Nad 613 Service Manual
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Extracted text from Nad 613 Service Manual (Ocr-read)
Page 1
SERVICE MANUAL
SERVICE SAFETY PRECAUTIONS (UL)
1. Use exact replacement parts for critical locations marked A
2. Return lead dress to original position and re-install protective covers.
3. Before returning to customer, test for shock hazard; use either method A or B:
A. Leakage test cotd:
1. Unplug the AC cord; tum power switch ON,
2. Connect one lead of High Voltage Insulation Tester to both prongs of the AC plug.
3. Touch other lead to all exposed metal parts.
4. impedance measurement must be O.3-5.Q Megohms.
B. Leakage test, live" : '
1. Plug unit directly into the AC outlet: do not use isolation transformer.
2. Connect one lead of the Leakage Current Tester to earth ground.
3. Touch other lead to all exposed metal parts.
4. Leakage measurement must be less than 0.5 milliamps.
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Page 2
17- I 8
19-20
21-22
2324
2526
27
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 pans for critical locations, marked A on parts list.
Return lead dress to original position, and re-install protective covers.
Before returning to customer, test tor shock hazard; use either method A or B:
A. Leakage test, "cold":
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":
1. Plug unit directly into AC outlet; do not use isolation translormer.
2. Connect one lead ol Leakage Current Tester to earth ground.
3. Touch other lead to all exposed metal parts.
4. Leakage measurement must be less than 0.5 milliamps.
Page 11
A | B | C D E F G
TAPE MECHANISM-EXPLODED VIEW
TAPE MECHANISM-PARTS LIST
REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION
2-2 24601245 Motor reel Z2 24603149Y Lever(EJ)
3 24611617 Head pIate Z4 24603418Y Lever(SB)
3-9 24600126 RIP head Z5 2461 1612Y Retainer L
3-10 24600032 Erase head Z6 24605803Y Spring
4 24601253A Main motor Z8 890301 S Ring(E)
5 24606535 PCB control Z9 833126047Y 2.6'1TP+4S, Screw
18 24602542 Main belt 21 1 24609074Y Screw
31 24602541 Pinch roller
~17- _13_