Updates - Classe Audio CA-100-101 Service Manual

Updates

1. On board B051X, replace R132 and R232 with Classe part number A211-1004.
2. On chassis, install PCB filter (noise elimination module) B01GX, using the following instructions.
Noise elimination module:
EXTRA PRECAUTIONS SHOULD BE TAKEN WHEN REPAIRING, MODIFYING, OR
TROUBLESHOOTING IN THE POWER SUPPLY AREA. UNIT MUST BE DISCONNECT
FROM MAIN SOURCE AND CAPACITORS MUST BE DISCHARGED USING A 100W
INCANDESCENT BULB.
1. Remove top cover, handles and faceplate (for more information about mechanical disassembly and
reassembly, report to section 2, mechanical assembly)
2. Turn the unit upside down, front of the unit facing you
3. Using a pencil, make a mark at 3½" from the back of the unit, 5½" from the ride side. Use a punch to
guide the drill bit.
4. Using a 1/8" drill bit, drill a hole at this intersection.Clean the area for any metal residue.
5. Remove two black screws holding the voltage selector PCB
6. Disconnect the wire from N (neutral). The wire should be yellow or clear. Take time to identify each
wire in order to reconnect them properly.
7. Disconnect wire from L (live). The wire should be blue or black. Identify this wire.
8. Gently strip off the black shrink tubing covering both wires.
9. Cut N wire about 4 inches (10.2cm) from the edge of the lower portion of the supply PCB
10. Connect N wire to one end of the noise filter board, Classe part number B01GXR01. (Fig. 1)
11. Using the wire supplied with the kit, connect the other end of the noise filter board. (Fig. 1)
12. Fix the board to the chassis, using the screws supplied with the kit.
13. Install the heat shrink tubing supplied on N (new wire) and L wires
14. Reconnect both wires to the voltage selector PCB
15. Clean and spotcheck connections
16. Reassemble and test unit carefully for proper operation.
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