Service manual

You can contact the Service Department for links to service videos on this

product.

2. If the amplifier is in the speaker cabinet, remove the eight (8) large head

screws that attach the amplifier to the cabinet. Remove the amplifier from the

cabinet slowly, taking care to unplug both green speaker connectors on the top

side of the amplifier.

3. With the amplifier sitting on a firm surface, remove the four (4) screws from the

amp chassis cover and remove the cover.

4. Disconnect the audio signal cable from the top control board by unlocking the

ribbon cable.

5. Remove the six (6) screws from the top amp heatsink module bracket (3 per

side). Lift up the amp heatsink module in order to remove the brown DC power

harness from the connector on the top amp heatsink module.

Caution: Be careful not to over-flex the circuit board when removing the power

harness connector. The connector fits very snug; rock the connector length-wise

to work loose.

6. Lift the top amp heatsink module out of the chassis and set aside. Do not

remove the control board from the amp heatsink module at this time.

From the “front” (user panel) side of the amplifier:

7. Remove the eight (8) small head screws from the user panel.

8. While slowly removing the user panel, disconnect the audio signal cable from

the input board on the user panel by disengaging the locking connector.

Also disconnect the AC input connector (4 wire green connector) from the AC

mains board.

9. Remove the sense cable (gray ribbon cable) and the transformer primary

connector (7 wire green connector) from the AC mains board.

10. While firmly holding the AC mains board, remove the three (3) screws on the

top of the chassis and remove the board.

11. Disconnect the white DC power harness from the power supply module.

Caution: Be careful not to over-flex the circuit board when removing the power

harness connector. The connector fits very snug; rock the connector length-wise

to work loose.

12. Lay the unit on either side and remove the six (6) screws from the bottom of

the amp chassis.