Acoustics Solutions Lcd42761f1080p
Long story short.
15th December Tv went off stuck on standby flashing blue light.Tv would not start up. Took back off found 2 bad caps and replaced. Same problem flashing blue light wont come out of standby.
Bought 2 Boards off Ebay, Both DOA, one sent back, other board still to send back. Bought new caps replaced all ones in pic, psu marked with black marker pen.
Tv now comes on and stays on but no picture or sound. Does not recognise any inputs from HDMI, scart etc. Does show all inputs on screen to choose them.
Tv has a blue screen, i can get into all menues.
On entering 4725 and engineers diagnostics everything is ok apart from last check which reads DTV NOK.
My guess is a problem still with the psu voltages .
I have watched many youtube videos and there is a very informative video of my exact tv with a link which lead me here. however here is my problem. I have downloaded many scematics for the voltages and there all different. so many Vestel boards.
Could someone please give me the voltages for the pinouts and testing procedue on the 28 pins that go from psu to main board.I have read here that some have to be tested in standby and then tested again when tv switched on ?.I guess the pins from 2 to 28 are standby and pins 1 to 27 are the voltages to main board when tv is switched on ?.
I used to tinker many years ago with broken apliances, Have capacitor tester, multi meter and soldering equipment.
This is a last ditched effort to fix my tv.
I just got it back from a Tv engineer free estimate , quoted £130 to fix Tv but wont inform me where the problem is. I can use the other board to test and switch out parts it need be if its psu problem.
Christmas has left me skint, No Tv and i am climbing the walls now.
I am willing to try and fix it following your guidance.
TY for any help in Advance .. I read the rules and have attached pictures of the boards in the tv to help you out.
Rob
15th December Tv went off stuck on standby flashing blue light.Tv would not start up. Took back off found 2 bad caps and replaced. Same problem flashing blue light wont come out of standby.
Bought 2 Boards off Ebay, Both DOA, one sent back, other board still to send back. Bought new caps replaced all ones in pic, psu marked with black marker pen.
Tv now comes on and stays on but no picture or sound. Does not recognise any inputs from HDMI, scart etc. Does show all inputs on screen to choose them.
Tv has a blue screen, i can get into all menues.
On entering 4725 and engineers diagnostics everything is ok apart from last check which reads DTV NOK.
My guess is a problem still with the psu voltages .
I have watched many youtube videos and there is a very informative video of my exact tv with a link which lead me here. however here is my problem. I have downloaded many scematics for the voltages and there all different. so many Vestel boards.
Could someone please give me the voltages for the pinouts and testing procedue on the 28 pins that go from psu to main board.I have read here that some have to be tested in standby and then tested again when tv switched on ?.I guess the pins from 2 to 28 are standby and pins 1 to 27 are the voltages to main board when tv is switched on ?.
I used to tinker many years ago with broken apliances, Have capacitor tester, multi meter and soldering equipment.
This is a last ditched effort to fix my tv.
I just got it back from a Tv engineer free estimate , quoted £130 to fix Tv but wont inform me where the problem is. I can use the other board to test and switch out parts it need be if its psu problem.
Christmas has left me skint, No Tv and i am climbing the walls now.
I am willing to try and fix it following your guidance.
TY for any help in Advance .. I read the rules and have attached pictures of the boards in the tv to help you out.
Rob
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