hi, as far as i know the only difference between the 2 diodes is the voltage, 400v and 1000v @ 1 amp
mark k ----- Original Message ----- From: "Terry Rudd" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, October 14, 2002 7:03 PM Subject: RE: wiring confirmation > Andrew, > > I've been told you can also use an IN4007 but I've always used the IN4004 > with results as expected so far. I've wired a hypo amp this way and an > earthquake in another 1600 and it's still running great (buggers a 1600 boot > seals badly if you run it closed with that baby and doesn't do the battery > much good either.) You only need to use the diode in the 12v feed from the > relay from Pin 87 or 12v power source past the pickup point if you opt not > to wire in a relay. > > It is important when you use a diode to power a head unit, amp etc to never > ever wire in another accessory past the diode, i.e. one wire with diode for > one accessory, more than one accessory then use a separate feed and another > diode on the output from Pin 87. Things can and often will go bang if you > don't follow this rule as one unit can back feed off the other - draw a > diagram to illustrate the circuits if you don't understand why this happens. > Also, there is no point wiring the diode on the feed to Pin 30 as it allows > back feed up the sense wire (Pin 86) if the relay ever chatters (usually > happens when you kill the sense source like when you turn the Ign to Off) > and this can power whatever the sense wire source is - i.e. Acc Heater etc > and that's what you are protecting your head unit from with the relay & > diode. > > Hope this makes sense for you, you've gotta love the behaviour of the > electrons in the 1600 method of wiring. > > regards > Terry > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Andrew > Greenbury > Sent: Monday, 14 October 2002 12:17 PM > To: [EMAIL PROTECTED] > Subject: RE: wiring confirmation > > > Gday Terry, > > Interesting points thanks. So is, for instance, say a 1N4004 diode > suitable, and should it be put inline with the acc feed to the > headunit, or the +12V feed, or both? > > Thanks > Andrew > > > Andrew, > > > > Additionally to what you've said the Accessories feed (heater fan, radio > > etc) is Blue, and there is another Acc circuit for the wipers but this is > a > > much smaller wire and shouldn't be used for a head unit. I've found that > you > > can only draw up to around 100w through the primary Acc circuit with a > > Radio/CD/Cassette etc although the circuit is rated at 20 amps. What I do > > for the CD player/Amp etc is use a direct to battery feed via a mini Bosch > > relay and use the Acc circuit to switch the relay. Another thing to watch > > with wiring in a modern day CD that has a logic circuit in a 1600 is to > fit > > an inline diode to the power feed. A logic circuit controls features like > > allowing power to the unit without the Ign on for a controlled time etc, > but > > with older cars the logic circuit will try and power other things on the > > circuit, like the heater fan in a 1600 and that will destruct the circuit > in > > the unit unless the flow of power is controlled. A few brands actually > have > > a diode in the power feed but I've come across some that don't eg > Phillips. > > The Phillips units have an activation option which shouldn't be used > unless > > the diode is fitted. Some alarm systems are a bit funny with older cars > for > > the same reason. > > > > regards > > Terry > > > > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of Andrew > > Greenbury > > Sent: Tuesday, 8 October 2002 12:05 PM > > To: [EMAIL PROTECTED] > > Subject: wiring confirmation > > > > > > hello all, > > > > the 1600 wiring diagram is a pretty confusing thing - just wanted to > > confirm what wires behind the instrument cluster are recommended for > > splicing into when wiring in say a headunit or alarm; white/red for const > > 12V, and blue/black for 12V with ignition? > > > > Thanks everyone > > Andrew > > > > > > > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
