Building cabinet, electrical question :|

[CoOlSlY]

I have a 46" I will put in the cabinet, it's a "Samsung based" LCD... I know I know the debate about LCD screen, 16:9, 4:3 etc screen (I have two other build with 27" Arcade monitor and another 32" "regular" TV).

I want my TV to be turned on automatically with a temporised relay but I need some help with understanding the schematic... I want to know: Which pin should I put my temporised delay on to "short" the two wires so it becomes normally closed and light up the TV...

Anybody?

Here's the link to the electrical schematic of the LCD: http://www.toms-service-manuals.com/getfile.php?req=Panel_SAMSUNG_LTA460HS-L03_0_%5BDS%5D.pdf&mfg=Panels

[chrisnack]

A standard bosch relay is just a switch. So you essentially have power in and power out, and then use a positive or ground trigger to activate it depending in the behavior you want. The trigger can be any voltage you want. 

Possible simpler solution, if the TV turns on when plugged in (if left on) you can simply use a smart powerstrip.  That's how i power on everything in my arcade cab when the computer turns on.

[CoOlSlY]

A standard bosch relay is just a switch. So you essentially have power in and power out, and then use a positive or ground trigger to activate it depending in the behavior you want. The trigger can be any voltage you want. 

Possible simpler solution, if the TV turns on when plugged in (if left on) you can simply use a smart powerstrip.  That's how i power on everything in my arcade cab when the computer turns on.

Unfortunately, the TV doesn't turn on when plugged... It turns on if I press the button but holding it cause it to cycle ON/OFF/ON/OFF/... so i'm ok with the relay but trying to find out via the schematic "which wires do I have to "short" to power it on"... There's a connector who goes to the power button but it's a 50 pins connector so being able to know it's wire #16 for example would help me out a lot...!

[chrisnack]

Gotcha, ok that sucks then.  Sorry i didn't pull up the schematic you had linked and read through it all. 

Not surprised as i don't think most newer tv's power back on as i assume they wouldn't meet some energy star rating then most likely. 

[JDFan]

I have a 46" I will put in the cabinet, it's a "Samsung based" LCD... I know I know the debate about LCD screen, 16:9, 4:3 etc screen (I have two other build with 27" Arcade monitor and another 32" "regular" TV).

I want my TV to be turned on automatically with a temporised relay but I need some help with understanding the schematic... I want to know: Which pin should I put my temporised delay on to "short" the two wires so it becomes normally closed and light up the TV...

Anybody?

Here's the link to the electrical schematic of the LCD: http://www.toms-service-manuals.com/getfile.php?req=Panel_SAMSUNG_LTA460HS-L03_0_%5BDS%5D.pdf&mfg=Panels

What make and model of TV is it actually ?? -- reason for asking is there may be a setting for it to turn on when power is supplied

ie. for a Toshiba COLORSTREAM 46XV640U which uses this panel the menu setting is Last Mode Memory feature:

Understanding the last mode
memory feature
If the power is cut off while you are viewing the TV, the
Last Mode Memory feature automatically turns on the
TV when the power is resupplied

Gotcha, ok that sucks then.  Sorry i didn't pull up the schematic you had linked and read through it all. 

Not surprised as i don't think most newer tv's power back on as i assume they wouldn't meet some energy star rating then most likely.

Most have the option but it is sometimes hard to find the setting and it is usually off by default ( some call it hotel mode or like toshiba last mode etc. and it is sometimes hidden in advanced settings where you need to push certain buttons while powering up etc.)

[danny_galaga]

A standard bosch relay is just a switch. So you essentially have power in and power out, and then use a positive or ground trigger to activate it depending in the behavior you want. The trigger can be any voltage you want. 

Possible simpler solution, if the TV turns on when plugged in (if left on) you can simply use a smart powerstrip.  That's how i power on everything in my arcade cab when the computer turns on.

The switching voltage can only be in the range specified on the relay. If it's a 12V relay for instance, 5V will probably be too low to pull in. The contact side is more forgiving, so long as the current going through it isn't so high it gets hot