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Topics - teopl

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Maintenance / Fix EP64 no video out and maybe more
« on: 2021.March.05. 17:15:34 »
Hello I have started adventure of fixing one EP64 from Egypt with help from a neighbour who knows electronics, since I don't know anything about hardware :)

I know there are a lot of topics regarding fixing EP64 but I would like to create new for this special case.

I already read some of those topics and from issue I have (less then 12V on video and no video output on OSSC device - "no sync" as compared to working one "15.60Hz 50.02Hz") I we did:

- replace TR2 (BC337)

After this, it's still 7.7V on video.

Btw machine is never used with Philips capacitors, and there is red light in the middle when connected to power. Also, keyboard membrane is cut off but I guess this doesn't count when fixing the rest.

We didn't replace C9 (as I saw this is common issue) because we were not sure if it's good voltage - can we put "3db, 100uF, 16V" instead of "3db, 100uF, 10V" for C9?

Next thing for me is:
- replace C9 and TR2 (at the same time!)
- read more on the forum
- buy some electric device to do some measurement?

Meanwhile it would be great if someone has to add something (which is not easily found on other topics) and which a total hardware noob like me can do :)

Thing is that every visit to the neighbour is costing money so I would go with precise requests to him what to try next...

Thanks!

2
Programming / porting amstrad cpctelera software to enterprise
« on: 2020.June.14. 11:46:20 »
Hello.

After spending 2 days investigating about platform differences (amstrad cpc and enterprise) my enthusiasm of porting software from CPC to EP is at very low point :)

reason for this is that I don't have nearly enough of required knowledge of assembler and the platforms and I also used cpctelera library which does produce z80 assembler and doesn't use CPC firmware (which is good) but in any case for me to handle keyboard, different video setup, sound... it would be too big task as it looks right now.

I have watched a little of chibiakumas fantastic enterprise tutorials and read a little here on the forum about various porting (also AGD for example) and I decided to put this idea of porting my cpctelera software to enterprise "on hold" since it's currently outside of my scope.

That being said, my question is: does someone here has knowledge about cpctelera library and what effort would be to make the cpctelera output enterprise executables? (or something close to that). Is this even possible to do? (at least to some degree)

Sorry if the question is "too ambitious" but there is already very large software/games written using this library and I guess EP could benefit from this.


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