Out Run Monitor

[Muerto]

This it what it shows at power on:



well, i tried to wire the monitor to ground like this: (the black wire..)





but all it did was this:



any idea??...

[grantspain]

hmmm,i would not use the low voltage ground as an earth-if anything you should have it connected to earth(fg)
atm your pic has the screen volts far too high

you have 2 power supplies in the cab,1 for the +5 and 1 for the +12??

[Muerto]

thereīs 2  supplies in the cab. - im pretty green in this area...

[grantspain]

well you need to connected the monitor earth to the other power supply fg connection for a start,next you need to locate the screen volts adjustment on the monitor flyback tranformer and turn that down a bit

do you get any game sounds?

[Muerto]

yes, the sound is fine! - ill try it now!... hold..

[Muerto]

hmmm, mooved the ground to FG on the power supply, but cant locate the screen volts...:





its the monitor print board...: (black wire is ground)

[grantspain]

that earth should be connected to the other power supply as it is doing bugger all

screen volts

[Muerto]

ok, but theres no FG on that...??

ill tried to turn the specific nob you point out, and nothing happens.... but i try mooving the groung to the other power supply.... hold..

[grantspain]

it will marked as earth or an earth sign

try the other adjustment above it

[Muerto]

the other power supply has no FG on it, only a GND...
and i tried to turn the above nob too, but i dosent help..

Should i try to ground the black wire on the 2nd power supplys GND???

[grantspain]

forget the monitor ground as its not causing your problem,its not really required

the screen volts should affect the brightness of the picture,use a mirror to see what affect it makes-it is the bottom of those 2 pots btw

[Muerto]

i have used a mirror, but it aint helping turning any of the nubs - even if i turned it very very slowly.....

[grantspain]

if the screen volts makes no difference then you have a monitor fault,i have a good idea what it is but there ain't no way you can repair it

[Muerto]

nooooo .... damn!......
hmmm, when i turn on the game, and it running, the graphic is altered by some cars running by (it sounds like that) and the flicker changes pattern, and returns to "normal" again.... still nothing to do about that?..

[grantspain]

yeah well if you had some tech knowledge then an easy fix,tbh i think you may end up killing yourself-i think you have just some bad solder joints on the monitor chassis itself

[Muerto]

ok, my kidbrother is an electrician, maby he knows how to solve this mess... or someone at his work does - thanks for your anwsers and your patience!

[grantspain]

well if you ain't careful you will end up like your username,good luck

[Muerto]

hehe! i will

[Muerto]

Hey.

Finnally i got some time, so i took a picture of the monitor print board, and i dont think it looks that well:



it looks very burnt.... is that bad? - in this case somthing i can repair?

[grantspain]

looks alright to me,you should check carefully for any cracks around the solder joints.this will need to be done with the neck card also
other possibilities could be some leaky caps,bad crt socket or connection or even a faulty flyback transformer

[Muerto]

thanks again! ill give it a shot!

[Muerto]

Hey

This is how the main board looks after i checked and repaired those who looked mysterious:



And the same for the neck board:



so, now i put it in the machine and see if it helped...

[Muerto]

nope! - didnīt work 

Maby ill go down to the local tv/repair shop and see if they can fix it...:

[grantspain]

hmm,i ain't convinced you have a monitor fault as such
i really do not like the wiring to the power supply on the right

[Muerto]

ok, now i had the monitor checked oud and welded by a certified technician , and itīs still the same..
Can you be more spesific about the bad wirering? - even better, if you have a Out Run cab, then take a picture of the powersupplys 

[grantspain]

what concerns me is some of the wiring on the right hand side psu,there are lots of wires added on
you need to trace to where all those wires go first

[Muerto]

ok, ill do that tomorrow. - with alot of pictures.

[Kevin Mullins]

what concerns me is some of the wiring on the right hand side psu,there are lots of wires added on
you need to trace to where all those wires go first

I agree, start with a schematic of the power requirements for the game and start tracing stuff. Not sure why they would have used two identical power supplies unless the amperage rating is insufficient or something.

