Is this a Gotlieb or aftermarket Qbert PCB?

[jrok]

So these boards are basically a complete clone of the wiring schematics on the Gotlieb PCBs?

I've not traced the whole board, only enough to fix one and for the coin meter/knocker, but it does appear to be a very close clone.

Do you have any boards with the knocker?

No, I have 4 boards to hand and all lack the transistor.

Did the clone-maker of these boards provide a knocker option?

They could have, there is the support for it, but it doesn't look like they even implemented the coin meter support so it would seem to be unlikely.

- James

 

[Level42]

Of course, all this is futile once Jrok releases hit Multi-Mylstar

Interesting stuff...

 

[priglmeier]

battery or battery backed ram mod?

So do you have the battery backed RAM mod on these boards JROK?

If I just do the battery, who is the cheapest source?

What would be the minimum parts needed to make a knocker for these boards?

 

[Riptor]

So do you have the battery backed RAM mod on these boards JROK?

If I just do the battery, who is the cheapest source?

What would be the minimum parts needed to make a knocker for these boards?

I can build your one. I built the one thats in my QB cab.

 

[priglmeier]

Up and almost running

I have the new RAM installed along with the sound chips. I can power on the game and get the TEST screen. The problem is I only get the test screen. I can use the service button which is mapped to the qbert select switch to do a demo if I continue to hold down the button. The joystick appears to do nothing.

See the attached screenshots. Is this because I don't have a battery installed on the PCB? The DIPs are set correctly.

 

[priglmeier]

progress

Ok, I got a better pinout map with some notes. There is a test mode that has to be grounded at all time to be normal. Odd. I changed that and now I get the normal mode when the game powers on.

Still no ability to start a game though. The saga continues...

 

[Riptor]

Yep, the test switch is normally closed. Sounds like you need to find the credit pin.

 

[priglmeier]

Wiring

I wired the coin pins, start buttons and player start buttons. The joystick is also wired. The DIPs are set for freeplay and normal mode so I should be able to start a game. Hmmm?

 

[priglmeier]

How do I know which board I have? knockoff #1 or #2?

I just noticed another page with different pinouts. this might explain the issues I'm having. I have good video, but no sound or the ability to start a game yet. I was checking my JAMMA adapter wiring and decided to look up the pinouts again. Now I have several options:


==========================================================================
Q-Bert Bootleg 1
----------------

component side solder side
-------------- -----------
GND 1 +5V
GND 2 +5V
GND 3 +5V
+12V 4 +12V
(-12V) -5V 5 -5V (-12V)
6
AUDIO OUT 7
8 TEST MODE*
9 SELECT SW
1P START 10 COIN 1
2P START 11 COIN 2
1P UP-LEFT 12 2P DOWN-LEFT
1P DOWN-RIGHT 13 2P UP-RIGHT
1P DOWN-LEFT 14 2P UP-LEFT
2P DOWN-RIGHT 15 1P UP-RIGHT
VIDEO RED 16 VIDEO SYNC
VIDEO BLUE 17
VIDEO GREEN 18
19
GND 20 +5V
GND 21 +5V
GND 22 +5V

* TEST MODE SWITCH - GAME MODE TO GND., TEST MODE TO OPEN



Level | Round | Disks | Charakters on screen | Bonus |
------+-------+-------+---------------------------------------------------------+-------+
| 1 | 2 | Red Balls, Coily, | 1000 |
1 | 2 | 2 | Red Balls, Coily, | 1250 |
| 3 | 2 | Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 1500 |
| 4 | 2 | Red Balls, Coily, Green Balls, Slick/Sam | 1750 |
------+-------+-------+---------------------------------------------------------+-------+
| 1 | 3 | Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 2000 |
2 | 2 | 3 | Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 2250 |
| 3 | 2 | Red Balls, Coily, Green Balls, Slick/Sam | 2500 |
| 4 | 2 | Red Balls, Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 2750 |
------+-------+-------+---------------------------------------------------------+-------+
| 1 | 4 | Red Balls, Coily, Green Balls, Slick/Sam | 3000 |
3 | 2 | 4 | Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 3250 |
| 3 | 3 | Red Balls, Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 3500 |
| 4 | 3 | Red Balls, Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 3750 |
------+-------+-------+---------------------------------------------------------+-------+
| 1 | 6 | Red Balls, Coily, Green Balls, Slick/Sam | 4000 |
4 | 2 | 6 | Red Balls, Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 4250 |
| 3 | 5 | Red Balls, Coily, Green Balls, Slick/Sam | 4500 |
| 4 | 4 | Red Balls, Coily, Green Balls, Ugg/Wrong Way, Slick/Sam | 4750 |
------+-------+-------+---------------------------------------------------------+-------+
| 1 | 7 | | 4750 |
5 | 2 | 6 | In Level 5 all characters will | 5000 |
| 3 | 6 | appear in each round | 5000 |
| 4 | 5 | | 5000 |
------+-------+-------+---------------------------------------------------------+-------+
6 | 1 | 5 | | 5000 |
Thru | 2 | 5 | All characters will appear in each | 5000 |
9 | 3 | 5 | round in level 6 thru 9 | 5000 |
| 4 | 5 | | 5000 |
------+-------+-------+---------------------------------------------------------+-------+

