sony 55ex723 fuse resistor 0.1ohm help

[zomi]

I have a sony 55ex723

With the 2 shorted transistors and a blown 0.1 ohm 1/2w resistor

markings on the resistor are 0.1 o 1J6 where o=ohm

Can I just replace thise with a 0.1 ohm resistor 1/2 w
Or do i need to source like for like...
If so where,

thanks

[zomi]

Re: sony 55ex723 fuse resistor 0.1ohm help

I can get a 0.1 ohm but 1 watt resistor...

http://uk.farnell.com/vishay-dale/lv...tor/dp/1653230

or

something like this

http://uk.farnell.com/multicomp/mc14...-1w/dp/1306690

[zomi]

Re: sony 55ex723 fuse resistor 0.1ohm help

just to close up.

Went for this in the end

http://uk.farnell.com/te-connectivit...w-5/dp/2330244

Replaced the transistors and all is up and running,

[retiredcaps]

Re: sony 55ex723 fuse resistor 0.1ohm help

I'm not 100% sure, but that looks like some sort of cement resistor??? J means 5% tolerance. I'm not sure what the 6 is after it.

My understanding of cement resistors is minimal, but I thought there were generally needed to dissipate much higher wattage than 0.5W? Something like 3 to 5W depending on the size?

Something like these?

http://www.token.com.tw/resistor/resistor-sq.htm

[zomi]

Re: sony 55ex723 fuse resistor 0.1ohm help

From the schemtics its a 0.1ohm 1/2w rating fuse resistor..

I assume they have gone with cement type to minimise dammage when it blows ?

It works in its current state I think I have found a supplier for the exact type
But that will take time to come in..

[budm]

Re: sony 55ex723 fuse resistor 0.1ohm help

It is also flame -proof type resistor.

http://dkc1.digikey.com/us/en/tod/Bo.../FWSeries.html

[zomi]

Re: sony 55ex723 fuse resistor 0.1ohm help

i couldn't find one that was flame proof and 1/2 watt rating..

only ones I was finding were 1-3 watt rated ones...

[zomi]

Re: sony 55ex723 fuse resistor 0.1ohm help

Would it be unwise to use a 1watt rated resistor in place of the 1/2 watt >

[budm]

Re: sony 55ex723 fuse resistor 0.1ohm help

So the replacement is fusible type? When fusible goes open circuit, it also will not allow the arc over to occur.
"Would it be unwise to use a 1watt rated resistor in place of the 1/2 watt >" see the PDF.

[zomi]

Re: sony 55ex723 fuse resistor 0.1ohm help

I was afraid of that..
I have found a like match from ebay maylsia
at a reasonable price...

But I now have 4 blink error on the set
:-( it happened after putting the set all back together

So now to strip and disconnect the bl error wire and see what happens..

[Peter Simpson]

Re: sony 55ex723 fuse resistor 0.1ohm help

Hello All,
I too need this 0.1 Ohm 500 mW(1/2 Watt) wirewound ceramic resistor, but guess what, I cant find it anywhere on the internet.

Does anybody know where I can order this fusible resistor from, the smallest value I can find is 2 Watts. I'm willing to order it from anything on this vast planet of ours, but UK wise I just can't find the thing.

Thank you...

[Peter Simpson]

Re: sony 55ex723 fuse resistor 0.1ohm help

Update:

Hello people,
Well after looking all over the internet and coming to the conclusion that getting the original wirewound ceramic fusible resistor for the KDL-40EX723 was just an impossibility, I decided to go for an 0.1 Ohms 0.75 Watt wirewound resistor (see attached photo).

The TV has been running for 8 hours straight now with no issues whatsoever, and the resistor is running nice and cool to. I also changed 2 MOSFETS, Q6701 and Q6702 as they has popped, I also changed resistor R6548 for the one I mentioned previously.

Cheers to @Shepp and your previous post about your KDL-40EX723

[bullentätzchen]

Re: sony 55ex723 fuse resistor 0.1ohm help

Hello together,

I actually have the same problem at an Sony KDL-46EX725, power supply type: APS-298, Sony-No. 1-883-917-11.
The two MOS-FET's Q6702+Q6703 ( STP9NK50ZFP) blow up (short cutted pins).

AND the protection before them, the fuse-resistor R6548 are blown also.
The problem is not only that the 0,1Ohm 1J6 ist still not available at all - also no data sheets are available to find really compatible versions.
This sort of resistors seems to be banned in near time. All distributors sems to give them a "nice last greeting".
What I found here in germany (but could be sold worldwide) is this one where I think it's the best actual available compromise of 0,1Ohm, 0,75W:

Manufacturer Vitrohm: BFW237-0 10T 0R1, => insulated, flame-retartand resistor, fail-safe, in an Bakelite Moulded case

Distributor-link: https://www.distrelec.de/de/drahtwid...omSuggest=true

datasheet: https://cdn.badcaps-static.com/pdfs/...2ebc2af5a7.pdf

[zomi]

Re: sony 55ex723 fuse resistor 0.1ohm help

I used

https://uk.farnell.com/te-connectivi...w-5/dp/2330244

it worked fine
tv is still in use
hope that helps