yeah I am in for this! I would like multiple color options on the LED if possible.

I'd be willing to coordinate a group by in norcal to help cut fees and shipping costs

I'm down for 4x 7 and 1x 6 all in white with blue filters (if you sell filters too). Should look awesome in Xenon

I personally would love a sale on the bally bench display. It can be difficult to use the switch tester in the cab when you can't see the displays!

How about a rockin deal for all the kits in a category?

seriously looking forward to these.

Any word?

yes but LED displays remove the need for a HV section and come in matching colors.

So while we're waiting for these I think it would be cool to have a technical discussion about preparing old displays for upgrade when the glass doesn't work.

Will it be safe to troubleshoot a board with the leds attached or can the decoder be tested on the bench?

Any ideas?

ok good info. I guess it would be easy to test the resistors and transistors on the bench and then I only have the decoder to worry about.

I am sure I have one. Let me dig through the pile

DA300 if you like I can priority it to you

IMAG1617_(resized).jpgIMAG1618_(resized).jpgIMAG1619_(resized).jpg

Just leave me enough 7s to do my xenon

Did the board work as-is or did you have to fix it first?

I'm in!

I'm ok with piggyback

I bought a box a non working displays a couple months ago. It was more expensive to ship 27 displays than to pay for them

Looks sharp! Those white digits are going to look great in centaur

Anybody in Northern CA and Central Valley having desoldering issues let me know. I have the hakko and can pull components for the wary

Got my kits, I'll try and throw one together tomorrow!

In the middle of converting a Bally 7 digit to LED

Here's is the donor board with the components removed.
IMAG1810 (resized).jpg

Repopulated
I need to work on getting the components to stay flat. NOTE: I moved the jumper to the bottom of the board for clearance.
IMAG1812 (resized).jpg

LED BoardIMAG1817 (resized).jpg
I used recycled leads instead of the included header pins. I missed that instruction the first time.

Final ResultsIMAG1816 (resized).jpg

Note exposure reduced for clarity. I chose the default resistors for brightness

Can you give extended instructions on enabling the commas. I'm not understanding the ones in the guide

No this makes sense although I would just do the bend in the middle leg. I'll try this on the next board

Thanks!

Can you give us an average time estimate? Did you do the full component removal?

Bench grinder?

yeah I am in for more kits. I've got 2 done and 2 7 digits stripped and ready to repopulate.

I had the chip bad on my last display and it caused all of my displays to only display 2 segments whenever the display was plugged in. This might be a good addition to the issues section.

My only suggestions on the kits so far:

1. Pic of the comma enable pads and com
2. Label the resistors on the tape
3. Clarify the nylon washer goes on top of the board (7 digit bally)
4. On Bally 7 251858 R62 is labeled in a weird place and it's possible confuse it with R61 (and it looks like it might be the label for R29). It would be cool to call this out in the doc

5. Bench testing these is a pain. Could you offer a harness to connect to a PC power supply? It would cover pins 10-20 and have an alligator clip for the digit lines. I'll see if I can make one today.

I'll tinker around with the header pins as well. That's the only other PITA I can see.

played around with setting the header pins. there is enough clearance to set them with the board mounted
2016-09-01 14.06.21-2 (resized).jpg2016-09-01 14.06.31 (resized).jpg2016-09-01 14.06.45 (resized).jpg

made a test harness and it works great

2016-09-01 15.44.28 (resized).jpg2016-09-01 15.48.07 (resized).jpg

it's hard to see but I crimped a lead into pin 12 to allow the seventh digit to be lit

agreed. much better finish. If you make another run can you make those holes slightly bigger?

I would also be interested in a williams conversion set. The display boards are dead simple. Solder on the digits and the pins. The master would need multiple variants for digits, alpha and early with integrated master

all done, they look great. Maybe should have gone a step down in brightness2016-09-02 10.29.31 (resized).jpg

They look great in person

cell phone.

ebay.com link: 4PCS Axial Diode 1 4 to 1W Resistors Capacitors lead Forming Bender tools

7.99 for a set

4 of my boards already had the glass removed. I removed the glass from the 5th for consistency

I used the foam it it helps a lot. I didn't use any of the 2N5401s. 5 displays later now I have a whole bunch of them

The fuse is only an 1/8th amp

How could playboy not have pink?

Ugh, the -21 boards love to have the pads lift.

At least 1 of them had some repairs before they decided the glass was bad.

Red looks hot in that strikes and spares! Yellow is really unique though and has wow factor as you never see yellow.

Built a set of displays for a buddies Embryon. They look great.IMG_20161111_210601 (resized).jpg

Chose to leave them white as it looks better than the blue.

That's a good call. They are bright but in person, not too bright.

All good advice. I did all 5 boards at once:
Depop
1 value resistor on all 5 boards
Etc...

I like the idea of neutral filters. Maybe an add-on to include them with the kits in addition to other filters. I'd like to add these to my Centaur

I like the blue in Centaur as it matches the Guardian inserts.

Hey here's a tech support request:

I have one segment (C) out on the 10s digit The segment driver and the decoder have been replaced. Using a test harness the same segment is out on both digits when I put 5v to pins 4&5 and 5&6. In gameplay only this digit has the segment out.

Any ideas?

Thanks

Sorry it's just a 6 digit. Looking at a resistor that tests at 150K in circuit when it should be 300K. Trying to find the schematic for this display as well.

It's a -21. I found a PDF online. Thanks for the offer

Loving the yellow digits!

My buddy did a set for stern galaxy admit looks great in blue!

Here's stern galaxy with blue filters. I think it looks awesome

IMAG2122 (resized).jpg

Who wouldn't?

Completed a 6 digit set for a friend and here's a pic of it in Bally Space Invaders. Looks great!
SpaceInvaders (resized).jpg
I am working on a 7 digit set to upgrade a Bally Viking. I plan to do it in purple! I'll post pics when it's done.

I gave him a set of neutral filters but he likes this better. I haven't been able to put the filters on centaur either. The white just POPS!

Purple and a 7 digit conversion. I am looking forward to it. I even had a little pcb printed for the conversion (based on a pinball4u design), so it's been a cool experience!

The colors are wrong and I need to finish 4 displays but I have converted my Bally Viking to 7 digits and using LED conversion displays.

Next up: purple filtersIMAG2302 (resized).jpg

I'm on my 5th conversion with the 6th in line. I could see my self buying more 6 digit kits. For 7 digit I will probably by the full kit from you.

Eric I have some 6 digit boards I'll sell you.

Thanks Wayne!

The new kits and the tester look sweet! Count me in when they are available