STTNG Multiplier lights outs

(Topic ID: 228992)

STTNG Multiplier lights outs

By ViriiGuy

71 days ago

Topic Stats

  • 10 posts
  • 6 Pinsiders participating
  • Latest reply 70 days ago by ViriiGuy
  • Topic is favorited by 1 Pinsider


Linked Games

Topic Gallery

There have been 3 images uploaded to this topic. (View topic image gallery).

pasted_image (resized).png
pasted_image (resized).png
pasted_image (resized).png

#1 71 days ago

I have been searching for a couple days with no luck. All of the lights on the multiplier light board are out. I have checked the bulbs and they are good. Other than those lights, all of my other lights are working as they should.

Can anyone point me in the right direction of where to start looking?


#2 71 days ago

Pull the PCB light board out and look at the header on the board where the connector plugs into it. I'll bet the common pin solder joint is cracked. Reflow the solder to all the header pins and you'll be good to go.

#3 71 days ago

Thank you. I will check that.

#4 71 days ago

Sometimes you can get really lucky and if there is an IDC connection to that group of bulbs, you'll find that it has simply worked its way too loose to make solid contact.

#5 71 days ago

The headers looked fine, but I reflowed them to be safe. No change. Any idea which pins should be showing what voltage?

#6 71 days ago

Reflow and both half circle where each socket make contact.
Next is to trace the wires to where they go/come to see if there is some cut.
If no cut wires then you must check their transistors/ICs.
Had similar problem with T2 where 4 lights didn't show.Their transistors/ICs on Power board were fine.Finally it was IC on CPU board that was bad.

#7 70 days ago
Quoted from ViriiGuy:

Other than those lights, all of my other lights are working as they should.

Okay, I'm going to assume this is true and your 3 lane lamps at the top of the machine are working.

I personally like to check the simple stuff first...the Yellow-Orange column wire feeds thru the 3 lanes board connector, the lamp harness will connect from the PDB to the lanes first, then proceed down to the Multiplier board, it's a free check to take a look at that, or just simply measure continuity from J137-3 to the Yellow-Orange wire on the lamp board.
pasted_image (resized).png

Edit: Lamp columns could be on either on J137 or J138 and the manual has conflicting information on reality it shouldnt matter which one its connect to as they are electrically identical, this actually makes it easier to check as you can use the pins of the unused connector as test points
pasted_image (resized).png
pasted_image (resized).png

If you cant fix it with this information, my standard repair fee is $95/hr plus parts; the clock starts when I get in my car and ends when I get back home

#8 70 days ago

The last post should be helpful. Good info. The yellow/orange wire daisy chains to all 3 top lanes and to the multiplier board. If one or more of the top lanes light, most likely a broken wire at one of those 3 switches that feeds the multiplier board. Yellow/orange is the only color of wire to be looking at to find the problem.

#9 70 days ago

Yes, my three top lanes light. Thank you very much. I will do some probing this morning with the multi-meter and see what I find. Thank you very much.

#10 70 days ago

Thank you very much!!!
It is a broken wire. I made a jumper wire with alligator clips and now they all work!
So I just have to trace back and find where the wire is broken and replace it.

You all rock!

Promoted items from the Pinside Marketplace
$ 129.00
Lighting - Led
$ 26.99
Lighting - Interactive
Lee's Parts
$ 20.00
Yorktown Parts and Equip
From: $ 29.00
KAHR.US Circuits
$ 999.00
Pinball Machine
From: $ 16.95
$ 40.00
Lighting - Other
Rock Custom Pinball
Machine - For Sale
Milford, CT
$ 29.99
Cabinet - Sound/Speakers
Lighted Pinball Mods
$ 63.00
Lighting - Under Cabinet
$ 38.00
Cabinet - Sound/Speakers
ModFather Pinball Mods
$ 8.50
Lighting - Led
Bright Lights Pinball
From: $ 185.00
Gameroom - Decorations
Pinball Photos
$ 15.00
$ 48.00
Cabinet - Other
ModFather Pinball Mods
$ 9.99
From: $ 185.00
Gameroom - Decorations
Pinball Photos
$ 29.99
Cabinet - Sound/Speakers
Lighted Pinball Mods
From: $ 99.99
Cabinet - Other
Lighted Pinball Mods
From: $ 200.00
Lighting - Interactive
Professor Pinball
$ 64.99

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