Well then I’ll have to wait until Monday when my new devices get delivered, for the final verdict.
When I first got my panel, I took the dress cover off and nicked a black component near the SLC. No visible damage and it’s still soldered together. Not sure what it does. I’ve posted the picture of it, the one circled in red.
link: https://drive.google.com/file/d/0B6-Hs46K1Lc9ekJrbVp4aHFETk0/view?usp=sharing
I can’t upload the picture, I get an HTTP error
That component is a TDA2040 amplifier chip. It might be part of the SLC circuit. But I have also seen it used on other Simplex boards for other functions. It is a 5 lead device.
Depending on what happened, there could be a damaged lead. The heat sink can be slid off to get a closer look at the leads to be sure none are damaged. Place your finger on the back (red arrow) and place your thumbs on each side (yellow arrows). Then spread it open with your thumbs while pulling straight out. It should just slide right off. Then check for damage. The heat sink can be pushed back on easily. Check around the TDA2040 for other possible damage.
I have inspected the SLC area. All components and chips seemed firmly in place. No signs of cracks, rust, or corrosion. I pulled off the heat sink and found a white material on it, I assume that’s probably normal but I posted a picture of it below. I also took pictures of a couple things that caught my attention but I don’t think means anything.
The heat sink white material:
https://drive.google.com/file/d/0B6-Hs46K1Lc9VXg1NmdzXy1TQlU/view?usp=sharing
There is a marking above TB4 in black marker, not sure what it says but looks like 16. I took 2 pictures and posted it below.
https://drive.google.com/file/d/0B6-Hs46K1Lc9cEh3RVdKMVVLZE0/view?usp=sharing
https://drive.google.com/file/d/0B6-Hs46K1Lc9LVVEQVJlTjVWcHc/view?usp=sharing
Also there was some writing on the bottom right of the SFIO board with numbers. To the right next of the blue screw.
Those are the only 2 markings.
Not sure why there is markings as the panel when shipped to me, had no knockout holes, came with tons of documentation, a B-key, and several capacitors and resistors. No signs of attempted drilling, nicks, scratches or anything like that.
Be sure to take care that those exposed copper wires on the SLC are not shorted at the terminals. Ideally, they should only be stripped so much that there is no copper showing outside of the terminal block.
The white substance is a silicone grease to give better heat transfer from the amplifier chip to the heat sink. I have no idea what the marker lettering is there for.
I’m aware of that and will fix that shortly. I’ve heard very bad stories with exposed copper and Simplex panels.
I have received several new IDNet devices and I am Relieved to say that it was just a bad ZAM module. I hooked up two 4099-9001 pull stations and it auto detected it just fine and works exactly as intended. I want to thank Retired STR-SG for all his help he provided during this debacle.
