NAD 214 User Manual

SERVICE MANUAL
©
=
WN
=
+
=
Nl
am
LL
a
af
oz
cc
—_
Y
SERVICE SAFETY PRECAUTIONS (UL)
1. Use exact replacement parts for critical locations marked ANG
2. Return lead dress to original position and re-install protective covers.
3. Before returning to customer, test for shock hazard; use either mothod A or B:
A. Leakage test “cold”:
1. Unpiug the AC cord; turn power switch ON.
2. Connect one lead of High Voltage Insulation Tester to both prongs of the AC plug.
3. Touch other lead to all exposed metal parts. :
4. Impedance measurement must be 0.3-5.0 Megohms.
B. Leakage test, “live” :
1. Plug unit directly into the AC outlet: do not use isolation transformer.
2. Connect one lead of the Leakage Current Tester to earth ground.
3. Touch other jead to all exposed metal parts.
4, Leakage measurement must be less than 0.5 milliamps.
214/216 ©
STEREO POWER
AMPLIFIER

NAD 214 Specifications

General

Total Harmonic Distortion	0.03%
Damping Factor	100
Gain	29 dB
Frequency Response	20Hz to 20kHz
Power Output	80 watts per channel into 8Ω (stereo)

Summary

Service Safety Precautions

Leakage Test "Cold"

Procedure for performing a cold leakage test to check for electrical hazards.

Leakage Test "Live"

Procedure for performing a live leakage test to check for electrical hazards.

Specifications

Front and Rear Panel Overview

Front Panel Controls and Indicators

Identifies the power switch, power indicator, soft clipping, and bridge mode indicators.

Rear Panel Connections

Details the bridge mode switch, input jacks, soft clipping switch, speaker terminals, and AC power cord.

PCB Layout Diagrams

Exploded View Parts List

Exploded View Assembly

Wiring Diagram

Schematic Diagrams

Schematic Diagram (Model 214)

Detailed schematic for the 214 Power Amplifier.

Schematic Diagram (Model 216)

Detailed schematic for the 216 Power Amplifier.

Electrical Parts List

Alignment Procedure

Packing Diagram