New Life Games LLC

**Video Poker, Keno, Slots, 21** Gaming machines => Bally Alpha (Cinevision), and ALL Bally "V___" series - V5000, V2000, V1000, etc. => Topic started by: Amechanic on September 06, 2017, 03:49:16 PM

Title: Bally V5500 Scrambled Raster (video screen)
Post by: Amechanic on September 06, 2017, 03:49:16 PM

I'm working on a Bally V5500 Video Poker machine for a friend. I was having a problem just getting a picture due to a loose connection between the MPU and mother board. I replaced the mother board and now have a tight board connection, but it now has a scrambled picture. The screen picture seems to be rolling, it's not a fixed picture. I tried to clean and reseat any EPROMs in sockets. That didn't help. I'm now stumped where to turn next? I'm wondering if my problem lays with the Ceronix 1492 chassis, or with a bad chip or socket on the MPU.


Gary

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: charles47 on February 27, 2021, 09:10:19 PM

Hi i am having same problem can you tell me what you found.please

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: GOS on February 28, 2021, 03:36:22 PM

make sure the cpu is firmly attached to back plane - none of the contacts are broken - next check the power supply - lastly a clear chip should fix.

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: charles47 on February 28, 2021, 11:31:33 PM

thanks for the information i will give it a try

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: charles47 on March 11, 2021, 01:50:59 PM

I HAD A POWER SURGE SO SENT THE MONITOR SCREEN IN TO KLAR IN VEGAS THEY FIXED IT.NOW I HAVE A SCRAMBLED SCREEN CHECKED ALL CONNECTIONS TO MPU BOARD CHECKED VOLTAGE ON POWER SUPPLY LOOKS GOOD,THEN PUT CLEAR CHIP IN AND I GET CLEARING ALL SAFERAM ALL CLEARED.PUT U10 CHIP BACK INTO BOARD AND STILL GETTING SCRAMBLED SCREEN AGAIN.DOES ANYBODY HAVE ANY IDEA'S PLEASE HELP.

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: Paul on March 11, 2021, 01:55:03 PM

Did you check the battery on the main board?
That is what keeps the settings in memory
when the machine is off.

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: charles47 on March 11, 2021, 02:01:09 PM

YES SIR I CHECKED BATTERY I HAVE 3.6 VOLTS.I LOVE YOUR BIDEN SIGN.

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: Badbaud on March 11, 2021, 02:49:13 PM

In my shop the board cleared and played fine so it's something inside his game cabinet.
I wish I had the whole game in the shop so I could dig through it.

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: GOS on March 11, 2021, 02:52:58 PM

cpu must be seated into backboard - give the cpu extra shove with palms of hands

Title: Re: Bally V5500 Scrambled Raster (video screen)
Post by: charles47 on March 11, 2021, 03:23:52 PM

OK HERE IS EVERYTHING I HAVE TRYED.MONITOR HAS BEEN FIXED,GOOD VOLTAGE AT POWER SUPPLY,GOOD VOLTAGE AT BATTERY,MPU PLUGGED FIRMLY INTO MONITOR,SCRAMBLED MONITOR SCREEN,WITH NO BUTTON LIGHTS,WHEN I PUT THE CLEAR CHIP IN BUTTON LIGHTS BLINKING ON AND I GET MESSAGE ALL HAS BEEN CLEARED ON THE MONITOR PUT U10 CHIP BACK IN AND PROBLEM COMES BACK.I DON'T KNOW WHAT ELSE TO DO.