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Author Topic: Dk jr stuck in boot loop  (Read 5881 times)

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Offline Bagograss

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Dk jr stuck in boot loop
« on: June 18, 2019, 12:34:34 pm »
Hi everyone I'm new to this forum hope I'm posting in the right place. I have a dkjr cocktail table it has a 2 board set. Its keeps getting stuck in a boot loop with only the 1UP displayed. I put new 5b,5c,5e eproms in it and still stuck in the boot loop. Just wondering if anyone has any ideas as to what I should replace or try cleaning next?
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Offline homerwannabee

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Re: Dk jr stuck in boot loop
« Reply #1 on: June 18, 2019, 05:31:16 pm »
Since no one else has responded, I'll give you a response from my very limited knowledge.  Check the power supply.  Maybe that's doing the harm?
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Offline Bagograss

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Re: Dk jr stuck in boot loop
« Reply #2 on: June 18, 2019, 10:06:24 pm »
Hi thanks for the reply. The power on the board is all at 5.27v the power on the z80a pulses between 1.93v and 1.80v. Would this possibly be a bad z80 or am I getting poor power to the z80. I've also read about a watchdog timer is this somthing it would b doing if the watchdog time circuit is faulty?
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