TO-220 job help?

[ivtec]

Hi guys i trying to fix a Philips 46pfl5505d/f7 dead ,i found D951 short ,now i red in this thread link bellow, to add a T0-220 with heat sink in place of D950,D951,
i have this To-220 see link ,is this a good one for this job? thanks

http://www.mouser.com/Search/Product...4-APT10SCD120K





https://www.badcaps.net/forum/showthread.php?t=48765

[CapLeaker]

Re: TO-220 job help?

what original part # is D951 in yours? Do you want to replace the SB260 with that?????
Maybe read my post number 32 in that thread. Replacing a SB260 (60V, 2A) with a 1200V 10A Schottky isn't a good idea.

[ivtec]

Re: TO-220 job help?

what original part # is D951 in yours? Do you want to replace the SB260 with that?????
Maybe read my post number 32 in that thread. Replacing a SB260 (60V, 2A) with a 1200V 10A Schottky isn't a good idea.

thanks CapLeaker; I was going to replace D951 and D950 both SB260 with a single T0 220

http://www.mouser.com/Search/Product...4-APT10SCD120K

You think i should use 8TQ100 (8A/100V) TO-220 with heat sink instead?


http://uk.rs-online.com/web/p/rectif...iodes/5445767/

[CapLeaker]

Re: TO-220 job help?

that's better... a bit of overkill (now that wont blow anymore), but good. Just be careful with the heat sink as it is connected to cathode of the diode.

[ivtec]

Re: TO-220 job help?

that's better... a bit of overkill (now that wont blow anymore), but good. Just be careful with the heat sink as it is connected to cathode of the diode.

Thanks CapLeaker; i'll post results.

[ivtec]

Re: TO-220 job help?

Hi guys; update and great success on the Philips 46pfl5505d/f7 repair and due this great Forum with the great tip on modifying and improving the circuit with the T)-220 to avoid future failure, see pic attach. thanks to all one more TV saved from the landfill.

https://www.badcaps.net/forum/showthread.php?t=48765

[ivtec]

Re: TO-220 job help?

Hi guys: well i spoke to soon,i did not check with video connected in the seller since i did not have signal where i did repair it,i trusted it cause it had the Phillips logo and menu with inputs,so i brought it upstairs, and connected video and nothing ,no video i don't have the remote control,what other stuff should i look for? thanks.

[Agent24]

Re: TO-220 job help?

Maybe it needs a reset (corrupt EEPROM settings?) - but you would need the remote for that I suspect.

Did you try all the inputs or just tuner?

[ivtec]

Re: TO-220 job help?

Maybe it needs a reset (corrupt EEPROM settings?) - but you would need the remote for that I suspect.

Did you try all the inputs or just tuner?

Thanks i thing the tv is alive could get the tuner with a couple channels already, but without remote is hard, also i 'm trying to update firmware,i have a fat32 USB stick, i've download from here, see link; but doesn't show the file on the stick,i use zip rar, maybe it's not Rar but some other type of zip,can you help here please, thanks



http://www.p4c.philips.com/cgi-bin/c...=46PFL5505D/F7

[CapLeaker]

Re: TO-220 job help?

Hi guys: well i spoke to soon,i did not check with video connected in the seller since i did not have signal where i did repair it,i trusted it cause it had the Phillips logo and menu with inputs,so i brought it upstairs, and connected video and nothing ,no video i don't have the remote control,what other stuff should i look for? thanks.

At least you got the PSU repaired. It looks about as mean as I had pictured it.
Now you have a main board issue? Can we have a straight shot, high resolution picture of it? Was that TV a lightning special or something?

[stj]

Re: TO-220 job help?

reading the instructions would help.

format the stick with FAT(16)
and unzip the file onto it.

[saddle_au]

Re: TO-220 job help?

If you have a smart phone, there are apps that will pulse the correct codes for different TVs.

http://www.cnet.com/au/news/turning-...ter-tv-remote/
https://play.google.com/store/apps/d...te.phone&hl=en

[ivtec]

Re: TO-220 job help?

