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sound board problems on my wpc dcs pinball

Why does nobody make new WPC sound boards? | Tech: Generic ...

Speech boards for System 7/9, then all Williams audio boards up until early WPC used the 55516 series of CVSD decoder chips for speech decoding. These haven't been available in a LONG time. The WPC-DCS sound boards used a different set of components, and the later WPC's are the ones that have boards available.

WPC Sound Board problem | Tech: Modern games | Pinside.com

No problem, so I swapped out the sound board form my SS and used it instead. Sound was working fine for the past month and low and behold, today the same thing happened. My son was playing an very good long game of MM and then the cabinet speaker cut out. Same issue as before. So now I am down 2 sound boards.

Tech: Corvette Sound Problem (WPC DCS) - rec.games.pinball

rec.games.pinball . Discussion: Tech: Corvette Sound Problem (WPC DCS) ... The sound board is a A-16917 WPC DCS. When the game starts up I get 10 "BONGS" out of the ...

WPC DCS Sound and CPU FPGA Project (Page 1) - Edward Cheung

The first step was to reproduce the WPC-DCS circuit, since it was simpler (only uses a PAL). My hope was that once it was running using IJ ROMs, I could make some small changes, load in MM ROMs, and show that WPC-95 was simply a repackaging of WPC-DCS. To get started, I needed to know the equations for U16, the PAL on the WPC-DCS board.

Wpc dcs scratchy sound - Aussie Arcade

Have a WPC DCS sound board that is scratchy. It was in a Demolition Man, i swaped ribbon cable, no change. I then put it in a Judge Dredd (with Demo Man ROMs) - still scratchy. I then installed the JD ROMs in it, still in Judge Dredd - still scratchy. So the issue is definetly on the board - i replaced the 2 1uf caps (c32 C41) - still scratchy.

WPC Sound Board A-12738 Repair | Carolina Pinball Repair

After making sure the ribbon cable wasn’t the problem or the already socketed chips on the board, I did a little sleuthing and with fairly high certainty determined the U9 RAM to be the culprit. I socketed and replaced the 28-pin 6264 RAM chip, plugged the board back in my test machine and viola, working A-12738 sound board.

WPC Sound Board C28 failure - Google Groups

I just authored a PinWiki article on pre-DCS sound board problems. ... The Place to go for Pinball Repair ... and electrolytic caps on a WPC 89 sound board when I ...

Repairing Williams/Bally WPC Pinball Games from 1990 to 1999 ...

3o. When things don't work: Sound Problems. The sound on WPC games is very robust; it just doesn't fail too often. But here are some things that do fail related to sound: Re-seat all the sound board ribbon cables. Surprisingly, this fixes a large number of WPC sound problems! Bad rectifier diodes on the sound board.

Williams WPC - Pinball Supernova

2.3 WPC FlipTronics I & II 2.4 WPC DCS Sound 2.5 WPC-S CPU 2.6 WPC-95 CPU 3 Technical Info 3.1 WPC Parts List Lookup 3.2 WPC System Generations 3.2.1 WPC CPU 3.2.2 WPC-S CPU 3.2.3 WPC-95 CPU 3.2.3.1 WPC-95 CPU Factory Modification 3.3 WPC Power/Driver Board Generations 3.3.1 WPC-089 Power/Driver Board 3.3.1.1 WPC Power/Driver Board Layout Errors

Williams WPC - PinWiki

Audio DSP The audio susbsystem uses the same part as the DCS sound board the Analog Devices DSP part ADSP-2105 and an AD1851 DAC. For its time, this was an extremely fast device (40MHz), and is capable of providing all of the sound processing needed in a WPC pinball machine.

WPC Sound Board C28 failure - Google Groups

I just authored a PinWiki article on pre-DCS sound board problems. ... The Place to go for Pinball Repair ... and electrolytic caps on a WPC 89 sound board when I ...

Tech: Corvette Sound Problem (WPC DCS) - rec.games.pinball

rec.games.pinball . Discussion: Tech: Corvette Sound Problem (WPC DCS) ... The sound board is a A-16917 WPC DCS. When the game starts up I get 10 "BONGS" out of the ...

