Re: 42pfl5432d/37 no picture but have sound
they will be changed.. they are not that bad if you look at them in person.
no leaks or that bulge is not as big..
question is the master inverter board.. without caps or no caps,
I still get non running TV without picture.
dsm482
Member
Last Activity: 05-02-2021, 12:54 PM
Joined: 12-28-2019
Location: Rochester NY
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Re: 42pfl5432d/37 no picture but have sound
Where do I find inverter board Master only.
Not to many around on internetLeave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Is it safe to say I got bad main inverter board.???
Are those O points "jumpers" all 3 have to have 25V all the time.
Only the top has 25V both sides.Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
got themLeave a comment:
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Re: 42pfl5432d/37 no picture but have sound
what do you mean pull straight out.
just pull the ribbon cable out?
how do you insert, just insert it, nothing pressing down?Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
here are pics....Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
how do you disconnect the ribbon cables, I Dont want to break something?
The ribbon comming from other inverter slave and Tcon.
I want to look at the backside of this for cracks.Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Hi,
I played with it over nite.
There is 3 big O jumpers next to the connector.
One has 25V on both side the one closer to fuse 15.
fuse also has 25v.
The other two jumpers have 0V on both sides.
I tried heating it a touch with a fan,
I got the picture come back longer.. then it went out.
Rechecked voltage the white fuses were at 24v.
Let it cool off, after 10 min checked again they were back down all 4 white fuses down...Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Hi,
I played with it over nite.
There is 3 big O jumpers next to the connector.
One has 25V on both side the one closer to fuse 15.
fuse also has 25v.
The other two jumpers have 0V on both sides.
I tried heating it a touch with a fan,
I got the picture come back longer.. then it went out.
Rechecked voltage the white fuses were at 24v.
Let it cool off, after 10 min checked again they were back down all 4 white fuses down...Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Yeah but if am getting 24-25v coming in at connectir,
Thats means they are putting out.?
The voltage is dropped at 4 white fuses but not fuse 15(f1) next to connectorLast edited by dsm482; 05-01-2021, 11:16 PM.Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Here are the pics voltage drop somehow at white fuses
On main inverter board. It gets 24-25 v on all 5 pins at connector...Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
The pins are getting at connector 25 v,
Fuse 15 (says f1 next to it) next to connector is 25v both sides.
All other white fuses in front of caps went to little below 18vLeave a comment:
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Re: 42pfl5432d/37 no picture but have sound
I rechecked 3rd time
It went down on all 17.8
Except the 15 fuse has 25 v now..
I will retest tomm with my other meter fluke.
I am sure numbers are correct unless my cheapo meter is f...n me.Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Thats the same fuse near the white legen 15 on it.
Next to it says f1 .
It gets both sides 24vLeave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Yes the tv was working with the main board.
But i have sound..
I recheckd 18v is correct. But i will do it a third time.
F1 fuse is 24v on inverter main board.
Whats this 15? Another fuse..??Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
I broke a sweat, trying to test all thise values
sorry for typos
I had to use my cell phone.
Internet died from spectrum wtfLeave a comment:
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Re: 42pfl5432d/37 no picture but have sound
Did you read my answer for resistance on ccfl?
How i did it.
And the values?
Open on side of wire going to panel
Voltages
Tcon fp1 fuse both sides 12v
Main inverter board
F1 fuse 24v both sides
F101 18.3v to 18.6v both sides
F102 18.5v to 18.5v both sides
F103 18.6v to 18.7v both sides
F104 18.8v to 18.6v both sides
Slave inverter board
F201 24.8v to 24.8v both sides
F202 25v to 25v both sides
F203 25.1v...Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
I tried flashing a light didnt see anything.
Ccfl going to panel i unhoked the white connector from inverter board.
Resistance to panel is open on all of them.
Resistance to inverter board side connector is at 5.7-5.9 range on all of them both sidesLeave a comment:
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Re: 42pfl5432d/37 no picture but have sound
there is 10 on each inverter board.
Disconnect them.
Check resistance from the CCFL thats wires going to TV panel right?
Then check the resistance of each black transformer same plug at panel boad inverter side
Right?Leave a comment:
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Re: 42pfl5432d/37 no picture but have sound
so disconnect the connector, the white one..obviosly TV unplugged.
Resistance test..
I am not that dummyLeave a comment:
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