DDI-1 not working on a CPC464

Started by Zoe Robinson, 02:02, 30 September 15

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Zoe Robinson

Hi guys.

I'm sad to say that it seems the DDI-1 interface on my CPC 464 has been damaged either during a house move or when it was in storage after the move. The light comes on when I plug in the drive and power up the system but that's as far as anything goes.

The 464 doesn't recognise the |DISK or |TAPE RSX commands and the drive does not activate at all when I try to use it. I can't see any obvious damage (see pics below) on the drive itself or the connector that goes into the back of the CPC but for many years it had to be propped up a little with a pen under the expansion block in order to connect to the CPC through my DkTronics 64k memory expansion, so I suppose this was inevitable in a way.

The drive doesn't do anything and the RSX commands are not recongised even if I don't have the memory expansion plugged in and the DDI-1 is connected directly to the CPC.

I'm not a hardware person, I haven't the first clue what to do to fix this. Any ideas would be appreciated.



CraigsBar

IRC:  #Retro4All on Freenode

chinnyhill10

You given the edge connector a good clean using Isopropyl Alcohol and a swab?
--
ChinnyVision - Reviews Of Classic Games Using Original Hardware
chinnyhill10 - YouTube

Bryce

Yup, if it's not recognising the RSX commands then it's probably just dirt on the edge connector as Chinnyhill says.

Bryce.

Zoe Robinson

Quote from: chinnyhill10 on 08:21, 30 September 15
You given the edge connector a good clean using Isopropyl Alcohol and a swab?


I gave it a clean but maybe I missed something. I'll give it another try.


Thanks, guys.

gerald

Is the drive unit powered : green led on ?
The interface is powered from the drive.

chinnyhill10

I've found with kit that uses edge connectors a good clean and repeated plugging, unplugging you can usually get things working. 30 years of oxide and dirt!
--
ChinnyVision - Reviews Of Classic Games Using Original Hardware
chinnyhill10 - YouTube

Zoe Robinson

Well I cleaned the connectors (good grief, the stuff that came off those things!) and plugged the CPC in to test it out.


CLUNK


That's the sound of the monitor dying, I suppose?  :'(

Bryce

Quote from: Zoe Robinson on 11:50, 03 October 15
Well I cleaned the connectors (good grief, the stuff that came off those things!) and plugged the CPC in to test it out.


CLUNK


That's the sound of the monitor dying, I suppose?  :'(

Or it's telling you it's time to change the belt or clean the heads?

Bryce.

Zoe Robinson

Quote from: Bryce on 21:56, 03 October 15
Or it's telling you it's time to change the belt or clean the heads?


No, the clunk definitely came from the monitor.


That repair will have to wait, though. :(

Bryce

Ah, I thought you meant the drive made a clunk. A clunk from the monitor can be quite normal, doesn't have to mean anything bad.

Bryce.

Zoe Robinson

Quote from: Bryce on 15:15, 08 October 15
Ah, I thought you meant the drive made a clunk. A clunk from the monitor can be quite normal, doesn't have to mean anything bad.


Yeah, the monitor has clunked in the past but unfortunately what has happened this time is that the usual "clunk" noise I've heard for years when I press the power button was louder this time. In addition, there was no high-pitched whine from the monitor that you more feel than hear, and no power was fed to the CPC.


I'm going to have to open the monitor up to find out what's gone wrong. I'm hopeful that it's a simple fix because it was working perfectly last time I used it.

Bryce

Ooo, no power to CPC and no whine probably means that the input transformer has left the party.

Bryce.

AMSDOS

Quote from: Zoe Robinson on 20:24, 08 October 15
I'm going to have to open the monitor up to find out what's gone wrong. I'm hopeful that it's a simple fix because it was working perfectly last time I used it.


Not a good idea opening it up and playing with 240v (especially if you're not a hardware person).  :o 


Leave it to a TV repair person if you can, hand them a Service Manual.

