(Topic ID: 275090)

[Black Knight] LED Display showing blank 10's Digit.

By flipkidflip

3 years ago



Topic Stats

You

Linked Games

Topic Gallery

View topic image gallery

bk_led_broken (resized).jpg
bk_slave_display (resized).jpg
#1 3 years ago

Hi, all. I'm having an issue with a blank 10's digit on an LED display on my Black Knight. After swapping the positions of the displays around, I observed that the issue follows the display, not the player. So now I'm trying to pinpoint the issue on the display itself.

I have continuity between the solder joints of 15 - 8 and 15 - 10, as the schematic specifies for the 10's Digit Select and additionally, continuity between the pins on either side of those solder points.

Any suggestions on what else to test to diagnose the problem?

Thanks!

bk_slave_display (resized).jpgbk_slave_display (resized).jpgbk_led_broken (resized).jpgbk_led_broken (resized).jpg
#2 3 years ago

It might be the joint between the metal lead that is soldered to the board and the internal masking for that digit (the grey like that partially circles the digit. Not sure if there is anything you can do to repair that joint as it is under the glass.

#3 3 years ago

ya bad glass....maybe you can find a used display for sale here or maybe ebay....

#4 3 years ago

Darn, I was afraid of that. Thanks for your input, though.

#5 3 years ago

If you haven't tried it yet I suppose you could reflow the solder on the two spots on the '10' digit traces closest to the glass and maybe add a little more solder as you do it just to see if the solder connection there has simply cracked or was weak to begin with, as a last resort.

Promoted items from Pinside Marketplace and Pinside Shops!
$ 53.95
Eproms
Pinballrom
 
$ 17.00
Playfield - Decals
Metal-Mods
 
2,500 (OBO)
Machine - For Sale
Vista, CA
$ 115.00
Cabinet - Shooter Rods
Super Skill Shot Shop
 
From: $ 90.00
Tools
Pincoder Store
 
$ 959.00
Flipper Parts
Mircoplayfields
 
$ 95.00
Cabinet - Sound/Speakers
Pinball Mod Co.
 
$ 12.50
Lighting - Led
RoyGBev Pinball
 
From: $ 30.00
$ 15.00
Playfield - Decals
Metal-Mods
 
$ 18.95
Eproms
Pinballrom
 
From: $ 5.75
Playfield - Other
Rocket City Pinball
 
$ 160.00
Cabinet - Toppers
Sparky Pinball
 
$ 69.00
Gameroom - Decorations
Pinball Pimp
 
Wanted
Machine - Wanted
Newcastle, OK
$ 59.95
Playfield - Toys/Add-ons
Hookedonpinball.com
 
$ 1,059.00
$ 69.00
Gameroom - Decorations
Pinball Pimp
 
From: $ 26.95
Playfield - Other
Hookedonpinball.com
 
Wanted
Machine - Wanted
Westjordan, UT

Reply

Wanna join the discussion? Please sign in to reply to this topic.

Hey there! Welcome to Pinside!

Donate to Pinside

Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!


This page was printed from https://pinside.com/pinball/forum/topic/black-knight-led-display-showing-blank-10-s-digit?hl=startek2 and we tried optimising it for printing. Some page elements may have been deliberately hidden.

Scan the QR code on the left to jump to the URL this document was printed from.