Welcome, Guest. Please login or register.

Author Topic: Amiga 500 display problems  (Read 4920 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline GadgetUK

  • Jr. Member
  • **
  • Join Date: Mar 2013
  • Posts: 89
    • Show all replies
Re: Amiga 500 display problems
« on: March 27, 2013, 12:08:32 PM »
Quote from: shooey;730508
Hi,
 
I have an Amiga 500 which I haven't used in a long time, and have been trying to get it working. It boots up fine, but the problem is, I can hardly see the display.
 
I've tried connecting the RF output into an aeriel socket and tuning in on analogue, and I've tried the video output into a scart socket (capable of RGB) using a fully wired scart adapter, and I've tried the video output into the yellow socket of 3 phono plug connection. I've actually tried all those things on 2 different TV's.
 
In all cases the picture looked like it wasn't tuned in properly, and on one of the TV's it was rolling.
 
I've seen in other posts, that rolling can be a sign of NTSC, but I can think of no reason why it would be NTSC as it's an English Amiga and I'd never fiddled about with the settings that I can remember.
 
Can anyone suggest anything that I can try, or is it likely that the TV modulator no longer works properly?
 
*apologies for all the incorrect terminology used above, but you can hopefully figure out what I mean*
 
Thanks

If you've tried 2 different TVs and you've done RF, composite mono (the yellow phono connector on the left side at the back), and RGB via scart and they all look fuzzy it sounds like you've got a fault.
 
First thing to check is the Power Supply, then I guess its time to open the Amiga up and look to see if you can see any damage. It could be a capacitor problem but my first thought is the power supply.
 
EDIT: Also note, if this is a 500+ there will be a leaked battery inside that needs removing and cleaning up and will have damaged the board. If you have a memory expansion in the trapdoor that could also have a leaked battery which may or may not have damaged the expansion and or the motherboard - try removing expansion and retest if there is one.
 
EDIT2: You mentioned you've tried RGB - do you mean you've got an amiga to scart lead which plugs directly into the port where the modulator normally goes?  You've tried that as well and get a fuzzy picture? Post a photo of the screen if you can so we can see what the fuzziness looks like.
« Last Edit: March 27, 2013, 12:12:24 PM by GadgetUK »
 

Offline GadgetUK

  • Jr. Member
  • **
  • Join Date: Mar 2013
  • Posts: 89
    • Show all replies
Re: Amiga 500 display problems
« Reply #1 on: March 27, 2013, 03:16:36 PM »
Quote from: shooey;730535
Hi,

Absolutely perfect picture via mono socket. So I guess my A520 is faulty. Thanks very much for all the help.

Cheers


Awesome!  Dont throw that modulator away, either I can take a look at it for you, or stick it on EBAY as faulty.