(Topic ID: 208514)

WPC-95 AV board, what could cause this noise

By SteveNZ

6 years ago



Topic Stats

  • 3 posts
  • 3 Pinsiders participating
  • Latest reply 6 years ago by whthrs166
  • Topic is favorited by 1 Pinsider

You

Linked Games

You're currently viewing posts by Pinsider SteveNZ.
Click here to go back to viewing the entire thread.

#1 6 years ago

https://www.dropbox.com/s/srgo0pzyeomta5p/2018_01_28_07_57_24.mp3?dl=0
happens twice on this recording at 13 seconds and at 26 seconds.

This on my SS. you can hear the loss of sound, the noise and then it seems that the audio part of the board resets, no problems with the DMD driver part.

I have check the audio voltages, I get +4.9v from U7 and -4.95v from U8.

Any ideas on where to look for the cause from here?

Promoted items from Pinside Marketplace and Pinside Shops!
$ 79.99
Cabinet - Armor And Blades
PinGraffix Pinside Shop
 
$ 89.99
Lighting - Led
Lighted Pinball Mods
 
£ 79.00
Playfield - Toys/Add-ons
PinballToys
 
9,200 (OBO)
Machine - For Sale
Weeki Wachee, FL
$ 1,059.00
Pinball Machine
Mircoplayfields
 
£ 49.00
Playfield - Other
PinballToys
 
$ 159.00
Playfield - Toys/Add-ons
Sparky Pinball
 
$ 9.95
Eproms
Pinballrom
 
8,900
Machine - For Sale
Ontario, CA
$ 27.95
Eproms
Pinballrom
 
$ 10.00
Cabinet - Other
Filament Printing
 
$ 16.50
Lighting - Led
Lermods
 
£ 31.00
Lighting - Led
PinballToys
 
Trade
Machine - For Trade
Lewiston, NY
$ 49.00
Playfield - Toys/Add-ons
Lermods
 
From: $ 9.99
Eproms
Matt's Basement Arcade
 
$ 30.00
Playfield - Other
YouBentMyWookie
 
$ 17.50
Playfield - Plastics
Pinball Haus
 
£ 49.00
Wanted
Machine - Wanted
Red Oak, TX
$ 125.00
Cabinet - Shooter Rods
Super Skill Shot Shop
 
$ 27.99
Lighting - Interactive
Lee's Parts
 
$ 249.00
$ 62.00
Playfield - Toys/Add-ons
Lermods
 
Great pinball charity
Pinball Edu

You're currently viewing posts by Pinsider SteveNZ.
Click here to go back to viewing the entire thread.

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/wpc-95-av-board-what-could-cause-this-noise?tu=SteveNZ 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.