Bally Game Show Chaser Lights - Dim

(Topic ID: 199739)

Bally Game Show Chaser Lights - Dim


By Pinphila

1 year ago



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  • 18 posts
  • 5 Pinsiders participating
  • Latest reply 1 year ago by Pinphila
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GameShow Lampboard.png

#1 1 year ago

I have a ball game show and I'm trying to fix the chaser lights. They work but are very dim. I reflowed solder on the light board connections.

Thoughts?

#2 1 year ago

Are they fused? Often times a short will make the lights go dim but usually will blow a fuse fairly quickly. Sometimes this rarely can even occur inside of a bulb if it burns out the wrong way, I believe.

I bet they'd be fused though, so unless somebody stuck a tinfoil-special in there, this may not be relevant advice as it should blow the fuse in that case. Nonetheless, make sure the fuse is the right rating and that there's no extra load (like mods) on this line as that would also dim the lights down.

Using incandescents, then, I presume?

#3 1 year ago
Quoted from Otaku:

Are they fused?

The only thing I could think that fuses would cause the lamps to go dim is if the contacts are tarnished, causing more resistance in the power connections.

Same would go for the connectors going to the control board.

#4 1 year ago

Can you check voltage when not under load?

#5 1 year ago

I will check the voltages and report back.

#6 1 year ago

Be sure to check connector pins/sockets for burnt up ones or bad solder joints etc. As well.

Possibility of a poor connection causing high resistance/lower voltage to bulbs.

#7 1 year ago

Pinphila, just saw this other thread. It's about totally out lights, but I quickly scanned over it and it looked like some others have already mentioned some great info of things to check voltages and where, connectors, caps, rectifiers, etc)

Hopefully it could help you too!

https://pinside.com/pinball/forum/topic/bally-the-game-show-chaser-lamps-not-working

#8 1 year ago

Tha

Quoted from pacmanretro:Pinphila, just saw this other thread. It's about totally out lights, but I quickly scanned over it and it looked like some others have already mentioned some great info of things to check voltages and where, connectors, caps, rectifiers, etc)
Hopefully it could help you too!
https://pinside.com/pinball/forum/topic/bally-the-game-show-chaser-lamps-not-working

Thank you! I searched but couldn't locate any others. I'll report back

#9 1 year ago

Update - 5v is coming in at j5 and j3. Onviously, the more bulbs I remove from the light board, the brighter they get. I will check the voltages at the light boards connection next.

#11 1 year ago

Is bridge1 ok ?

GameShow Lampboard.png

#12 1 year ago

In general, Some voltage but lack of current without a specific bad socket or anything sounds like a connection (cold or broken solder joint/burnt or corroded connector/corroded or loose fuse or fuse holder/poorly crimped wire/etc), or a direct issue on power circuit.

So yes, definitely check careful for all that front side of board and back!) definitely check bridge as zaza is saying (possible bad solder on bridge), and check out any electrolytic capacitors on there (thought were a couple off hand, but at least that bigger one on board-could be questionable).

#13 1 year ago

Thanks guys. I checked the bridge and it's ok. I'll check the connectors again and reflow some solder

#14 1 year ago

Well, lesson learned. Even though bridge checkout ok, it wasnt. Replaced the bridge rectifier on the chase board and all is well.
Just wanted to circle back and leave the results in case anyone else has the problem.

#15 1 year ago
Quoted from Pinphila:

Well, lesson learned. Even though bridge checkout ok, it wasnt. Replaced the bridge rectifier on the chase board and all is well.
Just wanted to circle back and leave the results in case anyone else has the problem.

Super glad you figured it out!

Just curious...were you trying to measure the bridge "in circuit"? If so, how did it measure when you removed it vs. In circuit?

#16 1 year ago
Quoted from pacmanretro:

Super glad you figured it out!
Just curious...were you trying to measure the bridge "in circuit"? If so, how did it measure when you removed it vs. In circuit?

I did test it in circuit at first. I just trashed the old one however now I’m curious so I’ll pull that from trash and test

#17 1 year ago
Quoted from Pinphila:

I did test it in circuit at first. I just trashed the old one however now I’m curious so I’ll pull that from trash and test

Cool. I was just curious if it could have been a bad solder joint on it (don't remember if you said you reflowed the solder on that component), or possibly was just reading different when in circuit. May be useful info for future people.

Thanks!

#18 1 year ago
Quoted from pacmanretro:

Cool. I was just curious if it could have been a bad solder joint on it (don't remember if you said you reflowed the solder on that component), or possibly was just reading different when in circuit. May be useful info for future people.
Thanks!

I did reflow the solder on the bridge but that didnt help it. Im 99% positive the bridge tested ok but maybe I missed something. Well, at least it works.

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