Element ELCHW402 resistor question

[Jason616]

I was doing some testing of components on the power supply board in this tv and came across 2 resistors that appear to have over heated ..

They are marked 3W0R15K..

Does anyone know the value of these ?

Wondering if they are 15 ohm or 15K ohm?

Wondering since they measure 0.2 ohms

[cliff_hootarski]

Re: Element ELCHW402 resistor question

http://www.electronicspoint.com/thre...gs-value.5284/

[dick_barton]

Re: Element ELCHW402 resistor question

Ceramic resistors 3 watts, 0.15 ohms

[Jason616]

Re: Element ELCHW402 resistor question

Ok replaced the resistors and blue poly cap ..

Power supply board is working correctly ..

Tv still won't power up ..

If I jump the 5 volts to the standby pin all voltages are correct so the main board has problems ..

Anyone know if any common problems with the main board ?

Also can the main boards be repaired or once they stop working the only option is to replace them ?

[dick_barton]

Re: Element ELCHW402 resistor question

Can you list the voltages read when in standby out of standby and the pin names

[Jason616]

Re: Element ELCHW402 resistor question

In standby without jumping 5vopts to pin 3 stb

Gnd: 0.00
Gnd: 0.00
Stb: 0.01
5v_s: 4.77
5v_s: 4.77
12v:0.00
12v:0.00
Gnd:0.00
BR 1:0.00
SW: 0.00
Gnd:0.00
Gnd :0.00
5vm: 0.00
5vm: 0.00

Not in standby when I jump 5v_s to stb

Gnd:0.00
Gnd:0.00
Stb:4.93
5v_s:4.93
5v_s: 4.93
12v: 11.71
12v: 11.71
Gnd:0.00
Br 1: 2.87
Sw :0.02
Gnd:0.00
Gnd:0.00
5v m :5.24
5v m: 5.24

[dick_barton]

Re: Element ELCHW402 resistor question

Sorry about this but as above but with the power supply connected to the main board without using the resistor to jumper the supply.
The only pin I'm unsure of is what SW is for.

[budm]

Re: Element ELCHW402 resistor question

Sw = bl-on.
Br = dim
STB = PSON

5v_s: 4.77. 5VSTBY is on the low side.