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1

'Business' Area : Buy/Sell/Trade / FS: Wico XY Pattern Generator Repro

« on: January 08, 2015, 08:09:41 PM »

I've just let works the Wico XY Pattern Generator repro.

Schematic on the network has some inaccuracies so unluckily this first pcb release has several fixes.

Final PCB release is ready to send in production but I'm waiting to know the eventual interest.

Even enclosure will be available on request as you can see on photos even It's just a prototype and will be obviously improved.

Still don't know the exact price, just looking for interested people.

Thanks for your attention,

Piero

2

Technical Area / Quasar Zaccaria

« on: September 07, 2014, 09:51:13 AM »

I'm trying to repair a Quasar Zaccaria pcb.

I applied my fluke 9010th with adapter for 2650 and I did the bust test.
The fluke reports the data bit 1 tied high. Looking at the schematic I see that the 74LS244 position 3G could be responsible and not knowing how to work around this problem I removed it.
As a solution I do not absolutely love it and I would like to understand how to test the bus without removing it.
The same problem I had also met in Astro Wars. Someone would help me to understand?

3

Technical Area / Zaccaria Astrowars Audio PCB

« on: August 23, 2014, 02:57:09 PM »

Just finished to make a perfect repro of ZZZ Astrowars Audio card on Coreldraw.

Now I just need to transform the files in Gerber and excellon formats for PCB production.

Can anybody help me please?

https://dl.dropboxusercontent.com/u/34851970/Audio_Astrowars_Zaccaria.CDR

4

Technical Area / Super 21

« on: July 15, 2014, 06:09:01 PM »

Hello everybody,

from my old collection I found a Super 21 Mirco Games PCB. Unluckily some ttl is missing and no silk screen. I searched for a service manual or at least a photo but with no success.
Because in Mame is pefectly emulated, somebody must have at least one running.
Anybody can help me?

https://dl.dropboxusercontent.com/u/34851970/VG1-21.JPG

5

'Business' Area : Buy/Sell/Trade / Fluke 9010a Option 1

« on: June 26, 2014, 01:50:55 PM »

On these days I developed a serial interface for Fluke 9010a because the one I had purchased it was without.
I wanted to have both USB a classic RS232C.
The nice thing is that they can run both and any setup or switch is needed.
here you can see a video: http://youtu.be/uunibnFOJJg
Since I had to print 10 circuits, if anyone is interested they are on sale at € 20 each

6

Technical Area / Astrowars Zaccaria Audio Board Repro

« on: April 16, 2014, 01:01:15 AM »

I made an exact copy vector file of pcb audio board from Vanguard Zaccaria.
I would like to convert file from CDR to Gerber and NCDrill.
Gerber files must be RS-274x format.
Anybody can help me?

7

'Business' Area : Buy/Sell/Trade / WTD: Fluke 9010a

« on: April 16, 2014, 12:17:53 AM »

As the title I'm searching for a Fluke 9010a with RS232 option and pods at honest price...

8

'Business' Area : Buy/Sell/Trade / 2708 / 2704 Eprom Programmer

« on: February 03, 2014, 09:21:08 AM »

Hello everybody,

I just finished setting up a prototype USB EPROM programmer for 2704 2708.

PC program is not finished yet and will be on these days.

I thought of making some copies. The eventual sale price is € 100. Someone might be interested in?

9

'Business' Area : Buy/Sell/Trade / Searching for Zaccaria Astrowars Audio PCB

« on: November 29, 2013, 11:01:32 PM »

I'm searching for audio card assembly CEC-045

10

'Business' Area : Buy/Sell/Trade / Dodgem Zaccaria

« on: November 10, 2013, 02:04:39 AM »

I'm searching for a Dodgem Zaccaria Control panel and marquee in good conditions.

11

Artwork / Dodgem Zaccaria

« on: November 10, 2013, 01:49:39 AM »

I'm searching for a Dodgem Zaccaria Control panel and marquee.
Vector files could be perfect but even some nice photos could be ok.
The cab belongs to a friend of mine...

12

'Business' Area : Buy/Sell/Trade / For sale: New Tubes BW A50-120W

« on: October 06, 2013, 09:30:59 PM »

For sale four tube NOS suitable for most BW games, vector and raster.

Price 75€ each + shipping

13

Technical Area / Mueter BMR95 adaptor

« on: July 16, 2013, 08:24:09 AM »

Hi everybody!
I bought a Mueter BMR95 CRT regenerator which come with 8 adapter but miss one I need

#801 for B/N tubes.
I didn't find any connection schematic on Internet. Even on andysarcade start from #802.

Anybody can help me?

14

Arcade Lifestyle / Space Attack restoration

« on: June 30, 2013, 11:28:06 PM »

Among the various restorations in progress there is a Space Attack by Bertolino's brothers under Sega license...

The conditions are definitely not among the best: (

The shells of nuts make sense the presence of a squirrel, but why so many bones?

Power supply and the sound card that were lying on the cab's bottom together the mysterious animals nest, are not in good health ...

While the main board standing on the side is a little better ...

Better to cleanup and we will see what's happen

Better but not enough ... unfortunately some tracks and many components suffered too much!

I made a decision: remove all the components on pcb and wipe it well.

Although the card isn't too complex, still takes time and many photos as there is no silkscreen and many last minute corrections, components placed on the track side, jumpers and cutted tracks.

While I'm waiting for components to replace on the sound card, I done power supply cleaning and recap, which survived the rodent better than sound card.

Let's move to the main board.
It has many ic's legs oxidized so disassembly all of them an put on sockets

Connect the power supply and switch it on ... The video comes out but the trusty Amiga monitor does not hook the sync : (

better to see with the oscilloscope

18Khz instead 15.625 !!

Checking the xtal I discover that instead of 15MHz as shown in the schematic has been used one at 18 MHz!!

Damn! How do I see a videocomposite 18KHz?! I need to fix his monitor ...

The chassis is not in good shape ...

img]http://imageshack.us/a/img195/3968/hkmi.jpg[/img]

clean clean clean…