At least you got the PSU repaired. It looks about as mean as I had pictured it.
Now you have a main board issue? Can we have a straight shot, high resolution picture of it? Was that TV a lightning special or something?

I was able to do firmware update and rescaned OTA channels and no channels were found and no sgnal in all inputs,it looks like E prom,will i be able to repair this ?,or do i have to get a Main board?


You say:Was that TV a lightning special or something? you mean lightning strike ? i don't know, i found the Tv in the dumpster, all i did was repair the Power Sup.

[ivtec]

Re: TO-220 job help?

I was able to do firmware update and rescaned OTA channels and no channels were found and no sgnal in all inputs,it looks like E prom,will i be able to repair this ?,or do i have to get a Main board?


You say:Was that TV a lightning special or something? you mean lightning strike ? i don't know, i found the Tv in the dumpster, all i did was repair the Power Sup.

Can you point me to the e prom please;


http://www.ebay.com/itm/Philips-46PF...3D262121429081

[CapLeaker]

Re: TO-220 job help?

So how did you get the TV to display something if it is dead on all inputs?
The EEPROM is mostly an 8 legged IC (4 on both sides). It can be a 16 legged one too, but those aren't that common. Look on your board close to the main IC and verify the part number.

[ivtec]

Re: TO-220 job help?

So how did you get the TV to display something if it is dead on all inputs?
The EEPROM is mostly an 8 legged IC (4 on both sides). It can be a 16 legged one too, but those aren't that common. Look on your board close to the main IC and verify the part number.

Thanks CapLeaker; i found this Main board on Ebay,see link; i think the e-prom is 16 leg, i don't think i can solder these back to the board,also can you please tell me how to remove the connection from the board, the plastic head,i disconnected the flex although same plastics peaces broke,as you see on the Ebay board it doesn't have that plastic end,see my pic attach.
I also don't know if i can trust this guy on E bay almost 100bucks for the main board is kinda steep

Note;at first i was able to get a few channels on TV mode from the OTA antenna,but after i re-scanned the tuner the tuner did not pic up no more channels therefore could not get any channels anymore,i'm gonna try to heat the BGA and see if hdmi input will show.


http://www.ebay.com/itm/Philips-40PF...3D142191856605



There are some pics of the whole board,not very good pic cause of my crappy Cam.

[CapLeaker]

Re: TO-220 job help?

Aaah! Weird why it would work once then not anymore. The EEPROM is 8 legged. I don't see any 16 legged ones there. They look like the 8 legged ones in the middle of the board where the screw hole is. I count about 7 of them on the board. However, all you can do is try to find it and freeze it with a can of air upside down, turn the TV on and see if all is O.k. Could be also BGA. Problem is I couldn't find a replacement EEPROM for it. Did you try a factory reset yet? For some reason if I read the whole thread it doesn't sound like an EEPROM problem to me, because the TV is responding and doesn't do any other weird shit besides not displaying anything.

[dick_barton]

Re: TO-220 job help?

Read the part number printed on top of the 8 legged IC and google them to find which one is the eeprom.

What number is on IC3102

[ivtec]

Re: TO-220 job help?

Thank you guys; today i took out main board and used the Heating gun and heated up the CPU and the whole board, then put it back, for now the HDMI inputs are ok, i used my Roku to check,only the Outdoor Antenna,OTA chan won't scan channels,before i did a OTA rescan i had a few channels ,maybe i need to get in the service menu and set Factory default,i have downloaded the service manual from here,see link? .Also this Main board is a pain in the Butt to take out ,and can't check nothing with it in place all the Components are Hidden under the metal casing.

The IC 3102 is AT 24C16BN-SH-T (Memory}

i'm going to buy a original Remote control,hope i get one,and will keep you posted,
if you guys have any idea why i can't get OTA channels when i rescan,please advice what could be,thank you all for your great help and thanks BadCaps for this great Forum.


https://www.manualslib.com/manual/85...l5505d-F7.html

[CapLeaker]

Re: TO-220 job help?

thats the eeprom
But you don't have an EEPROM problem anyway.