(Topic ID: 100896)

TAF Flasher Transistor Question


By rogerdodger

5 years ago



Topic Stats

  • 3 posts
  • 3 Pinsiders participating
  • Latest reply 5 years ago by terryb
  • Topic is favorited by 1 Pinsider

You

Linked Games

#1 5 years ago

Hi Guys:

The upper right ramp flasher on my TAF does not work. I know the bulb, socket, wiring and connectors are good.

The only other thing I can think of is the transistor that drives it, Q42.

However, according to the book, this transistor also drives the telephone flasher, which is working.

So, my question is, can the transistor have partially failed so that it only drives one of the two flashers, instead of both of them or do transistors fail completely?

I'm completely out of ideas, so all help appreciated.

Roger

#2 5 years ago

Check the wire again .

#3 5 years ago
Quoted from rogerdodger:

So, my question is, can the transistor have partially failed so that it only drives one of the two flashers, instead of both of them or do transistors fail completely?

Transistors can fail under load, but then both flashers would go out, not just one. Get your meter out and check continuity between the common wires on the two flashers. One of the two is most likely broken.

Promoted items from the Pinside Marketplace
$ 47.00
$ 27.99
Playfield - Protection
Lee's Parts
From: $ 179.99
Lighting - Led
Comet Pinball
Wanted
Machine - Wanted
Milford, CT
$ 10.00
Cabinet - Sound/Speakers
Gweem's Mods
$ 8.50
Lighting - Led
Pinball Haus
From: $ 5.00
Cabinet - Other
Rock Custom Pinball
From: $ 149.00
Playfield - Toys/Add-ons
Sparky Pinball
$ 29.99
Eproms
Matt's Basement Arcade
5,750
Machine - For Sale
Zamora, CL
Wanted
Machine - Wanted
West Chicago, IL
From: $ 11.95
Playfield - Toys/Add-ons
ULEKstore
$ 65.00
From: € 0.39
Rubber/Silicone
Scandinavian Pinball
$ 369.00
Cabinet - Decals
Mircoplayfields
$ 14.99
Electronics
PinballElectronics.com
From: $ 20.00
Cabinet - Other
Rock Custom Pinball
$ 22.00
Electronics
Yorktown Parts and Equip
$ 21.00
Playfield - Toys/Add-ons
Lermods
From: $ 19.50
$ 20.00
Electronics
Yorktown Parts and Equip
$ 279.95
Lighting - Led
Pin Stadium Pinball LEDs
7,499 (Firm)
Machine - For Sale
Corona, CA
$ 109.99
Hey modders!
Your shop name here

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