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(Topic ID: 255765)

Lights not operating on my T2

By nzman

4 years ago



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5 Target Circuit Board A14517 (resized).jpg
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#1 4 years ago
OP
 
NZ

nzman

Pinside+ Frequent

US Park Ridge, IL

7y 44,400 20 9

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).jpg5 Target Circuit Board A14517 (resized).jpg
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#2 4 years ago
 
KJO

eyeamred2u

Pinside+ Frequent

US Cleveland, OH

7y 74,800 2,857 5

OP
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

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#3 4 years ago
 
TOX

ChrisHibler

Chris' Pinball Repair

US Chesterfield, MO

12y 120K 9,996 46

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

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#4 4 years ago
 
KJO

eyeamred2u

Pinside+ Frequent

US Cleveland, OH

7y 74,800 2,857 5

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

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#5 4 years ago
 
TOX

ChrisHibler

Chris' Pinball Repair

US Chesterfield, MO

12y 120K 9,996 46

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

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#6 4 years ago
 
KJO

eyeamred2u

Pinside+ Frequent

US Cleveland, OH

7y 74,800 2,857 5

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!

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#7 4 years ago
OP
 
NZ

nzman

Pinside+ Frequent

US Park Ridge, IL

7y 44,400 20 9

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 ?

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#8 4 years ago
 
CCS

Mad_Dog_Coin_Op

Mad Dog Coin Op

US Redondo Beach, CA

6y 118K 2,832 14 14 1

Did it quit working when you put the LEDs in?

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#9 4 years ago
OP
 
NZ

nzman

Pinside+ Frequent

US Park Ridge, IL

7y 44,400 20 9

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.

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#10 4 years ago
 
TOX

ChrisHibler

Chris' Pinball Repair

US Chesterfield, MO

12y 120K 9,996 46

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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