Dip sw.
-------

1) ON...............Infinite Lives
OFF..............Normal Play

2) ON...............No Sound
OFF..............Sound

3) ON..............Free Play
OFF.............Normal Game

4) ON..............Table
OFF.............Upright

5, 6, 7, 8 .........NOT USED


===========================================================================================
===========================================================================================

Q-Bert Bootleg 2
----------------

component side solder side
-------------- -----------
GND 1 GND
GND 2 GND
+5V 3 +5V
+5V 4 +5V
+12V 5 +12V
-12V 6 -12V
Coin 7 Coin
1P.Start 8 2P.Start
1P.Right-Up 9
1P.Left-Up 10
1P.Right-Down 11
1P.Left-Down 12
Select sw. (Test) 13 Test sw.
14
15
Knocker 16
VIDEO BLUE 17 Red
VIDEO GREEN 18 Sync
19 Speaker
20
GND 21 GND
GND 22 GND

* TEST MODE SWITCH - GAME MODE TO GND., TEST MODE TO OPEN

Dip sw. Pos C15
---------------
1 2 3 4 5
---------------------------------------
Sound + ON
- OFF
Knocker - OFF
+ ON
Mode + Table
- Upright
Adwance + ON
Rounds - OFF
Mode + Free Play
- Normal

 

[priglmeier]

qbert bootleg 1

It is definitely a bootleg 1 board after checking the pinouts. I checked the voltage and it was a bit low. Now it's right on.

So could it be the voltage for the:

parts side (-5V) -12V PIN #5 (-5V) -12V solder side???

JROK how did you work this with the board you have and a JAMMA adapter setup?

 

[jrok]

It is definitely a bootleg 1 board after checking the pinouts. I checked the voltage and it was a bit low. Now it's right on.

So could it be the voltage for the:

parts side (-5V) -12V PIN #5 (-5V) -12V solder side???

JROK how did you work this with the board you have and a JAMMA adapter setup?

Yes, I have a JAMMA adapter for it. It's attached to a board that I can't find right not
I'll see if I can dig it out for the pinout.

Pretty sure I just ran -5v instead of the -12v.

- James

 

[priglmeier]

Qbert Bootleg JAMMA adapter

That's what I have as well.

After I get this working I will provide my JAMMA adapter map pin for pin unless someone else posts it before me.

I checked the voltages an either I get low on the 5 volt or high on the 12 volt. I have tried it both ways with no positive result.
What are the 2 adjustment pots for on the board? One is probably sound, but what is the 2nd one???

 

[priglmeier]

Verification

I verified the issue with another qbert bootleg pcb. No sound, no coin up and no start!!!

The problem is I don't see another direction to go in to fix this or ???

 

[priglmeier]

Another version of the Qbert "Cuit Bird" aftermarket board

Check out the second board I have. I has the same basic design, but there are some missing chips. Not sure what those white things are even called?

AND the label on the PCB is "Cuit Bird Made in Japan"

 

[jrok]

Check out the second board I have. I has the same basic design, but there are some missing chips.

Those are the chips used for the speech circuitry. Which doesn't seem to be populated on these boards.

Not sure what those white things are even called?

Those are the sprite control RAMs, position & sprite #. They are MB7063's on one of my boards and 82S09's on another. The original Mylstar schematics show them as 93419's.
Equivalent location on the schematics is E4, E1-2 , E2-3.

I'll check out how the sound is wired today.

- James

 

[jrok]

I verified the issue with another qbert bootleg pcb. No sound, no coin up and no start!!!

I checked on my board to be sure, the pinout appears to be correct
component side

pin 4A = +12v for the audio AMP
pin 7A = speaker output, other side of the speaker should just got to GND

pin 5A = -5v is not needed for the audio amp, it's only used for the speech circuits

- James

 

[dezbaz]

I was where you are now a few years ago (I have 4 of these boards and 3 work)

my page is here

http://www.dsbelec.iinet.net.au/Qbert-Bootleg-1.htm

Andy arcade has one of these with working sound, he also made the sync mod

get in contact with Andy for more info

James and Andy are the 2 gurus by the sounds of it

Cool thread!

 

[priglmeier]

qbert

Thanks. I am very interested in these bootleg boards. They have some interesting qualities and seem highly collectable. I will be posting a lot of the info from this thread and other places on my website: www.priglmeier.com/game

 

[priglmeier]

No sound no controls

This is turning into shear madness!

I have 2 bootleg boards and neither has sound or lets me start a game.

The JAMMA adapter looks sound and I have gotten second opinions or it. It seems that there are very few options here:

There is something different about the pinouts for these PCBs?
BOTH boards have bad audio?
BOTH boards have bad control circuits for start, coin, and controls
I am crazy.

Send me a picture of your qbert bootleg JAMMA adapter both sides please?

 

[priglmeier]

some progress

I have sound now...

BUT no coin, start or controls???

We are getting closer!

Here is my JAMMA adapter (attached)