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-   -   ? about mA (https://www.diybanter.com/electronics/36115-about-ma.html)

Oz Scott July 27th 03 07:53 PM

? about mA
 
I was given a LCD screen from a car vcr system. The display needs 12 Volts
AC, but makes no mention of the mA requirements. I have a sony 12 Volt AC
adaptor that as 300 mA. Will it be damaged if the LCD requires more? Also if
I purchase an adaptor with to high of a mA value can that damage it?

I have searched online trying to find info about this particular LCD screen
but cant find any detailed info with regards to power requirements, so I
figured Id look for help here.

Thanks



scada July 28th 03 10:53 PM

? about mA
 

"Oz Scott" wrote in message
...
I was given a LCD screen from a car vcr system. The display needs 12 Volts
AC, but makes no mention of the mA requirements. I have a sony 12 Volt AC
adaptor that as 300 mA. Will it be damaged if the LCD requires more? Also

if
I purchase an adaptor with to high of a mA value can that damage it?

I have searched online trying to find info about this particular LCD

screen
but cant find any detailed info with regards to power requirements, so I
figured Id look for help here.

Thanks



Are you sure it requires 12 VAC ? Cars are DC battery! The current (ma)
should be at least 20% or than the label on the LCD. If you use the AC
adapter, and it should be DC, you will destroy the LCD! Also if DC is
required, the polarity of the connections must be right! Post back with more
info, maybe we can help.





Oz Scott July 30th 03 04:57 AM

? about mA
 
I dont have anything other than the screen itself, so I am not sure. But on
the power input it says DC 12V.

So does that mean I need a converter to use this in my house?




"scada" wrote in message
.net...

"Oz Scott" wrote in message
...
I was given a LCD screen from a car vcr system. The display needs 12

Volts
AC, but makes no mention of the mA requirements. I have a sony 12 Volt

AC
adaptor that as 300 mA. Will it be damaged if the LCD requires more?

Also
if
I purchase an adaptor with to high of a mA value can that damage it?

I have searched online trying to find info about this particular LCD

screen
but cant find any detailed info with regards to power requirements, so I
figured Id look for help here.

Thanks



Are you sure it requires 12 VAC ? Cars are DC battery! The current (ma)
should be at least 20% or than the label on the LCD. If you use the AC
adapter, and it should be DC, you will destroy the LCD! Also if DC is
required, the polarity of the connections must be right! Post back with

more
info, maybe we can help.







scada July 30th 03 10:20 PM

? about mA
 

"Oz Scott" wrote in message
...
I dont have anything other than the screen itself, so I am not sure. But

on
the power input it says DC 12V.

So does that mean I need a converter to use this in my house?


You need a Regulated DC power supply capable of producing 12 VDC. If you
were to use a supply of at least 1 amp, that should surfice! OBSERVE the
polarity! The + from the LCD must go to + of the supply, and - to - as
above.




"scada" wrote in message
.net...

"Oz Scott" wrote in message
...
I was given a LCD screen from a car vcr system. The display needs 12

Volts
AC, but makes no mention of the mA requirements. I have a sony 12 Volt

AC
adaptor that as 300 mA. Will it be damaged if the LCD requires more?

Also
if
I purchase an adaptor with to high of a mA value can that damage it?

I have searched online trying to find info about this particular LCD

screen
but cant find any detailed info with regards to power requirements, so

I
figured Id look for help here.

Thanks



Are you sure it requires 12 VAC ? Cars are DC battery! The current (ma)
should be at least 20% or than the label on the LCD. If you use the AC
adapter, and it should be DC, you will destroy the LCD! Also if DC is
required, the polarity of the connections must be right! Post back with

more
info, maybe we can help.










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