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Re-check the front panel to see that it’s seated correctly. If it is, snug up the 4 4-40
screws that hold it in place.
Install the Microcontroller
1. Locate the microcontroller IC. It is packed in its own bag in anti-static foam. Do
not remove it from the foam yet.
2. The microcontroller will be labeled with a paper label that says 1p2 (it may be a
later designation, but 1p2 is correct as of this writing).
3. Grab the chassis with your left hand. Pick up the microcontroller IC, still in the
foam, and set it on the floor of the chassis.
4. Turn the chassis so you have a good view of the empty microcontroller socket,
and a good angle to install the microcontroller.
5. Touch the chassis again and leave your body in contact with the chassis as you
remove the microcontroller from the foam and begin installation in the next step.
6. Install the microcontroller into the socket U4. It’s a 20 pin 0.3” wide DIP, marked
M430G2452 (bottom row of text). Be careful to get pin 1 at the correct end of the
socket by matching the indents in the part, silk screen, and socket (see Figure 24).
It may help to bend the leads to match the width of the socket. This makes it
easier to fit the microcontroller smoothly into the socket.
Test the Controller PCB
Here is the controller test procedure:
1. Connect the IEC power cord to the PR101 and the AC mains (wall socket).
2. Switch on the AC power.
3. Measure the DC voltage on TB9. It should be 5V plus or minus 0.25 V.
4. Push the up/down buttons on the controller board, the accompanying LED’s
should light.
5. Push the F1-F4 and TC buttons. The first push should turn the accompanying
LED on, the second will turn it off.
6. Push the AMP A, AMP B, Tape 1 Mon, and Tape 2 Mon buttons. The first push
should turn the accompanying LED on, the second will turn it off.
Test the Remote Control
Install the batteries into remote control battery compartment. Watch the orientation of
the batteries
4
. Aim the remote control at the IR window. Press the input selector keys.
The front panel LED’s corresponding to the input selector keys should illuminate.
Remove the IEC power cable from the AC mains and
Take a Break
You’ve reached a significant milestone. I recommend that you take a break.
4
In earlier versions of the kit, the batteries came pre-installed, with a plastic insulator preventing their
contact with the remote control electronics. If you have one of those kits, then just pull the insulator as the
batteries will already be in place.
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