The HP 10529a thread

[Smitty420]

my 10529 is constantly telling lies about the chip under test, much like a couple old girlfriends it seems it can seldom tell the truth.

I usually use it to confirm my suspicions about a particular chip after I have determined it is bad with a scope, dirty i/c legs & lines stuck caused by other bad i/c's make it a somewhat limited & unreliable tool to me

I found recently using the universal board that sometimes I got false readings as chip not seated well in socket. I had to make sure clip is engaged properly, but I find it shows a pretty steady light on bad chips. A little more testing but I find it very useful and yes the oscilloscope is more useful. I think dedicated soldered chips to test boards will give more accurate tests as well, just without so much fiddling.

 

[shagster]

Hi douglasgb, Smitty420 is right about one of your gerber files as being mislabeled, the file LAYER1.GTR, should be LAYER1.GTL in the 10529CA.zip file. Tried loading it into ZofzPCB and it wouldn't work, so I went through the help file there to figure it out. I was going through this thread and I read someone saying the silkscreen was wrong with some logic ic, has that been updated in this latest upload?
Great job btw, this must of taken a serious amount of time to put together.
[h4][/h4]

 

[douglasgb]

Hi douglasgb, Smitty420 is right about one of your gerber files as being mislabeled, the file LAYER1.GTR, should be LAYER1.GTL in the 10529CA.zip file. Tried loading it into ZofzPCB and it wouldn't work, so I went through the help file there to figure it out. I was going through this thread and I read someone saying the silkscreen was wrong with some logic ic, has that been updated in this latest upload?
Great job btw, this must of taken a serious amount of time to put together.
[h4][/h4]

Thanks for the note. I didn't realize there was a naming problem or a silkscreen problem. Can you remember which IC?

 

[shagster]

Thanks for the note. I didn't realize there was a naming problem or a silkscreen problem. Can you remember which IC?

Just went back to have a look, I think DarrenF mentioned the silkscreen mistake. It is on page 13 post #244. It's a very old post so I apologise if it has been fixed in a later board revision. I'm looking at putting one of these comparators together. They go for crazy prices these days. This is a great alternative. Had a look at that French one also, that one doesn't do the 245 bidirectional ic's either, like they said it would in this thread. So I'm going to go with your's, whenever I get my ass in gear

 

[shagster]

Yea, the gerber files are same ones DarrenF used to build his comparator. It's not a big deal, it's just the silkscreem position for transistor TX553 and a 1N4148 diode are wrong. But once you know that, it's fine. You can't stick a three legged device, where a two legged one goes anyway.
Had another look at your gerber files too. Changing the GML file to GKO gets it to work on oshpark, jlcpcb, pcbway etc.

Here it is

 

[douglasgb]

Yea, the gerber files are same ones DarrenF used to build his comparator. It's not a big deal, it's just the silkscreem position for transistor TX553 and a 1N4148 diode are wrong. But once you know that, it's fine. You can't stick a three legged device, where a two legged one goes anyway.
Had another look at your gerber files too. Changing the GML file to GKO gets it to work on oshpark, jlcpcb, pcbway etc.

Here it is

Thanks! Here it is with the silkscreen fixes (except for the back-side caps... I tried but they kept showing up on the top).

 

[shagster]

Cool, thanks for that

 

[douglasgb]

PS. I have one complete 'kit' available which includes the main board and all the parts to build it. It also includes the ribbon cable but no clip. It also includes a 20 pin ZIF socket and pair of DIP switch banks (but no diodes) to build the 20 channel universal card. Finally there is an early version of the 20 channel universal card but it suffers from interference between the ZIF and the clip/comp switch and holes for the ZIF need enlargement.

I forget how much all of this costs so make an offer.

 

[2600]

Seems like a good time to interrupt this thread, but was there ever a BOM posted or does anyone have one?

