3
30W
Hello all I was hoping someone here might be able to help me out on a
little problem I am having with my TV. On the tv there is a small
line going across the screen which goes away after 10 minutes of being
powered up. My wife called a television repair man and he wrote down
on his receipt "Needs vertical rebuild capacitors bad" and he wanted
to charge $400.00!!!! I am an electronics tech but never worked on a
TV before so I thought I would look over the pcb to see if I see any
bulging or leaking caps. All the caps seem fine, I even took a few out
and measured their capacitance but realized after reading up on ESR
that is not totally reliable. I had repaired a grainy arcade monitor
once for someone but all I did was change every single electrlytic cap
on the board and it did the trick. Anyone know like a certain position
that the caps the repairman are referring to might be in? Like near a
hor/ver. transistor?
Also one last question I know working with tube televisions you have
to be careful of the high voltage. Someone told me with a projection
TV there is no high voltage stored once the TV is off because there is
no tube. Is this true? If not good thing I have been treating it like
it is charged.
TIA for any help!!!
little problem I am having with my TV. On the tv there is a small
line going across the screen which goes away after 10 minutes of being
powered up. My wife called a television repair man and he wrote down
on his receipt "Needs vertical rebuild capacitors bad" and he wanted
to charge $400.00!!!! I am an electronics tech but never worked on a
TV before so I thought I would look over the pcb to see if I see any
bulging or leaking caps. All the caps seem fine, I even took a few out
and measured their capacitance but realized after reading up on ESR
that is not totally reliable. I had repaired a grainy arcade monitor
once for someone but all I did was change every single electrlytic cap
on the board and it did the trick. Anyone know like a certain position
that the caps the repairman are referring to might be in? Like near a
hor/ver. transistor?
Also one last question I know working with tube televisions you have
to be careful of the high voltage. Someone told me with a projection
TV there is no high voltage stored once the TV is off because there is
no tube. Is this true? If not good thing I have been treating it like
it is charged.
TIA for any help!!!