WPC sound board repair - YouTube

Pinball Pro Williams WPC - DCS SWTR-2 Installation www.pinballpro.com - Duration: ... Guide to Repairing DMD Board in WPC Pinball Machine (Part 1 ... Williams Blackout Pinball Sound Board Fix ...

WPC Sound Board Problems - DC to Speakers - Aussie Arcade

WPC Sound Board Problems - DC to Speakers 4 March 2009, 07:23 PM After months (nearly 2 years) of procrastinating, I decided to fix the audio in my Doctor Who.

Wpc dcs scratchy sound - Aussie Arcade

Have a WPC DCS sound board that is scratchy. It was in a Demolition Man, i swaped ribbon cable, no change. I then put it in a Judge Dredd (with Demo Man ROMs) - still scratchy. I then installed the JD ROMs in it, still in Judge Dredd - still scratchy. So the issue is definetly on the board - i replaced the 2 1uf caps (c32 C41) - still scratchy.

WPC Sound Board A-12738 Repair | Carolina Pinball Repair

After making sure the ribbon cable wasn’t the problem or the already socketed chips on the board, I did a little sleuthing and with fairly high certainty determined the U9 RAM to be the culprit. I socketed and replaced the 28-pin 6264 RAM chip, plugged the board back in my test machine and viola, working A-12738 sound board.

Repairing Williams/Bally WPC Pinball Games from 1990 to 1999 ...

3o. When things don't work: Sound Problems. The sound on WPC games is very robust; it just doesn't fail too often. But here are some things that do fail related to sound: Re-seat all the sound board ribbon cables. Surprisingly, this fixes a large number of WPC sound problems! Bad rectifier diodes on the sound board.

Machine Bride of PinBot sound problem - help me start ...

* Main amplifiers are bad: On WPC-DCS and WPC-95 games, the TDA2030A amps are pretty fragile too. On WPC-DCS this is at U27 & U28, on WPC-95 at U5 & U6 (not used on pre WPC-DCS games). * Check both of the TL084 op-amps too. Depending on the revision of the sound board, these audio amps can effect a certain type of sound they amplify.

Repairing Williams/Bally WPC Pinball Games from 1990 to 1999 ...

Another problem can be cracked power solder joints on the power driver board at capacitor C30 and bridge BR5 (WPC-S and prior), or capacitor C8 and diodes D3, D4, D5, D6 (WPC-95). This happens much more often on WPC-S and prior games though.

Sound boards NEO & PLUS – PinSound

WPC DCS Sound Board : A-16917 WPC-95 AV Board (with or without original AV Board) : A-20516-50041 SEGA / STERN Whitestar (CPU section must be working): 520-5136-00 / 520-5137-01

WPC sound board repair - YouTube

Pinball Pro Williams WPC - DCS SWTR-2 Installation www.pinballpro.com - Duration: ... Guide to Repairing DMD Board in WPC Pinball Machine (Part 1 ... Williams Blackout Pinball Sound Board Fix ...

WPC Sound Board A-12738 Repair | Carolina Pinball Repair

After making sure the ribbon cable wasn’t the problem or the already socketed chips on the board, I did a little sleuthing and with fairly high certainty determined the U9 RAM to be the culprit. I socketed and replaced the 28-pin 6264 RAM chip, plugged the board back in my test machine and viola, working A-12738 sound board.

#5 WPC DCS Sound PCB (Roadshow) | Pinball Revolution

For some reason I want to say the owner also mentioned there was no game sound as well, which initially had me thinking this was a DSP issue. (DCS games have the volume control integrated and controlled by the DSP where pre-DCS games actually used a Z-pot or electronic potentiometer for this task)

Machine Bride of PinBot sound problem - help me start ...

* Main amplifiers are bad: On WPC-DCS and WPC-95 games, the TDA2030A amps are pretty fragile too. On WPC-DCS this is at U27 & U28, on WPC-95 at U5 & U6 (not used on pre WPC-DCS games). * Check both of the TL084 op-amps too. Depending on the revision of the sound board, these audio amps can effect a certain type of sound they amplify.

