blinking power led/no screen on amiga 500

12 June 2001, 16:01

i have an amiga 500 and a philips monitor connected to it. well, when i power on the amiga i see a screen on the monitor, but it blinks, as does the power-LED of the amiga. it just blinks and gives no screen at all (with or without an inserted wb-disk for instance). what could be the problem? :/ thanks in advance!

derSammler · 12 June 2001, 16:49

If the screen is coloured you can see, which part of your amiga is faulty.

green screen = no chipmem found (or chipmem is damaged)
red screen = bad kickstart-rom
yellow screen = mostly a bad cpu or a bad expansion-card

12 June 2001, 17:04

hm..it's strange. the screen blinks white (it's a color monitor. it blinks green when in "green-mode") and then it's just blank (black). it goes white when the power-led on the amiga is on, and blank when it's off. the power-led goes on about once every two seconds, then off and so on. so the screen isn't continuously colored, it "blinks" (as does the power-led of the amiga).

Quote:

Originally posted by WindowsKiller
If the screen is coloured you can see, which part of your amiga is faulty.

green screen = no chipmem found (or chipmem is damaged)
red screen = bad kickstart-rom
yellow screen = mostly a bad cpu or a bad expansion-card

17 June 2001, 11:40

ok i had this problem.. now i got really pissed at it hit it right in the center . of the keybord

and it works now been doing it to this crap amiga for years. no joke.

i have 3 of them this one does it only thats the fix most have it on when you bang it ..

Amiga1992 · 18 June 2001, 19:41

Don't be hitting Amigas you bastard :P If it solves when you hit it, then a chip must be a bit out of place.

Open it up and make sure ALL chips are firmly socketed into their place. There surely must be a loose one playing dumb.

Don't hit it. It hurts

20 June 2001, 19:51

My Amiga 600 HD had this problem.

Every time I pressed return it crashed, the green led flashed and screen changed reg to yellow to green.

I found out it was the 1mb ram upgrade. I Pushed a wood Clothes peg in with the ram to hold it in.

This is why ram in PCs have clips to hold them in.

26 August 2006, 03:07

Hi WindowsKiller

I'm not sure what 'Chipmem' is. Is it the RAM chips? or the ROM chip?
I have an A500+ that just displays the green screen. I guess if it's the RAM i need a new board?

Thanks
CSF

Quote:

Originally Posted by WindowsKiller

If the screen is coloured you can see, which part of your amiga is faulty.

green screen = no chipmem found (or chipmem is damaged)
red screen = bad kickstart-rom
yellow screen = mostly a bad cpu or a bad expansion-card

BippyM · 26 August 2006, 11:37

yes the chipram is damaged, so new mobo i'm afraid to say!

Check the battery hasn't leaked as that is common in the 500+ machines. If it is try and clean off as much of the shit as possible and remove the battery. Hopefully the leakage hasn't caused any corrosion and it can be resurrected with a good clean!

If the board is corroded it is only any good for the bin (save all socketed chips off it tho!!)

26 August 2006, 13:27

Hi bippym, thanks for your quick reply

The Battery is quite corroded, i guess it did leak. I'll try and prise it out. If the battery is faulty does this stop the RAM from working and cause the Green Screen? also - are these batteries still available?

Sorry for so many questions, but I only recently rediscovered my 500+ in the loft of my parents house, and i really want to get it working again.

Thanks Again

Smiley · 26 August 2006, 13:35

No,the only point of the battery is to keep track of the time while the Amiga is powered off. Really the battery is not needed.

BippyM · 26 August 2006, 13:45

Remove the battery and hope the corrosion isn't too severe.

It might just be causing a short on the board, which when cleaned is fixed. Most likely it has corroded some tracks and components (hence memory not working).. good luck

12 June 2001, 16:01	#1
Akuma Posts: n/a	blinking power led/no screen on amiga 500 i have an amiga 500 and a philips monitor connected to it. well, when i power on the amiga i see a screen on the monitor, but it blinks, as does the power-LED of the amiga. it just blinks and gives no screen at all (with or without an inserted wb-disk for instance). what could be the problem? :/ thanks in advance!

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12 June 2001, 16:49	#2
derSammler Senior Member Join Date: Jun 2001 Location: Germany Posts: 1,645	If the screen is coloured you can see, which part of your amiga is faulty. green screen = no chipmem found (or chipmem is damaged) red screen = bad kickstart-rom yellow screen = mostly a bad cpu or a bad expansion-card

17 June 2001, 11:40	#4
reaperangel Posts: n/a	ok i had this problem.. now i got really pissed at it hit it right in the center . of the keybord and it works now been doing it to this crap amiga for years. no joke. i have 3 of them this one does it only thats the fix most have it on when you bang it ..

18 June 2001, 19:41	#5
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	Don't be hitting Amigas you bastard :P If it solves when you hit it, then a chip must be a bit out of place. Open it up and make sure ALL chips are firmly socketed into their place. There surely must be a loose one playing dumb. Don't hit it. It hurts

20 June 2001, 19:51	#6
Unregistered Posts: n/a	My Amiga 600 HD had this problem. Every time I pressed return it crashed, the green led flashed and screen changed reg to yellow to green. I found out it was the 1mb ram upgrade. I Pushed a wood Clothes peg in with the ram to hold it in. This is why ram in PCs have clips to hold them in.

26 August 2006, 11:37	#8
BippyM Global Moderator Join Date: Nov 2001 Location: Derby, UK Age: 48 Posts: 9,355	yes the chipram is damaged, so new mobo i'm afraid to say! Check the battery hasn't leaked as that is common in the 500+ machines. If it is try and clean off as much of the shit as possible and remove the battery. Hopefully the leakage hasn't caused any corrosion and it can be resurrected with a good clean! If the board is corroded it is only any good for the bin (save all socketed chips off it tho!!)

26 August 2006, 13:27	#9
calmstillflat Posts: n/a	Hi bippym, thanks for your quick reply The Battery is quite corroded, i guess it did leak. I'll try and prise it out. If the battery is faulty does this stop the RAM from working and cause the Green Screen? also - are these batteries still available? Sorry for so many questions, but I only recently rediscovered my 500+ in the loft of my parents house, and i really want to get it working again. Thanks Again

26 August 2006, 13:35	#10
Smiley Amiga-less! Join Date: Feb 2005 Location: UK Posts: 1,350	No,the only point of the battery is to keep track of the time while the Amiga is powered off. Really the battery is not needed.

26 August 2006, 13:45	#11
BippyM Global Moderator Join Date: Nov 2001 Location: Derby, UK Age: 48 Posts: 9,355	Remove the battery and hope the corrosion isn't too severe. It might just be causing a short on the board, which when cleaned is fixed. Most likely it has corroded some tracks and components (hence memory not working).. good luck

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