Search found 19 matches

by Voyageur
Tue Jun 04, 2019 2:10 am
Forum: Hardware hacks and extensions
Topic: Composite video mod?
Replies: 12
Views: 363

Re: Composite video mod?

Many thanks, Iss.
I will try it or a similar one.
:D
by Voyageur
Mon Jun 03, 2019 11:54 am
Forum: Hardware hacks and extensions
Topic: Composite video mod?
Replies: 12
Views: 363

Re: Composite video mod?

Thank you for all the info ! Very useful !
But nothing about a good converter from the 74LS365, RGB+Sync Outputs to Composite video, ignoring the UHF part ?
I'm looking at this problem... :roll:
by Voyageur
Sun Jun 02, 2019 7:59 am
Forum: General Discussion
Topic: You Suffered A Catastrophic Failure, Please Surrender Your Server
Replies: 14
Views: 426

Re: You Suffered A Catastrophic Failure, Please Surrender Your Server

Thank you, Dbug.
If I can make some Oric repairs (advice included, postage far too expensive :oops: , sorry...).
by Voyageur
Sun May 26, 2019 12:04 am
Forum: Hardware hacks and extensions
Topic: Atmos with a Slice of Raspberry Pi
Replies: 7
Views: 318

Re: Atmos with a Slice of Raspberry Pi

Last year I've made an ORICPI for the fun. You could have a look at forums.oric.org, "OricPi" and "Clavier ORIC en USB" (in flag_fr ). I replaced the original mother board with a small one, including a Raspberry Pi, an Arduino Leonardo and a USB Hub. The OricPi worked with Chameleon and it was OK ! ...
by Voyageur
Mon Mar 11, 2019 8:44 am
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 32
Views: 4851

Re: ORIC SDCARD

I finally made a dirty version of the ORIC SDCARD and that's working pretty well...

Have a look here :

https://youtu.be/QB_Fa6f4D-g

Thanks to EdL42 ! :D
by Voyageur
Mon Mar 04, 2019 7:04 am
Forum: Technical questions
Topic: Dead oric 1
Replies: 48
Views: 3355

Re: Dead oric 1

Hi,
do you know how to read a chip and how to identify its pins (from 1 to 40 by example, for the largest chips) ?
Did you get the Oric's schematics ?

A+
by Voyageur
Thu Feb 28, 2019 11:53 am
Forum: Technical questions
Topic: Dead oric 1
Replies: 48
Views: 3355

Re: Dead oric 1

Hi Traindriver69, good to see that the 7905 is good. But there is still something on the mother board that drains a "lot" of current. 4.1 V are not sufficient ! And you said that the speaker is making noise... Not good ! Is your Oric plugged to a tv or a monitor ? Unplug everything. Just keep the Or...
by Voyageur
Tue Feb 26, 2019 3:40 am
Forum: Technical questions
Topic: Dead oric 1
Replies: 48
Views: 3355

Re: Dead oric 1

The measure has to be done outside the Oric, between the power supply and the computer. If you make it with the Plus Power line (usually in red on the schematics), you could try something like that : schema2.jpg and tell us what you read in DC amperemeter position (settings on 2 Amp or more in a fir...
by Voyageur
Fri Feb 22, 2019 11:17 am
Forum: Technical questions
Topic: Dead oric 1
Replies: 48
Views: 3355

Re: Dead oric 1

9V or 12V are the same for testing purpose. No damage to expect. But the value of 4.2V seems to be not enough for the Oric... Around 5V is perfect. The schematics on the sticker is good. I propose to put the multimeter in ammeter option in your power line positive. It should read around 700-800 mA (...
by Voyageur
Wed Feb 20, 2019 10:32 am
Forum: Hardware hacks and extensions
Topic: Oric-1 Sound Mod HELP !
Replies: 13
Views: 1243

Re: Oric-1 Sound Mod HELP !

Happy to see that everything's fine.
Where did you put the pot ?
It could be useful for other "aficionados" (and I am one) to show the way you solved the problem. :D
A+
by Voyageur
Mon Feb 18, 2019 3:05 am
Forum: Demos
Topic: OricExos - making the impossible
Replies: 143
Views: 17026

Re: OricExos - making the impossible

Whaou !

What a nice job !
Looking forward to be see the demos outgoing of this tower of Oric' MoBo ! :D
by Voyageur
Sun Feb 17, 2019 10:09 pm
Forum: Hardware hacks and extensions
Topic: Oric-1 Sound Mod HELP !
Replies: 13
Views: 1243

Re: Oric-1 Sound Mod HELP !

volume control on the Oric is the main thing I am after I have published a way to control Oric's volume in the Oric.org website, see forum and look for "REGLAGE DU SON DE L'ORIC". Sorry, it is in flag_fr , but you can use the schematics. Hope that could help you. Maybe I have to translate it for de...
by Voyageur
Sun Feb 17, 2019 10:57 am
Forum: Hardware hacks and extensions
Topic: Oric-1 Sound Mod HELP !
Replies: 13
Views: 1243

Re: Oric-1 Sound Mod HELP !

And after having checked everything, please consider that you actually want to use a second speaker way for a in-line sound of a monitor with built-in amplifier and speaker... Maybe you face a problem of level adaptation. The 1084 wiki says: "Monitor input signals at the CINCH socket 1) Accumulated ...
by Voyageur
Sun Feb 10, 2019 5:57 am
Forum: Hardware hacks and extensions
Topic: Oric-1 Sound Mod HELP !
Replies: 13
Views: 1243

Re: Oric-1 Sound Mod HELP !

And also, because I can't see it, did you cut the track on the Oric board between the red and the grey wires ?
by Voyageur
Sat Feb 09, 2019 10:02 am
Forum: Hardware hacks and extensions
Topic: Oric-1 Sound Mod HELP !
Replies: 13
Views: 1243

Re: Oric-1 Sound Mod HELP !

Hi,
could you connect a speaker on your RCA plug, something like 8 ohm/half or 1 Watt ?
Just to hear (or not) any sound ?