Faulty DS1234Y ?

EPROM EEPROM SRAM NVRAM Flash chips, reading/writing hardware and software
User avatar
Posts: 50
Joined: Tue Jan 21, 2014 5:36 pm
Location: Darwin NT

Faulty DS1234Y ?

Postby v8slrtorana » Fri Aug 24, 2018 8:44 pm

I let a mate borrow my ECU to run in his cam now i have nothing.

Have i got a faulty DS1234Y ?

Image

Image

User avatar
Posts: 50
Joined: Tue Jan 21, 2014 5:36 pm
Location: Darwin NT

Re: Faulty DS1234Y ?

Postby v8slrtorana » Fri Aug 24, 2018 8:46 pm

I should add, same error a few days apart.
Tried burning with my laptop & desktop, same error.
There are no broken pins.
Burner is writing to memcals no issues.

User avatar
Posts: 4079
Joined: Mon Jan 04, 2010 10:23 am

Re: Faulty DS1234Y ?

Postby The1 » Sat Aug 25, 2018 10:52 am

id say so, does it read anything?

User avatar
Posts: 144
Joined: Tue Dec 17, 2013 1:05 am

Re: Faulty DS1234Y ?

Postby Ken » Sat Aug 25, 2018 11:50 am

I had a similar intermittent problem, found that when I mounted the chip in the GQ4x programmer, if I gave it a slight push in either sideway directions, it seemed to connect to all the slotted connections below the slotted plastic on top, seems the plastic separating the slots on the programmer was slightly overhanging the flat movable connections under the top, I eventually pulled it apart and clearanced the black slotted plastic above the slotted connections, with a dremmel using a skinny burr.
Not saying it's definitely your problem though, something to check I guess.
I kept thinking that I'd had a bunch of dying chips.

Posts: 135
Joined: Mon Dec 12, 2016 11:27 am

Re: Faulty DS1234Y ?

Postby L67PSI » Sat Aug 25, 2018 6:45 pm

Is it a genuine DS1245Y? The fakes can cause issues.

Site Admin
User avatar
Posts: 5515
Joined: Sat Feb 28, 2009 8:34 pm

Re: Faulty DS1234Y ?

Postby antus » Tue Aug 28, 2018 4:44 pm

Also some low quality usb cables cant provide enough power the GQ for it to work properly. Try another USB cable. Though you did say its writing memcals no problems, which probably requires more power than an NVRAM. Doesnt sound promising. Did he put it in a programmer upside down? Ive seen that do damage when the power goes to the wrong pins.
Have you read the FAQ? For lots of information and links to significant threads see here: viewtopic.php?f=7&t=1396

Posts: 2374
Joined: Sun Aug 02, 2009 9:16 pm
Location: Bayside, Melbourne, Victoria

Re: Faulty DS1234Y ?

Postby VX L67 Getrag » Tue Aug 28, 2018 8:54 pm

Doesn't the no.1 pin need to be closest to the lever in the GQ4?

User avatar
Posts: 1963
Joined: Fri Mar 14, 2014 8:37 pm
Location: Bacchus Marsh, Vic

Re: Faulty DS1234Y ?

Postby Biggvl » Tue Aug 28, 2018 8:58 pm

It's loaded correctly
According to chemistry, alcohol is a solution...

Return to Chip/Memcal Reading/Writing

Who is online

Users browsing this forum: No registered users and 3 guests