Door Minder
Page 2
Transmitter Board
Start
Install Jumpers
use some of the scrap pieces of wire you have cut
off the restores.
Make sure you get both of them unlike my hurry up job.
this is a good time to tell you slow down. Take your time.
it will get done faster the first time if you do it right. :)
Install D1, D2 & D3
All three are the same diodes 1N4148.
Again stripe to stripe on the board.
Install Resistors
Refer to Page one for cross reference chart for
resistors values.
Install IC 1 and 2
Be sure the notch in the middle of the socket is facing
the same way
as drawn on the board. This will be inportant when install the chips later.
Install D4
D4 is 1N4004
and install stripe to stripe on board
Install C1,2,3,4 & L1
C1 is 1uF Capacitor. Pay attention to polarity
C2,3,4 are 10nF capacitors and direction dose not mater
L1 is the IR LED. The flat side need to be toward the K on the board.
you may install strait up or to the side to fit your project.
Install X1
X1 is the power connector.
Fits in only one way
Install IC1 & 2
The chips have a dot in the middle on one side be
sure that you put the chips
in with the dot towards the notch in the socket. you may need to bend the
pins in just a little to allow them to slide into the socket.
CAUTION these chip will go bad if hit by
static. Also be sure that you remove
all the aluminum foil that came in the packaging or you may short out the chip.
You are done.
just add power. Caution be sure you only use a
power supply that is rated between 9-12VDC
and that the plug has a positive tip.
