Digital TV

lassipr · 19th April 2012, 10:38 AM

Not quite audio but close(?).
Do anyone know where could I buy a turner pack (those closed shiny ones inside) for digital tv set top box. They seems to be very weak parts, and I was thinking to get them as spares. So far I found only stock sellers.

Mooly · 19th April 2012, 11:39 AM

Not sure what you mean by "a turner pack".

Tuner ? perhaps is you post a picture of what you are referring too

lassipr · 20th April 2012, 09:26 AM

RF part in closed tin box, in every RF reciever on transistor age. Part where antenna usually is connected.

DF96 · 20th April 2012, 11:01 AM

That is the VHF/UHF tuner. Unless you get lots of electrical storms unlikely to be unreliable. The tuner may be a generic off-the-shelf item, or sometimes specially designed for the particular unit.

The PSU (and other electrolytic caps) is usually the STB weak point.

Mooly · 20th April 2012, 11:09 AM

The tuner for a STB is just as likely to be all SMD (surface mount) on the main PCB even though it does have screening cans around and over it.

Make and model maybe

marce · 21st April 2012, 11:45 AM

And messing about with rf designs is not always reccomended, very touchy.

19th April 2012, 10:38 AM	#1
lassipr diyAudio Member Join Date: Oct 2009	Digital TV Not quite audio but close(?). Do anyone know where could I buy a turner pack (those closed shiny ones inside) for digital tv set top box. They seems to be very weak parts, and I was thinking to get them as spares. So far I found only stock sellers.

19th April 2012, 11:39 AM	#2
Mooly diyAudio Moderator Join Date: Sep 2007	Not sure what you mean by "*a turner pack". Tuner ? perhaps is you post a picture of what you are referring too __________________ ------------------------------------------------------- A simulation free zone.* *Design it, build it, test it.*

20th April 2012, 11:09 AM	#5
Mooly diyAudio Moderator Join Date: Sep 2007	The tuner for a STB is just as likely to be all SMD (surface mount) on the main PCB even though it does have screening cans around and over it. Make and model maybe __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

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20th April 2012, 09:26 AM	#3
lassipr diyAudio Member Join Date: Oct 2009	RF part in closed tin box, in every RF reciever on transistor age. Part where antenna usually is connected.

20th April 2012, 11:01 AM	#4
DF96 diyAudio Member Join Date: May 2007	That is the VHF/UHF tuner. Unless you get lots of electrical storms unlikely to be unreliable. The tuner may be a generic off-the-shelf item, or sometimes specially designed for the particular unit. The PSU (and other electrolytic caps) is usually the STB weak point.

21st April 2012, 11:45 AM	#6
marce diyAudio Member Join Date: Jun 2007 Location: Blackburn, Lancs	And messing about with rf designs is not always reccomended, very touchy.

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