exxos's Atari, Amiga & retro forum

Posted: **Sun Nov 07, 2021 6:52 pm**

Hi guys,

Just working on Willie's Falcon,

We are doing:

PSU recap
Falcon motherboard re-cap
Exxos clock buffer
Exxos NVRAM
Exxos RAM board
Floppy drive clean
CF card reader to replace HDD
Install FPU
Install Fast TOS 4.04
Disable wait states

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Just checking to make sure it's working as expected to begin with

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There are two types of NVRAM on Falcon boards, the Motorola is the most difficult to remove as its legs aren't visible on the top side, so all the work needs to be done from the bottom. The ground plane is very strong so I needed to use my hot air gun while protecting the area with kapton tape

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A quick clean up with solder wick

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Socket installed

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NVRAM installed

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Fast TOS 4.04 installed so we can later disable the motherboards wait states

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Posted: **Sun Nov 07, 2021 6:53 pm**

Clock patch installation

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Posted: **Sun Nov 07, 2021 6:53 pm**

100k resistor added to clock patch on SDMA line

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Re-capping the PSU

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Posted: **Sun Nov 07, 2021 8:46 pm**

Steve wrote: ↑Sun Nov 07, 2021 6:52 pm There are two types of NVRAM on Falcon boards, the Motorola is the most difficult to remove as its legs aren't visible on the top side

I didn't know that. I've still not replaced the NVRAM on my Falcon yet, but it's good to know I've the 'easier' type.

BW

Posted: **Mon Nov 08, 2021 8:16 am**

Thanks for posting Steve. Good to see the old bird getting the TLC she deserves.

Posted: **Tue Nov 09, 2021 1:55 pm**

~Willie~ wrote: ↑Mon Nov 08, 2021 8:16 am Thanks for posting Steve. Good to see the old bird getting the TLC she deserves.

No worries man!

Posted: **Mon Dec 13, 2021 2:35 pm**

Mobo recapped and wait states removed:

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Posted: **Mon Dec 13, 2021 11:35 pm**

Looking good Steve. Looking good....

Posted: **Tue Dec 14, 2021 2:25 pm**

Just some shots of cleaning the floppy drive, changing the drive motor capacitor, securing the CF card reader with kapton tape and double sided tape.
@~Willie~

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Posted: **Tue Dec 14, 2021 6:39 pm**

Wow Steve, those TOS 4.04 desktop icons are looking pretty cool it must be said. Can't quite get my head around seeing those 1GB partitions.

I'm getting excited now

exxos's Atari, Amiga & retro forum

Willies Falcon service blog (Nov 2021)

Willies Falcon service blog (Nov 2021)

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Re: Willies Falcon service blog (Nov 2021)

Re: Willies Falcon service blog (Nov 2021)

Re: Willies Falcon service blog (Nov 2021)

Re: Willies Falcon service blog (Nov 2021)

Re: Willies Falcon service blog (Nov 2021)