WPC sound board problem (A-12738)**FIXED**

Re: WPC sound board problem (A-12738)**FIXED** « Reply #6 on: July 22, 2010, 03:22:50 pm » Okay, we have a bad static RAM chip (U9). turns out the chip was causing the CPU reset line and it's associated circuit to randomly dip low causing the CPU to be in a continual state of limbo.

STTNG-L7/LX7 Project - WPC DCS - Pinball Sound Community Forum

The one issue I came across was that the explosions sounds from the pops at the top were a bit to loud on my system and thus came out as distorted. However, what I have seen so far I like. On a L/LX7 note, I will be uploading my Beta shortly as it looking good for some testing now.

Pinball Hobby - Edward Cheung

WPC DCS Sound and CPU FPGA Project (Page 3) See here for Page 2 Using an FPGA to replicate no longer available components on the Sound and CPU Boards in a WPC-DCS Pinball Machine. These include the two ASICs and PAL.

Board Repairs - Pinball Heaven

Pinball repair services (onsite and workshop based) - Pinball Heaven October 25th, 2016 […] board for your pinball machine. You can find out more about our pinball board repair service here. If you find yourself facing one of these problems or any other issue with your pinball machine, […] Log in to Reply

Williams Pinball Home Page - docentelectronics.com

Sound Board Switch. SPDT. Used on Many System 3 to 7a Sound Boards. $1.25 Each $10.00 for 10. MSW-5353: Nylon Stand Off. 1/2 inch. $3.00 for 10. NYSOW-1000 (White) NYSOB-1000 (Lt. Brown) Williams Cables Email for low prices on custom made cables or Pinball cables not shown: WPC, WPC95 MPU to Driver PCB J211, J113 CABRC-1001 . $5.00: WPC MPU ...

Rottendog Circuit Boards - The Pinball Wizard

Bally/Williams WPC Supplemental Driver board #WDB008 Price : Price: $48.95 Click to view Bally/Williams Left & Right AN LED Display Classic Orange #DIS011 Price : Price: $165.00 Click to view Data East/Sega Universal Flipper Board #FLP023 Price : Price: $90.00 Click to view

Tech: TZ/WPC Sound board Problems A-12738 - rec.games.pinball

Tech: TZ/WPC Sound board Problems A-12738 (too old to reply) Pinball Magic 2005-02-22 23:30:16 UTC ... Post by Pinball Magic Ok.. Tonight I replaced C20, C46, and C47 ...

#5 WPC DCS Sound PCB (Roadshow) | Pinball Revolution

For some reason I want to say the owner also mentioned there was no game sound as well, which initially had me thinking this was a DSP issue. (DCS games have the volume control integrated and controlled by the DSP where pre-DCS games actually used a Z-pot or electronic potentiometer for this task)

williams wpc sound board : pinball - Reddit

I have a sound board that MAY need to be replaced. On the back it says 5766-13306-03, in the manual it goes by A-16971. It would be for a Jack*Bot, and I noticed that others online that have this machine with the translite off have what appears to be a different board....different color, different arrangement.

WPC Speaker Pop Eliminator! | Pinball Revolution

No more screwing anything down anywhere in the head! I also designed this to work on both WPC89 and WPC-DCS sound boards even though the DCS boards are not affected nearly as bad as the WPC89 boards. (The previous version only worked on WPC89 sound pcbs) Here are a couple of quick shots of the installation, which literally takes less than 1 minute.

WPC sound board problem (A-12738)**FIXED**

Re: WPC sound board problem (A-12738)**FIXED** « Reply #6 on: July 22, 2010, 03:22:50 pm » Okay, we have a bad static RAM chip (U9). turns out the chip was causing the CPU reset line and it's associated circuit to randomly dip low causing the CPU to be in a continual state of limbo.

