Pioneer sx 6000 service manual

Page 2

SX-BDOO

CONTENTS
1. SPECIFICATIONS ........................................ 1
2. FRONT PANEL FACILITIES ............................ 3
3. CONNECTION DIAGRAM ................................. 5

4. CIRCUIT DESCRIPTION
4- 1 BLOCK DIAGRAM ....................................... 7
4- 2 ANTENNA CIRCUIT ............. 9
4» 3 FM FRONT END ................ 9
4- 4 FM IF AMPLIFIER .............. 9
4- 5 MUTING CIRCUIT ............... 9
4- 6 MPX DECODER ................. 9
4- 7 AM TUNER .................... 9
4- 8 LOW LEVEL INPUT CIRCUIT .............................. 9
4- 9 HEAD AMPLIFIER ....................................... 9
4-10 HIGH LEVEL INPUTS AND CONTROL CIRCUITS .............. 10
4-11 CONTROL AMPLIFIER, TONE CONTROLS AND FILTERS ....... 10
4-12 POWER AMPLIFIER ...................................... 10
4-13 POWER SUPPLY ........................................ 10
5. DISASSEMBLY
5- 1 WOODEN CASE .......................................... 11
5- 2 FRONT PANEL .......................................... 11
5- 3 BOTTOM PLATE ......................................... 11
5- 4 PARTS, PCB LOCATION ................................... 12
6. DIAL CORD STRINGING ................................ 13
7. ALIGNMENT PROCEDURES

7- 1 REQUIREDINSTRUMENTS ................................ 14
7- 2 10.7MHZ ALIGNMENT .................................... 14
7- 3 FM FRONT END ALIGNMENT .............................. 15
7- 4 FM MPX DECODER ALIGNMENT ........................... 15
7- 5 AM 455kHz ALIGNMENT .................................. 16
8. SCHENATIC DIAGRAM, PCB PATTERNS ................ 17
9. PARTs LIST .............................................. 31
10. PACKING PROCEDURE AND PARTS ..................... 44