Author Topic: [Restauration] Crazy Kong fase 1  (Read 55711 times)

Etienne MacGyver

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Re: [Restauration] Crazy Kong fase 1
« Reply #30 on: October 15, 2010, 10:56:34 AM »
PM sent  ;)

Etienne MacGyver

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Re: [Restauration] Crazy Kong fase 1
« Reply #31 on: October 15, 2010, 11:15:36 AM »
So....did I miss something ? Are you now sure that the boards have problems ? Did you adjust the voltage ?

I have a feeling you're going to end up with 3 working boards..... ;)

Im still waiting your opinion....
you wrote:

Quote
Let me dl the schematics too...

level42

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Re: [Restauration] Crazy Kong fase 1
« Reply #32 on: October 15, 2010, 11:18:07 AM »
O yeah, that download was so slow that I either forgot about it or cancelled it....I'll try again tonight...
:D

Belike

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Re: [Restauration] Crazy Kong fase 1
« Reply #33 on: October 15, 2010, 01:21:01 PM »
i just checked, and its now on 1,50 there is a second bidder..
I'll take muerto's offer, and you go for thisone, then we are both happy
just put 24 oktober 18:00 in your schedule  ;)

still thanx to superully for the link !
Thanx Etienne, there is 5 bids on it by now(none of them mine), I think the price will go too high. :o

Etienne MacGyver

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Re: [Restauration] Crazy Kong fase 1
« Reply #34 on: October 15, 2010, 02:14:08 PM »
Robin offered to look at my boards, so in the end i think i will wind up with 3 working boards
the two i have here, and the one from muerto

im sure we can work something out if the ebay board is too expensive...  ;)

Belike

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Re: [Restauration] Crazy Kong fase 1
« Reply #35 on: October 15, 2010, 02:56:16 PM »
Robin offered to look at my boards, so in the end i think i will wind up with 3 working boards
the two i have here, and the one from muerto

im sure we can work something out if the ebay board is too expensive...  ;)
I also have 3 non- or semi-working, maybe I ask Robin to fix those also, than we will have the biggest collection of CK pcbs with 6 pieces. ;D
« Last Edit: October 15, 2010, 10:01:52 PM by Belike36 »

Etienne MacGyver

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Re: [Restauration] Crazy Kong fase 1
« Reply #36 on: October 16, 2010, 03:23:49 PM »
Okay, found some spare time this morning, and went to the machine to check the trimmer on the powersupply that i found in the schematics.

Lets try to see if it can give a little more juice than its giving now..

Armed with a trimkey, voltmeter and a flashlight i entered the cage of the monkey  ;)



Whats that  ???  lets take a closer look and see...



Thats not what i am looking for ! , that is not an ajustable resistor, thats a normal one  >:(

hmm, im in doubt to go to my electronics supplier and buy the right trimmer that supposed to be there or just leave it like it is, and let robin check the boards first..

I think i'll wait robin's tests..


level42

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Re: [Restauration] Crazy Kong fase 1
« Reply #37 on: October 16, 2010, 04:06:57 PM »
Yup, that's where the 5V regulator pot should be...
Cheap bastards ! ;)

I'd put a potmeter in there anyway. You may always want to be able to correct the voltage.

However......the schematics don't specify the value !!

Etienne MacGyver

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Re: [Restauration] Crazy Kong fase 1
« Reply #38 on: October 16, 2010, 05:55:59 PM »
However......the schematics don't specify the value !!

damn!  :twisted:

Anybody here with a zaccaria cab that does have the pot ?  and if yes, can that person check the value of the pot for me ?

flip971

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Re: [Restauration] Crazy Kong fase 1
« Reply #39 on: October 16, 2010, 08:12:36 PM »
Did You can publish the schematics?
On the schematics there is any value of the parts?

Etienne MacGyver

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Re: [Restauration] Crazy Kong fase 1
« Reply #40 on: October 16, 2010, 08:46:49 PM »
@ flip971

I while back I did a scan of a Zaccaria Crazy Kong manual, it's available here: http://www.antelopearcade.com/manuals/Crazy%20Kong.pdf

I did not look for specs yet, but andre mentioned that there where no specs for the pot in the schematics..

