42PJ350 click noise

[mesersmith]

I've read all thread about this problem in this forum.
I tried everything I read about, but same thing.

So, I disconect the connector from Y-sus.
Now, I have only the main board connector on.
I have only the 5V standby.
In fact, with a scope I see that the power supply with 6 pin regulater works, but works for standby, I mean I have burst on chopper out, but low frecunency. When rellays click, the burst goes higher frecuency, wich means that the source is trying to start.
The 2 resistor 22ohmi are ok.
I changed D304, but same clicks.

I tried to find a schematic for this power source, but with no succes.
Can any body help me with some advice?


LE: With connector prom PS to main board removed, I Connect M_ON to 5VSTBY, RL_ON to 5VSTBY using the 500 ohmi resistors. No Vs/Va/17V, just 5v standby.

[flocko]

Re: 42PJ350 click noise

is this the EAY60968801 power board ?if it is IC701 (F431MSF17) could be faulty and possibly R108/9/10/11/12/13 on the bottom of the board, And stops power on. Flocko

[mesersmith]

Re: 42PJ350 click noise

No. The PSU board is EAY60912401.
And thanks for your reply.

[sordids999]

Re: 42PJ350 click noise

http://www.ohmsupplies.co.uk/EAX6141...-3PAGC10014A-R

check the following it may help you

[mesersmith]

Re: 42PJ350 click noise

I don't think that is something very complicated, because sometime is working great for several minutes. Aftar that, the clicks begins for half an hour and then is working again. And so on.

[mesersmith]

Re: 42PJ350 click noise

Unfortunately, I didn't find anything wrong. If you have any advices, I'll be grateful.

[Gimi]

Re: 42PJ350 click noise

Hi. I have the clicking noise from the same TV. Ysys board was shorting, replaced 2x30f124 and ysys now OK. The problem is on my zsys board the diode D41 is showing short when on board and ok when desoldered. Any one can help?thanks

[michael dranfield]

Re: 42PJ350 click noise

I don't think that is something very complicated, because sometime is working great for several minutes. Aftar that, the clicks begins for half an hour and then is working again. And so on.

On the net check out a company called Charles Hyde and son in Pocklington, in the search box put this part number KT360 , this is the kit you need for intermittent clicking.

[ReeceyBurger123]

Re: 42PJ350 click noise

Resolder coils on Zsus the diode is fine as its connected with the resistors which have a low enough ohms across them to show up as S/C.

[Gimi]

Re: 42PJ350 click noise

Resolder coils on Zsus the diode is fine as its connected with the resistors which have a low enough ohms across them to show up as S/C.

Hi. Resoldered coils, is still clicking. When trying to power up voltage goes up and then it clicks and voltages back down. With xsus disconected from controler board every voltage stays normal

[sordids999]

Re: 42PJ350 click noise

Just recently repaired one of these the xsus was faulty but upon fixing it had also blew the Ysus just an idea

[ReeceyBurger123]

Re: 42PJ350 click noise

Yes when the coils for the erc on the Zsus fail they can kill the fets (normally 30f128 pn) on the ysus.

[Gimi]

Re: 42PJ350 click noise

Yes when the coils for the erc on the Zsus fail they can kill the fets (normally 30f128 pn) on the ysus.

Yes I have another 30j124 mosfet gone bad on ysys,will replace that and will update. Thanks for ur help. Best forum