not returning record after play

[sock]

ok I've identified it.its a Reed relay I'm going to get another board and see if I can fix this one and keep it as a spare

[sock]

amendment k401is there k403 is missing

[sock]

just looking over the board it's been messed with the switch as been removed the red button as been removed c416 as been changed it should be the same as c419 but it's not so who knows what's been done to it

[jukenorman]

I can see these reed relays in the parts list but I don't seem to be able to find them on the large schematic - I must be looking in the wrong place!

Norman.

[jukenorman]

I had another quick look at this. The reason that they are not noticeable on the large schematic is because they are not identified by their tag number! I also think that there are probably different versions of the logic board that have minor differences and I suspect that there is a version where there is no K403 (or K402 for that matter)! On the few machines of that type that I have worked on, nearly all the logic type issues I have had have been with the profit setter and I know that there are at laest two versions of it - although they seem to be interchangeable.

I know that probably doesn't help you much. But I think if you fault find the logic that is keeping the coil of the latch relay energised and the index LED lit, that you might well find that it will work OK despite K403 being absent.


Norman.

[sock]

yes Norman I agree the missing reed valve is connected to the other missing components but as I said the board has been messed with im just bidding on another board so fingers crossed

[sock]

ok it's now doing my head in im going round in circles so as of sequence 13 when the record is found a high signal at pin 19 I have the high signal ,this turns on q406 and that drives q306 to energizer the latching relay this then stops the basket and then starts the gripper motor this is when I believe the index led should go out and denergize the relay but it doesn't pin 19 is still high if I flick the power on and off pin 19 goes low and the relay also goes off ive removed q406 and it tests good so put it back now I'm stuck I didn't get the other board and if I buy a new board and it's the same I'd be pissed I also ran a logic board test and it's the same so I'm out of ideas

[jukenorman]

No, you're not out of ideas lol - the idea you need is to study the manual! What I think you should do is when the gripper starts to move and micro switch 1 operates, is to stop the mechanism and fault find the logic in sequence 14. If you look at sequence 14, you will see that pin 19 does stay high (you are misleading yourself by assuming it should go low). When micro switch 1 operates, it energises the reed relay K401 etc - this is the part to fault find. The logic states are shown on the schematic. Onwards and upwards - you will get there!

Norman.

[sock]

ok today is a new day so yesterday I stopped it just as the gripper arm started to move micro switch 1 I checked the throw with the cables removed and switch was correct also rechecked the cables put the wires back on and rechecked put what was strange was the wire that I was still getting a reading off both the nc and no to the common

[jukenorman]

I'm not sure that I fully understand your last post. Micro switch 1 must be changing over, otherwise the magazine motor would keep going (Edit - actually that statement is incorrect because the magazine motor is dynamically braked by K301 before micro switch 1 changes over). Does it then energise the reed relay K401? Or can you measure 32VDC at K401?

Norman.

[sock]

sorry Norman what I meant was I stopped the mech as soon as the index led came on to test switch 1 with the leads taken off the switch the switch had switched over as it should when I put the leads back on I get continuity between the common and both leads I'm going to check voltages now

[sock]

oh well 1 step forward 10 steps back so I stop the mech at the index point can't find anything I then realise that when I stop the mech what ever the fault is goes away so I have to keep it live so to speak so I have my volt meter on the go logic probe next thing I know is the profit setter as now gone haywire I've reset it but I may have some how fried it looking for this 1 small fault that is now a big problem looks like im going to have send the profit setter off for repair

[jukenorman]

Have you checked the 9.6VDC - pink wire on the plug from the power supply? If that voltage goes high, that screws up everything and the profit setter no longer functions.

Norman.

[sock]

1st thing I checked 9.62v stable on 2 different meters the profit setter was running ok now it looks like the program is scrambled it was randomly selecting records and the index was still staying on ffs the problem is in the logic board and now I have fried the profit setter happy days I get there

[jukenorman]

I fried the profit setter seems like a bit of an extreme statement! There's a test procedure in the manual, have you run that? Apart from that, how does it respond to inputs like the add and subtract credit butttons, the coin switches and the selection buttons? Are there credible responses to these inputs? There are also previous posts here covering these sorts of issues. Another general point, these jukeboxes are very prone to bad solder joints especially at the connectors. I have mainly found this with the amplifiers but have seen posts elsewhere suggesting that the profit setter and logic boards are also vulnerable and since the construction is similar, I could easily envisage that.

Norman.