Apple II

Does Anyone Recognize This Card?

Submitted by gsmcten on August 14, 2011 - 6:42pm

I was just up on eBay and there is a card for auction that I have never seen before.

The Item number is 280724325328 and it seems to be a mouse interface with a SCSI connector.

Any ideas? Smile

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Apple II

Apple IIe Failing RAM Test

Submitted by Alex5532 on August 13, 2011 - 12:29pm

Hi,
I need a help for my apple IIe, starting the self-diagnostic test I obtain on my monitor the following string:
RAM: F13 F12 F11 F10 F9 F8 F7 F6
Or sometimes
RAM:

I have changed the following ICs:
SN74LS125N
74S109
SN74S10N
and ONE 4264 (DRAM)
I have also cleaned the pins of the ROMs and MMU
But the problem still remain.

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Apple II

hello have you ever make this investigate of apple II's ps2 keyboard converter?

Submitted by adoreapple on August 13, 2011 - 12:06pm

recently,I read web's article about apple II keyboard to ps2 converter and make investigate.but unfortunelly,I fail it.first when I use socket to my apple II.it can't boot.or can't hear disk drive sound.I assume it is IC problem.have you ever been investigate it and sucessful.can you share it experence.thx

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Apple II

What is needed to utilize a current-day printer with an Apple IIgs ROM 3's CPU?

Submitted by Apple IIgs on August 13, 2011 - 5:12am

What is needed to utilize a current-day printer with an Apple IIgs ROM 3's CPU?

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Apple II

ADTPro with a USB Serial port?

Submitted by retroaudio on August 11, 2011 - 3:30pm

Hi,

I would like to run ADTPro from my laptop but it does not have a serial port. I have a USB to serial adapter and wonder if it can be used. When I start ADTPro and select the serial config option, no port numbers are shown in the drop down menu.

Can this combination work?

Thanks,

Richard.

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Apple II

Apple IIgs ROM 3 System Questions

Submitted by Apple IIgs on August 8, 2011 - 5:19am

Apple IIgs ROM 3 System Questions.

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Apple II

Duo Drive Cable

Submitted by retroaudio on August 7, 2011 - 4:47pm

Hi,

Does anyone know where in the UK I ca get hold of a 25pin to 29pin cable for the Apple Duo Drive?

Or I could make one if someone could let me know the connections.

Many Thanks,

Richard.

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Apple II

Power Supply Identification

Submitted by retroaudio on August 6, 2011 - 2:10pm

Hi to All,

I am trying to identify a fried component on an Apple IIe power supply. I have a couple of schematics but they differ from the supply I have.

Mine is a 120v version, Apple part number 825-0510-A, manufactured by DynaComp Inc.

It is the first component on the neutral line after the switch!

A diagram would be great if someone could point me in the right direction.

Thanks,

Richard.

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Apple II

Dead Apple?

Submitted by retroaudio on August 5, 2011 - 3:11pm

Hi All,

I received an Apple IIe today which I am told has been in storage for a number of years. It looks clean enough inside but it does not power up.

It is a 120v model so I hooked it up with a suitable transformer but the supply voltage does not get past the IEC power socket. This looks to have some built in filtration but I get no voltage at the output side.

is it possible that the filter has failed?

Would it be ok to replace it with a non filtered type just to prove that the machine will power up?

Any help gratefully received!

Thanks,

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Apple II

Where did serial numbers start for the II Plus and Bell & Howell models?

Submitted by epoxy2600 on August 4, 2011 - 3:02pm

What's the lowest serial number of either model you've seen, and do you know the motherboard date?

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Apple II

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