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Jarnutt
USA
13 Posts |
 Posted - 03/09/2013 : 15:18:01
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Ive been using this burner for about 6 months now, and since it was new it has NEVER worked on my Vista 64bit SP2 based HP desktop, and it works MOST of the time on BOTH of my XP 32bit SP3 Laptops.
The problem is, I burn mostly M27c801's and M27c4001's, and I cant blank check, burn, and then verify 2 chips consecutively without the burner and software freezing on the second chip. After each chip, I must close USBPrg, unplug and then plug back in the Gq-4X, and re open the software to burn another.
When the burner/software lock up, the VCC or VPP light (depending on it its reading or writing when it freezes) stays on solid, hitting cancel on the progress box does nothing, it just closes the box, but the software wont respond to anything, and when I unplug the programmer, everything unfreezes and it gives me the dummy message to plug it back in, but wont re-initialize OR recognize the Programmer unless I restart the software.
On my desktop, it freezes up during the burning process at random percentages of progress, and never has completed one chip successfully, even at snail slow speed.
Im not using a hub, Ive done these steps on over 40 EPROMS so far, so its not a bad chip, they ALL have written eventually, Ive tried different USB cables, Im not using a HUB and its always on the back USB plugs on the computer, tried ALL the USB outlets, Ive tried BOTH 5.03b software and the most recent (6.13 i think?) and I have the 9v AC adapter. Nothing seems to help it work consistantly.
The reason Im posting now after all these months, is that ive recently took a stab at 29F032D TSOP chips, and they read, ID, and write, but they fail verification EVERY TIME on the same address, and when I read it back off the chip, its partially full of errors, Ive tried 3 different chips, all the same result. But thats for another topic. |
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| Reply #1
ZLM
2945 Posts |
Posted - 03/12/2013 : 11:17:17
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Check the ZIF module to see if something wrong.
Open the case, remove the top module ADP-089 frm main board. And check resistance on each two pins on ZIF. The resistance should be infinity since they are open. Use 20M range on your multimeter.
Clean up the solder joing and ZIF if the resistance is not infinity.
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| Reply #2
Jarnutt
USA
13 Posts |
Posted - 03/12/2013 : 19:20:21
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| Not finding anything wrong, everything ohms out correctly as far as I can tell. You mean just jump from pin to the closest pin to make sure nothing is shorting right? Because no 2 slots of the ziff have continuity to each other, which I would imagine is normal. |
Edited by - Jarnutt on 03/12/2013 19:31:52 |
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| Reply #3
ZLM
2945 Posts |
Posted - 03/12/2013 : 20:12:04
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Between any two pins, the ohm reading should be infinity. Use 20M range.
If you find any two pins have continuity(or not a infinity resistance )to each other, then it is short circuit. It must be fixed.
Confirm again your No. 2 slots have a short and then fix it. |
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| Reply #4
Jarnutt
USA
13 Posts |
Posted - 03/12/2013 : 20:19:33
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| I didn't mean NUMBER 2, I mean no combination of any 2 pins have continuity to each other |
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GQ-4X freezes and has to be unplugged to reset
