80 replies to this topic

[sgandtg]

Hi

Just bought Austin Powers and everything plays ok. There are quite a lot of lights out & I'm trying to get it into test mode to see exactly which lights are blown.

I've got 2 machines (Neptunes Treasure & Austin Powers) both are mpu5 but I can't get austin to go into test mode. I've opened the front door to access the test button but all it does is put £12.50. Doesn't matter how many times you press it or even keeping your finger on it.

Any ideas?

[kensplace2]

Look inside the cab, you may have to lean inside, or look up from the cash door, you are looking for a second switch, its not in view, so you will have to look for it. Try on the hopper side, little bit down below the reel shelf, have a good look for it, one will be there somewhere.

Press that, hold it, then press the test button, release test button, then press it again. Now release the other button.

You should be in test mode now.

[sgandtg]

Yep, found it & managed to get it in test mode.

That was the good news. Managed to change all the bulbs that needed replaced and then closed the door.

Now I'm getting an alarm 54-28
no 24v drive
opto

The fuse on the psu has blown. I changed the fuse and it has blown the new one.

Any ideas? - I don't have another fuse to try anything else so I'm stuck until tomorrow. Why do things like this happen just 2 minutes before B&Q closes?

[kensplace2]

Which fuse is blowing, and which voltage led is off?

[sgandtg]

+34 (looking at it from the front, it's the one on the left hand side of the psu)

From left to right (while looking at them) The led's show 3 lit greens, then 1 not working and then a flashing green and then a red light (which isn't lit)

[kensplace2]

34v for the lamps, so it looks like you may have a short on the lamps or connectors/wiring somewhere.

Check all the bulbs you replaced, look for anything shorting together, or to the metalwork.

Check all connectors are firmly in place, and that nothing is shorting out,
also check the mux boards, that the lamp wiring plugs into, make sure
there connectors are in, and nothing is shorting against them.

Could be something else, but thats where I would start.

[sgandtg]

Can't see anything that could be causing it. I tried taking out the last bulb I had put in before the fuse went but it still blew the new fuse (I took the other 2 fuses out of my other machine - so I've now got two machines that aint working).

Thanks for helping Ken, I'll get fuses tomorrow and then try again tomorrow night.

is there anything else that could cause this?

[kensplace2]

Unless its a faulty psu blowing the fuse, or the fuse fitted was of the wrong amperage (which could have survived before, if lots of bulbs were out,
but now has not powerful enough now you have replaced all the lamps) the main thing I can think of is something is shorting the lamp supply to ground/earth or possibly one of the mux boards has died. Possibly incorrect bulbs (wrong voltage or wattage causing to much load) could cause this, but not sure. Check to see if the bulbs you are replacing are the same as the new ones, 12v same wattage.

If you look at the mux boards, they have fuses on also, and two leds, one should be lit for 34v (which if there is no 34v then it wont be lit.....) and the other is a status led, which should be flashing if all is well.

Course with no supply, both could be off.........
Double check all the wiring, follow it through all the lamps if need looking for stray wires, or a loose lamp holder etc.

[skabaz]

were any of the bulbs you replaced behind the mux boards on the top glass??

if so then one of the bulb holders may be shorting out on the back of the mux board.

i very much doubt its the power supply.

also i'm a bit confused with the error details ...did it say there was an opto error.

you may just have a jammed or faulty hopper thats not allowing the machine to power up the bulbs due to all the power going to the hopper.

baz

[sgandtg]

the lcd changes from "alarm 54-28" to "no 24v drive" to "opto" and then it repeats.

Doesn't say opto error, just opto.

I'm assuming that the mux boards are the two circuit boards above the number real (behind where the features are offered)? I didn't remove these boards although I did change a bulb right beside them so it is possible that I have nudged the boards and this is where the problem could be. thinking back, that bulb was the last one I replaced so it kinda points to something behind these boards.

I'm no expert (more of a f*ckw1t to be honest) but if it was to do with the hopper, surely a different fuse would have blown.

[Bencrest]

Just a guess but I would assume that 24v and Opto would suggest maybe a number reel on the top glass, could be Reel Opto?

Not an error I've come across, but did you have to change any lamps on/around the number [hi/lo & feature] reel?

[kensplace2]

Maybe something is tripping the 24v fuse also, and thats what the machine is reporting. The 24v fuse for the hopper payout is not a glass type fuse, its a poly-resetable whatdjamathingy (didnt even know they existed till I just looked it up) on the mpu board that blows, then once the fault is fixed, and the fuse (which looks nothing like a normal fuse) has cooled down, will fix itself, so no need to worry about replacing that fuse if it blew.

Course just need to find out what the actual problem is, what shorted, or faulty thatis causing the 34v to blow and the other error to pop up. Maybe the 34v for the lamps is shorted to the hopper cabling or something.

[Zoltar]

Whatever you do, always replace a fuse with one of the correct rating. NEVER put a nail across the fuse holder (as I found on my Jackpot 7's when I got it).

You can tell if the fuse should be a low voltage one or a high voltage one.....

If you 'lick' the fuse holder whilst theres power and you sort of start to slaver and tingle, it's probably 24v. If on the otherhand you violently convulge, vomit, empty bowels, hair curls ect..., it's probably a good call that it was a 240v fuse.

You could just get a multi-meter though.




To test the fuse. Not to lick.

[kensplace2]

I have visions of someone only reading down to the lick the fuse part, trying it before reading the rest of the post then dying a painful death....
The fuse should have a rating written on it.
Interesting link
http://slot-tech-ftp.../december02.pdf
which covers fuses - AND covers how to test for a possible fault after
a lamp short has blown the fuse, so you can just replace the blown part
rather than the whole board.

Thats if it is a lamp fuse, if as suggested earlier you get a multimeter, you could check for shorts on each bulb holder in turn I guess

[sgandtg]

I could only manage to get 2 new fuses today as the shop didn't have any more than that.

According to the manual for my other machine (which is mpu5 also), alarm code 54-28 means:-

54 is mux not reset
28 is a hardware fault on the mpu5 board (most of these alarms are generated during power up self-test)

Is it a good idea to remove all bulbs and try switching it on? and assuming it doesn't blow, put in say 10 bulbs at a time to see if it still works?

[sgandtg]

The machine still plays if you open the front door, you get £12.50 worth of credits. But, nothing lights up. Also, I tried to dump the hopper but the same error message came up & the fcuking thing has £125 in the hopper that I can't get out!!!!

[sgandtg]

If I take out all the sockets from the boards that are connected to the lighting, would the fuse still blow? I'd leave all the other connections but would if i did this and the fuse didn't blow, it would tell me that it was the bulbs rather than anything else.

[kensplace2]

Sounds like a good plan, unplug the mux boards, then see if the fuse still blows when you power up.

Then power down, plug one in, power up and see if the fuse blows. If not, that board, and set of lamps is ok, then try the other board.

[sgandtg]

Took out all the connections to/from the two mux boards. still blows the fuse.

What does this tell us? (apart from I have no more spare fuses - looks like I'll be raiding the 3 fuses from neptunes treasure)

[Bencrest]

Hmm, Dangerous Dave over at Fruit Forums says a CPU Bus error hence a new MPU5 board