Pioneer spec 2 service manual

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pioneer spec 2 service manual

Extracted text from pioneer spec 2 service manual (Ocr-read)


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CONTENTS

1. SPECIFICATIONS ..................................................... 3
2. FRONT PANEL FACILITIES ............................................ 4
3. CONNECTION DIAGRAM .............................................. 5
4. CIRCUIT DESCRIPTION
4.1 Power Amplifier ................................................... 6
4.2 Peak Level Meter Circuit ............................................ 7
4.3 Protection Circuit .................................................. 8
4.4 Surge Current Suppressor Circuit ...................................... 10
5. BLOCK DIAGRAM .................................................... 11
6. ADJUSTING PROCEDURES
6.1 Idle Current Adjustment ............................................ 13
6.2 Current Limiter Sensitivity Adjustment ................................. 14
6.3 Meter Amplifier Adjustment .......................................... 15
7. DISASSEMBLY ........................................................ 16
8. PARTS LOCATIONS .................................................. 20
9. EXPLODED VIEWS .................................................... 23

10. SCHEMATIC DIAGRAMS, P. C. BOARD PATTERNS AND
PARTS LIST

10.1 Schematic Diagram and Miscellaneous Parts .............................. 30
10.2 Power Supply Circuit Assembly (AWR-093) .............................. 33
10.3 Power Amplifier Assembly (AWH-045) .................................. 37
10.4 Meter Amplifier Assembly (AWM-081) .................................. 42
11, PACKING ............................................................ 47

12. PARTS LIST OF EXPLODED VIEWS ...................................... 4B