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How
to Repair a Toshiba 51H84
With an All Green Display (No Red or Blue)
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Click Here |
I received
this TV with word that the Green CRT was bad.
Specifically, the image was all green when on.
He said that it used to change back to "normal" when he left it on for
5 minutes,
but that it would no longer do that.
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I opened the front of the TV to check the CRTs with the power on.
When I suspect a faulty CRT, I like to tap on them with a
wooden stick.
I noticed when I tapped the circuit board on the green CRT that the
image would flicker between all green, normal and blank.
When a circuit board behaves in this manner, it typically indicates a
weak solder joint or a crack on the metal circuit traces.
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I
resoldered every single solder point on this circuit board, and it had
no effect to the intermittent color/green/blank reaction when I tapped
on the circuit board.
So I started checking the circuit traces. I used a bright
light and finally found two broken traces on this board, and I jumpered
a wire across them.
See the image on the left for the jumper locations. |
Click Here |
Viola, an
excellent stable picture
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Click Here |
A working
Toshiba 51H84
This picture was just taken with the antenna using the normal tuner
(I wish I had taken a picture with the HD signal) |
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Need Help? or Have
a Question
about This Repair?
Ask a Question in the RiddledTV Forums
This website is for information purposes only. RiddledTV.com
and its affiliates are not responsible for damage to your equipment, ego, blown parts, county wide power outages, planetary disruptions, or personal
injury that may result from the information provided here.
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