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(Topic ID: 195177)

Stargate cpu

By Pauldb

6 years ago



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  • 6 posts
  • 4 Pinsiders participating
  • Latest reply 6 years ago by Pauldb
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#1 6 years ago
OP
 
???

Pauldb

Inactive member

6y 21,650 16

Hi guys,
My soundboard is missing 2 eproms en there is no led. (Maybe somebody knows where i can buy it?) All other led on the cpu board and other boards are on but not blinking. Also with a new dmd panel still no display image. Can the "i think defect" u8 on the display board be the cause the cause the led on the cpu board is not blinking? When i power in the pinball the light is on but only on the playfield, not the insert light. No blinking lights on the playfield. Further no activity at all.

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#2 6 years ago
 
DAD

tonyhoff1

Pinside member

US Parma, OH

8y 53,900 871 26

Did you check all fuses by the transformer?

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#3 6 years ago
 
DAN

GLSP3022

Pinside member

9y 82,550 1,727

I had an issue with my Tee'd Off after replacing the battery w a socketed one where the DMD would go blank and all the LEDS went solid. I knocked the EPROM on the CPU loose accidentally. Once i cleaned the legs and re-seated the chip, it worked and booted normally. Check the EPROM on the cpu.

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#4 6 years ago
 
MAR

MarAlb

Pinside member

NL Zeist

9y 53,650 814 19

You are living in Holland also....no problem to shoot 2 soundroms for you.

Is there +5V present? An easy measurement and you can adjust it with the potmeter at the power supply board in the middel of the backbox.

There are enough shops in Holland which can provide you parts and rom's like Flipperwinkel. StarJet delivers excellent repair services and I do board repairs also.

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#5 6 years ago
OP
 
???

Pauldb

Inactive member

6y 21,650 16

Next week ill probably receive u8 ic, it is not present on the display board i noticed. Ill come back to this subject after i try that one.
Thanks everybody for now! Really appreciate it!

1 week later
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#6 6 years ago
OP
 
???

Pauldb

Inactive member

6y 21,650 16

...after insert u8 still no boot.
No led on soundboard and solid led on display contol board.
I think the main problem is that the LED on the control board is also solid, witch means there is no CPU activity?

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