Table Of Contents - NAD T 773 Service Manual

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
F751*AH
F751*C
F752*AH
F752*C
NOTE:
<*AH > : USA, CANADIAN MODEL ONLY.
<*C > : EUROPEAN MODEL ONLY.
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.
Parts marked with the symbol
Replace only with parts recommended by the manufacturer.
CONTENTS
DESCRIPTION
SPECIFICATIONS ............................................................................................................................ 4 - 5
REAR PANEL / FRONT PANEL VIEW .................................................................................................. 6
DISASSEMBLY INSTRUCTIONS .......................................................................................................... 7
WIRING DIAGRAM ................................................................................................................................ 8
BLOCK DIAGRAM ................................................................................................................................. 9
SPECIAL FUNCTION .......................................................................................................................... 10
DETAILS & WAVEFORMS ON SYSTEM & TEST & DEBUGGING .................................................... 10
ADJUSTMENT POINTS DIAGRAM / AMPLIFIER ADJUSTMENT ....................................................... 11
PCB LAYOUT ............................................................................................................................... 12 - 25
SCHEMATIC DIAGRAM ............................................................................................................... 26 - 45
IC BLOCK DIAGRAM ................................................................................................................... 46 - 54
EXPLODED VIEW ........................................................................................................................ 55 - 57
EXPLODED VIEW PARTS LIST................................................................................................... 58 - 59
ELECTRICAL PARTS LIST .......................................................................................................... 60 - 73
PACKING DIAGRAM .......................................................................................................................... 74
VERSION HISTORY .......................................................................................................................... 75
Part Number
33-0321111-00-88
33-0161006-00-88
33-0111006-00-88
33-0151006-00-88
are critical with regard to the risk of fire and electric shock.
3
Description
FUSE 20A/250VAC SLOW BLOW 6X32mm
6S UL/CSA
FUSE 10A/250VAC TIME-LAG 5X20mm
5D VDE/UL/CSA
FUSE 1.6A 250V TIME LAG 5x20mm 5T
UL/CSA/VDE/SEMKO
FUSE 800mA 250V TIME LAG 5x20mm
5T UL/CSA/VDE/SEMKO
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