Nad S-170 Service Information

Service Information S170

You may have a complaint about the S170 initialising. This may

be due to the power supply connector pins making poor contact.

To improve contact between the power supply and the pc board perform the following .From the connector marked X27 ,the wires will have to be soldered directly to the pins on the pc board . This is a 6 pin connector with only 5 wires used. Unplug the connector from the board and cut the wires from the connector. Strip and solder each power supply wire to its corresponding pin labelled on the pc board. See diagram 1. Use heat shrink tubing to prevent shorting the wires when soldering to the pins on the pc board . I f the unit is received for general service this procedure should be carried out.

Diagram 1

! THIS AREA OF THE CONNECTOR

POWER SUPPLY DO NOT TOUCH. X27

MAIN

Cut wires here PC BOARD

Strip and solder to pc board connector

+5v adj.

Contact:

Red wire

Green wire

Gray wire

Yellow wire

DGND +5v

-15v

AGND

+15V AGND

NAD Electronics International 633 Granite Court Pickering, ON Canada L1K 3K1 Voice: 905-831-0799 FAX 905-837-6357 www.nadelectronics.com