(Topic ID: 299798)

Correct Fuses for Gottlieb Sing Along

By Sewellmatts

52 days ago


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  • 13 posts
  • 7 Pinsiders participating
  • Latest reply 51 days ago by HowardR
  • No one calls this topic a favorite

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#1 52 days ago

Newbie needs help choosing correct ampere for three fuse holders on Gottlieb Sing Along. Stickers are gone. Left to right-15 amp, middle 10amp, right 10amp?
Thanks for helping.

Gottlieb fuses (resized).JPG
#2 52 days ago

Hi Sewellmatts , Welcome to pinside!!

The fuse with the Red and Red-White wires is the 15 amp fuse for your 25 volt circuits
The fuse that enables the Score Illumination lights is a 10 amp fuse
The fuse that enables the Playfield lights is a 15 amp fuse

#3 52 days ago

The left one is for coils, usually 15 amp. Next two are for playfield and backbox lamps, usually 10 amp.

The middle lamp fuse looks to be shorted, you should move the white wire back to the lower terminal.

Edit: Yes as HowardR said, the other lamp fuse might be a 15 amp, but first try if 10 A fuse will do.

#4 51 days ago

Howard R and Tuukka-thank you for you prompt replies.
Regarding the middle fuse holder I thought it odd that both wires were soddered to the top terminal. Would there ever be a reason to do that? What might the consequences be of putting both wires on the same terminal? Thanks.

#5 51 days ago

It is bypassing the fuse protection. By doing so, any short would result in an overheat condition that could lead to a bad situation!

I wouldn't be surprised if you have a short somewhere in the circuit that was causing the fuses to blow.

Connect the white wire to the other side of the fuse lug and install a 10amp fuse.

Good luck!

#6 51 days ago
Quoted from Sewellmatts:

What might the consequences be of putting both wires on the same terminal?

The consequences are the wires get hot if there is a short. Hot enough to melt insulation off the wire and possibly start a fire.

#7 51 days ago

Thanks for the advice. I have a ground question. should I start at separate post?

#8 51 days ago

Please start a new post, and mark this one resolved.

#9 51 days ago

Pretty sure there is another fuse under the playfield. Drove me nuts not knowing it was there.

#10 51 days ago
Quoted from Electrocute:

Pretty sure there is another fuse under the playfield. Drove me nuts not knowing it was there.

Sing Along has 3 other fuses for a total of 6

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#11 51 days ago

I have been thinking about the comments and consequences. Thank you. I think it is possible that who ever bypassed the fuse on the second holder (by connecting both leads to upper terminal) could not find what was blowing that fuse. How would one find the problem on the playboard circuit that was blowing that fuse?

#12 51 days ago
Quoted from HowardR:

The fuse with the Red and Red-White wires is the 15 amp fuse for your 25 volt circuits
The fuse that enables the Score Illumination lights is a 10 amp fuse
The fuse that enables the Playfield lights is a 15 amp fuse

Quoted from Sewellmatts:

How would one find the problem on the playboard circuit that was blowing that fuse?

Using your schematic, you’ll figure out what that circuit does. Howard mentions score illumination lights so find out exactly which lights those are and check for shorts. Could be a socket touching something or insulation melted exposing bare wire. A meter might be helpful.

#13 51 days ago

This Fuse circuit breaker can reduce the frustration of burning out a fuse every time you want to test if you've fixed it.
http://www.pinwiki.com/wiki/index.php?title=EM_Repair#Electrical_short_troubleshooting_Fuse_helper

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