Neon C3298DVB stuck in standby

[sienoki]

Hi guys n gals..been a while since last on site..ive bought this set cheap hoping for just bad caps..upon inspection alls good inside..the psu is giving the correct voltages so started searching on net for info.

This brand of tv is also made by CELLO..after much searching there seems to be many known cases of the eprom being corrupt.

The main board is BOARD No: CV109H V2.1 & the eprom is IC REF: U6...25X32VSIG..0932

I have no knowledge or equipment in programming & flashing etc..i was hoping it was just caps that need replacing..so im hoping you guys might point me in the right direction..thx

[tom66]

Re: Neon C3298DVB stuck in standby

What is the model of the main board?

Have you tried the pin 5/6 shorting trick which works on Samsung TVs?

[sienoki]

Re: Neon C3298DVB stuck in standby

What is the model of the main board?

Have you tried the pin 5/6 shorting trick which works on Samsung TVs?

Hi tom thx for reply..the main board model is mentioned in my post fella..never done a eprom short before..is there an easy way of doing this..thx

[multimeter]

Re: Neon C3298DVB stuck in standby

just use a watch flat screwdriver,short the pins together ,then power on the tv, pull the screwdriver out ,i think ive got the BIN file for cello tvs somewhere if you get a programmer

[tom66]

Re: Neon C3298DVB stuck in standby

I have a little board I made up for programming EEPROMs (uses a PICkit 2) - so if you need a programmed EEPROM (SMD or through hole), let me know. Multimeter, do mind sending me that .BIN; I could upload it?

[multimeter]

Re: Neon C3298DVB stuck in standby

I have a little board I made up for programming EEPROMs (uses a PICkit 2) - so if you need a programmed EEPROM (SMD or through hole), let me know. Multimeter, do mind sending me that .BIN; I could upload it?

yeah no worries,its on my computer,il dig for it,and send it on pm if you want

[multimeter]

Re: Neon C3298DVB stuck in standby

yeah no worries,its on my computer,il dig for it,and send it on pm if you want

tom send me yr email addy,found it

[sienoki]

Re: Neon C3298DVB stuck in standby

just use a watch flat screwdriver,short the pins together ,then power on the tv, pull the screwdriver out ,i think ive got the BIN file for cello tvs somewhere if you get a programmer

My camera is playing up & i cant take a decent pic of the chip..im not sure which is pin 5/6 sorry..& tom if i muck this up could i get a reprogramed 1 off you plz..thx

[multimeter]

Re: Neon C3298DVB stuck in standby

My camera is playing up & i cant take a decent pic of the chip..im not sure which is pin 5/6 sorry..& tom if i muck this up could i get a reprogramed 1 off you plz..thx

on the eeprom chip you will see a hollow dot on it,count the pins around anti clockwise until you get to pins 5 and 6 (where the dot is thats pin 1)

[sienoki]

Re: Neon C3298DVB stuck in standby

on the eeprom chip you will see a hollow dot on it,count the pins around anti clockwise until you get to pins 5 and 6 (where the dot is thats pin 1)

Thx multimeter..located the 2 pins put small flat srewdriver on both & switched on at switch at the side waited 2secs & still same..is this a matter of trying longer or this cant be done..thx

[multimeter]

Re: Neon C3298DVB stuck in standby

Thx multimeter..located the 2 pins put small flat srewdriver on both & switched on at switch at the side waited 2secs & still same..is this a matter of trying longer or this cant be done..thx

no,you done it right,on these eeproms there storage is very weak,any little power outage/surge will corrupt the eeprom,it will proberly be a case of re/writing the eeprom,you can get the blank 24c/25c winbond eeproms fairly easily,they normally have SIG written on there part number.

[multimeter]

Re: Neon C3298DVB stuck in standby

Thx multimeter..located the 2 pins put small flat srewdriver on both & switched on at switch at the side waited 2secs & still same..is this a matter of trying longer or this cant be done..thx

and one thing,some watch screwdrivers have a black coating on them,make sure that you use one with a clean bare metal blade or it wont make the correct contact with pins 5/6

[sienoki]

Re: Neon C3298DVB stuck in standby

no,you done it right,on these eeproms there storage is very weak,any little power outage/surge will corrupt the eeprom,it will proberly be a case of re/writing the eeprom,you can get the blank 24c/25c winbond eeproms fairly easily,they normally have SIG written on there part number.

Thx fella thought 2secs was enough after doing a little research..im hoping maybe on the remote there is service menu to bring out of standby..the pioneer i bought was done that way but im having no joy finding the sequence

[sienoki]

Re: Neon C3298DVB stuck in standby

I have a little board I made up for programming EEPROMs (uses a PICkit 2) - so if you need a programmed EEPROM (SMD or through hole), let me know. Multimeter, do mind sending me that .BIN; I could upload it?

When you going 2 uni fella?..where will i get 1 of these chips from?..& could you program it 4 me..thx

[multimeter]

Re: Neon C3298DVB stuck in standby

Thx fella thought 2secs was enough after doing a little research..im hoping maybe on the remote there is service menu to bring out of standby..the pioneer i bought was done that way but im having no joy finding the sequence

not sure on the service menu there can be lots of different codes and orders that have to be enterd.

im sure there is a service code but i dont know that one sorry,someone may pick up on this thread and chime in hopefully.

[multimeter]

Re: Neon C3298DVB stuck in standby

When you going 2 uni fella?..where will i get 1 of these chips from?..& could you program it 4 me..thx

http://www.ebay.co.uk/sch/i.html?_tr...2VSIG&_sacat=0

[tom66]

Re: Neon C3298DVB stuck in standby

If it's one of those, I can't program it, sorry. That's a flash chip - not an EEPROM.

[sienoki]

Re: Neon C3298DVB stuck in standby

http://www.ebay.co.uk/sch/i.html?_tr...2VSIG&_sacat=0

Thx 4 link mucka..didnt think it be that simple 2 look on ebay..doh..sun stroke i think..im gonna google my head off & see if theres a sequence out there..maybe if i get in contact with cello they may provide but i doubt it..thx for help guys

[sienoki]

Re: Neon C3298DVB stuck in standby

If it's one of those, I can't program it, sorry. That's a flash chip - not an EEPROM.

How much would i be looking at from a shop 2 do it?..ive 20quid in it so far

[tom66]

Re: Neon C3298DVB stuck in standby

How much would i be looking at from a shop 2 do it?..ive 20quid in it so far

I have no idea where you could get that done, sorry.