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Q NAD
2
W
mW
O LLI
U
705
RECEIVER
W
r**tft cc
CONTENTS
Page
4 Service Instruction
5 Specifications
6-7 Rear/Front Panel
8 Remote Control Transmitter
9 Tuner Adjustment Points
10 Main Adjustment Points
11-12 Instrumentation Connection Diagram
13-14 Adjustment Procedure
15-16 Main Schematic Diagram
17-18 Main PCB Layout
19-20 Tuner Schematic Diagram
21-22 Tuner & Front PCB Layout
23-24 Front Schematic Diagram
25-26 IC Block Diagram
27-28 Wiring Diagram (A)
29-30 Wiring Diagram (B)
31-32 Exploded View
33-34 Exploded View Parts List
35-47 Electrical Parts List
48 Troubleshooting Guide
49 Packing Diagram
50 Packing List
51 Notes
Service Instructions
TO REMOVE TOP COVER
1 . Remove 4 screws (A) from the left and right sides of the top cover .
(See figure :[)
2 . Remove S screws (B) from the rear panel . (See figure II)
3 . Top cover can now be removed .
SPECIFICATIONS
NAD 705 STEREO RECEIVER
Standard Test Conditions
Reference Output : 1 .OW Into 8 ohm Load
AM Antenna : Firsthand Input
FM Antenna : 75 ohm Balanced
FM Standard Signal : 1 kHz, 75 kHz Deviation At 98 MHz
AM TUNER SECTION
Tuning Range 522 kHz-1611 kHz (520 kHz-1610 kHz)
Intermediate Frequency Sensitivity 450 kHz
20dB Quieting Sensitivity . 5uV
IF Rejection 35dB
S/N Ratio 1 .OmV Input 50dB
T.H.D . 1 .OmV Input 0 .3Z
AM Stop Sensitivity (At 1000 kHz) 50dB
FM TUNER SECTION
Tuning Range 88 MHz-108 MHz
Intermediate Frequency 10 .7 MHz
50dB Quieting Sensitivity . 1 .4mV
IF Rejection 90dB
S/N Ratio 1mV Input 75 kHz DEV. 80dB
MPX Separation (At 1 kHz) 50dB
MPX S/N Ratio 1mV 77dB
FM Stop Sensitivity (At 98 MHz) 30dB
PRE-AMPLIFIER SECTION
Sensitivity At 1 kHz Output=lV 180mV
Frequency Response OdB
Loudness Control (20 Hz) +12dB
Volume=30dB (20 kHz) +4dB
Base 1 Boost (50 Hz) +9 .5dB
Cut (50 Hz) . -9 .5dB
Boost (10 kHz) +7 .OdB
Midrange Cut (10 kHz) . -7 .OdB
POWER AMPLIFIER SECTION
Rated T .H .D . O .O1Z
Channel Separation (At 10 kHz) 70dB
Sensitivity At 1 kHz For 40W Output 1 .05V
Frequency Response 20 Hz +odB/-1 .OdB
50-20 kHz 0