NAD T 163, Service Manual, Page: 3 / 61

3
SERVICE SAFETY PRECAUTIONS
1. Replacing the fuses
CAUTION:
FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF
FUSE.
Reference Designator SCM Part Number Description
F751 370-015100-04(4) 33-0151009-00-88 FUSE 500mA 250VAC TIME-LAG
5X20mm 5T UL/CSA/VDE/SEMKO
F752 370-011100-07(5) 33-0111009-00-88 FUSE 1A 250VAC TIME-LAG
5X20mm 5T UL/CSA/VDE/SEMKO
2. Safety check out
(Only U.S.A. model)
Before returning the product to the customer, make leakage current or resistance measurements to determine
that exposed parts are acceptably insulated from supply circuit.
CONTENTS
DESCRIPTION PAGE
SPECIFICATIONS ............................................................................................................................ 4 - 5
REAR PANEL / FRONT PANEL VIEW .................................................................................................. 6
DISASSEMBLY INSTRUCTIONS .......................................................................................................... 7
WIRING DIAGRAM ........................................................................................................................... 8 - 9
BLOCK DIAGRAM ............................................................................................................................... 10
SPECIAL FUNCTION ........................................................................................................................... 11
DETAILS & WAVEFORMS ON SYSTEM & TEST & DEBUGGING ..................................................... 11
PCB LAYOUT ............................................................................................................................... 12 - 20
SCHEMATIC DIAGRAM ............................................................................................................... 21 - 33
IC BLOCK DIAGRAM ................................................................................................................... 34 - 41
EXPLODED VIEW ............................................................................................................................... 42
EXPLODED VIEW PARTS LIST ................................................................................................... 43 - 44
ELECTRICAL PARTS LIST .......................................................................................................... 45 - 56
PACKING DIAGRAM .......................................................................................................................... 57
Parts marked with the symbol are critical with regard to the risk of fire and electric shock.
Replace only with parts recommended by the manufacturer.