Toshiba 55SV670U Dead Set

[tech2014]

I found an open fusible resistor on the power supply. I suspect the voltage regulator is bad and thats what blew the resistor. Part number of regulator is STRY6456.

Can someone help me with the resistor? See pic below. I want to know where I can order the resistor and voltage regulator.

[budm]

Re: Toshiba 55SV670U Dead Set

http://www.ebay.com/itm/1X-5J2R0-2-o...-/141186414306

More likely that it is the inrush current limiter and it is connected in parallel with the relay, if the relay contacts are bad then this resistor will burn up.
Without good clear pictures of the board, I cannot give you any more info.

[tech2014]

Re: Toshiba 55SV670U Dead Set

http://www.ebay.com/itm/1X-5J2R0-2-o...-/141186414306

More likely that it is the inrush current limiter and it is connected in parallel with the relay, if the relay contacts are bad then this resistor will burn up.
Without good clear pictures of the board, I cannot give you any more info.

Here is a pic of the power supply, and a pic of the relays near the blown resistor.

[budm]

Re: Toshiba 55SV670U Dead Set

https://www.badcaps.net/forum/attach...3&d=1460762186
Bottom side of that picture too please, so far it does look like that relay's contacts are connected to that resistor.

[budm]

Re: Toshiba 55SV670U Dead Set

Do you remember this?
https://www.badcaps.net/forum/showth...=toshiba+relay

[tech2014]

Re: Toshiba 55SV670U Dead Set

Here is a pic of the foil side where relays are located. Hope the pic is clear enough.

[budm]

Re: Toshiba 55SV670U Dead Set

Zoom out so I can see the two pads of the resistor and the relay pads.

[tech2014]

Re: Toshiba 55SV670U Dead Set

Do you remember this?
https://www.badcaps.net/forum/showth...=toshiba+relay

Yup. I thought the board looked familiar lol. All I did was replaced the resistor and its been working fine since then. The relays tested good at the time.

[budm]

Re: Toshiba 55SV670U Dead Set

It is connected in parallel with relay contact.
Pictures provided by shopjimmy.
Toshiba 75014973 (PE0702A, V28A000962A1) Power Supply Unit

[tech2014]

Re: Toshiba 55SV670U Dead Set

It is connected in parallel with relay contact.
Pictures provided by shopjimmy.
Toshiba 75014973 (PE0702A, V28A000962A1) Power Supply Unit

So those are just standard 5v and 12V omron relays. Can I order these through digikey or mouser?

I had a 2.2ohm 5W resistor in my shop. I soldered it in and the tv now powers up, so not a voltage regulator

[budm]

Re: Toshiba 55SV670U Dead Set

If the relay is good then there should be no AC Voltage drops between the two legs of the resistor when TV is turned on, or you can check to see if the resistor gets hot or warm.