Lg 42" plasma model p2pc3d-ud

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

the cap looks to be a Capacitance 22uF
Voltage Rating 16V
Tolerance ±20%

I just order some from digikey.

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

Hum dumb question but from the picture below, can I hook up 5v to the 5v on the board somehow to program the board? The 5v in the top corner has four pins in it.
I was thinking of hooking up 4 AAA batteries [1.56=6.24] or 3 AAA batteries [4.68v] and apply it to the 5v plug. Only problem I am having is how to tell which is the + and - in the plug. [I know noob question.]

I have already installed the software for the jig, I just am waiting on the capacitor for the board.

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

I tried to program the board with the capacitor still missing, it seemed to program it. I got the 3 light with the 4 AAA batteries connected to it. [5.16V]
Only thing unusual was model of the board is two models.

Below is the version of the board

Model version 42V8&X3

New version 42X3_3DCS4 I installed this one..wonder if this is ok? Did not show an error, but wonder if I should have tried to load a 42V8 file?
42V8_4CS01 I can try this one later.


I will not know if this worked until I get the capacitor installed.
Any comments will be welcomed.

Barry

[PlainBill]

Re: Lg 42" plasma model p2pc3d-ud

I tried to program the board with the capacitor still missing, it seemed to program it. I got the 3 light with the 4 AAA batteries connected to it. [5.16V]
Only thing unusual was model of the board is two models.

Below is the version of the board

Model version 42V8&X3

New version 42X3_3DCS4 I installed this one..wonder if this is ok? Did not show an error, but wonder if I should have tried to load a 42V8 file?
42V8_4CS01 I can try this one later.


I will not know if this worked until I get the capacitor installed.
Any comments will be welcomed.

Barry

42V8 and 42X3 are two different LG plasma panels. The 42PC3D series of TVs use the 43X3 panel.

I glanced at the instructions for the programming jig, it specifically mentioned that 5V had to be hooked to the board. Because of the design, you probably can get by with using three batteries in series; I have a bench supply that I would have used, In the absence of a bench supply, the red (+5V) and black (Gnd) leads of the drive connectors on any PC, AT, mini-tower or ATX power supply make a good 5 volt supply.

PlainBill

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

AT or ATX power supply is a great idea.
I wonder which version I should use for the firmware upgrade.
I noticed on the chip it has 42X33DN02A.
I will try the 42X3 file first.
Thanks for comments Bill

[PlainBill]

Re: Lg 42" plasma model p2pc3d-ud

AT or ATX power supply is a great idea.
I wonder which version I should use for the firmware upgrade.
I noticed on the chip it has 42X33DN02A.
I will try the 42X3 file first.
Thanks for comments Bill

If you look at the plasma panel you will find a label that starts with 42X3. To me that is a firm indication you should be using the 42X3 file.

PlainBill

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

Bill I am going by the model number, just a little confused why the logic board has different information. The attachment is what the plasma mal discharge pdf says to go by.

I attached also a picture of my board. I guess the board can be programmed for either panels. Since mine is a 42x3 I will be using it.

[PlainBill]

Re: Lg 42" plasma model p2pc3d-ud

Bill I am going by the model number, just a little confused why the logic board has different information. The attachment is what the plasma mal discharge pdf says to go by.

I attached also a picture of my board. I guess the board can be programmed for either panels. Since mine is a 42x3 I will be using it.

Exactly the conclusion I came to. For what it's worth, I've got an LG quick reference handbook. It shows the V series of panel was up to 42V7, while the 42X3 was the latest in the X series. I wouldn't be surprised to discover a later version of the handbook would show the 42V8 panel.

PlainBill

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

Well Bill the red sparkles are gone. I flashed the original logic board that I removed and replaced the cap on. I bought an extra just in case I programmed it wrong. So far so good, no red sparkles, I have not figured out yet the best adjustments on making the screen look perfect yet.
I will program the other board with the latest firmware too if anyone would like to purchase it.

