sienoki]

Re: Neon C3298DVB stuck in standby

Great, it's now fixed?

Its vestel inside so probably not for long..will just sell it on now & probably get what ive got in it bk

[tom66]

Re: Neon C3298DVB stuck in standby

Neon isn't Vestel.

Doesn't mean they are any good though!

If I were keeping it I would re-cap the PSU.

[OHM SUPPLIES]

Re: Neon C3298DVB stuck in standby

Hello,
Im a new member but I’d like to interject. Please do not short pins 5 & 6 out on Eeproms, espachally this type. (25x32v) unless you are aware of what you’re trying to do. On this IC it won’t work but will probably corrupt any info. in the ic (unless you know that the ic is already corrupted). A replacement ic would be a preferred option meaning you don’t have to buy the main board.
Regards
Andy

[tom66]

Re: Neon C3298DVB stuck in standby

It is not an EEPROM. It is a serial flash for firmware.

On this device a 5-6 jump would not work because the idea behind jumpering 5-6 is that it will cause the micro to ignore the eeprom and go to default values.

Due to a lack of pull ups, 5-6 on this device would likely damage the processor due to excessive output current if continued for too long. The flash device itself would likely survive.

[OHM SUPPLIES]

Re: Neon C3298DVB stuck in standby

Hello,

By shorting out pins 5 and 6 (clock and data) you are trying to blank the eeprom. On some designs of board, the micro will re-write this on switch on, on some the info. in the eeprom is needed for the set to work.
The ic is an eeprom, which is a very broad term, but has a different pin out than a 24cxx etc. The program contained in these is very specific to each model, so replacing it with the correct type is the best way to repair the set.

regards
Andy

[tom66]

Re: Neon C3298DVB stuck in standby

I'll repeat. It's not an EEPROM. An EEPROM is a low density, byte-programmable device. A serial flash is only page programmable (down to nearest 512 byte or 4Kbyte typically.) Which means it's difficult to use it to store settings (to change one byte you must erase full page, then write back the page with the changed byte.) I learned this the hard way with a project of mine.

EEPROMs are typically used to store the user configurations like channels, previous input used, input labels, last settings etc. as well as service settings like panel make/model, hours used, region, etc. Serial flashes are typically used to store firmware (the TV's software.) The processor is dead without firmware. The firmware is the software for the TV - interface, processing, etc.

Sometimes the firmware can be fixed to e.g. having a DVD player or a certain panel. Other times it is generic across all models and the EEPROM changes those settings.

The 5-6 jump trick I know of only works on some older Samsung models -- it's probably a mere coincidence that tricks the microprocessor into booting. It's not directly erasing the EEPROM, though. When the TV sees the EEPROM cannot be read, it loads it with default values.

[multimeter]

Re: Neon C3298DVB stuck in standby

tom is right,they are serial flash chips,the same on the neon c2469f model (location u7),i did before think they were a eeprom but i was wrong.

there is someone selling them somewhere cant remember who,but is asking about 17 odd pounds for them plus postage etc !,bit of a rip off really.

ive got a load of winbond 24*32 chips coming from china and plan to program these,so if any one wants one for the 24" version let me know,i succesfully programed a new one i had with the firmware,tv fires up no problems. will prob just flog them for a fiver each ,lots better than 17 quid!

i will also do the c3298dvb series too when i get the firmware

[tom66]

Re: Neon C3298DVB stuck in standby

Yeah -- if I could get hold of the firmware, I would both upload them onto the internet for all to download, and I would sell chips for a nominal price. LOL, not 17 quid. multimeter, do you think you could send me a copy of that file to upload to tgohome.com/ServiceManuals?

[multimeter]

Re: Neon C3298DVB stuck in standby

Yeah -- if I could get hold of the firmware, I would both upload them onto the internet for all to download, and I would sell chips for a nominal price. LOL, not 17 quid. multimeter, do you think you could send me a copy of that file to upload to tgohome.com/ServiceManuals?

tom i sent the .BIN file to you a while back for the c2469f model,about 4 months ago i think.

i dont have the BIN file for the c3298dvb model as yet but still looking !

[tom66]

Re: Neon C3298DVB stuck in standby

tom i sent the .BIN file to you a while back for the c2469f model,about 4 months ago i think.

i dont have the BIN file for the c3298dvb model as yet but still looking !

Ah I've probably uploaded it already. I'll see if I can find any other .BINs.

[multimeter]

Re: Neon C3298DVB stuck in standby

Ah I've probably uploaded it already. I'll see if I can find any other .BINs.

there might be a chance that the c2469f .BIN file MIGHT work on the larger 32" model,by going into service menu and changing the screen size.

i dont have a 32" model at the moment,one may come up soon,be interesting to see if it will work

[flocko]

Re: Neon C3298DVB stuck in standby

Hi I have just today got a soundwave C3298f stuck in standby.have checked it by disconnecting the Av board from the power board and with a resistor between 5v s/by and ps/on all the voltages come up,so i am thinking it could be the flash chip/ eeprom,could this be wiped and reprogramed,or is a new reprogramed chip needed.The other problem is i have no remote.