Pioneer pl 55 service manual

Page 2

PL-SE-ESD

CONTE NTS
1. SPECIFICATIONS
1.1 PL-SSD .............................................. 2
1.2 PL-55 ............................................... 3
2. PARTS AND THEIR FUNCTIONS ................................ 4
3. OPERATION OF MOTOR AND MECHANISM
3.1 Motor ............................................... 6
3.2 Prior to Start of Playing ................................... 7
3.3 Return Operation ....................................... 8
3.4 Stopping Under Manual ................................... 9
4. ADJUSTMENT
4,1 Tonearm Will Not Return to The Arm Rest ...................... 10
4.2 Tonearm Returns to The Arm Rest before The Record Finishes ......... 10
4.3 Tonearm Return Speed Is Incorrect ........................... 10
4.4 Tonearm Stops before It Reaches The Arm Rest ................... 10
4.5 Tonearm Hits The Inside of The Arm Rest ....................... 10
4.6 Tonearm Bounds in The Arm Rest ............................ 11
4.7 Arm Elevator Will Not Move at A Correct Speed ................... 11
4.8 Turntable Will Not Turn or Stop ............................. 11
4.9 Adjustment of The Shorting Switch Contacts ..................... 11
4.10 Adjustment Procedure .................................... 11
4.1 1 Adjustment of Motor Speed ................................ 12
4.12 Line Voltage Selector .................................... 12
5. EXPLODED VIEW AND PARTS LIST
5.1 Mechanisms and Cabinet ................................... 13
5.2 Accessory Parts ......................................... 17
5.3 Auto Return Assembly ................................... 18
5.4 Faking .............................................. 20
6. SCHEMATIC DIAGRAMS AND P.C. BOARD PATTERN
6.1 Schematic Diagrams ...................................... 22

6.2 Power Supply Circuit Assembly .............................. 23