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1

Maintenance / EP Capacitor list

« on: 2021.March.09. 11:13:28 »

Has anyone ever produced a Capacitor list for the EP?

I know there has been talk of recapping them but not sure how relevant that
is

Thnx

BP

2

Hardware / Using DRAM memory

« on: 2015.April.09. 13:51:07 »

This is not an Enterprise issue as such but I wanted some advice on using DRAM.

I have a synth that has the facility to upgrade the sample memory with a card using
256k x 1bit DRAM, 12 of them. These IC's have a single write enable line (W) and
separate input and out bits (D) and (Q) which are tied together.

That seems simple enough.

I want to create a memory card that uses 256k x 4bits, 3 of them. These IC's have a
single write enable (WE) AND an output enable (OE) and the 4 bits are I/O ports.

So again this seems easy enough apart from the usage of the WE and OE. I have a single
write enable (W) coming in so my question is, does anyone have experience using these and
how do the (WE) and (OE) get derived from a single (W)?

My assumption so far is that the (W) will go to the (WE).

Russ

3

Maintenance / EP64 will not boot.

« on: 2012.September.04. 23:53:25 »

OK my EP64 has finally stopped working, I replaced some memory about a year ago
but have not used it since then, as I normally use my EP128.

Today I am getting random things happening

Most of the time it will boot with a display of white and black vertical lines:

sometimes with mixed colours:

sometimes random:

On the odd occasion it will show the EXOS 2.0 test and twice it displayed the
"Enterprise" logo and allowed me in. As soon as i started pressing keys it
locked up and beeped with a constant tone.

Any thoughts or help in getting this one up and running would help.

I was using an Enterprise PSU which powers my 128 ok, I was also
using normal TV via the modulator.

Thanks

Russ

4

Interface / Enterprise Expansion Connector

« on: 2011.January.17. 14:03:10 »

Zozo ( or anyone )

Can you tell me if the edge connector supplies a +5v ?

I have noticed that the expansion module converts the +9v (A/B)33 down to
+5v on (a/B)4. I was not sure if the Enterprise had +5v on these anyway or
I had misunderstood a question from some time ago.

Thanks

Russ P.

5

Wanted / Bagpuss is back

« on: 2008.April.22. 09:47:15 »

Hi all,

I am back on the scene and need to get hold of an Enterprise.

SOOOOOOO, if anyone see's one then pleasae let me know as I
am keen to get back into the swing of things.....

Zozo, I have just built a DVIDE interface for my Spectrum and was
wondering if it is possible to look at some thing like this for the
Enterprise. I am now using a 1GByte Compact Flash as a drive on
my 48K Spectrum and the IDE interface is very good.

Regards and Respect to all

Russ P.
bagpuss22

6

Hardware / Enterprise EP80 Printer

« on: 2007.May.03. 14:23:32 »

Hi all,

Does anyone know what EPSON printer this was based on?

I need to get a new ribbon and am not able to get tot the
printer at the moment.

Thanks.

Russ P

7

Programming / TommyGun Developer Studio

« on: 2007.February.01. 11:18:46 »

Hi all, again!

Thought you might be interested in an 8 bit developer studio that I have been playing
with... TommyGun.

TommyGun Developer Studio

He intends to add the Enterprise as an available machine and I have been supplying him
with information as he owns 3 Enterprise 64's!