No Disp" flashing on credit meter

[slots4home]

I have this problem.
I have replaced the IO board, Vacuum board and the display and stipp get the No display.
When you first turn on the display shows for about 30 seconds and goes blank.
any suggestions?
thanks
Darell

[Yoeddy1]

Hey Darell,

This is going to sound "way out in left field", but I can reproduce this exact behavior with certain DSV SIMM's.  Which game do you have and if you remove the DSV SIMM and MML2 board, does the problem go away?

When it's blank, is the game still functional or is it not working at all?  Do coins or bills register?  If the above doesn't change anything, does a different MPU or power supply change anything?

Thanks,
Jason

[slots4home]

Jason,
The machine is still functioning. I have replaced the mpu board  and also removed the light board. Also replaced the power supply.
the game is quack shot.

[slotsteve]

we have lepoard claw doing same thing  , i ours won,t setup it can,t take coins /bills, we done a few clears but still nothing  once the left display goes blank the right side flashes no disp

[slots4home]

 I also replaced the top box power supply
Same thing. It comes up at first but goes blank after a few seconds

[blueridgeslots]

You are probably using a 5-5-2 display and either using too new game chips and/or have too many credit digits trying to display, common on 5 reel games not the Quack, try a 6-6-3 display

[Neonkiss]

You are probably using a 5-5-2 display and either using too new game chips and/or have too many credit digits trying to display, common on 5 reel games not the Quack, try a 6-6-3 display

I have some, if you want to try it.
http://www.ebay.com/itm/120979894845?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
If it dosen't solve your problem you can return it. Just pay shipping.

[slotsteve]

mine is a 5 reel game that sounds  a good reason  tue i,ll check what display is in it

[Foster]

If the player display (7-segment) is showing "no disp" that means the VFD controller is not communicating with the machine (has nothing to do with the 7 segment being a 5-5-2 or 6-6-3)
if the 7 segment does not match the machine config you will see "Display Type Mistmatch" on the VFD

[blueridgeslots]

If the player display (7-segment) is showing "no disp" that means the VFD controller is not communicating with the machine (has nothing to do with the 7 segment being a 5-5-2 or 6-6-3)
if the 7 segment does not match the machine config you will see "Display Type Mistmatch" on the VFD

Yes it will, seen it and fixed that, not talking about a wrong setting (mismatch), trying to put too many digits in a 5-5-2 will cause it, such as tokenizing to small denoms, also wrong VFD software (too old) could cause it to I guess if newer GME chips

[slots4home]

I installed 198 gme chips and it still does not come up
I came with 523 and it did not work with those.
I have just about changed everything with no.luck
Thank you all for your help
Will keep.trying
Darell

[slotsteve]

our leopard claw  has no disp on right side
it has a 6 6 2 display
sb10168
sg 000597
dspl0002
ver
vs011gx1
done clears and key but won.t go past the no disp
hints?

[Foster]

what does the VFD show on it?

[slotsteve]

in begining goes thur reg stuff  then goes blank and right side lights says  no disp , i have more hour  in this game then last 15 i did

[Foster]

try a different VFD in the machine also make sure the wires to the VFD are being pinched in the door hinge as well.

I am going to change the denom on mine as test to find the exact message displayed when credits are larger than a particular display size

The 7 Segment will put Cdisp. if the number of credits is greater than what the display can show correctly. see the attached picture
I changed the player 1 denom to 1 cent and inserted a ticket valued at $14,700.00 now if I pick another denom on the touchpad then the display shows proper credits.

[slotsteve]

i looked at wires    my display goes the long way  across  6 6 2 all in 1 row i know i had 1 game that asked me which display it had and i was able to set it up this one won,t go past the no disp

[Foster]

Is the VFD hardware one or two boards?
the 2 board version has the interface/driver mounted on the door panel below the display.

[slotsteve]

2 boards

[Foster]

what version is the chip on the driver?
I suspect if it is not VFD00007 or newer it not going to work with those game chips

[slotsteve]

where do i find that chip? so i can read numbers?

[slots4home]

some how it went from my post to slot steve.
but I replaced mine with a newer game chips and a 6 6 3 display and do not get any display with the 6 6 3 but if I put back the 5 5 2 it comes up for a few seconds and goes away i do hace the 007 chip on the display

[slotsteve]

where would that 07 chip be located ?  i was hoping either you are i would find out  why we are getting the no disp , i have  spent way too much time on this slot, and got no farther than i was when it came in, lets hope both of us get these going

[slots4home]

the vfd00007 is on the board with the white cover over it mounted to the panel

[slotsteve]

thanks i,ll check mine on weds, i got fingers crossed , just hope i have  right chip in one of the junkers

[slots4home]

it sounds like both of ours are doing the same thing.mine is a 3 reel
could it possibly be the mother board ?
that is the only thing i have not replaced