Alphatronic PC - Seeking Eng version of Service Manual and is ROM Cartridge slot damaged?

ElfieUK4 · Jan 24th 2021

Hello

I have just got a TA Alphatronic PC with FD drive and need an English version of the Service Manual - all that I have found at the moment is in German.

Also looking at the rom slot I notice several connections do not meet up - will this have an affect on the machine or are they all suppose to have a gap between them. Therefore looking for that part.

Is anyone able to help out or point me to the Manual and connector?

Thank you

Alan

rfka01 · Jan 24th 2021

Hi Alan,

the computer was sold under the name "Royal Alphatronic PC" in the UK, so it'll be easier for you if you include that in your searches.

Unfortunately I ony have the regular manual in English, but not the service manual - and forum member Hobi should be able to help you with your ROM slot.

Robert

Hobi · Jan 24th 2021

Quote from ElfieUK4

Also looking at the rom slot I notice several connections do not meet up - will this have an affect on the machine or are they all suppose to have a gap between them. Therefore looking for that part.

At the moment I don't have a clue what do you mean. Send some pictures and drawings to elaborate a bit more.

ElfieUK4 · Jan 24th 2021

Hello Hobi

I have attached the photo of the socket with the pin damage.

Also a few more photo's of the machine turned on without a rom in the slot and one with a rom in the slot.

Hopefully pictures speak a thousand words.

Alan

rfka01 : thank you - it's one I did not get ( but got the original Users Manual + Adv User manaul + CP/M manual)

Hobi · Jan 24th 2021

I still dont get it. It seem to be OK, when a ROM Modul is inserted. So The only Problem left to check if there is any short circuit.

There should not be any Pins that are short circuited. You may fix it gently with a screw driver.

ElfieUK4 · Jan 24th 2021

Hobi , thank you. I have sorted out the issue by slotting a piece of card into the slot.

Because most of all the pins in the ROM connector slot was touching the opposite side, that stopped the machine from booting into Microsoft BASIC.

Does anyone know where I can get a new H421121-15 ROM slot connector from?

Hobi · Jan 24th 2021

Standard Edge Card (SEC) II 30 pin Mouser etc

ElfieUK4 · Jul 2nd 2021

Hello

Back in Jan I managed to replace the cartridge slot and totally recap the whole machine including the PSU.

This solved all the issues and now looking forward to using it for many years.