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Messages - keyboardjunkie

Pages: [1] 2
1
Wanted / Re: Enterprise board - L2 - Variable Inductor?
« on: 2019.August.25. 21:41:04 »
Hey All,

So, I soldered in the new inductor from Zozo - still no screen display - does anyone know how to adjust the inductor to the correct postition?

Are there / is there a voltage I should be measuring on the board whilst adjusting the L2 inductor?

I had the EP working before the inductor broke..

Thanks for any help!

Mark.

2
Wanted / Re: Enterprise board - L2 - Variable Inductor?
« on: 2019.July.24. 13:04:12 »
Sent you a PM Zozo :-)

3
For Sale / Re: Ebay auctions
« on: 2019.July.24. 13:00:39 »
It certainly appears so!

It was posted today - so I will see what it is like properly in the flesh when it arrives :-)

KbJ

4
For Sale / Re: Ebay auctions
« on: 2019.July.20. 17:33:52 »
Cheers Zozo - have emailed a company in the UK that specialises in finding old varibale inductors (epecially Toko).  We'll see what they come back with.

Any update on the price for the Ram upgrade / EXOS ROM and have your coils appeared yet?

Just a genltle nudge! :-)

Mark.

5
For Sale / Re: Ebay auctions
« on: 2019.July.20. 16:05:36 »
Thanks Judge!

I got delivery for 25UK Pounds - which I was happy with at the end of the day.

That'll make 2 EP 128's and 1 EP 64 in my collection (and I think I have another EP128 and EP64 in my loft somewhere!) and one board which I am fixing up - just need that coil (113CNK1881) from Zozo when he gets them - he got the last 3! :-(

Can't now find any of those coils on the web - I wish I knew what the coil was - inductance wise - may be able to find a replacement that will work..

Is there a parts list document anywhere that lists the parts and values of the EP components that you know of?

Also - I got the modulator from you (posted my your daughter - please pass on my thanks to her!) and soildered it in - works a treat!

Will look better when I get that coil in though!

Thanks again,

Mark.

6
For Sale / Re: Ebay auctions
« on: 2019.July.18. 18:57:02 »
Thanks for that Judge!

I've sent the seller an email on Vatera - he is getting back to me with a price.

Happy days!

KbJ

7
Wanted / Re: Enterprise board - L2 - Variable Inductor?
« on: 2019.July.18. 17:03:34 »
Yes! 

If you could price me up for a coil and a memory expansion - and another of your super EXOS roms, I would he happy to send you money via paypal for those!

You are a star mate!

Many thanks.

Mark.

8
Wanted / Re: Enterprise board - L2 - Variable Inductor?
« on: 2019.July.18. 16:52:35 »
And they're sold out!  :-(

Zozo - did you get your order?  Can you spare one? :-)

KbJ

9
For Sale / Re: Ebay auctions
« on: 2019.July.17. 14:12:40 »
Board on ebay frim the Russian Federation - not a bad price:

https://www.ebay.co.uk/itm/Rare-Enterprise-64-8-bit-Zilog-Z80-based-home-computer-board-only/323801335025?hash=item4b641044f1:g:IqgAAOSwCMRc0us6

KbJ

10
Wanted / Re: EP Case etc.
« on: 2019.July.17. 12:20:59 »
Hi Zozo!

Now that's a great idea!  I could stick it into a Mini ITX case... project EnterPC!

Nice!

KbJ

11
Wanted / Re: Enterprise board - L2 - Variable Inductor?
« on: 2019.July.17. 12:19:27 »
Thanks!  I just ordered 5 too!

Nice find indeed!

KbJ

12
Wanted / Enterprise board - L2 - Variable Inductor?
« on: 2019.July.17. 00:20:02 »
Hi All,

I've got a defective component on my refurb EP128 board.  L2 - is this a variable inductor?  Anyone know what the value is and where to get one?

Thanks

Mark.

13
Wanted / EP Case etc.
« on: 2019.July.16. 21:57:47 »
Hi all,

I know this is a very long shot, but looking for an EP case to put a rescued and repaired 128 motherboard into..

Anyone with anything?

Thanks,

Kbj

14
Wanted / Re: UM1233 RF Modulator
« on: 2019.July.13. 22:56:32 »
Hi Zozo!

Hope you are well friend!

I wanted to get the EP as original as I possibly could - and a new modulator seemed like a must have :-)

I have tried the pot next to the modulator to no avail - I guess my next job will be to scope the video signal into the modulator to see if it looks good - but I think that the modulator is bad (the rust might be the cause!)

I may buy that one on ebay and replace it anhyhow.

I need also to get a 128k upgrade for it - do you have any for sale?

I will also need to look for a case to put it in, but I guess that will be very hard to find..

The power side of the EP was completely broken - it was much easier (and a better choice) to replace it with an EPower module - no need for a heatsink (which I don't have either and may need to try and make something)

If you have any parts - or know anyone with parts - a case, heatsink etc. I would love to find these.

Thanks Zozo!

Mark.

15
Wanted / UM1233 RF Modulator
« on: 2019.July.13. 00:02:35 »
Hey All,

Has anyone got a spare, working UM 1233 RF modulator they are willing to part with?

I'm currently ressurecting a car boot sale find - an old EP128 (board only) that had been _very_ abused.  I've got it working but the RF ouput is making a buzzing noise on the picture and all the colours appear wrong (background on the flashing EP logo at first boot is a fuzzy blue colour) and all the text on the screen appears to be 'bleeding' a fair bit like it's off channel.  Tried everything to get it looking better and now I wonder if the RF modulator is broken..

EP appears to work fine apart from that - I'll attach a picture for you experts to take a look at!

Also, Had to replace a missing LM1889 IC - I think there should have been a resistor across 2 pins of the IC if I recall - anyone got any info about it?  I'll post a pic of the board too..

Thanks for any help you guys can give me!

Mark.

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