Part replacements

[Icefire555]

So the small voltage regulator parts on one board are the only hard ware thing that is different from another board I have. Does anyone know what the part is? and if it can be replaced?

[FoxHound]

Its a 5 volt regulator. If you have another board that has a similar looking part but has a different number on it its likely that its just another 5 volt regulator from another manufacture.

[Icefire555]

Are they both 5V or can you tell if one is less?

[FoxHound]

Are they both 5V or can you tell if one is less?

 

Im assuming each picture is from a different board?

[FoxHound]

The top picture is in a smaller package (I cant read the number) but it just means that its a lower current regulator (I'm assuming 2-3A based on its size).

 

The bottom picture has a 5.4A 5V regulator.

 

The top board should work the same as your current one, If you wanted to replace the regulator it would be a huge PITA because the ground plane that the heat sync is on is going to have a huge thermal mass. But from what I see on the board the one with a smaller regulator should work just fine.

[Icefire555]

Im assuming each picture is from a different board?

 

Yes

 

The top picture is in a smaller package (I cant read the number) but it just means that its a lower current regulator (I'm assuming 2-3A based on its size).

 

The bottom picture has a 5.4A 5V regulator.

 

The top board should work the same as your current one, If you wanted to replace the regulator it would be a huge PITA because the ground plane that the heat sync is on is going to have a huge thermal mass. But from what I see on the board the one with a smaller regulator should work just fine.

 

The one with the smaller Voltage regulator is 19V 2.1A (From the power supply)

The larger one uses 19V 3.42A

[Icefire555]

However one has an audio out and the other doesn't so I'm thinking that would use a little extra power. (All the rest of the components are there besides the header for the 3.5mm jack) the soldier points are also under the 3.5mm jack (on the new board) where it should be. 

[FoxHound]

Yes

 

 

The one with the smaller Voltage regulator is 19V 2.1A (From the power supply)

The larger one uses 19V 3.42A

 

This is for driving a display correct? if so what size is the panel and what type of panel is it?

[Icefire555]

Its for a 27" tn panel. However the new board is from a 23" panel. The boards have the same ID number.

[FoxHound]

Are you sure that the driver IC is the same? (Same resolution between the two)

[Icefire555]

Yes they both do 1080p although I didn't realize the boards where different until after I ordered

[FoxHound]

Use the new 23" board with the 3.4A power brick, the back light is the only thing that should really take more current and isn't dependent on the regulator (Its the right side of the board next to the large capacitor). Because both boards have the same ID we can safely assume the lower current voltage regulators are due to the lack of the 3.5mm audio components that are missing off the new board.

[Icefire555]

The old board used more amperage. The new one takes less.

[FoxHound]

Right but its most likely using it in the back light witch is separate from the 5V and 1.2V power rails. So make sure you use the higher current (Amperage) Power adapter. As long as its the same voltage no harm will be done to the board.

[Icefire555]

Ok thank you! ^.^ I will see what happens.

[FoxHound]

No problem hope it works out.

[Icefire555]

No problem hope it works out.

Ok I got it today. The new board has a different main processor as the old board. The old is 

rtd2483rd

c5g78p1

 

The new is 

rtd2482d

a9f94a1

 

Everything looked like it worked fine, however the screen did not turn on.