Author Topic: EEVblog #411 - MiniPro TL866 Universal Programmer Review  (Read 1056393 times)

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Offline ebastler

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1950 on: January 21, 2021, 10:24:21 am »
I would start with trying another computer, and another USB cable.
 
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Online Shock

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« Last Edit: January 21, 2021, 11:51:43 am by Shock »
Soldering/Rework: Pace ADS200, Pace MBT350
Multimeters: Fluke 87V, 117, 27/FM       >>> WANTED STUFF <<<
Oszilloskopen: Lecroy 9314, Phillips PM3065, Tektronix 2215a, 314
 
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Offline frischky

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1952 on: January 21, 2021, 08:31:36 pm »
Thanks for the suggestions.

No dice on the different USB cable or computer, same Pin 4 GND error.

I'll wait until the seller replies and see what they want to do.  Sending it back to China would probably be half the value of it.  It is probably a simple repair, but I get antsy when desoldering gets involved, especially on boards with lots of SMD. 
 

Offline galaxy76

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1953 on: January 23, 2021, 09:27:02 am »
hi, how long does it usually take to erase an eprom (m27C4001)?  I bought a gray Chinese eraser like this one in the picture.  I have some m27512 eproms original that clear in 6 minutes.  instead the m27C4001 original are canceled in 40 minutes.  it's normal?  thanks
 

Offline ebastler

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1954 on: January 23, 2021, 12:38:42 pm »
@galaxy76 --
What is wrong with the answer below, which you received earlier in resonse to pretty much the same question?
Also, could you please delete two of the three redundant posts you just made? [Done, thanks!]

i bought a chinese eprom erase 4w 254nm (grey) .  I have to delete some Chinese eprom m27C4001.  how many minutes does it take?  thanks
For a good eprom, 10 to 15 minutes should about do it. I've used several thousand M27C801 Chinese eproms and on the rare occasion I've had to erase one they take 1-2 hours. They are branded ST but scrape off the black paint and they have some Chinese writing underneath.
« Last Edit: January 23, 2021, 12:50:16 pm by ebastler »
 

Offline galaxy76

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1955 on: January 23, 2021, 12:45:28 pm »
this time they are new and original m27C4001.
« Last Edit: January 23, 2021, 12:52:22 pm by galaxy76 »
 

Offline Bud

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1956 on: January 25, 2021, 08:55:21 pm »
From ST datasheet:

Quote
The recommended erasure procedure for the M27C4001 is exposure to short wave ultraviolet light which has wavelength of 2537 Å. The integrated dose (i.e. UV intensity x exposure time) for erasure should be a minimum of 15 W-sec/cm2. The erasure time with this dosage is approximately 15 to 20 minutes using an ultraviolet lamp with 12000 µW/cm2 power rating. The M27C4001 should be placed within 2.5 cm (1 inch) of the lamp tubes during the erasure

You can compare the requirements such as the wavelength and dosage against the ones for other UV Eproms.
Facebook-free life and Rigol-free shack.
 

Offline bsgd

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1957 on: March 12, 2021, 03:40:30 am »
Hello,

Sorry to revive a somehow old thread, but does any of you know if the TL866ii Plus can reliably test 6116 Ram ICs? I've heard people saying they do test them fine and others saying it doesnt.

I would only buy it for this purpose and thats why Id like to hear from someone who actually owns it if its a good tool for this purpose.
 

Offline gmc

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1958 on: March 12, 2021, 07:59:46 am »
The 6116 is in the chip database for the TL866+ but have never tested these chips before.
I've tested loads of 62256 and those work, so dont see any reason why the 6116 would not work.
 
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Offline firewalker

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1959 on: March 12, 2021, 10:39:36 am »
The problem is that TL866 will test chips in relative low speeds. I have tested several ICs with a pass result that would not work in the circuit, due to higher speed clocks.

Alexander.
Become a realist, stay a dreamer.

 
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Offline bsgd

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1960 on: March 12, 2021, 12:15:09 pm »
The problem is that TL866 will test chips in relative low speeds. I have tested several ICs with a pass result that would not work in the circuit, due to higher speed clocks.

Alexander.

The thing is, Im trying to repair an HP test equipment and this is the first time Im actually messing with these 'old' digital circuits. How does one actually confirm an IC is bad (like in your case) with such defects? I mean is it even common for for ICs to fail this way, working only at lower speeds?

I need to test a few 6116 ICs and that why I was interested in getting the TL866, so it would be great if someone could confirm if its suitable as a 6116 tester, if someone here ever used it to test them. I dont like the repair approach of just replacing everything as we dont learn much from doing that, so Id rather test and find the issue than just replace all ICs... and I love test gear as everyone around here so a GOOD IC tester would be awesome to have.

 

Offline oPossum

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1961 on: March 12, 2021, 05:54:20 pm »
The TL866 and other affordable chip testers will be able to determine if a chips is definitely not working but can not determine if they are fully functional (meet all specifications). It is just not practical to fully simulate working conditions so they just test for basic functionality. So if a chip tests bad then it is very likely bad. If it tests good then it is still suspect.
 

Online Shock

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1962 on: March 12, 2021, 06:47:43 pm »
These are primarily universal programmers and as mentioned the software works more like a basic pass/fail so it's a check not a test. Since this thread is for the TL866A/CS and not IC/RAM testers please start a new thread in the test equipment forum if you want to discuss testers further. But you are looking for something like this, not the TL866:

https://8bit-museum.de/sonstiges/hardware-projekte/hardware-projekte-chip-tester-english/

Soldering/Rework: Pace ADS200, Pace MBT350
Multimeters: Fluke 87V, 117, 27/FM       >>> WANTED STUFF <<<
Oszilloskopen: Lecroy 9314, Phillips PM3065, Tektronix 2215a, 314
 

Offline grantb5

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1963 on: March 12, 2021, 07:07:46 pm »
If you make a new topic, please post a link here. I am also interesting in SRAM testing. Speed is not the only issue in my case, these parts, like the 6116LP-3 and similar, were used in old music synthesizers for battery-backed settings. I have a couple of tubes of "not sure" SRAM parts.
 

Offline andromeda92

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Re: EEVblog #411 - MiniPro TL866 Universal Programmer Review
« Reply #1964 on: April 15, 2021, 11:46:17 am »
Hi,
How to disable SDP on AT28C256 with programmer TL866II-Plus ?
Thanks for your help.
 


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