* Using the old Amstrad Languages :D   * with the Firmware :P
* I also like to problem solve code in BASIC :)   * And type-in Type-Ins! :D

Home Computing Weekly Programs
Popular Computing Weekly Programs
Your Computer Programs
Updated Other Program Links on Profile Page (Update April 16/15 phew!)
Programs for Turbo Pascal 3

Bryce

Quote from: AMSDOS on 12:21, 09 October 15

Not a good idea opening it up and playing with 240v (especially if you're not a hardware person).  :o 


Leave it to a TV repair person if you can, hand them a Service Manual.

240V is peanuts. It's the 20KV coming out of the HT Transformer that Zoe should be worried about. :)

Bryce.

AMSDOS

True it's not the Volts that kills you, what is it? The amps or the watts? I cannot remember.

* Using the old Amstrad Languages :D   * with the Firmware :P
* I also like to problem solve code in BASIC :)   * And type-in Type-Ins! :D

Home Computing Weekly Programs
Popular Computing Weekly Programs
Your Computer Programs
Updated Other Program Links on Profile Page (Update April 16/15 phew!)
Programs for Turbo Pascal 3

Bryce

That old phrase - "It's not the volts that kills you, it's the amps" is complete rubbish as it's a combination of both and it also depends heavily on whether it's AC or DC (they kill you using different methods).

Bryce.

AMSDOS

Quote from: Bryce on 12:46, 09 October 15
That old phrase - "It's not the volts that kills you, it's the amps" is complete rubbish as it's a combination of both and it also depends heavily on whether it's AC or DC (they kill you using different methods).

Bryce.


Well I knew both were required to make it fatal.

* Using the old Amstrad Languages :D   * with the Firmware :P
* I also like to problem solve code in BASIC :)   * And type-in Type-Ins! :D

Home Computing Weekly Programs
Popular Computing Weekly Programs
Your Computer Programs
Updated Other Program Links on Profile Page (Update April 16/15 phew!)
Programs for Turbo Pascal 3

CraigsBar

So long as AC/DC does not kill you, well not a normal volumes anyway.
IRC:  #Retro4All on Freenode

Bryce

Quote from: CraigsBar on 12:56, 09 October 15
So long as AC/DC does not kill you, well not a normal volumes anyway.

Or Phil Rudd hasn't tried to have you knocked off!? :D

Bryce.

Audronic

Quote from: AMSDOS on 12:38, 09 October 15
True it's not the Volts that kills you, what is it? The amps or the watts? I cannot remember.


It does not matter Your Dead ?? :P


Ray
Procrastinators Unite,
If it Ain't Broke PLEASE Don't Fix it.
I keep telling you I am Not Pedantic.
As I Live " Down Under " I Take my Gravity Tablets and Wear my Magnetic Boots to Keep me from Falling off.

Zoe Robinson

Quote from: Bryce on 10:22, 09 October 15Ooo, no power to CPC and no whine probably means that the input transformer has left the party.

Yeah, I was thinking something like that. :(

Quote from: AMSDOS on 12:21, 09 October 15

Not a good idea opening it up and playing with 240v (especially if you're not a hardware person).  :o 

Leave it to a TV repair person if you can, hand them a Service Manual.

Nah, I'm going to hand it to my wife and give her puppy dog eyes until she fixes it. She's the hardware person in the family, she'll know what to do. :D

AMSDOS


* Using the old Amstrad Languages :D   * with the Firmware :P
* I also like to problem solve code in BASIC :)   * And type-in Type-Ins! :D

Home Computing Weekly Programs
Popular Computing Weekly Programs
Your Computer Programs
Updated Other Program Links on Profile Page (Update April 16/15 phew!)
Programs for Turbo Pascal 3

AMSDOS

Quote from: Zoe Robinson on 18:40, 09 October 15

Nah, I'm going to hand it to my wife and give her puppy dog eyes until she fixes it. She's the hardware person in the family, she'll know what to do. :D



* Using the old Amstrad Languages :D   * with the Firmware :P
* I also like to problem solve code in BASIC :)   * And type-in Type-Ins! :D

Home Computing Weekly Programs
Popular Computing Weekly Programs
Your Computer Programs
Updated Other Program Links on Profile Page (Update April 16/15 phew!)
Programs for Turbo Pascal 3

Powered by SMFPacks Menu Editor Mod