SX-SW515
4
12
34
12
3
4
C
D
F
A
B
E
CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 2
Important Check Points for Good Servicing......................................................................................................... 3
CONTENTS ......................................................................................................................................................... 4
1. SERVICE PRECAUTIONS ............................................................................................................................... 5
2. SPECIFICATIONS ............................................................................................................................................ 6
2.1 ACCESSORIES ......................................................................................................................................... 6
2.2 SPECIFICATIONS...................................................................................................................................... 6
2.3 PANEL FACILITIES .................................................................................................................................... 7
3. BASIC ITEMS FOR SERVICING .................................................................................................................... 11
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 11
3.2 PCB LOCATIONS .................................................................................................................................... 12
3.3 JIGS LIST ................................................................................................................................................ 13
4. BLOCK DIAGRAM .......................................................................................................................................... 14
4.1 OVERALL BLOCK DIAGRAM.................................................................................................................. 14
5. DIAGNOSIS .................................................................................................................................................... 16
5.1 CIRCUIT DESCRIPTION ......................................................................................................................... 16
5.1.1 CIRCUIT DESCRIPTION OF DIGITAL AMP. SECTION .................................................................... 16
5.1.2 SPECIFICATIONS FOR THE PROTECTION CIRCUITS FOR THE DIGITAL AMPLIFIER ............... 17
5.1.3 CONDITIONS FOR SWITCHING THE ROTATION SPEED OF THE FAN ........................................ 18
6. SERVICE MODE ............................................................................................................................................ 19
6.1 SERVICE TEST MODE............................................................................................................................ 19
7. DISASSEMBLY ............................................................................................................................................... 22
8. EACH SETTING AND ADJUSTMENT ........................................................................................................... 25
8.1 ADJUSTMENT ......................................................................................................................................... 25
9. EXPLODED VIEWS AND PARTS LIST .......................................................................................................... 26
9.1 PACKING SECTION ................................................................................................................................ 26
9.2 EXTERIOR SECTION.............................................................................................................................. 28
9.3 DISPLAY UNIT ......................................................................................................................................... 30
10. SCHEMATIC DIAGRAM ............................................................................................................................... 32
10.1 MAIN ASSY (1/5) ................................................................................................................................... 32
10.2 MAIN ASSY (2/5) ................................................................................................................................... 34
10.3 MAIN ASSY (3/5) ................................................................................................................................... 36
10.4 MAIN ASSY (4/5) ................................................................................................................................... 38
10.5 MAIN ASSY (5/5) ................................................................................................................................... 40
10.6 AC INLET, CONNECT and FL ASSYS .................................................................................................. 42
10.7 JACK TX ASSY ...................................................................................................................................... 44
10.8 POWER SUPPLY UNIT.......................................................................................................................... 46
10.9 WAVEFORMS ........................................................................................................................................ 48
11. PCB CONNECTION DIAGRAM ................................................................................................................... 49
11.1 MAIN ASSY ........................................................................................................................................... 50
11.2 AC INLET ............................................................................................................................................... 54
11.3 CONNECT ASSY................................................................................................................................... 55
11.4 FL ASSY ................................................................................................................................................ 56
11.5 JACK TX ASSY ...................................................................................................................................... 58
11.6 POWER SUPPLY UNIT.......................................................................................................................... 60
11.7 DISPLAY ................................................................................................................................................ 62
12. PCB PARTS LIST ......................................................................................................................................... 63