mhawley

Looking for some help. Working on an N4 unit, and when I pulled it out of the dash, there was a blue/white wire that had pulled out of one of the connectors in the back. I think it came out of the connector with the RCA outputs. From looking at the manual it looks like it might be to the system control terminal of power amp. Does anyone have the plug/pin out locations of the wires from the audio/RCA plug I got one from the service manual, but was unsure of what all the abbreviations were.

 

A picture of the wires coming out of the plug would be helpful also.

 

Thanks

Looking at getting a z110bt or 120bt installed in my truck. Is there a way to connect the rear seat audio controls to the unit so that they will function? The shop I talked to didn't think there was. Ive got a 2007 1500 LTZ CrewCab with the Bose System. The stock radio is the AM/FM/xm satelite system.

 

Thanks

I connected the VSS wire to pin 15 or the DRAC. The pins are not well documented in the HUMMER service manual, but with some help of the Hummer network, I was told that there are several outputs that could be used. So far, this seems to be working well and the 3d mode is also working. I think one could also hook in to pin 14 as well.

I was able to get the z1 to start acceptably with the PTR7. I set it up so that when the starter kicks in and the voltage drops, the PTR7 will trigger the z1 to start up. When the ignition is turned off, the z1 turns off. I was able to run a power lead from another circuit that is hot all the time. If i want to start it using the accessory switch, i have to turn the key to accessory twice to trigger the z1.

 

I tried to set it up so the z1 would turn on when the key was turned on and when the the drop in voltage occured, the PTR7 would use a continuous hot circuit to power the z1, but the hot circuit still dropped to about 10 volts, and caused the z1 to reboot.

I had one other thought, could a PTR7 be programed to power the ignition input, and use the drop out in voltage as a pulse trigger?

I have my console out so I can work on the z1. I did a measurement on the amps on the red ignition circuit, and got 2.8 milliAMPS. Does this sound reasonable? I am in the learning curve on a lot of this stuff. Anyway, I placed the ampmeter between a break in the red circuit, with the leg from the fuse panel connnected to the red side of the ampmeter and the leg going to the z1 connected to the common {black} side of the ampmeter.

 

Thanks for all the input.

 

I also tried a timer relay set to interval, with the red ignition circuit used to trigger the relay. I had a full time circuit on one leg and the ignition circuit on the other leg. I set it up so when the ignition powered up the power to the z1 came from the full time circuit for 50 secs. But when the starter cranked power was lost to the switching circuit, and the relay connected back to the ignition circuit which was momentarily without power and the z1 rebooted. As soon as the power was restored the relay came back on and the timer started back.

I posted this question several weeks ago, I have found out some new information and wanted to see if anyone had any new ideas.

My Z1 is in a diesel truck. I have to turn the key on to start the glowplugs and cylcle the fuel pump. While this is going on, the z1 boots up. The process lasts about 30 secs, and then I turn the key to start the engine when there is a voltage drop to run the starter. The voltage in the power line(Ignition Accessory) to the z1 drop to less than 1 volt. This causes the z1 to reboot. The voltage drop is only for about 1 sec. There is another power line to the z1, this one come directly from the battery and is hot all the time, it powers the memory. It only drops to about 10 Volts during engine startup. I have been researching this and it seems to be a big problem with the Car PC people who do not like to have there Car PC's reboot on car startup.

 

I have seen several possible Solutions:

 

1. Simplist: Install a simple switch between the ignition power line and the z1, then wait till the engine is running and turn the z1 on manually.

 

2. Tank circuit. I was wondering if anyone had any experience with this. apparently it is a circuit that senses the voltage in a primary line and when it drops below a certain voltage switches to an alternaltive battery to keep the voltage at a set level, and then switches back to the primary circuit when the voltage returns to normal. I was thinking of using the battery circuit that provides memory power to the z1 instead of a seperate battery for the 1 to 2 secs that it needs the alternate power.

 

3. Capacitor. Could this be configured to provide power for the 1-2 sec. that the voltage drops to less that 10volts. One of my concerns is what happens to the power in the capacitor when the ignition is switched off, does the the Z1 continue to run till the capacitor looses its power or could it be set up to where the unit shuts off when the ignitions is shut off?

 

4.Diode. I'm not real sure on all the operation of it, I seems like it does something to prevent spikes. I believe it stores spiked energy and then disipates it at a later time, sort of the reverse of what needs to happen in this case, but could this some how be configured to keep the voltage on the side of the z1 from dropping below 10 volts?

 

There seems to be a lot to technical and electrical expertise on this board, so I was hoping some of the knowledgeable folks could help.

Does anyone know where to connect the speed sensor on an 2000 H1 Hummer . It seems to be to one of the connections on the Digital Ratio Adapter. These are the connections documented in the Service Manual. One person I spoke to said one of the unused pins might have a signal that would work.

 

Pin 1 not used

Pin 2 not used

pin 3 not used

Pin 4 Cruise Control Reference Signal 4000PPM

Pin 5 Blank

Pin 6 Blank

Pin 7 Vehicle speed Sensor RETURN

Pin 8 Ground

Pin 9 12 Volt ignition Signal

Pin 10 Seedo Reference Signal

Pin 11 Not used

Pin 12 Vehicle speed

Pin 13 Output Shaft Revolution Signal

Pin 14 Not Used

Pin 15 Not used.

 

I was wondering if I need to connect to one of the wires or if one of the unused pins would have a signal that I could connect to.

I have a small CCD camera I would like to use for my backup camera. It produces a normal image and not a mirror image on the Z1 in back up mode. I was wondering if there is a way to make the Z1 reverse the image?

Thanks

I was just concerened whether booting and then rebooting the unit within 30 to 40 seconds EVERYTIME the car starts would damage the unit over the long run.

I have a diesel that has to warm up glowplugs before starting engine. When I first turn the key switch on, I have to wait 10 to 20 Sec for the glowplugs to warm up prior to starting the engine. The z1 will start to boot up when I first turn on the switch, and then when I crank the engine, the z1 will shut off and then reboot. Is there a way to delay the startup of the z1 till after I acutally crank up the engine. I have the unit mounted in an H1 HUMMER with a 6.5 Turbo Diesel. The z1 is hooked up to the stock radio harness.

Thanks