English Amiga Board

Go Back   English Amiga Board > Support > support.Hardware

Thread Tools
Old 27 October 2009, 12:51   #1
Commodore Collector
Join Date: Aug 2001
Location: Austria
Age: 48
Posts: 833
b/w flickering screen when using 2MB PCMCIA SRAM card

Hello guys,

I have a strange problem using a 2MB SRAM card together with an Amiga-600 or Amiga-1200:

When I start the Amiga with the card, the screen goes to b/w for parts of a second every few seconds. This happens even directly after startup where the purple screen with animation of the disk is shown.
I have tested the card with both an A-600 (Rev. 1.3) as well as A-1200 (Rev. 1D.4 I think). Both were connected to 1084 monitor using te video-out. (have not tried with RGB, yet)

However, the card shows up as 2MB in Workbench, so it seems to work.
When I start the Amigas without the card then the problem is gone.

Has anyone ever come across such problems ?
Or is my card just broken or somehow incompatible ?!
It is a no-name PCMCIA SRAM card which according to the seller is compatible with Mitsubishi Melcard.

Thanx a lot for any suggestions!
Overdoc is offline  
Old 27 October 2009, 12:53   #2
Thalion Webshrine
alexh's Avatar
Join Date: Jan 2004
Location: Oxford
Posts: 12,165
It is some sort of analog electronics design flaw / component failure on certain A600 motherboards which affects RF & composite (video out) during any PCMCIA activity.

Use RGB and the flickering is gone.
alexh is offline  
Old 27 October 2009, 18:37   #3
I hate potatos and shirts
rkauer's Avatar
Join Date: Oct 2007
Location: Sao Leopoldo / Brazil
Age: 52
Posts: 3,482
Send a message via MSN to rkauer Send a message via Yahoo to rkauer
Bet on bad capacitors for this issue, specially those near the power connector and near the PCMCIA connector.
rkauer is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
2MB PCMCIA SRAM card for A600 TjLaZer MarketPlace 0 01 July 2011 08:00
WTB - 2mb PCMCIA SRAM fitzsteve MarketPlace 2 19 August 2010 16:29
FS: 2MB SRAM PCMCIA card DoogUK MarketPlace 17 14 November 2009 02:02
FS : PCMCIA SRAM 2mb coze MarketPlace 0 20 February 2007 17:52
2mb Pcmcia Sram Memory Card vroom6sri support.Hardware 4 06 March 2006 00:20

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +2. The time now is 22:06.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Page generated in 0.05858 seconds with 13 queries