Author Topic: Q*bert, just some pics  (Read 16419 times)

level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #15 on: June 11, 2015, 11:59:50 AM »
I updated my reply, please read it again :)

level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #16 on: June 11, 2015, 12:03:58 PM »
Good....in return, can you check your coin counter for me please ?

I need to know its specced voltage and type number would be nice. Also, if possible, have a look which wire goes to the plus and which to the minus, both wires from the counter itself will probably be black, but there are two holes in the bracket so one is on top and the other on the bottom. I have no idea if polarity is important with coin counters though.

joeks

  • ArcadeLifeStyler'
  • ***
  • Posts: 536
    • View Profile
    • Arcade Art Repro
Re: Q*bert, just some pics
« Reply #17 on: June 11, 2015, 01:51:02 PM »
Power it up without anything connected first and check voltages.

That's actually a smart idea :)
Have to remember that.

PS. I have step-down converters for all my cabs. Might have to consider doing some 110-230 V conversions instead.
Makes Arcade Artwork Reproductions at www.arcadeartrepro.com

ckong

  • ArcadeLifeStyler'
  • ***
  • Posts: 3177
  • The Netherlands
    • View Profile
Re: Q*bert, just some pics
« Reply #18 on: June 11, 2015, 02:13:45 PM »
I'm ready to power the game up, running on 230VAC, but it is indeed smart to first check all the voltages.

However, where can I find the pin diagrams for A12-p1, A12-p5 and A12-j2 (the 3 plugs on the power brick)? I know, a smart guy can probably read the the diagrams in the manual and figure it out, but I can't (other smart guys know how to read financial balance sheets, P&L's, cash-flow statements, etc.  ;) ).

Etienne MacGyver

  • ArcadeLifeStyler'
  • ***
  • Posts: 7611
  • The Netherlands
    • View Profile
Re: Q*bert, just some pics
« Reply #19 on: June 11, 2015, 02:21:58 PM »
Page 20 of this doc should get you there  ;)

http://gamesdbase.com/Media/SYSTEM/Arcade//Manual/formated/Q-bert_-_1982_-_Gottlieb.pdf

These are the numbers of the pads on the secondary side of the transformer.

« Last Edit: June 11, 2015, 02:32:49 PM by Etienne MacGyver »

level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #20 on: June 11, 2015, 02:44:49 PM »
Have a look at that manual and you will find the secret color code combination.....those three digit numbers mean color codes of the wires used :)

It's even better to measure at the 2 output connectors. In that case you know it's good until the "end" of the power supply.

ckong

  • ArcadeLifeStyler'
  • ***
  • Posts: 3177
  • The Netherlands
    • View Profile
Re: Q*bert, just some pics
« Reply #21 on: June 11, 2015, 04:10:31 PM »
Thanks guys for the help, and the color scheme is a great idea and big help.

So far I measured the monitor (117 VAC), the service plug (226 VAC) and connector J5 (13.8 VDC, schematic says 11.5 VDC, is the surplus a problem?)

And after measuring the voltages on the 3rd connector I flipped the switch and the game is now running on 230V. This makes the shortage on stepdown converters one less.  :)

Next up is Juno First.
« Last Edit: June 11, 2015, 07:14:55 PM by ckong »

level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #22 on: June 11, 2015, 07:57:01 PM »
Well done !

Here's one  :spaceace: to the battle against those ugly (external) step-downs !!! Gotta kill them all !

level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #23 on: June 11, 2015, 08:05:00 PM »
(13.8 VDC, schematic says 11.5 VDC, is the surplus a problem?)

No. Sometimes in electronics voltage indications are "about", namely when they are _unregulated_ voltages. Unregulated voltages exist when......there has been no regulation of any kind :D

So, if there's no "complex" electronic schematic to regulate the voltage, or even a simple one like a 7805 or 7812, you can expect voltages to be "about" the value indicated. Once regulated they DO have to be close to spec, so +5V should be not more than +5.15 f.i. The reason is that TTL chips don't like to "eat" anything else than 5V (and even then there is a small margin).

Unregulated voltages also will most of the time measure higher when there is no load connected (like you just did). Once you connect the load, the voltage will drop (because of the load) to about the value that is indicated. This is because.....it is an Unregulated voltage and there is nothing to regulate it :D



https://www.youtube.com/watch?v=NHgDu5_1m70

level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #24 on: June 11, 2015, 08:09:42 PM »
Waaaaaahaahahahahaha, Oh god....I just HAD to look up the first episode of that show Soap....

It's un-American funny IMHO :)

https://www.youtube.com/watch?v=epmuzMbBNvI&list=PLxnJpxCzmV9irpr6MgMEDTAnfsEnnabcS
« Last Edit: June 11, 2015, 08:12:16 PM by Level42 »

ckong

  • ArcadeLifeStyler'
  • ***
  • Posts: 3177
  • The Netherlands
    • View Profile
Re: Q*bert, just some pics
« Reply #25 on: June 11, 2015, 08:13:47 PM »
 :D

level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #26 on: June 11, 2015, 08:19:03 PM »
Remember it was broadcast by VPRO in The Netherlands BITD.....so it was culturally OK to watch  ;D

ckong

  • ArcadeLifeStyler'
  • ***
  • Posts: 3177
  • The Netherlands
    • View Profile
Re: Q*bert, just some pics
« Reply #27 on: June 17, 2015, 09:56:17 PM »
Picture of the Q*bert production plant. Notice that the upper coin door doesn't have the Gottlieb name plate, or frame for it. Meaning that this is an early or a late production serie?




level42

  • ArcadeLifeStyler'
  • ***
  • Posts: 13555
  • Ridderkerk, arcade capital of Europe !
    • View Profile
    • Arcade 42
Re: Q*bert, just some pics
« Reply #28 on: June 17, 2015, 11:22:04 PM »
Wow great pic. I think someone mentioned in my Q*bert thread that the early one's had no Gottlieb name plate in the coin doors.

My serial is somewhere in the 1600

ckong

  • ArcadeLifeStyler'
  • ***
  • Posts: 3177
  • The Netherlands
    • View Profile
Re: Q*bert, just some pics
« Reply #29 on: June 18, 2015, 03:57:05 AM »
So yours must be one of them in the above row!!  ;D  Awesome.

The picture clearly shows the final stage of assembly, seeing that the gamescreen is on. Probably end-quality check.