5 replies to this topic

[gjasmith]

Hello,

 

You would not believe how much help I've had from these forums without even posting! :-)

 

The back story is that I bid on an old Crazy Capers on ebay on a whim and won it for £2.

 

Having collected it, it had obviously been very damp, PSU, MPU4, reel optos, lamp board and even the cabinet were all damaged.

 

I already had a MPU4 Red Hot Fever and 2 spare (MOD2) MPUs so that helped a bit.

 

PSU is now working, reel optos replaced, lamp faults fixed and even the cabinet has had an overhaul!

 

I now have the entire guts of the machine laid out and working from one of my old MOD2 boards but there is no sound. There are 2 speakers, one next to the coin mech and one at the payout, neither give any sound, do I need to use an MOD4 board beore I get sound or should the program card still output sound?

 

I've been using "MPU Faults V0.3" (which I think was from Booze) to repair the original MOD4 board but some of the battery track fault information near the bottom seems to contain errors, I'm pretty sure this is all thats wrong, the two connections from IC3 to R111/R112 were both broken and have been fixed, IC8 pin 19 to R113 is good but it mentions another IC8 pin (no number) which goes to D1 and IC3 pin 2 which should also go to R111!?

 

So the question, being that this file appears to contain errors, does anyone have a list of points which should be checked and jumpered for the tracks around the battery?

 

I know I can trace them all back but a list of test points would be handy! :-)

 

Thanks.

 

Gordon.

 

[TommyC]

Not sure on The tech docs but i do know you will need a mod 4 board in order for the sound to work.

[gjasmith]

Thanks, will concentrate my efforts on getting the MOD4 to boot then.

[aaamusements]

Just to clarify, mod 2 has the Yamaha sound chip on board, mod 4 is later and has the sound on the separate plug-in combined t-shape ROM/sound card.

Mod 2 should be forward compatible.

[gjasmith]

Yep, with the mod2 board there was no sound (despite the fact that the speaker wires come from the program card).

 

I finally managed to repair all the battery damaged tracks on the mod4 board though 

The sound worked but was noisy, getting worse when I move my hand near VR1 so I swapped it for the one from the mod2 which fixed it, it doesn't control the volume though, the program card controls that.

 

I also found someone who had posted a list of tracks he had to repair (although I can't find the post again to credit him) and using this as starting point made a small list of points worth checking which hopefully might help someone out.

 

 - Battery + side to R72
 - Battery - side to Ground (pcb underside)
 - Battery - side to C47

 - C47 top to T20 (E)

 - IC8 pins 10-18 to RU7 Pins 1-8 (payouts)

 - ZD26 to RU7 pin 1
 - ZD27 to RU7 pin 2
 - ZD28 to RU7 pin 3
 - ZD29 to RU7 pin 4
 - ZD30 to RU7 pin 5
 - ZD31 to RU7 pin 6
 - ZD32 to RU7 pin 7
 - ZD33 to RU7 pin 8

 - ZD34 to IC8 pin 19
 - ZD35 to IC3 pin 39
 - ZD36 to IC3 pin 19

 - IC23 pin 1 to IC7 pin 39
 - IC23 pin 2 to IC4 pin 39

 

[No1Stoney]

There is a wealth of information on here: http://www.booze.net

 

the fault finding flow chart is particularly helpful