Hi all experts,
I will try to explain clearly what I want to do and the doubts I have.
This is a Viewsonic monitor for years that have broken the lamps and finding no replacement we have decided to put LED strips.
We have the DC / DC controller bought in Aliexpress that as you know comes with four cables (VIN, GROUND, ON / OFF AND DIM) to solder on the monitor board.
I have seen many videos and I have the general idea of what to do but my doubt is that I can not find the right voltage to solder on the board the VIN cable. I only see 12V, 13V and 25V.
I explain what I have done so far:
VIN: I have soldered it to 25V in different places of the monitor board (I tested with 12 and 13V but they do not turn on the led) this connector board does not have the pin for VIN
GROUND: to pin ground on connector
ON / OFF: to pin ON / OFF of the connector that has 0.12V (is this enough voltage?)
DIM: to pin BRIGHT of the connector that has 3.28V
Well, what I have achieved is that I turn on the monitor that I have connected to the laptop, but the image I see is as if it had a lot of brightness but like fog, which means that the icons are not seen at all and what there is in the screen. I know I have not explained myself well and you will not understand me but it is difficult to explain.
So it is clear that somewhere I screwed up, either in the 25V of the VIN, either in the rest of voltages or maybe that as I read somewhere should have disconnected some mosfets and some capacitor on the board.
The help that I am asking for is that you tell me exactly where on the board I should solder the different wires of the regulator.
And this is where I ask for your help so you can guide me by giving me ideas and suggestions.
I send photos of the board on both sides, photos of the DC / DC controller, photo of the monitor model and also if you need I have the PDF of the monitor available.
Well, I thank all those experts who lend themselves to help.
Regards.
I will try to explain clearly what I want to do and the doubts I have.
This is a Viewsonic monitor for years that have broken the lamps and finding no replacement we have decided to put LED strips.
We have the DC / DC controller bought in Aliexpress that as you know comes with four cables (VIN, GROUND, ON / OFF AND DIM) to solder on the monitor board.
I have seen many videos and I have the general idea of what to do but my doubt is that I can not find the right voltage to solder on the board the VIN cable. I only see 12V, 13V and 25V.
I explain what I have done so far:
VIN: I have soldered it to 25V in different places of the monitor board (I tested with 12 and 13V but they do not turn on the led) this connector board does not have the pin for VIN
GROUND: to pin ground on connector
ON / OFF: to pin ON / OFF of the connector that has 0.12V (is this enough voltage?)
DIM: to pin BRIGHT of the connector that has 3.28V
Well, what I have achieved is that I turn on the monitor that I have connected to the laptop, but the image I see is as if it had a lot of brightness but like fog, which means that the icons are not seen at all and what there is in the screen. I know I have not explained myself well and you will not understand me but it is difficult to explain.
So it is clear that somewhere I screwed up, either in the 25V of the VIN, either in the rest of voltages or maybe that as I read somewhere should have disconnected some mosfets and some capacitor on the board.
The help that I am asking for is that you tell me exactly where on the board I should solder the different wires of the regulator.
And this is where I ask for your help so you can guide me by giving me ideas and suggestions.
I send photos of the board on both sides, photos of the DC / DC controller, photo of the monitor model and also if you need I have the PDF of the monitor available.
Well, I thank all those experts who lend themselves to help.
Regards.
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