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JDH
Joined: 06 Sep 2011
Posts: 16
Location: South Carolina, USA
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| Posted: Thu Sep 22, 2011 1:20 am Post subject: Red Tube problem Runco 943 |
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Just received a replacement red tube for my Runco 943. I swapped out the broken tube and made sure everything was hooked back up. Now I am getting no light from the red tube, and no red led's on front either( blue and green are working).
I am not sure if i overlooked something or what the next step might be in troubleshooting the issue. If anyone has any idea let me know, thanks.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Thu Sep 22, 2011 1:34 am Post subject: |
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Yes, it could be that the red CRT socket/video amp got nuked when the tube imploded, but most likely one of the pins is bent on the long white connector that plugs into the bottom board. The back pin under the tubes is REALLY easy to bend when you take that connector off, then it bends right over when you plug it back in.
Take the white connector off, check to see if the pins are straight, straighten if not, and plug the connector back in.
If not, then swap the R and G CRT sockets and see if the green goes dead. I've got those sockets.. cheeeep! (like $10 plus shipping)
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JDH
Joined: 06 Sep 2011
Posts: 16
Location: South Carolina, USA
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| Posted: Thu Sep 22, 2011 11:19 am Post subject: |
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| Curt Palme wrote: | Yes, it could be that the red CRT socket/video amp got nuked when the tube imploded, but most likely one of the pins is bent on the long white connector that plugs into the bottom board. The back pin under the tubes is REALLY easy to bend when you take that connector off, then it bends right over when you plug it back in.
Take the white connector off, check to see if the pins are straight, straighten if not, and plug the connector back in.
If not, then swap the R and G CRT sockets and see if the green goes dead. I've got those sockets.. cheeeep! (like $10 plus shipping) |
i checked the socket looks like none of the pins are bent, tried to power it up still no red light.
One thing i did notice is that after about 3 min of running the red socket seems to be warm to the touch(metal bracket around it) when b/g sockets are both cool. could it be shorted?
thanks
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Thu Sep 22, 2011 12:58 pm Post subject: |
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It could be. Check to make sure none of the pins on the tube are bent, and then swap the sockets between the tubes.
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JDH
Joined: 06 Sep 2011
Posts: 16
Location: South Carolina, USA
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| Posted: Thu Sep 22, 2011 10:44 pm Post subject: |
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ya looks like a bad socket to, i put the green working socket on the red tube and it lit up. tried the bad socket on the green tube still nothing.
Looks like i will need the socket. sent you an email.
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