(Topic ID: 255765)

Lights not operating on my T2


By nzman

4 months ago



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  • 10 posts
  • 4 Pinsiders participating
  • Latest reply 4 months ago by ChrisHibler
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5 Target Circuit Board A14517 (resized).jpg

#1 4 months ago

Hi all...

I'm having a weird problem.
Some of the lights won't light up on my Terminator 2 Pin.

It's quite a few lamps.
When I did some investigating, I realized that the lamps were all from 2 different cross sections of the lamp matrix.
Row 3 / Col 3
Row 8 / Col 8

Row 3/ Col 3 lands on the (leftside) target 3. I replaced the resistor on that lamp, which makes me think I have the incorrect resistor in there. Anyone know the correct resistor for this circuit board ? (board A-14517 5768-12790-00 see attached) The best I can see on the other resistors is that they say "N1" on them.

Row 8/ Col 8 lands on Top Lane Right light. I haven't touched that lamp. (besides replacing all bulbs with LED lights)

Any ideas on fixing these issues ?

thanks in advance

5 Target Circuit Board A14517 (resized).jpg
#2 4 months ago
Quoted from nzman:

Hi all...
I'm having a weird problem.
Some of the lights won't light up on my Terminator 2 Pin.
It's quite a few lamps.
When I did some investigating, I realized that the lamps were all from 2 different cross sections of the lamp matrix.
Row 3 / Col 3
Row 8 / Col 8
Row 3/ Col 3 lands on the (leftside) target 3. I replaced the resistor on that lamp, which makes me think I have the incorrect resistor in there. Anyone know the correct resistor for this circuit board ? (board A-14517 5768-12790-00 see attached) The best I can see on the other resistors is that they say "N1" on them.
Row 8/ Col 8 lands on Top Lane Right light. I haven't touched that lamp. (besides replacing all bulbs with LED lights)
Any ideas on fixing these issues ?
thanks in advance[quoted image]

Those are blocking diodes. Usually 1N4004

#3 4 months ago

The typical cause of lamps in PCB carriers not working are...
1. fractured header solder joints. Reflow them.
2. "divots" in the PCB solder pool where the twist-in socket settles. Reflow that solder, adding a bit more.
3. Fatigued twist in socket. Swap it with another socket.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#4 4 months ago
Quoted from ChrisHibler:

The typical cause of lamps in PCB carriers not working are...
1. fractured header solder joints. Reflow them.
2. "divots" in the PCB solder pool where the twist-in socket settles. Reflow that solder, adding a bit more.
3. Fatigued twist in socket. Swap it with another socket.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

Great answer Chris! Now get my boards fixed, LOL just kidding. When they are ready, they are ready.

Ken

#5 4 months ago
Quoted from eyeamred2u:

Great answer Chris! Now get my boards fixed, LOL just kidding. When they are ready, they are ready.
Ken

Hey...a guy needs some recreational time off...that's what PinSide is for me.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#6 4 months ago
Quoted from ChrisHibler:

Hey...a guy needs some recreational time off...that's what PinSide is for me.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

Lol you are so right Chris!

#7 4 months ago
Quoted from ChrisHibler:

The typical cause of lamps in PCB carriers not working are...
1. fractured header solder joints. Reflow them.
2. "divots" in the PCB solder pool where the twist-in socket settles. Reflow that solder, adding a bit more.
3. Fatigued twist in socket. Swap it with another socket.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

Chris,

Would a unlit lamp knock out the whole row/colum of a lamp matrix ?

#8 4 months ago

Did it quit working when you put the LEDs in?

#9 4 months ago
Quoted from Mad_Dog_Coin_Op:

Did it quit working when you put the LEDs in?

No, I put the LEDs in almost a year ago.

I did replace the original T2 skull with the Loot Crate skull.
I rewired the eye lights behind it.
They konked out on me a little after installing that.

#10 4 months ago

An unlit LED, depending on the reason, can cause larger problems. Sometimes they short with a lot of side effects.
But generally, a single unlit lamp is either the wires leading to it, the socket, the isolation diode, or the lamp itself.
--
Chris Hibler - CARGPB #31
http://ChrisHiblerPinball.com/contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

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