Vizio E321VL dead blown fuse

[dskall]

Re: Vizio E321VL dead blown fuse

The repair kit is shopjimmy so should be reliable

[dick_barton]

Re: Vizio E321VL dead blown fuse

Another check on the STRxxxx with the IC out of circuit is to put your meter into diode mode and test between pins 1 and 3 and then reverse the meter leads Should read OL in one direction and 0.4 - 0.7 in the reverse direction.

[ivtec]

Re: Vizio E321VL dead blown fuse

Another check on the STRxxxx with the IC out of circuit is to put your meter into diode mode and test between pins 1 and 3 and then reverse the meter leads Should read OL in one direction and 0.4 - 0.7 in the reverse direction.

Thanks dick_barton;I checked the STR in diode mode,+probe on pin 1 and -on pin 3 is OL,and if i reverse it's 0.520.

[dick_barton]

Re: Vizio E321VL dead blown fuse

The internal mosfet hasn't blown so it looks as though it's working.

[ivtec]

Re: Vizio E321VL dead blown fuse

The internal mosfet hasn't blown so it looks as though it's working.

Thanks,i can't find anywhere SM mosfets KF5250 and regulator KN0N60 and STR W6053N

[ivtec]

Re: Vizio E321VL dead blown fuse

Thanks,i can't find anywhere SM mosfets KF5250 and regulator KN0N60 and STR W6053N

Hi guys; i found this Components Supplier,i only could find STRW6053N correct part #, can you please help me find a cross-reference for Mosfet KF5250 and regulator KNON60,thanks



https://www.utsource.net/Order/Cart?type=101

[dick_barton]

Re: Vizio E321VL dead blown fuse

Can you post photo's of the 2 devices.

[ivtec]

Re: Vizio E321VL dead blown fuse

Can you post photo's of the 2 devices.

Thanks dick_barton;here are the 2 devices

Is this same as KF5250?

https://www.utsource.net/Order/Cart?type=101


Also i found this page which has regulator,is any of these KNON60?

https://www.utsource.net/search.aspx...=KNON60&page=1

[budm]

Re: Vizio E321VL dead blown fuse

"regulator KNON60"
Those two devices are MOSFETs.
So both of them tested shorted?

[ivtec]

Re: Vizio E321VL dead blown fuse

"regulator KNON60"
Those two devices are MOSFETs.
So both of them tested shorted?

Thanks Budm ;You say KN0N60 is a mosfet! if so it's not short it's Open,i can't find it with that part #.


Is any of these good to replace KN0N60- https://www.utsource.net/search.aspx...0KN0N60&page=1


surfmount Mosfet KF5250 it's short

[dick_barton]

Re: Vizio E321VL dead blown fuse

Unfortunately I cannot identify the devices from the part numbers given. Perhaps someone can offer further advice.

[vinceroger69]

Re: Vizio E321VL dead blown fuse

I have been trying too identify the devices too from the part numbers given but cant find any info on them do shopjimmy etc do repair kits with these parts in as maybe your only option.

[budm]

Re: Vizio E321VL dead blown fuse

MOSFET will show open circuit between Gate and Source, Gate and Drain.
Between the Drain and Source it will show the body diode.
That PFC MOSFET by that red PFC inductor will usually fail as shorted circuit and will cause the main AC fuse to blow.

[budm]

Re: Vizio E321VL dead blown fuse

BTW, which fuse that was blown the F601 3.15A fuse for Boosted Voltage that feeds the Inverter section where the 4 SMD MOSFETS are?
Or the main AC fuse that blown.
You can lift one leg of the F601 to isolate the problem.
http://www.shopjimmy.com/vizio-0500-...-inverter.htm#

[petehall347]

Re: Vizio E321VL dead blown fuse

BTW, which fuse that was blown the F601 3.15A fuse for Boosted Voltage that feeds the Inverter section where the 4 SMD MOSFETS are?
Or the main AC fuse that blown.
You can lift one leg of the F601 to isolate the problem.
http://www.shopjimmy.com/vizio-0500-...-inverter.htm#

link is bad ....
Access Denied

You don't have permission to access "http://www.shopjimmy.com/vizio-0500-0412-1300-power-supply-backlight-inverter.htm" on this server.
Reference #18.34367a5c.1490136786.42cd0c

[heavymachines]

Re: Vizio E321VL dead blown fuse

Link works fine on my end.

[ivtec]

Re: Vizio E321VL dead blown fuse

So none of these is a good replacement for KN0N60?


https://www.utsource.net/search.aspx...0KN0N60&page=1

[petehall347]

Re: Vizio E321VL dead blown fuse

Link works fine on my end.

must be a personal thing then .. maybe dont like my country ..

[heavymachines]

Re: Vizio E321VL dead blown fuse

eBay item number:252552313283
This is your best bet i can find. It is SJ so trustworthy..Perhaps somebody knows better source.







Not quite right match i don't think...... might want to call SJ and ask part number on mosfets.

[budm]

Re: Vizio E321VL dead blown fuse

I would lift one leg of that fuse that feeds the inverter circuit, leave the PFC MOSFET out, use the 75~100W lamp in place of the main AC fuse then power up the board to see if the lamp will glow brightly and stays on bright or not. I do not believe that PFC MOSFET is bad. You can test it with bench power supply and some resistor and LED.