What would happen if you put wrong part number main board in the TV?

[Pioneerx01]

I can't seem to be able to find an answer to this question. Let's say that I have a TV model that has 5+ different part numbers for main boards released. They all look physically the same, all are for same TV model, none are listed as compatible with each other (based on shopjimmy), and most for different panels.

Anyone has a past experiences with this? What could happen, what are the side effects, or horror stories?

Thanks

[ReeceyBurger123]

Re: What would happen if you put wrong part number main board in the TV?

I a Vestel board deigned for a 22" into a 32" same model board and it burnt the Lvds wire up badly ! What board have you got as some manufactures are nicer than Vestel ?

[budm]

Re: What would happen if you put wrong part number main board in the TV?

'what are the side effects' Incompatible GND pins and Voltage pins = nice smoke. Incompatible Voltages is another problem, some panel may use 5V for T-CON, some may use 12V.
BTW, you can have same blank circuit board (PCB) that can be stuffed with difference parts to make 10 or 100 difference PCBAs (Printed Circuit Board assembly).

[ReeceyBurger123]

Re: What would happen if you put wrong part number main board in the TV?

'what are the side effects' Incompatible GND pins and Voltage pins = nice smoke. Incompatible Voltages 12

Yep

[Moreno83]

Re: What would happen if you put wrong part number main board in the TV?

Just look up the specs from for example the power supply. If all output voltages are the same but has a different name you can still use it. Some have for example extra connectors.

For example:

I own a Panasonic 50VT50 which i repaired with a new mainboard. I couldn't find the VT50 mainboard and saw that the ST50 ( ST/GT/VT ) mainboard was visually the same. I tried it and it worked perfectly. ( For all haters , of course im using a VT50 mainboard now :p )

However , i also tried a different mainboard for a samsung tv. Same model range but the t-con flex cable melted away....

[Pioneerx01]

Re: What would happen if you put wrong part number main board in the TV?

Just look up the specs from for example the power supply. If all output voltages are the same but has a different name you can still use it.

What about the fact they they are compatible with different panels and panel manufacturers, which would probably mean different T-Con boards. Would there be any possible visual impairments assuming they do not burn out?

[Moreno83]

Re: What would happen if you put wrong part number main board in the TV?

Are we still talking about the same brand and tv model? You "can't" use a lg power supply in a samsung tv.

Ofcourse they all use the same voltages. 5v/12v/24v etc etc. But all boards are designed for a specific tv/model. However , brands like samsung use mainboards that are found in the same series but have a extra connector. ( 4 hdmi instead of 3 or extra usb etc ). Those mainboards can give problems due to service menu settings.

[Moreno83]

Re: What would happen if you put wrong part number main board in the TV?

As we speak im using a Panasonic power supply from a PZ85E in a PX85E. Different model , different panel. ( full hd and hd ). Had to readjust the voltages for the sparkles to disappear but it works perfectly.

[Pioneerx01]

Re: What would happen if you put wrong part number main board in the TV?

I am not talking about power supplies, I am talking about main boards. If each of the 5+ main boards (all for same make and model of the TV) are for different panel types and panel manufacturers, wouldn't there be any visual problems even though it is the same make and model of the TV? Never mind the power, lets assume it is the same and nominal in all cases.

[tom66]

Re: What would happen if you put wrong part number main board in the TV?

I am not talking about power supplies, I am talking about main boards. If each of the 5+ main boards (all for same make and model of the TV) are for different panel types and panel manufacturers, wouldn't there be any visual problems even though it is the same make and model of the TV? Never mind the power, lets assume it is the same and nominal in all cases.

It could work, but in most cases it doesn't. Black screen or solarised colours are common. Sometimes, the LVDS cable won't fit. Sometimes, the TV will only work in French, or won't support cable/digital TV in your region.

[Moreno83]

Re: What would happen if you put wrong part number main board in the TV?

Tom , black screen you mean back light comes up but nothing is displayed on the screen...right? Isn't that software related?

Correct me if im wrong but is there not software in the small prints connected to the lcd panel itself?

[tom66]

Re: What would happen if you put wrong part number main board in the TV?

Tom , black screen you mean back light comes up but nothing is displayed on the screen...right? Isn't that software related?

Not always...if the main board is wrong it will send bad format signal to the T-con which may or may not display anything.

Correct me if im wrong but is there not software in the small prints connected to the lcd panel itself?

I don't know what you're on about, there is no software in the LVDS cable, traces, or on the T-con (except for ones using a 100Hz FRC)

[Moreno83]

Re: What would happen if you put wrong part number main board in the TV?

No no. Im talking about the small board thats connected to the lcd panel with tab bonding. I attached a picture.

If you for example replace a T370HW02-V6 panel for a V2 panel it won't work. I was wondering , what board or software controls that? Is it software or hardware related?

[ZnsaneRyder]

Re: What would happen if you put wrong part number main board in the TV?

Newer VIZIO and JVC TV are really the same because they are made from AMTRAN.

I put a Vizio board in a JVC 47 inch television (motherboard connectors were the same and everything) and the only issue is that I had to use a VIZIO remote instead.

The Vizio board was $80 LESS, so it was a good fix, and I had a Vizio remote anyway.