What is this SC board component?

[Biruslapio]

I'm trying to fix a panasonic plasma,P50S10B model,its SU was shorted,and caused SC board to fail,IC791,the orange one in the picture(i had a lot of trouble to desolder it with a 40W soldering iron that's why it looks like that) was shorted,couldn't buy it separatedly,I mistakenly bought a board for P42S10B,the 42 inch model,i have that TV also,tested the board and it works,then i inspected each board side to side.

The only difference is 2 resistors which I corrected and this IC791,it's black instead of orange,but the service manual list nothing about this part,can't any find info on it,I want to improvise or modify it so i can use on this TV,when the TV is powered on,panel does nothing and 7 blinks,before i removed IC791 from the original board the screen would go white and rainbow colored.

PN is the same for both boards,TNPA4829.
service manual

[tvtimmy]

Re: What is this SC board component?

There are 3 sc boards with that number. They all have a different suffix . I see some capacitor differences and im sure alot of smd differences I cant. Tw2005 may have a lot more info for you.

[Biruslapio]

Re: What is this SC board component?

I did it,it's fixed,almost gave up on this BS,didn't need to replace IC791/IC16791,it's a DC-DC converter,with this repair I gained a lot of experience on service manuals and flowcharts,parts different total:

Component-------42 inch----------50 inch
R16845(R485)----86.6k(8662)------76.8k(7682)
R16831(R831)----61.9k(6192)------71.5k(7152)
R16832(R832)----73.2k(7322)------71.5k(7152)
R16919(R919)----7.5k(7501)-------8.25k(8251)
R16870(R870)----68k--------------100k--------------------50 inch board had a 68k,while service manual for P50S10D lists 100k,didn't swap it.
D16871(D871)----MAZ83300ML(-33)MAZ82400ML(-24)------Zenner diodes,-33 is 33V and -24 is 24V.
VR16841 VSCN---20k--------------R16880(0)--------------50 inch board doesn't have VSCAN pot.,it's pre-adjusted on R831 in series with R880(0 OHM) and R832.
4 big inductors.
3 cables that connects SC with SU and SD boards(P42 are white,P50 is black).

Q16001/2 2PG0060000RP B1JADN000006>didn't replace them,couldn't locate it on the board.
Q16022/3 B1JADP000004 B1JADN000006>same

All voltages are fine,TV has a nice image,pity on the black level that needs panel EEPROM reset to look not gray.
This TV doesn't come with any fans! No wonder SC board fails a LOT,430W(full white) consumption and passive cooling.I installed 4 fans from a P50VT20B on it,should last a good while now.