Thanks Barry

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

I also adjusted all the setting to what was on the back of the panel. I do notice that the contrast is so what blurrier than before. I wonder if something on they y-sustain needs tweaking just a hair? Oh well red sparkles are gone.

Hum I might try the other board I programmed to make sure its not the board that I soldered a cap on.

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

Hi under the ez-adjustment I found an option for sub brightness and contrast. Will this adjust the sharpness on the tv or is it best to leave it well enough alone.

Thanks

[PlainBill]

Re: Lg 42" plasma model p2pc3d-ud

Hi under the ex-adjustment I found an option for sub brightness and contrast. Will this adjust the sharpness on the tv or is it best to leave it well enough alone.

Thanks

Record the present values, see if changing them helps; if it doesn't, return them to the original values.

PlainBill

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

Thanks Bill seems to make the menu screen clearer and sharper. Hum. Picture stays the same.
I haven't got around to putting the other logic board back in to see if I might have messed up on the capacitor installation.

Thanks Bill

Searching google to see if I can find some information on the ez menu.

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

The link below is some good reading on tweaks and mods.
http://www.avsforum.com/avs-vb/showthread.php?t=1372479

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

Tweaking this tv is overrated. After doing some minor tweaks, the tv cut off and I though I blew the z-sustain board. I adjusted all the voltages back to what the back cover calls for and tv is back up and running.

TV looks good. Learned something, if it is not broke, don't break it.

:\

[tom66]

Re: Lg 42" plasma model p2pc3d-ud

Well Bill the red sparkles are gone. I flashed the original logic board that I removed and replaced the cap on. I bought an extra just in case I programmed it wrong. So far so good, no red sparkles, I have not figured out yet the best adjustments on making the screen look perfect yet.
I will program the other board with the latest firmware too if anyone would like to purchase it.

Thanks Barry

Since you can flash 42X3 boards - how much to flash mine? I've got one - but with loads of green sparklies.

[muskin]

Re: Lg 42" plasma model p2pc3d-ud

Hi Tom is your tv the same as mine? I could mail you my extra one and you can see if it helps the green sparkles, or I can program yours either way will be fine with me.

[JasonC]

Re: Lg 42" plasma model p2pc3d-ud

I am wondering if its possible to buy the jig off you or for me to send you my board for re-programming.

I had a rt-42px11 with a blown IPM on the YSUS board. Replaced the board and now I have a bad case of the green sparkles.

[Clydeuk]

Re: Lg 42" plasma model p2pc3d-ud

Hi muskin, Bill pointed me in your direction after a post on usenet. Do you still have the programming jig. I'm trying to remove maldischarge on a 42V7 display and have already recapped the YSUS and done a full setup as per the LG manual and the PDP label. I notice you are the other side of the Atlantic

I would like to apply the maldischarge ROM and see if it cures the fault. In all other aspects the display is great. The TV does however have a main board issue where only the digital inputs (HDMI etc.) give a good picture (analogue signals are showing only saturated colour with low brightness/contrast).

Is there any way of doing this without the jig? Could the flash ROM be programmed directly?

How much would you charge to flash the control board for me (if you still have the jig?). The thing I want to do is weigh up the cost of a flash, control board (with updated software) or scrapping the TV for parts.

Read this thread with great interest, seems you may have had the same problem, did it cure it completely?

[Clydeuk]

Re: Lg 42" plasma model p2pc3d-ud

OK I'm getting in quite deep on this now, I have the BIN file I need, I'm now looking at the actual flash memory i.c itself. I've identified the device type and am trying to find a very cheap way of programming it, I'm away from home right now and forgot to take the number off the chip. I have a rough idea though. Never programmed a chip before (other than computer BIOS through the vendor's programs). I might screw this up totally, but maybe I'll learn something.

I can buy a programmer on ebay (not convinced it will be much good), or I can try and find a schematic and build something that will hook up to a PC. Looks like I may have to remove the chip to program it though, not sure, and it might have some protection code that prevents access. I must be mad.....someone save me