Quoted from Robotworkshop:

Does anyone happen to know the approximate note of each of the chimes used in the SS Bally games? In particular the 4 chimes used in Black Jack. I'm working on a patch that needs to add a couple new tunes and how the chimes match up with a note would help.
I have more details on the thread about Black Jack:
https://pinside.com/pinball/forum/topic/black-jack-1977-solid-state-club
Robert

Quoted from Robotworkshop:

I had a friend stop by that has a music background and we found a sequence that sounds good. With that I was able to finish making the changes to the Black Jack code that I wanted. Added a couple new tunes and now if the dealer wins you lose points. Makes the game a lot more interesting!

Quoted from Quench:

A year or two ago I tried to get ADT to make me some for private use and I tried to convince them there is a market for these. But they didn't seem overly interested. I sent them the attached slideshow. MOQ per color/type was 1000 pieces but they wouldn't make me any samples to ensure they were going to get it right first time. In the end I just modified some myself. Problem is some LEDs are full of glue in the bayonet and aren't possible to pull apart without damaging them.

Quoted from Robotworkshop:

So for leds all you need to do is add a 470 ohm resistor across the leads of each socket where an LED will be installed? Is that the same for both the Bally and early Stern?
If so that is a nice easy to install upgrade.

Quoted from Thunfisch:

Did you already resolder the connector pins?

Quoted from BJM-Maxx:

Is your sound quality fine, just low? If so it implies the amplifier circuit is the issue. Are all board voltages what they should be?

Quoted from mrm_4:

Yeah sounds fine, its just low. I'll double check the voltages. The amp looks to be a replacement from before I got the game. Im going to double check the solder points anywhere a trace leads to and from the amp.
Thanks

Quoted from mrm_4:

Update on voltages
TP1 = 15.4 DC 33 AC (schematic says 11.9DC 0.1 AC)
TP2 = 4.9 DC = OK
TP3 = 0.11 DC 0.01 AC (not sure what it should be, looks like it’s ground but when I do a continuity test on anything grounded the meter makes a distorted pulsating sound, only on TP3 no where else in the game)
TP4 = bounces between 0.19 to 0.33 DC (schematics say 2.5 DC with sound I tested during game)
TP5 = 2.5 DC = OK
TP6 = .33 AC = OK
Also during attract I get a high frequency sound when the high score is displayed
Just a quick EEEEEP ———— EEEEEP ———— EEEEEP as the displays change from last game to high score.

Quoted from mrm_4:

Audio question for the gang:
After reassembling my xenon I seemed to have lost volume. It’s about half as loud as before.
I thought it was because of the replacement speakers so I swapped the originals.
I tried adjusting the 1k pot on the board to see if I might have lowered the volume there by accident but all that did is made things sound worse.
I changed the volume pot on the board and now that adjusts smoothly but there’s no improvement. The pot in the coin door is new as well.
Where should I start on trouble shooting low volume? Any thing I should measure or consider replacing?

Quoted from mrm_4:

Update on voltages
TP1 = 15.4 DC 33 AC (schematic says 11.9DC 0.1 AC)
TP2 = 4.9 DC = OK
TP3 = 0.11 DC 0.01 AC (not sure what it should be, looks like it’s ground but when I do a continuity test on anything grounded the meter makes a distorted pulsating sound, only on TP3 no where else in the game)
TP4 = bounces between 0.19 to 0.33 DC (schematics say 2.5 DC with sound I tested during game)
TP5 = 2.5 DC = OK
TP6 = .33 AC = OK
Also during attract I get a high frequency sound when the high score is displayed
Just a quick EEEEEP ———— EEEEEP ———— EEEEEP as the displays change from last game to high score.

Quoted from mrm_4:

Also when I removed the vocal board my ground tests normal and I get the correct voltage on TP4.
TP1 is still testing high.
Plug the vocal board back in and I get wonky reads and a funky ground.
I’m ordering the cap kits for both boards for good measure but it seems like there’s a grounding issue on the vocal board. Any thoughts?

Quoted from JethroP:

I assume you have already reflowed the solder on the board pin connectors? Then install the caps you have ordered. Do you have an oscilloscope?

Quoted from Zitt:

I think it's one of those items of little interest.
How many would a person sell? I mean my Bally Star trek probably has like a dozen and a half if I wanted to replace them all. Granted most early solid state ballys probably used them but how many would you really sell in a given year.
I suspect these were die punched or something; again - the actual manufacturing may be lost to time.
I have considered trying to repro them; but honestly, just not sure how they were made - what tool was used to install them; and how well they'd actually sell long term.

Quoted from Alan_L:

Has anyone assembled a Wolffpac display?
What do you think?

Quoted from Thunfisch:

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