Board Repairs - Pinball Heaven

Pinball repair services (onsite and workshop based) - Pinball Heaven October 25th, 2016 […] board for your pinball machine. You can find out more about our pinball board repair service here. If you find yourself facing one of these problems or any other issue with your pinball machine, […] Log in to Reply

The Shadow OST - WPC DCS - Pinball Sound Community Forum

A mix with original Pinball and movie score would be awesome. So I used for this the original movie score from Gerry Goldsmith. And it's imo one of the best soundtracks ever. Goldsmith nailed the theme. Have fun with it and please let me know what could be made better. I am still not sure with a few sounds. Best Regards. Asael

Repairing Williams System 3 through 6 Pinball Games, Part 1

WPC - The WPC System, "Williams Pinball Controller", was introduced in 1991 with Funhouse These games featured Dot Matrix Displays (DMDs) (although Funhouse still utilized alpha-numeric displays). An interesting note is that Williams switched back to separate MPU and Driver boards with the WPC System.

Repair Blog - Chris Hibler Pinball

WPC Power/Driver Board – 13 February 16 Symptom Typical WPC Power/Driver board. Burned GI headers. Other headers past service life. The Fix GI and all power headers replaced. Capacitors C2, C4, and C5 replaced, all for long term reliability. I test WPC power/driver boards in my Twilight Zone. My game has the 9.4H home ROM which allows the ...

WPC Transformers - Welcome to my Web site

WPC went through a couple of evolutions. The first thing is that WPC machines needed a new generation of transformer to provide 50V and 100V a.c for the DMD power circuits. Most of the output windings and connectors are the same across the entire range. However, DCS boards require a 12V winding, not the 18V winding from the earlier systems.

Bally pinball sound board issue - YouTube

Pinball Mods # 15 Pinsound Sound Board Install for Twilight Zone : Game Play, Install, ... Fixing WPC pinball machine reset problems - pt 1 - PinballHelp.com - Duration: 1:36.

williams wpc sound board : pinball - Reddit

I have a sound board that MAY need to be replaced. On the back it says 5766-13306-03, in the manual it goes by A-16971. It would be for a Jack*Bot, and I noticed that others online that have this machine with the translite off have what appears to be a different board....different color, different arrangement.

TECH: DCS Scratchy / Staticy Sound - rec.games.pinball

Going thorough some DCS boards and have one that's giving me fits. I just called it a night and will dig more into it tomorrow. The problem is clearly on the sound board. I have been testing them in a known working game. Board produces scratchy/staticy sound. My usual mode of operation on a PCB is to suspect previous work first.

Pinball! : Visual PinMame 1.10 Sound Problems

> #1) Williams/Bally WPC: DCS sound still have some problems. > (Don't use full volume (30-31) to avoid static noise) > > This is what i find in the docFiles Well, I tried pulling down my volume (both in Visual PinMAME, by using the ` key) and by going into the menus of the game itself.

KWS Pinball Circuit Board Repair - Electronics Company - 19 ...

PSA: Be careful who you let do work on your circuit boards. This WPC DCS sound board is mixing up the audio playback speech. My guess is a trace for the processor is fubar.

Serial WPC Transformers help - Google Groups

> my shadow has a 5610-13953-00 - that should work! A shadow transformer won't work in a WW. DCS uses 12 volts, WPC-89 sound uses 18 volts. None of those transformers will work - the first one is not a WPC P/N, the next 2 are DCS transformers, the 4th one is WPC-95

TECH: WPC Resets and the WPC MPU Daughterboard | CREDIT DOT

One was returned because the individual still had resets – he used my board to rule out a 5-volt rail problem, fixed a diode problem elsewhere and then sent the daughterboard back. Go figure. I personally think it is more interesting to ask where along the well-documented path of best practices for addressing WPC resets should different ...

Repairing Williams System 3 through 6 Pinball Games, Part 1

WPC - The WPC System, "Williams Pinball Controller", was introduced in 1991 with Funhouse These games featured Dot Matrix Displays (DMDs) (although Funhouse still utilized alpha-numeric displays). An interesting note is that Williams switched back to separate MPU and Driver boards with the WPC System.

