MCUmall EPROM BIOS Chip Burner Forum
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 Problems to program 27C512 with GQ-4X		  Forum Locked
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Becoacamba

Venezuela
14 Posts
Posted - 06/20/2009 :  09:12:42  Show Profile
Hi Friends

I'm trying to rewrite an EPROM M27C512 original ecu marrelli an IAQ 1G7SS.77 and I have previously erased with UV light for 20 min. Here attached an image with the error that gives me the GQ-4X. That may be happening here. Thanks for your help.

Image Insert:

172.93 KB
Reply #1

Becoacamba

Venezuela
14 Posts
Posted - 06/20/2009 :  13:28:56  Show Profile
I have too a similar problem with eprom 27c256 of chevrolet corsa 1.6 8v. I could do it once, but now I clear it with UV light for 20 min and now will not let me write give me this error.

Image Insert:

179.7 KB

Nota: the eeprom SST27SF512 is compatible with the 27c512?

Thanks
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Reply #2

ZLM

2945 Posts
Posted - 06/21/2009 :  06:41:45  Show Profile
It seems the chip is not erased completely.

Do a blank check to confirm the chip is blank.

Yes. The SST27SF512 is read compatible with 27C512.
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Reply #3

Becoacamba

Venezuela
14 Posts
Posted - 09/21/2009 :  13:13:59  Show Profile
ok thks ready.
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Reply #4

kaleteam

Reunion Island
22 Posts
Posted - 02/02/2010 :  09:48:51  Show Profile
quote:
Originally posted by Becoacamba

ok thks ready.

By what Eprom can replace the M27C512 PLCC32 (OTP) please.
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Reply #5

angmar

Argentina
2 Posts
Posted - 03/13/2011 :  16:36:41  Show Profile
Have little power uv light , or little exposition time.
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