Midibox sid: many questions for you!

[leelinn]

Finally i have started to build my midibox_2xSID. IIt's a very exciting experince for a guy without electronic skills like me. And this is the reason i'm writing : i need help.

This is what i need to know.

About mbhp_2xSID_C64_PSU

Is it possible to use :

-KBLI0 AC instead of B40C800 ?

-2200uF/35V instead of 2200uF/25V &2200uF/16V;  2200uF/16V of last SID to reduce digital noise hum?

About MBHP_JDM

Is it possible to use:

-22uF/63V instead of 22uF/16V?

About ground connection

Mbhp_sid, Mbhp_ltc, Mbhp_DINX4 require some ceramic caps (100nF) under the pcb: how do i make the connection? where is  the    ground of pcb? (is it  any part without printed track?) About cermaic caps 100n, i found a different type of caps: they are 100nF but my dealer called them "multilayer" (I’m not sure about translation; 104/CSK - 523/RSA this is what is wrote above). Do u know them? Can i use them without problem?

Every pdf scheme files show me some ground connections: do I have to realize them too?

Isolated connection of Mbhp_dinx4

The gif  file is not so clear: do i make a bridge between hole under 74HC165 and CLI/15 of IC?

Styroflex caps

It's impossible to find this kind of caps: i have the 470pF styroflex for SID 6581 but i have not the two caps for SID 8580. What can i do?  Can i use a different and more common caps?

CORE module

after build this module, i note that under thc pic socket there is an hole (this is near the pin 22).

i found a pdf file called power fix: What is it?

10k resistor can be removed from new project: in this case the 2 holes remain free or do i have to shorted them?

Burning pic

I don't understand if i need to soldering  the 10k resistor at pin RB3 to programming a new pic.

tnx to everyone for patient :)

[tarzan boy]

i can at least help you with the burning pic part, i just got past that today, go to this thread http://www.midibox.org/forum/index.php?topic=2952.0 and look at mine and others' progress.

[seppoman]

Hi Leelinn,

I just answered in the "Parts Questions" section of the forum. Now I saw you posted the same questions here. Please try not to do double posts as it can bring confusion to the forum.

Seppoman

[Phattline]

-2200uF/35V instead of 2200uF/25V &2200uF/16V

Yes, (but you have to look how big  (diameter) the part is-maybe not enoug space?...)

-22uF/63V instead of 22uF/16V?

Yes,

"where is  the    ground of pcb?"

Take a look at the 78S05 (78L05) (The voltage regulator on the core modul, or the 78s09( 78S12) on the Sid module.

The Pinning of this part is: Input Ground Output (bottom view - front view)- that meens when you follow the middle pin of the 78s05 you will find the mass on every modul

OR!!!!:::::::

You will find the ground with a multimeter!

Do you have a multimeter? NO?! Then this is a good time to buy a multimeter, when you go into diy electronics it is a must to have a multimeter, -  measuring if a short circuit happend bevore plug you plug the power in - > you SIDS will alive (and of course a sid is more expensive then a cheap multimeter)

"Styroflex caps

It's impossible to find this kind of caps: i have the 470pF styroflex for SID 6581 but i have not the two caps for SID 8580. What can i do?  Can i use a different and more common caps?

"

I had the same problem, a take kekos- and i piss on the styroflex....)

"

CORE module

10k resistor can be removed from new project: in this case the 2 holes remain free or do i have to shorted them?

"

Let ém open

sers phat

[seppoman]

This is what I meant by "confusion"...  ;)

[moebius]

This is what I meant by "confusion"...  ;)

Whistling ;D

M