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Old 29 September 2009, 16:31   #1
amicrawler
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Question amiga 3000 issues

my 3000 when powering up is blinking 7 x 's the powerlight what does this mean ?
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Old 29 September 2009, 17:52   #2
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Your battery has leaked and something random is knackered...

Check all traces around Paula, Denise etc...
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Old 30 September 2009, 08:57   #3
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removed all zip memory and put chip ram in to the memory banks in the 20pin banks
no affect moved jumpers around no affect moved them back no affect hard drive will write and then yellow screen power light blinks 7'x very quickly this is all started when up grading the zip memory any ideas would be a big help A3000 rev 7.3 motherboard
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Old 30 September 2009, 09:03   #4
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amiga desktop 3000 16mhz 030 moved j852,151,152,851 moved them all back to org spots on broad filled ram slots u850-857 moved from u267-274 the 3000 will not boot any more just flashing codes and yellow screen
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Old 30 September 2009, 09:05   #5
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batt was removed no batt leakage at all clean broad
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Old 30 September 2009, 18:40   #6
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Try to clean and re-insert the daughter card. The A3000 will not work without it.

Also check the power supply voltage levels, in special the +5V & tick rail.
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Old 01 October 2009, 08:12   #7
amicrawler
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Wink re:

did clean the daughter borad did no good
not to sure what you mean by "in special the +5V & tick rail"
i'm need to the 3000 just had 500 and 1000 they all ways worked unless good ol guru erros happend
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Old 01 October 2009, 10:56   #8
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Quote:
Originally Posted by amicrawler View Post
not to sure what you mean by "in special the +5V & tick rail"
He means connect a Multi-Meter to the various pins on the connector from the PSU to the motherboard to check the voltages.

http://pinouts.ru/Power/amiga3000power_pinout.shtml
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Old 01 October 2009, 21:51   #9
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Quote:
Originally Posted by amicrawler View Post
not to sure what you mean by "in special the +5V & tick rail"
He means connect a Multi-Meter to the various pins on the connector from the PSU to the motherboard to check the voltages.

http://pinouts.ru/Power/amiga3000power_pinout.shtml
Always check these voltages with power applied to the motherboard. The rails do not stabilize properly if the output is left open-circuited.
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Old 02 October 2009, 01:09   #10
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Always check these voltages with power applied to the motherboard. The rails do not stabilize properly if the output is left open-circuited.
Good advice, however are there good points to measure these voltages safely? Perhaps you could point them out on a picture of an A3000 motherboard?
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Old 02 October 2009, 01:22   #11
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Good advice, however are there good points to measure these voltages safely? Perhaps you could point them out on a picture of an A3000 motherboard?
Aren't the voltages accessible to probes through the upper part of the motherboard power socket? If so, that is where I would suggest measuring them safely.

I don't own an A3000 myself. I only pointed out that the PSU rails don't stabilize when presented with an open circuit on the basis of my experience with A1200 PSUs.
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Old 02 October 2009, 02:28   #12
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my 3000 when powering up is blinking 7 x 's the powerlight what does this mean ?
Are you in Sacramento by any chance? We just helped a guy test some ZIP memory in his 3000 and when we rebooted it did this... Never got it figured but it looked like some of the memory legs could have been damaged.
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