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Author Topic: Just got myself an A3000... need some help! :D  (Read 2358 times)

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Offline Zac67

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Re: Just got myself an A3000... need some help! :D
« on: October 06, 2012, 04:17:06 PM »
- try swapping the CIAs to see if that changes your keyboard problem, one is possibly hosed
- the very short SCSI cable does actually work without a terminator most of the time but I'd add proper termination nonetheless - if you can't find a proper resistor pack for the mainboard an external terminator is fine as well (Macintosh style) - and more practical when you want to use external drives
- ZIPs come in 1Mx4 (xx4400) or 256Kx4 (xx4256) sizes, the latter add only 1 MB per bank
- the ZIP chips may also be xx4402 or xx4258 - these are static column chips that are slightly faster with an '030)
- you can't mix 1Mx4 and 256Kx4 chips
- if you've only got 256x4 ZIPs and can't fill all banks you can empty the first bank, move those chips up and refill the first bank with easier to get 256Kx4 DIPs
- if you mix static column and fast page chips the first bank must not be all static column
 

Offline Zac67

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Re: Just got myself an A3000... need some help! :D
« Reply #1 on: October 08, 2012, 07:26:47 PM »
Quote
Don't think you will get a display while toggling the amber switch 15/31khz while machine is on. Pretty sure is has to be cold booted to what ever toggled format you want.


Amber has no problem with being turned on and off while powered on. Your monitor may think differently. ;)