Sanyo DP42840 P42840-05 set wont turn on

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

leds also working with video cable unplugged

[budm]

Re: Sanyo DP42840 P42840-05 set wont turn on

If you look at the LVDS connections, the two boards are not the same, look at the component with 'X' which means it is not used (installed). There are many 'X' on both boards so the two boards are not the same.
You need to look at the schematics in details to see if they are really the same or you may cause damages.

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

is there way make it work?

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

everything works as it should except video wrong pinouts other tv had diff screen was plasma

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

remove pins? or reroute them? this is just a project tv for fun I don't care if it blows im learning having fun

[budm]

Re: Sanyo DP42840 P42840-05 set wont turn on

Look at those two schematics: https://www.badcaps.net/forum/showpo...3&postcount=22
Sanyo DP42840 P42840-05: Your original
and the one you are trying to use the P42740-04, add or remove those 'X' to make it the same as your original.
I also do not know what will happen with the screen resolutions.

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

pins 6,7,8 and 9 is the ones I omitted, turns o now with sound still no picture, I think the inverter or tcon is why first mainboard went out? when I unplug K8L from anolog board the inverter lights up screen so could be tcon maybe?

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

or just the wrong board?

[budm]

Re: Sanyo DP42840 P42840-05 set wont turn on

pins 6,7,8 and 9 is the ones I omitted, turns o now with sound still no picture, I think the inverter or tcon is why first mainboard went out? when I unplug K8L from anolog board the inverter lights up screen so could be tcon maybe?

Do you mean you REMOVE/ADD those resistors which are not supposed to be there and there in your original board? The LDVS connectors pinout are the same, the resistors that are used and not used are not the same.
Look at the two diagram again, can you see those 'X' resistors?
You are trying to make the board that was made for Plasma to work with LCD, correct?

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

I guess remove those resistors I just removed 4 wires from that connector what resisters need removed? from the 427 board?

[budm]

Re: Sanyo DP42840 P42840-05 set wont turn on

I guess remove those resistors I just removed 4 wires from that connector what resisters need removed? from the 427 board?

Look at the two PDF I attached so you can see what are need to be removed and added, it is tedious works so you need to look at the diagram of both boards and make the board you are trying to use to be the same as the original.
Print out both diagram and mark the differences.

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

R6308, R6309, R6310 and R6311 ?

[budm]

Re: Sanyo DP42840 P42840-05 set wont turn on

R6308, R6309, R6310 and R6311 ?

Did you look at both diagrams? That section is just part of the whole board that I know are not the same, who knows what else in the board that are not the same.
You want me to do all the work for you? I provide the marked up for you to look at, so do some works!
See how many parts you need to add/remove?
Print them out and look.

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

a lot diff in both boards for sure

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

I don't understand most of the schematics still learning was just hoping could change pinout as I have done in past on diff types video boards and cables, I do however thank you for all you have done and the input at least I got sound and leds lol

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

i still think it will work and tcon is broken ill let you know if i fry it

[budm]

Re: Sanyo DP42840 P42840-05 set wont turn on

As you can see, your original board diagram in the 'Pch-MOSFET' section that I marked, it has the 3 Transistor and the MOSFET, resistors, caps to receive the 'T-CON POW-ON' signal. The board that you want to use does not have that section stuffed with the components.
I do not even see how the board you want to use get the 12VDC to feed the T-CON from since the inductors are not in place either due to the fact it is made for PLASMA..
http://www.shopjimmy.com/panasonic-t...ab-d-board.htm
It does not get the power through the LVDS cables, not like your LCD panel.

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

that explains it thank you im learning budm

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

ill just look for a board that's cheap enough to replace it with the model I had is the harder one to find mainboard

[Sinfury2112]

Re: Sanyo DP42840 P42840-05 set wont turn on

damn your good at this stuff I should of stayed in school