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Search: Posts Made By: Brucetafer
Forum: General Electronics Technical Discussion 09-30-2018, 01:28 PM
Replies: 2
Views: 246
Posted By Brucetafer
Re: Mosfet goes from reading to OL

I just changed 2 brand new mosfets that tested perfectly fine, but wouldn't close the gate with a load... so just replaced them with budm recommendations..
Forum: General Electronics Technical Discussion 09-30-2018, 01:26 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

Welp bud you knocked it out of the park. I pulled that chip and its locked up cock stiff. Changed the mosfets and chip and works a treat... stupid cap must have totalled that thing.. amazing job,...
Forum: General Electronics Technical Discussion 09-25-2018, 06:34 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

yep, you were right.. Ordered a new one! ill post up after its fixed (hopefully)
Forum: General Electronics Technical Discussion 09-24-2018, 08:11 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

S2104 IC.

https://www.infineon.com/dgdl/irs2104.pdf?fileId=5546d462533600a40153567633f727a1
Forum: Troubleshooting TVs and Video Sources 09-20-2018, 11:12 PM
Replies: 13
Views: 253
Posted By Brucetafer
Re: RCA LED55c55r120q

well guys, you nailed it.. its was the eprom, changed it for the one on shop jimmy, and boom works like a charm... I replaced the burned resistor and cap on the old power supply that blew out...
Forum: General Electronics Technical Discussion 09-20-2018, 11:06 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

received the new ones, and they sent 3306G which no idea the difference.. Installed the new mosfets, and the unit worked for 1 second, then died, now is shorted out, and drawing tons of amps.. this...
Forum: General Electronics Technical Discussion 09-17-2018, 03:15 AM
Replies: 5
Views: 268
Posted By Brucetafer
Re: Solder paste - Syrine vs Container?

no, the syringe is maybe 10 grams less of material.. but you get about the same after the waste product of the jar, i.e. left on your stick etc.. i only have the jar for dipping leads into for...
Forum: Troubleshooting TVs and Video Sources 09-17-2018, 02:51 AM
Replies: 13
Views: 253
Posted By Brucetafer
Re: RCA LED55c55r120q

ok, well the seller wont accept a return, can I buy the proper eprom and try that? theres no other options to replace the whole board except one guy wants 125 bucks for it on eBay..
Forum: Troubleshooting TVs and Video Sources 09-16-2018, 12:51 PM
Replies: 13
Views: 253
Posted By Brucetafer
Re: RCA LED55c55r120q

replaced the power board, and still dead, the main board comes either tomorrow or tuesday.

I just noticed that I ordered 55120re01m3393lna35-q4 instead of the 55120re01m3393lna5-q4 same TV, will...
Forum: Troubleshooting TVs and Video Sources 09-15-2018, 11:36 PM
Replies: 13
Views: 253
Posted By Brucetafer
Re: RCA LED55c55r120q

currently its all torn apart, the on off signal does work to the main board. so at least I know that works.. the low voltage to the on off on the power board concerns me.. and the blown area on the...
Forum: General Electronics Technical Discussion 09-15-2018, 11:32 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

they are junk chinese, can't even read the brand its so badly printed.. no bulge or leak.. I replaced with nichicon and checked everything and seems to be close to spec.. im just waiting on the...
Forum: General Electronics Technical Discussion 09-14-2018, 08:42 AM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

so after removing all the caps and 2 rectifiers, one is fried, one cap is half of its rating and the main cap 3300uf 50v was only 110uf... so my guess its that it was toasted from too much current.....
Forum: Troubleshooting TVs and Video Sources 09-14-2018, 08:32 AM
Replies: 13
Views: 253
Posted By Brucetafer
Re: RCA LED55c55r120q

sorry the rest were grounds..
Forum: Troubleshooting TVs and Video Sources 09-14-2018, 08:24 AM
Replies: 13
Views: 253
Posted By Brucetafer
Re: RCA LED55c55r120q

well i didn't notice it either, back of the power board upper right hand is a nice shit stain... i guess im going to just buy both boards since they are cheap..
Forum: General Electronics Technical Discussion 09-13-2018, 10:45 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

yeah that goes straight into the motor, which caused it to run away.. the board is SUPER basic, If i can get a picture ill post it so you can see..
Forum: General Electronics Technical Discussion 09-13-2018, 10:05 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

thanks so much bud, Its been YEARS since I went to school for this crap, i don't remember much of it.. but yes, gate was open, but with tons of resistance, and it was open S-G and shorted D-G so both...
Forum: Troubleshooting TVs and Video Sources 09-13-2018, 09:34 PM
Replies: 13
Views: 253
Posted By Brucetafer
RCA LED55c55r120q

TV is 2 years old, worked fine for the entire time, then last couple weeks it wouldn't turn on, it stayed red led standby unless I unplugged it and plugged it back in and then it would turn on.. ...
Forum: General Electronics Technical Discussion 09-13-2018, 12:24 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

Yes one is completely shorted, and the other has an open gate.

https://www.digikey.com/product-detail/en/infineon-technologies/IRFB3306GPBF/IRFB3306GPBF-ND/2096585

that's what I ordered..
Forum: General Electronics Technical Discussion 09-13-2018, 08:32 AM
Replies: 5
Views: 268
Posted By Brucetafer
Re: Solder paste - Syrine vs Container?

thats just their part number, i have the same stuff, not really that good in my opinion, but it works for the price for sure.. my syringe is 1000x easier and cleaner to use and doesn't get...
Forum: General Electronics Technical Discussion 09-13-2018, 08:27 AM
Replies: 11
Views: 687
Posted By Brucetafer
Re: September equipment offer (u.k.)

wow thats a screaming deal for you guys...
Forum: General Electronics Technical Discussion 09-13-2018, 02:19 AM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

oh right, of course, the one is dead short on all 3, doesn't matter which way I test it... i also hooked it up to my component tester and it shows 1 resistor of .2 ohms. the other one is showing...
Forum: General Electronics Technical Discussion 09-12-2018, 11:47 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

what does that mean? im looking at them now and don't see anything other than r7 j9 and the other says 0C or OC NN both have the I *Diode sign* R
Forum: General Electronics Technical Discussion 09-12-2018, 11:45 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
Re: mosfet question

wow, that's sad to know they are putting 10 year old stuff into a 1500 dollar underwater seascooter that could potentially kill you.. this one is stuck in full blast and it damn near dragged me to...
Forum: General Electronics Technical Discussion 09-12-2018, 08:40 PM
Replies: 24
Views: 1,034
Posted By Brucetafer
mosfet question

I have a seadoo RS1 seascooter that is stuck on and its pretty basic inside.. I have narrowed it down to a mosfet that is totaled, showing open on all 3 legs. part nmber is FB3306 on both but one has...
Forum: Troubleshooting TVs and Video Sources 08-29-2018, 01:59 AM
Replies: 11
Views: 388
Posted By Brucetafer
Re: sansui dvd combo tv, brand new from 2013

finally back in the states with some internet thats not 100 bucks a day... Im getting back at it, can't find anywhere online what the probe voltage should be at the ribbon cable.. Im guessing 5.1 12+...
Showing results 1 to 25 of 40

 
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