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Re: Apple II- Repair
- Subject: Re: Apple II- Repair
- From: "Tom Zuchowski" <tzuchow@attglobal.net>
- Date: Fri, 5 Jul 2002 16:04:59 -0400
- Newsgroups: comp.sys.apple2
- Organization: Global Network Services - Remote Access Mail & News Services
- References: <T_PT8.64945$Ca2.3864688@bin2.nnrp.aus1.giganews.com>
- Xref: archiver1.google.com comp.sys.apple2:21045
"Bryan Parkoff" <BParkoff@satx.rr.com> wrote in message
news:T_PT8.64945$Ca2.3864688@bin2.nnrp.aus1.giganews.com...
> Apple II- Repair
>
> I am looking for the information on the web site that it has an
original
> Apple II mainboard reference. I have suspected that mainboard does not
> operate properly after the power supply is turned on. It displays in the
> screen that it shows the character blocks. Nothing work like reset,
ctrl-b,
> etc.
> It may be possible that some IC chips are bad. Is it possible that I
> can purchase new IC chip that reads 74LS11N at the electronic store. It
> might solve the problem in order to bring mainboard back to normal.
Please
> advise.
Are you CERTAIN that your power supply is good? Failure of aged capacitors
in the power supply is the number one reason for dead Apple computers. This
can usually be fixed by replacing the electrolytic capacitors in the power
supply.
Tom Zuchowski