Hello long time lurker

[Titch1644]

Hello
As topic says long time lurker here and Facebook.
I bought a space intruder black and white when I was 18 now 52.
Developed a fault over 20yrs ago and stopped playing .
Did a degree in electronics , thought yeah I can do that.
It has moved house with me and been a thing I would do one day.
But I’m not convinced that day will ever come
Last time I fired it up the monitor was blank and it just made a long noise.
Looking it over the game board looks fine but the circuit board at the neck end looks to be damaged.
Is it worth saving ?
Would it be cost prohibitive to pay someone to fix it ?

 

[Hurray Banana]

welcome to the forum, pictures of the neck board might help, if you've got them

 

[TheDaddy]

Welcomes !

Dave.

 

[69er]

Welcome inside ! As you have found , a degree is not too specific to digital techniques on amusement equipment but does give you a good head start ( been there , have HNC t shirt and wall certificates) and know there is a limit to theory compared to hands on experience.

It’s going to be a bit tough if the monitor needs obsolete parts but early game boards were often similar and if you can identify the ICs with a logic probe or scope you can possibly discover how ‘dead ‘ it is?

Time is its enemy but I am sure some old school collectors / repairers may advise YES, it’s worth a chance of repair ? Or not?

Best to see if you can get the monitor going or replaced first .. it may just show what logic issues could be present if the pcb is functioning in any way? Even patch any ‘suitable’ monitor to it that has working screen using some long wires, perhaps, have faith in yourself , many old games buzzed a while a power up ? See what gets suggested by other folk ? On here .

 

[Retroman839]

Hi & welcome aboard,
Looks in lovely condition to me,

Start at power.
Check fuses
Check transformer is putting out correct voltages.

Something going wrong 20 years ago is good.
Less miles under the hood.

What waz u doin 20 years ago
That you would let thr dust settle on your space invaders man?😉

 

[Akira99]

Welcome to the community

 

[Lurch666]

Where are you located dude?

 

[Phils Arcade]

Hey hi there.
Welcome, come on in, and put your feet up.

 

[Mr20to5]

Welcome aboard

 

[Titch1644]

Finally back again
to those who asked where did 20rs go, kids mainly
more recently mum with dementia, dad loosing his eye sight, wife battling the demon drink but now over 1000days sober
so time for ME

when I turn it on I just get a loud noise from the machine and nothing else.
so time to fix it , find someone to fix it or sell it.
seems a shame to sell but its just sat here.

im Manchester if anyone can guide or do

 

[Retroman839]

Glad you made it 👍

Lovely & clean cab.

• Failed Components (Capacitors/HOT): The monitor likely needs a "cap kit" (replacing capacitors). The Horizontal Output Transistor (HOT) is also a common failure point that can cause a high-pitched whine.

Remove HOT
Test it for short