60pb660v circuit

[thuss]

Hi

My mate finally decided to change an ic on my 60pb660v ysus board. Unfortunately one of the pads in the process has been removed .

I was wondering can anyone tell me where on the attached photo the ic highlighted in the yellow boxes- leg numbered three connects to even the solder below the pad has been removed?

thanks in advance.

[tvtimmy]

Re: 60pb660v circuit

That pad is not used. Look up the datasheet for that ic and it will probably say n.c.(no connection).

[CapLeaker]

Re: 60pb660v circuit

just run a thin piece of wire from the through hole to the lC's leg. Put some conformal coating over it and be done with it.

[thuss]

Re: 60pb660v circuit

just run a thin piece of wire from the through hole to the lC's leg. Put some conformal coating over it and be done with it.

Sorry I don't know what you mean by the through hole- can't I just leave it floating in the air

tvtimmy you are right it is n.c - not connected

thanks to you both for the advice

[CapLeaker]

Re: 60pb660v circuit

look at the second picture. Isn't the leg in question (pin 3) having a trace to a small solder point? Look where it goes on the other side of the PCB.

[thuss]

Re: 60pb660v circuit

look at the second picture. Isn't the leg in question (pin 3) having a trace to a small solder point? Look where it goes on the other side of the PCB.

theres a jumper on the other side which leg 4 is connected to but nothing else- I think its time forthis tv to to a shop or into the bin - will try one last thread tho thanks

[CapLeaker]

Re: 60pb660v circuit

what is printed on the IC?

[thuss]

Re: 60pb660v circuit

what is printed on the IC?

The original ic was 200D6 which I replaced with an ic with part number 200D1.
The full name is NCP1200D60.

[CapLeaker]

Re: 60pb660v circuit

So pin 3 is the current sense pin. You better hook that one up. Pin 7 has no connection. You can leave that one off.

[thuss]

Re: 60pb660v circuit

Sorry my mistake- I meant pin 7 (n.c not connected) - thank you ( my numbering on the attached photo didn't the data sheet sorry)

Once again thanks for the help I really appreciate it

[R_J]

Re: 60pb660v circuit

The ic's pin#1 are marked with a ►

[thuss]

Re: 60pb660v circuit

The ncp1200D60 chips that my mate got haven't got any arrows/dots on, he assumed that the solid white line (read in conjunction with the writing) indicated where pin 1 was

[R_J]

Re: 60pb660v circuit

The mark ► I refered to is on the pc board. The soic-8 ic should have a small dot for pin 1 but will also have the pin1 edge slightly tapered (see pdf)