Pinball Troubleshooting&Tips

Please post your questions to the newsgroups rec.games.pinball for the (eg..)Gottlieb problem, and rec.games.video.arcade.collecting for the (eg..)Space Duel problem. You can also do a search in for both games (eg.. for the Gottlieb problem do a search for "Gottlieb" "Tech" "System I" or "System 80") and you should find most of your questions ...

Circuit Boards - The Pinball Resource

WPC, WPC-95, and Pinball 2000 Replacement Boards, Opto's and LED's, Bally Stern Replacement Boards. Ultimate MPU Board The Ultimate MPU Board is a replacement board for Bally/Stern and other Pinball machines. This single board supports over 90 Bally, Stern, and other games. The board is from Alltek System.

williams wpc sound board : pinball - Reddit

I have a sound board that MAY need to be replaced. On the back it says 5766-13306-03, in the manual it goes by A-16971. It would be for a Jack*Bot, and I noticed that others online that have this machine with the translite off have what appears to be a different board....different color, different arrangement.

Detailed Repairs and Information for Bally Twilight Zone Pinball

Bottom line: If you are hearing cracking/popping only in your speech on a pre-DCS machine, it could be related to your +5VDC supply. Either the supply is poor coming into the sound board or some aspect of the sound board's +5VDC handing may be failing or failed. In my case, it was C34. Clock Repair. Original 5/8/2013. Updated 5/17/2013

PinMAME Sound Command Mode with WPC games - VPinMAME ...

PinMAME Sound Command Mode with WPC games - posted in VPinMAME: Hey there. Im the user formerly known as Dorsola, and I just recently got back into playing around with Visual Pinball and VPinMAME. Today, I was trying to play around with the Sound Command Mode feature in VPinMAME and ran into the same problems I hit way back in 2001 when trying to populate sounds.dat with voice clips from games ...

Bally / Williams WPC-Era Pinball Machine Speaker Replacement

Tony's Do-It-Yourself Guide to Speaker Replacement on WPC-Era Bally/Williams Pinball Machines. Last updated: November 25, 2005. Introduction. It's a commonly accepted fact that the stock speakers used in WPC-era Bally and Williams pinball machines don't do justice to the audio tracks the sound systems in those machines can actually reproduce.

GitHub - neophob/wpc-emu: Williams Pinball machine emulator ...

In this final revision of the WPC hardware, the dot matrix controller and the DCS sound boards are combined into a single A/V board, while the Power/Driver and the Fliptronics boards are combined into a single Power/Driver board, bringing the board count down to three boards.

PINBALL: Repair Williams System 11 Pinball 1986-1990, part one

This board can be used in system 11, 11a, 11b or even 11c. To use a system 11b board in a system 11c game, you just don't use connectors 1J16 (volume control) and 1J15 (speakers) on the system 11b board. Also the sound ROMs at U21 and U22 are not used, since they are moved to the sound board.

MPU327- This board replaces both the MPU ... - The Pinball Wizard

Because of ongoing problems with the background sound and the second ball kick out on the MPU327 Boards these will no longer work correctly on Williams system 7 games. Please do not purchase this board if you are going to use it your system 7 game. Rottendog is working on a solution for this issue but so far have been unable to correct the issues.

WPC-era Sound System Information

WPC-era Sound System Information In this section we'll look at the different sound systems used in WPC-era games, and the modifications we make to use replacement speakers. First Generation (pre-DCS) Early WPC games use an A-12738 sound card with a single LM1875 integrated circuit amplifier.

Wpc Board for sale | eBay

There seems to be a problem serving the request at this time. ... Wpc Pre DCS Sound Board. ... Williams / Bally WPC Pinball Display Control Board (DMD) C $8.55.

pinball sound board | eBay

Williams Pinball Machine DCS Sound Board A-16917. Pre-Owned. C $388.32. ... Capacitor Rebuild Kit for Bally Williams Pinball WPC Audio Sound Board A-12738. Brand New.

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