Marantz PM 551 Service Manual

Page 2

TABLE OF CONTENTS

SECTION PAGE
INTRODUCTION .................................................................. 1
1. SHOCK, FIRE HAZARD SERVICE TEST ................................. 1
2. P.W. BOARDS ................................................................ 1
3. TEST EQUIPMENT REQUIRED FOR SERVICING .................................. 2
4. VOLTAGE CONVERSION ...................................................... 2
5. CIRCUIT DESCRIPTION ........................................................ 3
6. BLOCK DIAGRAM ............................................................ 9
7. DIAGRAM AND COMPONENT LOCATIONS ..................................... 10
7.1 Graphic Equalizer Assembly (PFOO) Schematic Diagram and Component Locations .................. 10
7.2 Visual Selector Assembly (PLOO) Schemetic Diagram and Component Locations .................... 10
7.3 Input Selector Assembly (P800) Schematic Diagram and Component Locations ..................... 11
7.4 VD Input Assembly (PVOO) Schematic Diagram and Component Locations ........................ 11
7.5 VCR EASY Remote Input Assembly (Pwooi Schematic Diagram and Component Locations ............ 11
7.6 Front Switch Assembly (PUOO) Schematic Diagram and Component Locations ..................... 13
7.7 Main Amp. Assembly (P700) Schematic Diagram and Component Locations ................... 14
7.3 Volume Indicator Assembly IPU50) Schematic Diagram and Component Locations ................ 14
7.9 Speaker Switch Assembly (PTOOI Schematic Diagram and Component Locations ................... 15
8. EXPLODED VIEW AND PARTS LIST
9. ELECTRICAL PARTS LIST ......................
10. TECHNICAL SPECIFICATIONS ..................
11. SCHEMATIC DIAGRAM .......................................................
~I: J: * 4L

How to use this service manual

0 The "Common parts which Marantz Japan, Inc. has established are eliminated from this
service manual.

I These "Common parts" are applied to all models in the service manuals arranged and issued
by MJl.

- To indicate clearly the common parts in the schematic diagram, a line is drawn above or
under the Rel. Desig. No. of applicable parts.

0 "Common parts" can be supplied from the Marantz service center as ever.
In case of ordering, please establish the parts number of 10 figures following the procedure
mentioned in this service manual "How to establish the parts number for common parts".

(NOTE)
When you order parts to the Marantz parts center, please take notice of the lollowing points.

1) Please correctly write the parts number of 10 figures following the rule.

2) Since ordering parts by the Ref. Desig. No. or ratings indicated in the schematic diagram
does not satisfy the above conditions, the Marantz parts supply system does not work
properly.

As this case is apt to cause a trouble. please pay attention to it.