SOLVED !! internals of the auto lamp module Reply #75 – January 13, 2013, 02:31:47 PM OK. Next, we will find which transistor is shot.First, desold the R6 pin connected to the Q1C. Solder some LED and resistor (at least 470 ohm) together. connect the LED and resistor between Q1C and ACC or BAT. This will show us, if Q1 is working. Test it for dark and bright conditions.Second, connect the wire to the free pin of R6 and conect it to ACC an then to the ground. See what happens and let me know. Quote Selected
SOLVED !! internals of the auto lamp module Reply #76 – January 13, 2013, 02:33:21 PM ok, will report back,, i think i see where you are going.give me 30minutes Quote Selected
SOLVED !! internals of the auto lamp module Reply #77 – January 13, 2013, 02:34:48 PM resistor and diode in parallel or series and diode pointed which way?are you trying to "make" the blown side of the transistor? Quote Selected
SOLVED !! internals of the auto lamp module Reply #78 – January 13, 2013, 02:42:47 PM and,, is this safe?have you tried this before? if not , its the reason i am here today Quote Selected
SOLVED !! internals of the auto lamp module Reply #79 – January 13, 2013, 02:53:45 PM Yes, it's safe.Here is the quick sketch, how to do it. The first task shows us, if Q1 is good and the second one proves the Q2. If it will be OK, it will turn on the headlamps when you connect R6 to ground. Quote Selected
SOLVED !! internals of the auto lamp module Reply #80 – January 13, 2013, 03:42:40 PM Is your diode backwards for the first step Quote Selected
SOLVED !! internals of the auto lamp module Reply #81 – January 13, 2013, 04:03:00 PM LED in step one is just in this direction. Anode to the ACC and cathode to the transistor (with a resistor of course). It should glow in the dark.Use appropriate resistor for the LED. Minimum value is about 470R and maximum up to 10k or so. I recommend you 1k, if you have it. Quote Selected
SOLVED !! internals of the auto lamp module Reply #82 – January 13, 2013, 04:12:01 PM I installed everything as you drew and explain.Step one did not turn on the autolamp by adding power to the anode side of the diodeI use the variable potentiometer and dialed in 500 OhmsStep2 consisted of bonding the free leg of r6 to battery and to ground. in neither condition did the lamps come on. Quote Selected
SOLVED !! internals of the auto lamp module Reply #83 – January 13, 2013, 04:20:46 PM In the first step only the led should turn on, not the headlamps (because one pin of R6 is disconnected). Try it once again with the new NPN transistor. Quote Selected
SOLVED !! internals of the auto lamp module Reply #84 – January 13, 2013, 04:24:19 PM Here's a picture of the set up as you described in how I installed it Quote Selected
SOLVED !! internals of the auto lamp module Reply #85 – January 13, 2013, 04:26:02 PM Okay will install new Q1 Npn Quote Selected
SOLVED !! internals of the auto lamp module Reply #86 – January 13, 2013, 04:45:51 PM Wait! That's not LED, that's the standard silicon diode! LED looks like this. Longer leg is anode.BTW, your chipset name is CD4001BCN. Quote Selected
SOLVED !! internals of the auto lamp module Reply #87 – January 13, 2013, 05:02:17 PM Tom gave me some of these it's an LED light 12v rated will this work Quote Selected
SOLVED !! internals of the auto lamp module Reply #88 – January 13, 2013, 05:02:56 PM Hey power up in either direction too so I wonder if that is a problem Quote Selected
SOLVED !! internals of the auto lamp module Reply #89 – January 13, 2013, 05:03:33 PM Q1 has been replaced and no changeI installed a 2n2222 and no change Quote Selected
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