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airtite
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« on: August 27, 2012, 12:27:45 AM »
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Hi
Anyone know if I am able too do this without desoldering the chip? If not please could someone point out which chip?
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icezero
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« Reply #1 on: August 27, 2012, 02:38:16 AM »
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what is written on the soic 8 chips you can switching off . Can you make better pictures??
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Rick
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« Reply #2 on: August 27, 2012, 02:41:39 AM »
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What is it out of?
Rick
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airtite
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« Reply #3 on: August 27, 2012, 02:56:54 AM »
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I will try take better pics, its out of an 1.8 audi a4 I think a 1999 or older
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icezero
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« Reply #4 on: August 27, 2012, 02:58:46 AM »
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the car is older you its a me 3.2 year 96 i think its the soic 8 chip on the front 24c02
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icezero
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« Reply #5 on: August 27, 2012, 03:00:21 AM »
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over the 27c010
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airtite
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« Reply #6 on: September 20, 2012, 12:31:29 AM »
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ok finally received my soic8 test clip so I can help my buddy.
Still not 100% sure on the location of the soic 8 chip on the board.
The only 2 soic 8 chips I see have the following numbers on them
top of the board
B58085
ST9527
bottom
B 55AN
B58283
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airtite
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« Reply #7 on: September 20, 2012, 12:39:10 AM »
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my gq-4x programmer is also here and I havent used one before. With my soic 8 test clip I assume I connect the clip to the chip and the connect pin 1 to pin 1 on the block connector, pin 2 etc etc but on the gq-4x programmer what is pin 1?
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airtite
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« Reply #8 on: September 20, 2012, 10:22:33 PM »
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my gq-4x programmer is also here and I havent used one before. With my soic 8 test clip I assume I connect the clip to the chip and the connect pin 1 to pin 1 on the block connector, pin 2 etc etc but on the gq-4x programmer what is pin 1?
never mind RTFM  |
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airtite
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« Reply #9 on: September 20, 2012, 10:23:52 PM »
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still need some help figuring out which soic 8 chip I need to read though ^^^^
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airtite
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« Reply #10 on: September 21, 2012, 02:20:57 AM »
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ok tried to read both chips, the bottom chip wouldnt do anything the vcc light comes on the progarmmer and then nothing. The top chip I managed to get a read from it but the 252k file is completely FFed out, tried to read it again and now I am just getting the same as the bottom chip ie VCC light comes on and then nothing.... any help please guys?
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prj
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« Reply #11 on: September 21, 2012, 04:19:18 AM »
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Why on earth would you have a 252k readout?
You are probably selecting the wrong chip type. These chips are all smaller than 8k.
Let's hope the chips are not damaged/erased now.
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« Last Edit: September 21, 2012, 06:30:49 AM by prj »
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airtite
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« Reply #12 on: September 21, 2012, 05:16:15 AM »
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I selected the 24c02 device, sorry its not 252k the size of the FFed read was 4.0K
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airtite
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« Reply #13 on: September 21, 2012, 05:24:28 AM »
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surely just trying to read the file wouldnt have damaged/erased the chip?
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prj
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« Reply #14 on: September 21, 2012, 06:29:20 AM »
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surely just trying to read the file wouldnt have damaged/erased the chip?
And you are sure your chip is 24c02? If you have the chip wired incorrectly or select the wrong chip, you can easily reverse polarity on VCC and VSS and fry it. |
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« Last Edit: September 21, 2012, 06:31:11 AM by prj »
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