EDIT:

Just looked again in the schematics....

No offence Andre, but are you not wearing your glasses ??
(that sounds more friendly than "are you f#cking blind!")  ;D



So next week i will be buying a 47 ohm pot i guess..
« Last Edit: October 16, 2010, 08:54:48 PM by Etienne [NL] »

level42

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Re: [Restauration] Crazy Kong fase 1
« Reply #41 on: October 16, 2010, 09:05:37 PM »
I zoomed in a bit too much I guess  ;D

SO, order a pot and TRY IT !  (Which sounds a little nicer than....uhm dunno really)  ;D

Anyway, you can see that they already specified the fixed transistor OR the pot...
« Last Edit: October 16, 2010, 09:07:23 PM by Level42 »

flip971

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Re: [Restauration] Crazy Kong fase 1
« Reply #42 on: October 17, 2010, 08:22:44 AM »
@ flip971

I while back I did a scan of a Zaccaria Crazy Kong manual, it's available here: http://www.antelopearcade.com/manuals/Crazy%20Kong.pdf

I did not look for specs yet, but andre mentioned that there where no specs for the pot in the schematics..

EDIT:

Just looked again in the schematics....

No offence Andre, but are you not wearing your glasses ??
(that sounds more friendly than "are you f#cking blind!")  ;D

So next week i will be buying a 47 ohm pot i guess..

I see now the link and the scematics... :oops: :oops: :oops:

Etienne MacGyver

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Re: [Restauration] Crazy Kong fase 1
« Reply #43 on: October 24, 2010, 08:22:33 AM »
Ok back on this, i went to the electronics shop to give it a try.
 picked up the powerboard and as you can see it is a little dirty :o




After some cleaning with a brush first, and later with some cloth it looks alot better.




My electronic supplier mentioned to me that the value of the pot (50 ohm) is "old" and that the only thing he has for me that comes close is 100 ohm.
Since the normal pot does the same job, i asked if he had that in 50 ohms, wich he did have.
I preffered a "onboard" variant, but because of the value issue, i went for the normal pot option, since i like to use the correct value




Solder tools in position, lets go !  :D




Look at that circuit!, totally tinned, i have not see that in a long time!




After adding a little fresh solder to flux it up a little, tin sucking in action! I love my desolder station  8)




The reason why i love tin sucking is that after that the old part just falls out without hussle
The resistor i kept in a piece of paper wich i attached to the technical manual that i printed, if i want to reverse my modification, and then i have the original part  ;)




I am a little peter packrat when it comes to parts, so more than one year ago when i installed some servers on my job i had some spare cables that came with a kind of "net tule" wich i put in my laptopcase instead of trashing it.
I knew that there would be a day that it comes in handy.
So because of the size of the pot i need to install some cable from the pot to the powerboard.




To create a very nice "extention" to the pot i used the tule for the cables.
Looks very professional IMHO  :-*  Thanx HP !  :D




After soldering the wires to the pot, i adjusted the pot to the value of the resistor that was there..  22 Ohms.




Modification complete !  ::)




Now i need to test it out, wich i did not do yet.
I have measured the values before the modification:

The "working board" FCK-01 (came with the machine)
11.95 volts measured on the board between pin 1 and 5
4.91 volts measured on the board between pin 1 and 9

The "other board" FCK-00 (from Level 42)
11.87 volts measured on the board between pin 1 and 5
4.66 volts measured on the board between pin 1 and 9

straight on the connector (without board connected)
12.05 volts measured on the connector between pin 1 and 5
5.3 volts measured on the connector between pin 1 and 9

The question now to you specialists:

Do i just connect the FCK-00 board, measure the 5 volt line and try to pump up the voltage to exactly 5V and reboot the machine then ?

Or what is the recomended way to go from here ?

« Last Edit: October 24, 2010, 01:51:35 PM by Etienne [NL] »

italiandoh

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Re: [Restauration] Crazy Kong fase 1
« Reply #44 on: October 24, 2010, 09:19:35 AM »
Do i just connect the FCK-00 board, measure the 5 volt line and try to pump up the voltage to exactly 5V and reboot the machine then ?

Yes.

Matteo