 

[shagster]

I did up another one using WindDrake's great BOM list posted in this thread. It's missing a few parts on the Digikey list. So I updated it. Have a look and lmk if it's ok.

https://www.digikey.ie/short/7t5rrd4r

 

[2600]

I did up another one using WindDrake's great BOM list posted in this thread. It's missing a few parts on the Digikey list. So I updated it. Have a look and lmk if it's ok.

https://www.digikey.ie/short/7t5rrd4r

Thanks for posting this. I'll have to take a look.

 

[shagster]

Found a spdt switch on digikey (AS12CP) that should fit the universal 20 card. Tried the dpdt ones posted, but they either didn't fully fit the footprint (2mm x 2.54mm) or are not available.

360-2612-ND = Digikey Part Number.

 

[KI4SWY]

Anybody wanting a 529, there has been on sitting on ebay for about 4 weeks now, $129 BIN w/Free Shipping.

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Find many great new & used options and get the best deals for HP 5011T Logic troubleshooting kit. ***Free Shipping to USA.*** at the best online prices at eBay! Free shipping for many products!

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[thegleek]

Anybody wanting a 529, there has been on sitting on ebay for about 4 weeks now, $129 BIN w/Free Shipping.

HP 5011T Logic troubleshooting kit. ***Free Shipping to USA.*** | eBay

Find many great new & used options and get the best deals for HP 5011T Logic troubleshooting kit. ***Free Shipping to USA.*** at the best online prices at eBay! Free shipping for many products!

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I'd sell my full set for $100 shipped (which is $29 cheaper than some untrustworthy ebay seller!)

 

[DarrenA]

I bought one of these LONG LONG ago and just now was thinking I should use it. But I wanted to confirm something. If I build a test card with whatever chip, I need to cut ALL the outputs off said chip correct? So I leave power ground and the inputs connected but remove the outputs from the test chip correct.

 

[jacklick]

I bought one of these LONG LONG ago and just now was thinking I should use it. But I wanted to confirm something. If I build a test card with whatever chip, I need to cut ALL the outputs off said chip correct? So I leave power ground and the inputs connected but remove the outputs from the test chip correct.

yes that is correct.

YMMV but I did a video of making refence cards.

 

[VectorCollector]

Anybody wanting a 529, there has been on sitting on ebay for about 4 weeks now, $129 BIN w/Free Shipping.

HP 5011T Logic troubleshooting kit. ***Free Shipping to USA.*** | eBay

Find many great new & used options and get the best deals for HP 5011T Logic troubleshooting kit. ***Free Shipping to USA.*** at the best online prices at eBay! Free shipping for many products!

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Ain't that kit incomplete?
Missing the logic probe and pulser.
Bad deal. Even worse than a Gleek deal. LOL

See mine -> POST #524

The HP 10529a thread

Hi Douglas (and all), I'm a new user of this forum. I'm usually more into zx, c64 and amiga, but I love arcades and I own an arcade pcb I wanna test some of these days... a Psychic 5 bootleg. In another site I saw a repair by another user of the forum and I was very interested in your logic...

forums.arcade-museum.com

 

[Charles Kline]

I bought one of these LONG LONG ago and just now was thinking I should use it. But I wanted to confirm something. If I build a test card with whatever chip, I need to cut ALL the outputs off said chip correct? So I leave power ground and the inputs connected but remove the outputs from the test chip correct.

I need to make some cards too, I've just been using the universal card with the dip switches for each chip tested and thats not very time efficient (not that i've used it a whole lot since getting it)

 

[KI4SWY]

FYI, the lower part of the card ( the side you drill ) connects to the UUT , the Top side goes to the Logic Comparator Circuits. you drill it out from the bottom so the outputs don't go back to the UUT.

Do not cut the pins off the IC Chip.

-- as for missing logic probe/pulser.. i never used those in that kit ( and i think i don't even have them in mine 2 sets ) .. I use the pulser/probe in my Fluke 9xxx or my AIM probe for finding shorts.

 

[DarrenA]

That video actually made perfect sense to me. thank you for posting it