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Equipment Repairs => LCD TV forum => Topic started by: lcdnewboy on July 11, 2013,15:35:30

Title: 32ld30ub 17mb35-1 eeprom reset?
Post by: lcdnewboy on July 11, 2013,15:35:30

Hi , I have a hitachi 32LD30UB which has a a main board fault (short circuit). I have a 17mb35-1 main board from a Hitachi 32ld30ua smashed screen. Board numbers appear the same but when I use it in the faulty set it turns on the green led and then after a few seconds flashes red/green with no backlight. If I disconnect the tcon cable it will turn on with backlight and a plain black screen. I cannot get into the service menu to try a reset so would like to know if it is possible to rest the eeprom as I presume there is a software conflict between the screen & new main board? Any advice will be very gratefully received! Thanks in advance.

Title: Re: 32ld30ub 17mb35-1 eeprom reset?
Post by: fix2003 on July 12, 2013,03:06:11

you could remove and use the eprom of the duff board
may be easier just to do a swap

Title: Re: 32ld30ub 17mb35-1 eeprom reset?
Post by: watteau on July 12, 2013,03:22:18

Hi,
When you say the board numbers are the same, are these the
numbers on the white label. If the display types are the
same, could possibly be a problem with the control PCB, dragging down
one of the supplies.
Regards

Title: Re: 32ld30ub 17mb35-1 eeprom reset?
Post by: lcdnewboy on July 12, 2013,16:00:20

Thanks for the responses, I would like to try swapping the eeproms as I've nothing to lose. Could you tell me the location of the eeprom chip on these boards? Thanks again

Title: Re: 32ld30ub 17mb35-1 eeprom reset?
Post by: michael first on July 14, 2013,06:46:42

 Hi, on this chassis the eeprom is labelled U103(24C32).if swapping it doesn't work try U132(MX26L512) which is the flash. 

Title: Re: 32ld30ub 17mb35-1 eeprom reset?
Post by: lcdnewboy on July 15, 2013,06:59:20

Ok thanks for your help, I'll give it a go over the weekend. :dubbio: