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Author Topic: Amiga 500 boot issues  (Read 2135 times)

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Offline dbain21Topic starter

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Amiga 500 boot issues
« on: February 21, 2016, 12:52:01 AM »
I have a "spare" Amiga 500 that I haven't tested in quite a while. The system powers up and I hear the floppy drive being accessed (although the sounds are pretty faint). No red light for the drive access and no video. I removed the A501 expansion card. The battery has leaked so I will remove that and attempt to clean the PCB. All of the chips appear to be seated properly.

Please advise regarding next steps to troubleshoot this system.

Sincerely
Derek
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Offline dbain21Topic starter

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Re: Amiga 500 boot issues
« Reply #1 on: February 22, 2016, 08:39:30 PM »
@jdupuis - Thank you for the detailed response. Other than installing and removing expansion cards in various systems, I can't say that I have any experience with some of the other items that you mentioned with the exception of replacing a CPU fan and processor on my laptop several weeks ago.

I'll post a few photos of the current condition of the system later this evening if time permits. Perhaps that will assist with diagnosing the issue(s).
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Offline dbain21Topic starter

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Re: Amiga 500 boot issues
« Reply #2 on: February 22, 2016, 08:40:46 PM »
@Oldsmobile_Mike  - it is an Amiga 500 (I'm not familiar with the Plus or how to distinguish that model from a 500 ?) I will attempt to upload a few photos later this evening.
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Offline dbain21Topic starter

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Re: Amiga 500 boot issues
« Reply #3 on: February 23, 2016, 02:08:16 PM »
Here are the photos from my Amiga 500 - Rev 6a. None of the chips appear to be loose. Battery leak / damage is clearly visible on the third image (the A501 expansion board). I did not notice any capacitor leaks but I am not an expert in this area.

[ATTACH]4801[/ATTACH]

[ATTACH]4802[/ATTACH]

[ATTACH]4803[/ATTACH]

[ATTACH]4804[/ATTACH]

[ATTACH]4805[/ATTACH]
« Last Edit: February 23, 2016, 02:10:47 PM by dbain21 »
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Offline dbain21Topic starter

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Re: Amiga 500 boot issues
« Reply #4 on: February 23, 2016, 03:59:14 PM »
@oldsmobile_Mike - where is the ROM switcher located?
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Offline dbain21Topic starter

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Re: Amiga 500 boot issues
« Reply #5 on: March 01, 2016, 06:45:51 PM »
Sorry for the delayed response. I removed the ribbon cable and circuit board as suggested and plugged one ROM directly into the socket. Tried both ROM's, no luck, same problem as before. I also pushed down on all of the internal chips (I did not remove and re-seat them). Any other suggestions? If someone was looking to buy this system for spare parts or to try to resurrect it, what is a reasonable asking price? (system includes the extra ROM and expansion board, no power supply, no peripherals).
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Offline dbain21Topic starter

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Re: Amiga 500 boot issues
« Reply #6 on: March 01, 2016, 08:07:24 PM »
thanks I will try that and post the results :bump: :)
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