Philips SW3700/17S - User Manual

Service Manual
Service
Service
Service
Service
Service
SW3700/17S
©
Copyright 2002 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.
Published by KC-ET0227 Service Audio Printed in The Netherlands Subject to modification
Active Subwoofer
Version 1.0
TABLE OF CONTENTS
Page
SW3700 Location of PC Boards/Specifications .........1-2
SW3800 Location of PC Boards/Specifications .........1-3
Measurement Setup ...................................................1-4
ESD & Safety Instruction ............................................1-5
Disassembly Instructions & Service Positions .............. 2
Set Block & Wiring Diagram .......................................... 3
Amplifier / Jack / LED Board.......................................... 4
Power & VR Board ........................................................ 5
Mechanical Exploded View & Parts List ........................ 6
GB
3139 785 30068
SW3800/00S

Summary

SW3700 PC Board Identification

SW3700 Technical Specifications

SW3800 PC Board Identification

SW3800 Technical Specifications

Measurement Setup

Electrostatic Discharge and Safety Guidelines

General ESD Precautions

Guidelines for handling sensitive components to prevent electrostatic discharge damage during repair.

Service Safety Regulations

Mandatory safety requirements for maintaining original condition and using specified replacement parts.

Leakage Current Testing

Post-service test to ensure no shock hazard from exposed metal parts to earth ground.

Subwoofer Disassembly Instructions

Grill Base and Speaker Driver Removal

Step-by-step guide for removing the grill base and speaker driver from the subwoofer.

Front Assembly Disassembly

Instructions for safely detaching the front panel assembly of the subwoofer.

Rear Assembly Disassembly

Procedure for accessing and removing the rear printed circuit board assembly.

SW3700 Service Setup

SW3800 Service Setup

Block Diagram

Wiring Diagram

Amplifier, Jack, LED Board Information

Component Voltages

Table detailing voltage measurements for key integrated circuits on the amplifier board.

Circuit Diagram

PCB Layout View

Amplifier, Jack, and LED Board Parts List

Power and VR Board Introduction

Power Board Schematics and Layout

Power Schematic Diagram

Schematic representation of the power supply circuit for the subwoofer.

Power PCB Layout View

Visual guide to the component placement on the power supply printed circuit board.

VR Board Schematics and Layout

VR Schematic Diagram

Schematic of the volume control (VR) circuit.

VR PCB Layout View

Component layout for the volume control printed circuit board.

Power and VR Board Parts List

SW3700 Exploded Drawing

SW3800 Exploded Drawing

SW3700 Mechanical Parts and Screws

SW3700 Mechanical Parts List

List of mechanical components for the SW3700 model.

SW3700 Screw List

List of screws used in the mechanical assembly of the SW3700 model.

SW3800 Mechanical Parts and Screws

SW3800 Mechanical Parts List

List of mechanical components for the SW3800 model.

SW3800 Screw List

List of screws used in the mechanical assembly of the SW3800 model.

Philips SW3700/17S Specifications