Service Guide
SW-HF 5.1 5050
Revision History………………………………………………………………….2
Table of contents……………………………………………………………...…3
Getting Start…………………………………………………….………………...4
Conventions Used in this Guide…………………………………………….…4
Safety Precautions………………………………………………………………
4
Chapter 1. How to Handle Defective Returns……………………………….5
1.2 Problem
………………………………………………………………………6
1.2.1 No power
，
LED
（
indicator
）
unlighted………………………….……
7
1.2.2 No sound
…………………………………………………………….…….8
1.2.3 Front channel no sound (including either FR or FL no sound)
….……9
1.2.4 Rear channel no sound (including either RR or RL no sound)
...……10
1.2.5 Center no sound
…………………………………………………………11
1.2.6 Woofer no sound
………………………………………………….…..…12
1.2.7 Input no sound
………………………………………………….……..…13
1.2.8 Remote control no use
………………………………….………….…...14
1.2.9 Noise………………………….……………………….……………..….
15
1.2.10 LED indicators abnormal…………………………………….………..
16
1.2.11 Keystrokes in the front panel no use…………………………………17
Chapter 2. Specification…………………………………………………..……18
Satellite…………………………………………………………………….…….18
Woofer……………………………………………………………………………19
Chapter 3. Block diagram…………………………………………..………….20
Chapter 4. Exploded view………………………………………………………21
Subwoofer……………………………………………………………….……….21
Satellite (Center)…………………………………………………..…….………22
Satellite (Front)……………………………………………………..…………...23
Satellite (Rear)……………………………………………………..……………23
Chapter 5. Part list…………………………………… …………….…………...24
Woofer………………………………………………………….………………..24
Center…………………………………………………………………………...25
Rear………………………………………………………………….…..……...25
Front………………………………………………………………..……..……..25
Chapter 6 Important notes……………………………………………………….26
Chapter 7 Circuit diagram………………………………………………………..27
SW-HF 5.1 INPUT PCB……………………………………….…….………...27
SW-HF 5.1 CON PCB…………………………………………..……………..28
SW-HF 5.1 AMP PCB………………………………………………………….29
SW-HF 5.1 SWAMP PCB……………………………………………………..30
SW-HF 5.1 REM PCB………………………………………….………………31
Version 1.1 Page 3 of 31
Table of Contents