It's difficult to trace with just pictures to look at, but there are a couple questions I would ask first.

Is there a ground wire on the video input next to the Red Green Blue wires?

Is that black wire on the left power supply +5 going to the DC Common on the right hand power supply?

[Muerto]

Hello Kevin!

Thanks for helping, really appreciate it!

The ground from the PCB runns all the way to the monitor:





The wire is not comming from +5, it rans from GND to DC COM

[Muerto]

what concerns me is some of the wiring on the right hand side psu,there are lots of wires added on
you need to trace to where all those wires go first

well, that was quite a job 

First i draw this scematic:


Heres both PSUīs - theres a yellow wire comming up, to the right side of the right psu




Maby it is missing some where here:



All the wires from DC COM and +5V



Going into this..



.. and spreads out to the PCB, and other who needs +5V and DC COM

[grantspain]

right well you can see whats gone on there,that cab does not require 2 power supplies
the reason 2 have been installed is down to the massive voltage loss across that terrible wiring

the best you can do first is meter the +5 at the input connector to the game board,my bet is that you are getting a vast voltage loss across those cables and ending up with a lot less than +5 volts at the game board

both those psu look old,if it were me i would install a nice new 15 amp switcher and sort that crappy wiring out

first prove the voltage at the game board

and what the hell is that ground doing linked to the other psu,thats beyond me

your earth that you connected is doing nothing and not earth as you do not have an earth input onto the psu anyway,if you wanted you could connect it from the monitor frame to the mains filter body

[Muerto]

should i remove the wire from GND to CD COM??

[grantspain]

should i remove the wire from GND to CD COM??

it would be a start,and remove your monitor earth that you installed as its doing nothing anyway
get that +5 reading

[Muerto]

ok, thanks! - ill have a meter tomorrow so i can check the voltage!

[Kevin Mullins]

The new pictures do help.... I was just trying to clarify some uncertanties. The new pic angles definitely help.

right well you can see whats gone on there,that cab does not require 2 power supplies
the reason 2 have been installed is down to the massive voltage loss across that terrible wiring

The only thing I see the left power supply doing is providing +12v to something.
The right one does not have a +12v. So it appears that someone has added that power supply. (why I'm not sure) The one on the right looks factory according to the schematics.

That loose yellow wire probably went to that fuse block near it. Looks like it went to some  DC Motor board to do with the steering. (force feedback or something ?) It doesn't look like there is a fuse in that place, but maybe there is something wrong with it causing it to blow.

That white terminal block also looks like it's shown in the schematics.

I also agree with needing to actually measure the voltages coming from those power supplies with a meter. You have to know for sure what is working and what is not.

Outrun Manual in case you don't already have it:
OUTRUN MANUAL
Schematics are on page 43 towards the end.

Does the game play blind at all? (coin up, sounds, etc)

[Muerto]

Does the game play blind at all? (coin up, sounds, etc)

Yes, sound playes fine, and when i start the game, i can shift the gear, and when im driving of course theres force feedback in the steeringwheel...

but as said, ill check the +5v with a meter tomorrow.

[grantspain]

that +12 psu was probably added for an electronic coin mech/credit board,thats why i suggested getting a new switcher as it will have all the necessary voltages

[Kevin Mullins]

that +12 psu was probably added for an electronic coin mech/credit board,thats why i suggested getting a new switcher as it will have all the necessary voltages

Yeah ... just wasn't sure "what" is was being used for.
But if the 12v is needed then yes, I would agree to reccommend a new switcher that includes all the required voltages in on power supply.

Starting to sound like a possible video output issue if the game plays correctly aside from the scrambled video.

Have you tried re-seating any of the sockeed chip on the boardset yet?

[Muerto]

i bought the PCB recently, as working 100% - so no, havent tried reseating them... do that tomorrow also.

[grantspain]

just looking again at all your photos,one thing puzzles me greatly

the video plug that goes to the game board,its in the wrong bloody place
it should be on



also i am very worried about the orange wire coming from the left side psu,you need to trace where it goes,i would disconnect it now