Marantz 2252 Service Manual

Page 1

TABLE OF CONTENTS

SECTIO N PAGE
1. INTRODUCTION ............................................................... 1
2. SERVICE NOTES ............................................................... 1
3. TEST EQUIPMENT REQUIRED FOR SERVICING ........................................ 2
4. AM ALIGNMENT PROCEDURE ..................................................... 2

4.1 AM IF Alignment ........................................................... 2
4.2 AM Frequency Range and Tracking Alignment ........................................ 2
5. FM ALIGNMENT PROCEDURE ..................................................... 3
6. STEREO SEPARATION ALIGNMENT ................................................ 3
7. MUTING THRESHOLD ADJUSTMENT ............................................... 3
8. FM DDLBY LEVEL ADJUSTMENT .................................................. 3
9. POWER AMPLIFIER ADJUSTMENT .................................................. 3
10. POWER SUPPLY ADJUSTMENT .................................................... Cl
11, VOLTAGE CONVERSION FDR EUROPE .............................................. 4
11.1 Voltage. Conversion Chart for Europe ............................................... 4
12. FTZ REGULATION FOR EUROPE ................................................... a
13. MAJOR COMPONENT LOCATIONS .................................................. 5
13.1 Front Panel Adjustment and Component Locations ..................................... 5
13.2 Main Chassis Component Locations (Top View) ....................................... 5
13.3 Rear Panel Adjustment and Component Locations ..................................... Ii
13.4 Main Chassis Component Locations [Bottom View) ..................................... B
13.5 Front Panel Adjustment and Component Locations for Europe ............................. 7
13.6 Main Chassis Componcnt Locations [Top View) tor Europe ................................ 7
13.7 Rear Panel Component Locations (Top View) for Europe ................................. 3
14. DIAGRAM Auo COMPONENT LOCATIONS ............................................ 9
14.1 FM Front End Assembly (P100) Schematic Diagram and Component Locations .................. 9
14.2 FM and AM Tunor Assembly (P2110) Schematic Diagram and Component Locations ................ 11)
14.3 EOL. Amp. Assembly {P4001 Schematic Diagram and Component Locations .................... 11
14.4 Main Amp. Assembly (P701!) Schematic Diagram and Component Locations ..................... 12
14.5 Power Supply Assembly (P8011) Schematic Diagram and Component Locations ................... 13
14.6 Filter. Dolby Assembly 1PH01) Schematic Diagram and Component Location:
for U.S,A. and Canada ........................................................ 13
14.7 LowAHi Fitter Assembly (PHD1) Schematic Diagram and Component Locations
for Europe ................................................................ 13
14.8 Pre-Tone Amp. Assembly (PEUi) Schematic Diagram and Component Locations .......... . , , . . , 14
14.9 System I-Systern 2 Assemva (PTDII Schematic Diagram and Component Locations .............. 14
14.10 Dial Lamp Assembly (P201) Schematic Diagram and Component Locations ..................... 14

15. BLOCK DIAGRAM .............................................................. 15

16. CONNECTION DIAGRAM ......................................................... 15

17. SCHEMATIC DIAGRAM .......................................................... 111

1a. CONNECTION DIAGRAM FOR EUROPE .............................................. 20

19. SCHEMATIC DIAGRAM FOR EUROPE ............................................... 22

21].

EXPLDDED MECHANICAL DIAGRAM ............................................... 241

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SECTION PAGE
2]. PARTS LIST ................................................................. 26 1
22. TECHNICAL SPECIFICATIONS .................................................... 35
23. PACKING MATERIAL EXPLODED VIEW .............................................. 37