Dragon's Lair Fans - Arcade Lifestyle

General Chat => Technical Area => Topic started by: vernimark on March 02, 2017, 03:48:34 AM

Title: Sprint 1 troubleshooting
Post by: vernimark on March 02, 2017, 03:48:34 AM

I'm troubleshooting a Sprint 1 pcb. It works properly with just one exception: it ignores the gear. 9312 is ok and I can follow the switch signals till data bus.
Any idea? Coin, start, led, test and gas work properly.

Thank you.

Title: Re: Sprint 1 troubleshooting
Post by: smarty on March 02, 2017, 09:47:52 PM

Quick question, when in test mode do you hear a screech sound every time you change gear 1,2,&3? Changing to 4th gear shouldn't make any sound in test mode.

Title: Re: Sprint 1 troubleshooting
Post by: vernimark on March 03, 2017, 11:14:30 AM

yes, I hear a screech for 1, 2 and 3.

Title: Re: Sprint 1 troubleshooting
Post by: vernimark on March 07, 2017, 01:52:40 AM

Omg, gear is ok but the motor sound doesn t react to the car speed

Title: Re: Sprint 1 troubleshooting
Post by: Luigi on March 07, 2017, 08:53:51 AM

So you were assuming that the gear don't work properly because it didn't change the sound?

This reminds me that I still need to check the Sprint 2....one of the cars is getting insanely fast in gear 4  :?

Title: Re: Sprint 1 troubleshooting
Post by: vernimark on March 07, 2017, 11:11:12 AM

yes I replaced the pot. regulates ~MOTOR1 and now the sound is ok. A stupid issue sorry  :pac:

Title: Re: Sprint 1 troubleshooting
Post by: Luigi on March 07, 2017, 12:19:38 PM

That's life! :)

Congrats  :spaceace:

Title: Re: Sprint 1 troubleshooting
Post by: vernimark on March 27, 2017, 11:42:21 AM

thank you :)