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Author Topic: Sprint 1 troubleshooting  (Read 3201 times)
vernimark
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« 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.
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smarty
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« Reply #1 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.

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vernimark
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« Reply #2 on: March 03, 2017, 11:14:30 AM »

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

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vernimark
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« Reply #3 on: March 07, 2017, 01:52:40 AM »

Omg, gear is ok but the motor sound doesn t react to the car speed
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Luigi
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« Reply #4 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  confused
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vernimark
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« Reply #5 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  pacman
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Luigi
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« Reply #6 on: March 07, 2017, 12:19:38 PM »

That's life! Smiley

Congrats  Space Ace
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vernimark
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« Reply #7 on: March 27, 2017, 11:42:21 AM »

thank you Smiley
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