(Topic ID: 243767)

Bally 6 digit display missing the 10th digit


By Brewchap

4 months ago



Topic Stats

  • 13 posts
  • 4 Pinsiders participating
  • Latest reply 4 months ago by PinballManiac40
  • No one calls this topic a favorite

You

Linked Games

Topic Gallery

There have been 2 images uploaded to this topic. (View topic image gallery).

Bally_AS-2518-21_Display_6-Digits_layout_marked (resized).jpg
Bally_AS-2518-21_Display_6-Digits (resized).jpg

#1 4 months ago

Using PinWiki I changed out Q2 and Q8 supporting transistors along with the IC as I had some handy laying around. None of this made a difference. I even moved the display to another spot and the problem moved with the display. This should be cut and dry but I must be missing something. Any ideas?

-1
#2 4 months ago

Out gassed, it's not coming back

#3 4 months ago

Usually if you're missing only a digit, check the 100k resistor for that one. Likely it will be out of spec, as in much higher than the other 100k resistors on the board.

#4 4 months ago
Quoted from PinballManiac40:

Usually if you're missing only a digit, check the 100k resistor for that one.

Which one?

#5 4 months ago

I got enuff for them all

#6 4 months ago

They are close to the glass display. I don't have a drawing with me. Just use your ohmmeter to test all the resistors in that row. You can compare the same resistor colors to the other ones.

#7 4 months ago

That was it!!! Your the best PinballManiac40!

#8 4 months ago

Which resistor location was it for this 10th digit?

#9 4 months ago

Truthfully, I don't know. I had the resistors, so I just replaced them all for a few cents out of pocket.

#10 4 months ago

You would be looking for R3.
The 100K resistors are known to fail or go out of spec.
Always check R1, R3, R5, R7, R9 and R11 when digits are missing.

Bally_AS-2518-21_Display_6-Digits (resized).jpg
#11 4 months ago

The 6 resistors are placed in two groups of 3 (in the red circles).

Bally_AS-2518-21_Display_6-Digits_layout_marked (resized).jpg
#12 4 months ago
Quoted from CanadianPinball:

Out gassed, it's not coming back

If there is still light in the other digits, the glass is still good.

#13 4 months ago
Quoted from Inkochnito:

You would be looking for R3.
The 100K resistors are known to fail or go out of spec.
Always check R1, R3, R5, R7, R9 and R11 when digits are missing.[quoted image]

Definitely the info I was hoping to get added for anyone else looking for the solution.

Post 7 was reported as problem solved.

Promoted items from the Pinside Marketplace
From: $ 18.00
Apparel - Men
Pinside Shop
$ 7.95
Various Novelties
Pinball Wheezer
$ 6.00
$ 80.00
Playfield - Toys/Add-ons
Latenight Weeknight Mods
$ 69.95
Cabinet - Shooter Rods
Super Skill Shot Shop
From: $ 119.99
Lighting - Backbox
Rock Custom Pinball
$ 7,499.00
Pinball Machine
Great American Pinball
From: $ 9.99
$ 75.95
Cabinet - Shooter Rods
Super Skill Shot Shop
$ 29.95
Playfield - Toys/Add-ons
ULEKstore
$ 69.95
Cabinet - Shooter Rods
Super Skill Shot Shop
From: $ 40.00
Playfield - Plastics
Mod Magic!
$ 48.00
Cabinet - Other
ModFather Pinball Mods
$ 146.66
Playfield - Toys/Add-ons
Medisinyl Mods
$ 7,500.00
Pinball Machine
Great American Pinball
$ 76.95
Cabinet - Shooter Rods
Super Skill Shot Shop
From: $ 5,999.00
Pinball Machine
Monster Bash Remake Out of stock
Flip N Out Pinball
£ 39.00
Lighting - Led
PinballToys
$ 35.00
Cabinet - Decals
Pinball Haus
$ 175.00
Lighting - Interactive
Professor Pinball
€ 27.00
Cabinet - Other
YOYOKOPTER MODS
$ 35.99
Lighting - Interactive
Lee's Parts
$ 156.00
Playfield - Toys/Add-ons
ModFather Pinball Mods

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside