My Bally Party Zone , no power at all

[PinPal]

My Party Zone has gone dead completely.
I had it going this morning with no problems.
When I switched in on I herd a crackle and nothing.
Checked the line fuse and that is ok.
Only thing I can think of that I replaced a 555 wedge globe on the lower pop bumper and the screw fell through. I fond it but not its washer.
What should I look for?
There is no power what so ever.
Help ! 

[beaky]

sounds like the thermistor

[PinPal]

Thanks Beaky,,
Were would I find it?,
Is it inside the box just inside the coin door the right ?
Thank-you for you're help,, I should no this 

[beaky]

yep,
in the metal box

its the part between the multimeter leads.

I know you wont forget but don't forget to unplug the machine from the wall before doing any work. 

[PinPal]

Thank you,
Yes,  it will be completely off !

[PinPal]

This is Party Zones power box, I haven't seen inside this before.
The thermistor is missing, looks like the previous owner left it out. 
Now I am worried that my transformer may have gone bad.
This is slightly out of my league now, will have to call out my Pin tech.

[beaky]

a lot of machines never had them fitted from the factory before a certain date so yours would have left the factory like that
 

[PinPal]

Thanks again for you're help beaky
What is the right value for the line fuse?
Party Zone has line fuse at 4,amps sl-bl but my Getaway has 8,amps.
 

[beaky]

Thanks again for you're help beaky
What is the right value for the line fuse?
Party Zone has line fuse at 4,amps sl-bl but my Getaway has 8,amps.
 

replace the getaway fuse, 8 amp is for 110v
240v = 4 amp fuse : 110v = 8 amp fuse (this is for bally / williams only)

[PinPal]

My Party Zone back in Operation,, thanks for all the help and to Homepin for the parts.
Thought this was going to be a costly fix, turns out it may have been Varistor in the power box that had gone bad.
Replace the Varistor and mine did not have a Thermister so I put one in.

Triple checked the wiring to make sure I did it the right way, thanks to Homepins instructions.
I Unhooked the transformer from the game and powered it up, all good.
Then I reconnected the game to the transformer and switched it on,,, all working again  

Again thanks to all for the help  

Note: The Varistor and the Thermistor is standing a fair way from the front of the box and I put insulation tape around the Fuse housing not shown in this pic.