SONY KDL 43w805c does not accept commands

[Diah]

Re: SONY KDL 43w805c does not accept commands

Yeah, i found the same but it looks it does not work. And can see the comments under the post, seems nobody has success with that rollback
I tried and using your advice, Diah

It looks i need to looking to buy Main board

no need to buy new mainboards...

take out the heat sink of the CPU and show what we have under it

[Diah]

Re: SONY KDL 43w805c does not accept commands

by the way... when it start at select language did you hear the music ? if yes you increase the volume or decrease from side panel... is there response and did you have notification bar ?

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

by the way... when it start at select language did you hear the music ? if yes you increase the volume or decrease from side panel... is there response and did you have notification bar ?

Yeah, i can hear the music and the volume responds but cannot see notification bar every time. But he volume is working - i can turn it up or down even i can or not see the notification volume bar.

[Diah]

Re: SONY KDL 43w805c does not accept commands

take out the heat sink... it need heating to repair the BGA ... by removing the heat sink we can tell from which side (PIN ) on ship are responsible

[Diah]

Re: SONY KDL 43w805c does not accept commands

one things more before we go for heating... your photo https://www.badcaps.net/forum/attach...5&d=1610728654

the side panel and led indicator IR receiver socket... are they connected with ribbon flat cable to the middle of the mainboards?? if yes... did you inspect under loop the end silver pins of the cable if any short or broken ???? yours issue very strange

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

take out the heat sink... it need heating to repair the BGA ... by removing the heat sink we can tell from which side (PIN ) on ship are responsible

This is it:

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

one things more before we go for heating... your photo https://www.badcaps.net/forum/attach...5&d=1610728654

the side panel and led indicator IR receiver socket... are they connected with ribbon flat cable to the middle of the mainboards?? if yes... did you inspect under loop the end silver pins of the cable if any short or broken ???? yours issue very strange

No, they are not with ribbon cables:

[Diah]

Re: SONY KDL 43w805c does not accept commands

ok then heat this chip with hot air gun specially the middle to left side facing the plug which goes to side panel

when you heat it try dont move the boards ...leave it cool then put it back

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

I did in #27

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

ok then heat this chip with hot air gun specially the middle to left side facing the plug which goes to side panel

when you heat it try dont move the boards ...leave it cool then put it back

For how long i need to heat it?

[Diah]

Re: SONY KDL 43w805c does not accept commands

which heat equipment do you have ? show me to let the work being perfect this area i mean

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

which heat equipment do you have ? show me to let the work being perfect this area i mean

Errmm, that is the problem. I do not have proper electronic hot air gun. I've got one bigger and i am not sure if i can use it for that.

[Diah]

Re: SONY KDL 43w805c does not accept commands

Errmm, that is the problem. I do not have proper electronic hot air gun. I've got one bigger and i am not sure if i can use it for that.

dont worry LOL.... do you mean the one used for Pipe sanitary?

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

Haha, no not for pipes I think i can use my one:

[Diah]

Re: SONY KDL 43w805c does not accept commands

Haha, no not for pipes I think i can use my one:

okay ... but you need first to cover all around the chip for example the glue plaster used by wall or car painting... to avoid the blow hot air fly one SMT parts near to the chip.

after that let this gun to the maximum heat ,,,let it run far from the board until it reach the high temperature if it was 350 degree, then face it to the chip area and calculate 6 second .. such 11 , 12, 13, 14, 15, 16 then leave it cool down

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

Done! Now i need to find my thermal paste

[Diah]

Re: SONY KDL 43w805c does not accept commands

Done! Now i need to find my thermal paste

try it before you apply the paste

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

Can i try it without this heat sink just for 1min?

[Diah]

Re: SONY KDL 43w805c does not accept commands

Can i try it without this heat sink just for 1min?

you can for more than 10 minute too

[Dobsuk]

Re: SONY KDL 43w805c does not accept commands

Nope, it is absolutely the same Shall i heat it again?