NAD 613 - Page 2

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CONTENTS
REAR/FRONT PANEL
SPECIFICATION
WIRING DIAGRAM
BLOCK DIAGRAM
ADJUSTMENT PROCEDURE
ADJUSTMENT POINT
MICROPROCESSOR CONNECTION DIAGRAM
MICROPROCESSOR TERMINAL DESCRIPTION
CHASSIS-EXPLODED VIEW
CHASSIS-EXPLODED VIEW PARTS LIST
IC BLOCK DIAGRAM
FLUORESCENT INDICATOR TUBE
IC BLOCK DIAGRAM / PACKING VIEW
TAPE MECHANISM-EXPLODED VIEW
PRINTED CIRCUIT BOARD-PARTS LIST
PRINTED CIRCUIT BOARD
SCHEMATIC DIAGRAM
SCHEMATIC DIAGRAM
PRINTED CIRCUIT BOARD
SERVICE SAFETY PRECAUTIONS
Use exact replacement parts for critical locations, marked /\" on parts list.
Return lead dress to original position, and re-install protective covers.
Before returning to customer, test for shock hazard; use either method A or B:
A. Leakage test, "coid”:
1. Unplug AC cord, turn power switch ON.
2.
Connect
one
lead
of
High
Voltage
Insulation
Tester
to
both
prongs
of
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”:
a Plug unit directly into AC outlet; do not use isolation transformer.
2. Connect one lead of Leakage Current Tester to earth ground.
3. Touch other lead to ail exposed metal parts.
4. Leakage measurement must be less than 0.5 milliamps.