Table Of Contents - NAD T 785 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
F8001*AH
F8001*C,CT
F8002*AH
F8002*C,CT
NOTE:
<*AH >
<*C, *CT >
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
CONTENTS
DESCRIPTION
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................................................12-15
ADJUSTMENT POINTS DIAGRAM / AMPLIFIER ADJUSTMENT ..................................................16-17
PCB LAYOUT ...................................................................................................................................18-41
SCHEMATIC DIAGRAM ...................................................................................................................42-69
ELECTRICAL PARTS LIST ..............................................................................................................70-95
IC BLOCK DIAGRAM .....................................................................................................................96-120
EXPLODED VIEW ........................................................................................................................121-122
EXPLODED VIEW PARTS LIST ..................................................................................................123-126
SINGLE CHANNEL SERVICE KIT ..............................................................................................127-128
PACKING DIAGRAM ...........................................................................................................................129
Database Part Number
20-001-0078-90
20-001-0078-90
20-001-0076-90
20-001-0069-90
: USA, CANADIAN MODEL ONLY.
: EUROPEAN MODEL ONLY.
are critical with regard to the risk of fire and electric shock.
Description
FUSE TIME-LAG 10A/250VAC 5X20mm
UL/CSA 5T
FUSE TIME-LAG 10A/250VAC 5X20mm
UL/CSA 5T
FUSE 1.6A 250V TIME LAG LBC
5x20mm TSD UL/CSA/VDE/SEMKO
FUSE TIME-LAG 800mA 250V 5x20mm
TSD UL/CSA/VDE/CCC WALTER
5X20mm VDE/UL/CSA 5T
3
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