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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: pontium on September 08, 2008, 01:31:11 AM

Title: Unknown resistor size on A4000T
Post by: pontium on September 08, 2008, 01:31:11 AM

Hello there,

A friend of mine,brought me yesterday an escom amiga 4000t,to see if I can fix it.I found a burned resistor near the LISA chip,named R501.The problem is that the resistor has burned too much,so I cannot read the number over it.I tried my luck at google but i didn't find anything usefull,like a service manual or information about the "bom".

If anyone has an amiga 4000T,please reply and tell me what size is this resistor.

Thank you for your time,
Giorgos

Title: Re: Unknown resistor size on A4000T
Post by: Jeff on September 08, 2008, 04:20:45 AM

I just checked R501 on mine and it either says 1R0 or 1RO. I can't tell if the last digit is a Zero or an capitol "O"

Good Luck,
-Jeff

Title: Re: Unknown resistor size on A4000T
Post by: X-ray on September 08, 2008, 08:14:38 AM

Just checked mine, it says what Jeff said.

Title: Re: Unknown resistor size on A4000T
Post by: rkauer on September 08, 2008, 11:03:21 AM

 And this means 1 Ohm (!)

 Check the path of that resistor. If it burned down with that low resistance value, something more is wrong.

Title: Re: Unknown resistor size on A4000T
Post by: pontium on September 14, 2008, 10:33:18 PM

Repaired and runs fine!

Thank you guys!