Nakamichi Receiver3 rec sm

Page 2

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CONTENTS

1. General . . . .

09/08/2012

www.nostatech.n|

2 RemovalProcedures ...... ................ .. ................ :3
2. 1. TopCover.... . .. . 3

2. 2. Bottom Cover . . ............................................. 3

2. 3. Front Panel Assy . . . . ........ . ..... 3

2. 4. Display 8: Control P.C.B. Assy . . . . . . 3

3. Parts Location for Electrical Adjustment ........ 4
4. Electrical Adjustments . . 4
4. 1. Power Ampli ier Section 4

4. 2. Tuner Section . 5

6. Mechanism Ass'y and Parts List . . . . 8
5. 1. Synthesis ............ 8

5. 2. Chassis Assy (A01) ......... . . . . . . . . . . . . 9

5. 3. Heat Sink Assy.(BOl) ................... . . .................. . ............ 10

5. 4. Front Chassis Assy (802) 10

6. Mounting Diagrams and Parts List . . . . . . 11
6. 1. AC Outlet P.C.B. Assy ......... . ........... 11

6. 2. Power Switch P.C.B. Assy ................. . . . 11

6. 3. Speaker Switch P.C.B. Assy . . . 11

6. 4. Volume Indicator P.C.B. Assy 12

6. 5. System Remote P.C.B. Assy . . . 12

6. 6. Volume P.C.B. Ass'y ........ 12

6. 7. Display 8: Control P.C.B. ASSy . 12

6. 8. Main P.C.B. Ass'y .......... 13

7. Schematic Diagrams .......... . . ..... 15
7. 1. IC Block Diagrams .......... . . . . . . . . . . 15

7. 2. Schematic Diagrams ............. . . .............. . .............. . ........ 17

(1) Tuner Section ...... . . . 17

(2) Amplifier Section . . . 18

8. Wiring Diagram . . . . . . ........................ 19
9. Block Diagrams . . .............. . . . . 20
9. 1. Tuner 8: Display Control Section ........ 20

9. 2. Amplifier Section .......... . 21

10. Specifications ........... . ............. 22

1. GENERAL
1.1. Production No.
Production No.: D112

1.2. Destinations
USA, CAN, EP, UK, AUS, OTR, JPN

Abbreviation
USA - U.S.A. AUS - Australia
CAN - Canada OTR - Other
EP -- Europe JPN - Japan

UK - United Kingdom

1.3. Parts Supply

(1) Unstocked Parts
Parts marked with 1* at the head of part No. are not
stocked. So, it takes time to supply the parts after we
receive your order.

(2) Unsupplied Parts
Parts without part Nos. (indicated as ~-" in the parts
list) are not supplied.

1.4. CAUTIONSIWARNINGS
(1) Product Safety Notice

Parts marked with the symbol A in the schematic
diagram have critical characteristics.

Use ONLY replacement parts recommended by the
manufacturer.

It is recommended that the unit be operated from a
suitable DC supply or batteries during initial check-out
procedures.

(2) Leakage Current Check/Resistance Check .
Before returning the unit to the customer, make sure you

make either (1) a leakage current check or (2) a line to

chassis resistance check. If the leakage current exceeds 0.5
milliamp, or if the resistance from chassis to either side of

the power cord is less than 240 k ohms, the unit is
defective.

WARNING - DO NOT return the unit to the customer

until the problem is located and corrected.

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