[Jul/07/2004]

MONZA GP From Leante Games (Olympia)


Possibly has clk/dir type steering.

Shows RB BO ITALY on the title screen and is a top-down driving game, 
a lot like monaco GP, it even has stages where you have headlights.
Board colour, screening, track patterns, and most importantly 
component type and colour of sockets indicates to me a pcb made in 
the same factory as 'Sidam' and some 'Olympia' games. There is no 
manufacturer name, no game name, all i see is : AA20/80 etched 
on the underside of the pcb.

I have had this pcb for a number of years, i always thought it was 
some sort of pinball logic pcb so didn't treat it too well. When it
came to clearing out my boxes of junk i took another look at it, and 
it was the bank of 4116 rams that made me take a closer look.

I hooked it up and saw some video on my scope, then it died. 
The +12v had shorted.. Suspecting the godamn tantalum capacitors 
(often short out for no reason) i found a shorted one, removed 
it and away we went. It had seperate H + V sync, so i loaded 
a 74ls08 into a spare ic space and AND'ed the two signals to get 
composite, voila, i got a stable picture. The colours aren't right, 
and maybe the video isn't quite right either, but it worked enough 
for me to realise i had never seen a game like it, so i dumped it.

I couldn't get any sound out of it, could be broken, or not 
hooked up right, i would suspect the latter is the case.


Hardware : 
==========
2x  z80's
1x  AY-3-8910
1x  8255
2   pairs of 2114 RAM (512 bytes each)
16x 4116 RAM (2k each)
4x  2716 (ROM)
12x 2708 (ROM)


ROMS layout: 
------------
(add .bin to the end to get the filenames)
YC,YD,YA and YB are all 2716 eproms, everything else is 2708's.

(tabulation used here, see photo for clarity)

YC	YD		XX
YA	YB
			XC
		XI	XM
		X-*	XD
		XP	XS
		XA	XE
		XR	XO

* denotes a rom where the label had fallen off.. so its X-.bin

-

[Jun/04/2007]

Monza GP  
Made in Italy  

CPU
Upper board (MGP_02):
1x Intel P8035L (HMOS Single Component 8BIT Microcontroller - no internal ROM - 64x8 RAM)(main)
1x National DP8350N (Video Output Graphics Controller - CRT Controller)(main)
1x oscillator 10535  

ROMs
Upper board (MGP_02):
6x 2708 (10,11,12,13,14,15)
1x PAL10L8MJ

Lower board (MGP_01):
9x 2708 (1,2,3,4,5,6,7,8,9)(position 2 is empty, maybe my PCB is missing an EPROM)(EPROM 9 is bad)
5x MMI63S140N (1,3,4,5,6)
2x DM74S287N (2,7)
  
Note
Upper board (MGP_02):
3x 10x2 legs connectors with flat cable to lower board
1x 8x2 dip switches

Lower board (MGP_01):
3x 10x2 legs connectors with flat cable to upper board
1x 6 legs connector (power supply)
1x 20x2 legs connector for flat cable
1x trimmer (TIME?????)  

Funzionamento: Non testata  
In vendita: No 
 
Dumped 17/03/2005

-