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Post by jerhal on Jan 11, 2022 1:43:27 GMT -5
Can anyone tell me how to wire a TCS Z2 decoder into the AZL Rail Diesel Car with the new board? I found this and thought I was good to go for my first attempt at a non-drop in decoder. It seemed straight forward.  But when I got the RDC, they had changed the guts with the wheel pickups wired to the board and the board looks like this. I am functionally illiterate on what the wire do and what the colors represent...  Help!? Can someone give me a new picture/diagram on how to do this? Thanks. |
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Post by HerbertA on Jan 11, 2022 19:57:08 GMT -5
The RDC that you have is a second generation RDC. The trucks have wired cables compared to wipers of the first generation RDCs. You can DCC it with a "drop-in" TCS AZL4 decoder, but you have to solder the cables to the board. Unfortunately, there is no scheme for that. I have a scheme of the decoder on my incomplete website, the motor connections are the big soldering spots on the board. It might be difficult or impossible to connect the rear light. Herbert
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Post by HerbertA on Jan 11, 2022 20:06:59 GMT -5
Corrections: The rear light can of course be connected, either by F1 or F2.
Herbert
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Post by jerhal on Jan 11, 2022 21:52:04 GMT -5
Thanks for the response.
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Post by jerhal on Jan 21, 2022 22:34:34 GMT -5
The RDC that you have is a second generation RDC. The trucks have wired cables compared to wipers of the first generation RDCs. You can DCC it with a "drop-in" TCS AZL4 decoder, but you have to solder the cables to the board. Unfortunately, there is no scheme for that. I have a scheme of the decoder on my incomplete website, the motor connections are the big soldering spots on the board. It might be difficult or impossible to connect the rear light. Herbert
Does this look right replacing PCB with the AZL4? Black wires from respective truck. Red and blue wires from motor.  Since it has a separate PCB at each end for the lights, do I even need to do anything with them? Maybe just remove the LEDs from the AZL4? Thanks |
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Post by BAZman on Jan 22, 2022 15:31:33 GMT -5
Good start, GREAT image to discuss.
In DCC decoder world, Red is Right rail (shown in black, upper left) and Black for Left rail (shown in black, lower left). Orange (think, in the Red family) for motor +, usually also right hand of chassis (top side and shown in blue) and Gray (think, in the Black family) for motor — usually lefthand of chassis (bottom side and shown now as red)
The Forward LED (Function O or Headlight on most Cab/Throttles). This would be White or F0F for ‘Function 0, Forward light. That’s the on-board LED on the left where the there is also two small pads between the power pick up tabs (where you have indicated an LED symbol). You could attach an LED here, making sure that the polarity is the same as the LED on board. The resistor is already on the circuitboard so no modification is required however you should also remove the LED that is on the board and use just the external LED. You will get a better brightness control as there are minor variances in voltage drop and the LED now has the support to current consuming devices so therefore lesser brightness. You can basically just crush the LED with pliers, you really don’t need to unsolder it at all.
As for the F0R Headlight Function 0, Rear or Yellow wire for Rear light you will need to remove the LED to be able to connect a wired LED to the spot where the leak D was. Again you need to know the polarity of the LED that’s mounted and the new LED that you plan to put in.
Note The track and and/or motor contacts can be reversed if for ease of installs. You just need to change the Direction when programming (CV 29). In an NCE PowerCab, after doing the Address section, when prompted to set up Config., 1 for Yes and first question is Direction (of travel)? Enter 1 for Reverse. There is a shortcut to do just this, instead of all the Addressing: When prompted to Setup Address? press 1 or, when you shortcut on Main screen: Esc 4 (Program Track) Enter, now choose 3 to jump direct to Config prompt. SEE pg 48 of the manual.
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Post by jerhal on Jan 25, 2022 16:54:26 GMT -5
The updated RDC has separate front and rear PCB boards for the lights. I do not see a connection from the main PCB board to these light PCB boards. So if I replace the main PCB board with the AZL4, will the front and rear light PCB boards still operate correctly? Can I then just remove the LEDs from the AZL4?
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Post by HerbertA on Feb 6, 2022 18:00:57 GMT -5
The two metal stripes from the LED PCBs go to the underside of the mainboard touching two pads. These pads don't exist on the AZL4 decoder. Therefore, you have to make the connections from the metal stripes to the decoder as Jeff described it.
Herbert
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Post by BAZman on Feb 7, 2022 13:46:44 GMT -5
Using a TCS Z2 (part number 1296) wired decoder makes these installations MUCH easier.
🤓
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Post by scanrail on Feb 7, 2022 15:30:08 GMT -5
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Post by jerhal on Feb 15, 2022 0:34:49 GMT -5
Using a TCS Z2 (part number 1296) wired decoder makes these installations MUCH easier. 🤓 Thanks! |
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