Caple C871i Manual de usuario descargar pdf (Pagina 380)

Apple II Computer Info

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### Created : Sunday, January 14, 1996 Modified: Sunday, January 14, 1996

### File Type: "TEXT" File Creator: "LMAN"

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Path: news.uiowa.edu!news.physics.uiowa.edu!math.ohio-

state.edu!howland.reston.ans.net!newsfeed.internetmci.com!news.sprintlink.net!herm

es.is.co.za!news.pix.za!digitec!stephen.shaw

From: [email protected] (STEPHEN SHAW)

Newsgroups: comp.sys.apple2

Subject: My //e fails to turn on!

Message-ID: <[email protected]>

Date: Thu, 11 Jan 96 02:18:00 +0200

Distribution: world

Organization: Digitec Online - South Africa

Reply-To: [email protected] (STEPHEN SHAW)

X-Newsreader: PCBoard Version 15.22

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Lines: 41

Hello Alberto!

On 01/02/96, Alberto Roffe wrote to All:

AR> I am having some problems with my Apple //e! It fails to turn on! I

> have to turn its power switch on and off several times and sometimes

> wait a long time till it finally powers up!

Are you using an uninterruptable power supply (UPS). The output should

be sine wave but some components in them change with age giving a square

wave that Apple power supplies don't like.

AR> What could be the problem? The power supply? Would replacing it solve

> the problem?

> Someone suggested me that the power switch might be wearing off so I

> decided to leave the computer turned on and just turn off the

> regulator where I connect the computer and all its peripherals but the

> problem persists! So that can't be the problem, or can it?

If you open the power supply up (WITH THE MAINS PLUG OUT!) you will

find a capacitor C7 near the transformer in the middle of the printed

circuit board (a 220 uF 16V capacitor if I remember correctly) change it

for a 220uF 25V 85 degree Centigrade rated capacitor and it should clear

the problem up.

AR> I also checked the computer's power cord at both ends, connecting and

> disconnecting it several times without success, and I checked inside

> the computer; the power supply seems properly connected to the

> motherboard. Thanks for any advice.

AR> ----------------------------------------------------------------------

> ------ Alberto Roffe Illades You never know what you

> have [email protected] until you lose it

> ----------------------------------------------------------------------

Apple II Computer Technical Information : Apple II Family Hardware Info

ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 380 of 572

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Caple C871i Manual de usuario Pagina 380

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Caple C871i Manual de usuario Pagina 380

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