Ca2100 Dc Protection Test - Classe Audio Delta Series Service Manual

For a CAP2100
Turn the CAP2100 on. Connect the IR out from the IR/Trigger box to the IR in from the unit. Connect a 1/8
cable to your IR out of the unit. Turn on the Trigger/IR box. Put you multimeter to the other end of the of the
1/8 cable, you should see about 5Vdc (relative to the output ground or the ground of the 1/8 cable). Take
the CAP2100 remote control and press the MUTE button. You should see a drop of about 0.4-0.5Vdc
(4.60Vdc) on your meter and hear the mute relay. Repeat 2-3 times.
Teach IR procedure with the wrap on. (CAP2100 only)
The CAP2100, can be use with a universal remote control. This means that you can program a universal
remote with the CAP 2100 function. This test can be done only when the wrap is on after the starup. Just
follow the next step:
1- On the Universal remote, press AMP and RECORD button and keep it pressed until
the LEARN led turn green. This will turn the remote in learning mode.
2- Press one key (anyone) that you want to program. By pressing a key, the learning led will turn
orange. That means that the remote is ready to receive code.
3- On the CAP2100, press MENU TEACH IR, then choose the function you want to assigned to the
key of the remote. Example: DISPLAY.
4- Target the IR eye (from remote control) on the IR eye of the CAP2100. Then press the TEACH IR
button on the screen. You should see the orange led flashes 1 second and turn green. If the orange led
turns to RED or stay orange go back to step 2.
5- After it turns green, press again the AMP button to close de learning mode and try the key you
programmed.

CA2100 DC protection test

Once the heatsink assembly is connected, you should NOT apply any external voltage (or ground) directly to
the output posts of the amplifier. To test the DC protection circuitry you should apply a DC voltage (or offset)
to the input of the amplifier.
Adjust your function generator to get a +160mVdc offset (turn-off the AC signal or switch it to 2kHz at
minimum level). Switch the amp to single-ended input and power it up. Plug-in the signal from the function
generator to each input (one at a time). The unit should enter protection mode, and the corresponding LED
should flash red. The CAP2100 will automatically shut-down and should not restart until the AC has been
unplugged (or the RFF command has been sent via DCI).
Repeat this test with a –160mVdc offset.
Repeat with a +140mVdc offset and again with a –140mVdc offset and make sure the unit does NOT go into
protection.
CA(P)2100 AMP Service Manual v1.4 inc voltage change info .doc Page 31 of 50