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(Topic ID: 246597)

Sys 3 Gottlieb not booting

By slghokie

4 years ago

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21 posts
4 Pinsiders participating
Latest reply 4 years ago by slghokie
Topic is favorited by 6 Pinsiders

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Cactus Jack's Gottlieb, 1991

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#5 4 years ago

BEN

Benhurr

Inactive member

Carquefou

7y 30,550 226 1

Put your Voltmeter over C19 on A1 and adjust the 5v potentiometer R3 on A2, be care to not pull it over 5,1V...R3 is increasing rapidly.
20190707_204444 (resized).jpg

#11 4 years ago

BEN

Benhurr

Inactive member

Carquefou

7y 30,550 226 1

Is your button batterie new? U8 chip on display board could be the problem...

#13 4 years ago

BEN

After bad work on 5v board I burned the controller board...change U8 but nothing better so I change every chips and components but nothing better so I pull of the sticker on U3 and the glass was broken so I bought a new one and A1 works perfectly now

#15 4 years ago

BEN

Benhurr

Inactive member

Carquefou

7y 30,550 226 1

If I remember...somebody who got the same problem made a post a long time ago and he change the U16 chip on A1
I also advise you to change ribbon cables...if you not already done and wright it on this post....Sorry as I am French it take much time to re-read all the post so...
Good luck

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