Hi, I'm new to the whole soldering/circuit building. I need to figure out how to solder this diagram. I have all the parts but am just confused as to how. I can't see the underside of the picture.Thanks!
i don't realy know what you mean with the underside of the picture but the schematic is a simple one
first identify all the conections from your relais and diodes and than simply hardwire the circuitry according the shematic
posible errors you can make are change the polarity of a diode and conect wires to the wrong relais contacts if your relais have already the same numbering as in the schematic than it's almost foolproof to make this
do it neat and precise and it will work without problems
Hi Rjvh,
I think he would like to copy the layout as seen on the assembled pcb, but he hasn't got a picture of the track side.?
chadster,
Look at this image, it represents the 0.1inch pitch project pcb.
Print it off, draw the components on the print out as though you looking from the component side of the board. That is, the faint tracks are the copper tracks on the other side of the board.
Do you follow this.?
EDIT:
The internal wiring of the relay may be printed on the case of the relay, you will need internal layout, so that you can connect the relay
correctly. If its not printed on the relay, post the relay type/code number, so that a relay datasheet can be found.
IIRC, without power to the relay coil, 87a is NC (to 30) and 87 is NO. And vice-versa when powered. A quick check with an Ohm meter will verify this as I don't have any of these relays to hand.
IIRC, without power to the relay coil, 87a is NC (to 30) and 87 is NO. And vice-versa when powered. A quick check with an Ohm meter will verify this as I don't have any of these relays to hand.
Thanks for the help in building this board. One more ? Referring to my diagram above in the 1st post, what size fuse should I use to protect the lines IF1-5 IE1-6 ?
Thanks for the help in building this board. One more ? Referring to my diagram above in the 1st post, what size fuse should I use to protect the lines IF1-5 IE1-6 ?
in my opinion you don't have to fuse them,
it's only the coil from the relais that is the load
if you want to fuse it than you can calculate the current that the coil takes
potential in Volts : resistance of the coil in ohm = current in Amp
if the coil is 280 ohm (common valeu) (could not open the data sheet from eric so exactly i don't know)
your car baterry will have a voltage in real life and durring charging from +/- 14V : 280 ohm = 0.05 Amp = 50 mA fuse can be 50 mA slow blow or 1 size bigger and a fast one (it's not that critical in this situation)