About the Basic Kit
1- The basic kit contains a small hardware baggie with the following:
- 4 x SEMS screws. These are for mounting the PCB to the bracket.
- A U shaped heatsink for the voltage regulator U1
- Hardware to mount the heatsink to U1. The insulator is optional but don't forget the thermal paste!
2- The PCB sockets for the Hi-Z Plugins must be press fitted in their holes. Use the rubbery handle on a pair of pliers to push them all the way against the PCB if needed.
3- Use single core wire and some heatshrink tubing to mount the LEDs from the PCB to the panel. 22 gauge wire will do.
4- Watch the orientation on the relays! They are marked at the top.
5- Even though it's not critical, try to line up the Neutrik input jacks as best as possible. They are meant to hang over the PCB a tinny bit by about 0.5mm.
6- Try to get the switches to be as parallel as possible to the PCB. There are 2 plastic tabs at the bottom of each switch that are meant to sit on/touch the PCB. You'll know that you have the switches installed right if both of them are touching the PCB.
7- Installing the switch caps will require some force but be gentle... ok? Use a drop of soapy water if required.
8- Check your supply voltages for each IC at the IC sockets BEFORE inserting the ICs. You should read 5V at pin 14 of U7, pin 14 of U8 and pin 16 of U6. This may require a special test rig which I suggest you put together if you're planning on building more 500/51X series projects in the future. Otherwise, if you like the thrill of potentially f'ing things up, install all ICs and slide your shiny new HZ51X in a 500/51X rack, do the smoke test and hope for the best...
9- For 500 series use only: Cut off the extra 51X tab. You may omit C12, C13 and D13.
About the Hi-Z Plugin Kits
1- Regarding the passive Jensen/Cinemag Plugin: Try to mount the TX as close as possible to the plugin PCB. Every 1/2mm of height counts.
2- The 6.8K resistor is not required if using the Cinemag TX. Install it only if you're using the Jensen TX.
3- Check your voltages at the sockets before inserting the active Plugins. Same deal as point number 8 in the previous section above.
That's all I can think of right now but I will come back to this post and add some photos and more tips if I think of any more or someone else brings them up.