Re: Hisense 32A4G Vidaa
Hi Sigmeyer
I get 12v on mainboard flex without screen board attached.
With screen board attached 12v value change to -1,8v as soon as switched on.
Other voltages on screen board is:
VAA 11,8v
VSS -07,94v
VCOM 6,25v
VDD 3,29v
HVAAF 5,72v
WP 0v
SDA 3,29v
SCL 3,29v
Thank you
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Hisense 32A4G Vidaa
Good day gentleman
I hope someone can assist.
I have a Hisense Vidaa tv that only shows dark screen, no picture. It started with vertical lines moving in from the left and would fade away after 5 minutes.
Currently only show black screen, with sound. Backlights fully working.
Any help would be highly appreciated.
Thank you...
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Re: Sony Bravia KLV-32BX320 dead
Replaced resistor and still no voltage at CN6401
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Re: Sony Bravia KLV-32BX320 dead
@ selldoor, the one leg is connected to the +side of cap so it has voltage on that leg but not the other. Multimeter does not read 0.00 ohms, its a dmm so reading does not change, so I think IC is not shorted. Meter is set on 20k ohm and show 0.00 ohms when probes are held together and 1 when not.
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Re: Sony Bravia KLV-32BX320 dead
@selldoor, there is no voltage passing through it
@budm, can't find any resistance reading on that legs
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Re: Sony Bravia KLV-32BX320 dead
Tried that and the one leg was lifted from board. Only printed 10 ohms J on it.
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Re: Sony Bravia KLV-32BX320 dead
Yes zero voltage on fuse. Tested resistor R6102 and no reading on it at all, IC6101 part number is MIP2H2
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Re: Sony Bravia KLV-32BX320 dead
Yes I did and it tested good
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Re: Sony Bravia KLV-32BX320 dead
Voltage on the big cap cycles between 303 and 307....
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Sony Bravia KLV-32BX320 dead
Hi there, I got a bravia klv-32bx320 from a friend that's completely dead. Apparently their was a powersurge at his house that left the tv dead.
I did some test with a multimeter and cant find any voltages on CN6401 and CN6402. Main fuse is ok though.
Any help will be greatly appreciated.
Thank you...
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Re: LG 42PT350R clicking on/off
Thanks a mil for your time Tom.
Will try to troubleshoot the most common problems then.
Parts are not readily available in south africa, so i will have to troubleshoot with what i got.
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Re: LG 42PT350R clicking on/off
Still dead-end. Just clicks on and off.
Also thought z-sus is defective.
Any idea what usually fail on it?
Thanks
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Re: LG 42PT350R clicking on/off
No test patterns at all. When z-sus connected psu clicks on and off, no voltage readings on Va and Vs. Z-sus removed voltage match panel sticker.
Also noticed that when ribbon cable fom z-sus to control board were removed, high pitch sound from z-sus were quiet.
But it still clicks on and off.
Problem with z-sus must be on Vs rail, coz when 250V fuse on z-sus were removed, psu clicks on and stay on.
Power also went to control board, and green led flashes.
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Re: LG 42PT350R clicking on/off
Nope, no image at all. Screen is completely dark.
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Re: LG 42PT350R clicking on/off
You correct Tom, i used AC instead of DC. Stupid me...lol!!
Never messed with the wiring while tv was running, did not wait till the caps discharged though.
Tv clicks on, high pitch noise from zsus, then clicks off. Repeats that cycle endlessly.
Problem is with the zsus i guess, just dont know which component.
Desoldered one leg of big fuse from board and psu goes on and stays on.
So problem definitely with zsus. Even changed some mosfets on zsus without any changed.
Fuses all checked okay.
Psu only clicks...
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