Marantz 2252 B Service Manual

Page 2

TABLE OF CONTENTS

SECTION PAGE
1. INTRODUCTION ............................................................... 1
2. SERVICE NOTES ............................................................... 1
3. TEST EQUIPMENT REQUIRED FOR SERVICING ....................................... 2
4. AM ALIGNMENT PROCEDURE .................................................... 2
5. FM ALIGNMENT PROCEDURE .................................................... 3
li. POWER AMPLIFIER ADJUSTMENT ................................................. 3
7. POWER SUPPLY ADJUSTMENT .................................................... 3
8. VOLTAGE CONVERSION FOR EUROPEAN MODEL ..................................... 4
9. FTZ REGULATION FOR EUROPE .................................................. 4
10. MAJOR COMPONENT LOCATIONS ................................................. 5

10.1 Front Panel Adiustment and Component Locations ..................................... 5
10.2 Main Chassis Component Locations (Top View) ....................................... 5
10.3 Rear Panel Adjustment and Component Locations . . . . . . . . . ...... , ....................... 6
10.4 Main Chassis Component Locations (Bottom View) ..................................... (i
11. DIAGRAM AND COMPONENT LOCATIONS ........................................... 7
11.1 FM & AM Tuner Assembly (P200) Schematic Diagram and Component Locations ................. 7
11.2 Main Amp. & Power Supply Assembly (P700) Schematic Diagram and Component Locations ......... 9
11.3 Pushswitch Assembly (P801) Schematic Diagram and Component Locations ..... - ................ 13
11.4 Tone Amp. Assembly (PEUl) Schematic Diagram and Component Locations .................... 15
11.5 FM Front End Assembly (P100) Schematic Diagram and Component Locations .................. 17
11s Dial Lamp Assembly (P201) Schematic Diagram and Component Locations ..................... 17
11] Function Lamp Assembly (PYOI ) Schematic Diagram and Component Locations ................. 18
11.8 DLB-l Socket Assembly (PK01) Schematic Diagram and Component Locations ................. . 111
11.9 E0 Amp. Assembly (P400) Schematic Diagram and Component Locations ...................... 19

12. BLOCK DIAGRAM .............................................................. 20

13. CONNECTION DIAGRAMS ........................................................ 21
13.1 For USA. & Canadian Models ................................................... 21
13.2 For European Model ......................................................... 23

14. SCHEMATIC DIAGRAMS ......................................................... 25
14.1 For U.S.A.& Canadian Models ........................................... ' ........ 25
14.2 For European Model ............................................... ' .......... . 27

15. EXPLODED MECHANICAL DIAGRAMS .............................................. 29
15.1 Cabinet .................................................................. 29
15.2 Chassis ................................................................... 31
15.3 Rear Panel for USA & Canadian Models ........................................... 33
15.4 RearPanel for European Model .................................................. 33

16. PACKING MATERIAL EXPLODED VIEW ............................................. 34

17.PARTS LIST .................................................................. 35

18.TECHN|CAL SPECIFICATIONS ..................................................... 44