Philips FWT9200 Series

To Next Page

all

TABLE OF CONTENTS

Page

Technical specification ...........................................................1-16

Safety instruction......................................................................2-1

ESD protection..........................................................................2-4

Set Block diagram ....................................................................3-1

Set Wiring diagram...................................................................4-1

Disassembly diagram ...............................................................5-1

Main board

Circuit diagram........................................................................6-1

Layout diagram.......................................................................6-2

Display board

Circuit diagram........................................................................7-1

Layout diagram.......................................................................7-2

CD board

Circuit diagram........................................................................8-1

Layout diagram.......................................................................8-2

MCU board

Circuit diagram........................................................................9-1

Layout diagram.......................................................................9-2

Tuner board

Circuit diagram......................................................................11-1

Layout diagram.....................................................................11-2

AMP board

Circuit diagram.............................................................10-1..10-2

Layout diagram......................................................................10-3

Mechanical Exploded view......................................................12-1

transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without

the prior permission of Philips.

Published by LX 1 Service Audio Printed in The Netherlands Subject to modiﬁcation

Version 1.0

Mini Hi-Fi

System

FWT9200/

317

3140 038 60210

Need help?

Do you have a question about the Philips FWT9200 Series and is the answer not in the manual?

This document describes the Philips FWT9200 Mini Hi-Fi System, a comprehensive audio system designed for a rich listening experience.

Function Description

The FWT9200 is a versatile Mini Hi-Fi System that integrates multiple audio sources and playback functionalities. It features a digital tuner, a 3-CD/MP3 changer, and USB connectivity, allowing users to enjoy music from various media. The system is equipped with a powerful amplifier, a VFD display for clear information, and a remote control for convenient operation. It also supports subwoofer boxes for enhanced bass, indicating a focus on delivering a robust sound profile.

Key functions include:

MP3-USB Playback: Supports MP3 files from USB devices.
CD/MP3 Playback: Features a 3-CD changer compatible with both audio CDs and MP3 CDs.
Digital Tuner: Provides access to FM and AM radio broadcasts.
Auxiliary Input: Allows connection of external audio sources.
Microphone Input: Supports karaoke functionality.
USB Recording (RIP): Enables recording from CD/MP3 to USB.
Bluetooth® Connectivity: For wireless audio streaming.
Audio In/PC In: Additional input options.
Karaoke: Dedicated function for singing along.
Pure Digital Sound: Emphasizes high-quality digital audio processing.
MAX Sound: A feature likely designed to maximize audio output and impact.
650W RMS Total Power: Indicates a high power output for a loud and clear sound.

Important Technical Specifications

General:

LIFETIME: 7 Years
Power Supply: Switching Mode Power Supply (AC100V to 250V)
Standby Power Consumption: < 1W (with display), < 0.5W (ECO Power mode without display)
Maximum Power Consumption: < 250W (@1/8 Prated, NOM. A, INPUT)

Audio Amplifier (2x360W + 2x360W + 2x180W for FWT9200 Power Amplifier, Subwoofer Boxes of 8 Ohm x 2):

Total Power: 1800W, matching LOUDSPEAKER of 4 x 8 Ohm + 2 x 4 Ohm.
Input Source: CD/MP3 Tuner USB AUX 3DSC (Digital Sound Control).
Output Power (RMS):
- Main L/R: 360W (1 Ohm)
- Subwoofer: 360W (1 Ohm)
- Rear L/R: 180W (1 Ohm)
Rated Impedance:
- FRONT L/R: 8 Ohms x2 at 40Hz to 16KHz
- Subwoofer L/R: 8 Ohms x2 at 40Hz to 16KHz
- Rear L/R: 4 Ohms x2 at 40Hz to 16KHz
Input Sensitivity (±2dB): Rated output power at 1 kHz and 10 kHz.
Channel Difference: < 3 dB at -40dB.
Hum & Noise: < -45 dB (A-weighted)
THD + Noise (0dB, 1KHz): < 2%
Signal to Noise Ratio (0dB, 1KHz) (A-weighted): > 55dB
Frequency Response: 40Hz-16KHz (reference 1KHz)

Tuner:

Wave Range:
- FM: 87.5 - 108.00 MHz (50kHz/100kHz grid)
- AM: 530 - 1700 kHz (9kHz/10kHz grid)
Aerial: PIGTAIL ANT WIRE 300 Ohm (FM), FRAME ANT. 18.1 uH (AM).
Search Tuning Sensitivity: α26 +/-10 dB.
S/N Ratio: 45 dB (AM), 50 dB (FM).
Image Rejection: 32 dB (MW), 40 dB (FM).
IF Rejection: 28 dB (MW), 65 dB (FM).

CD/MP3:

Output Resistance: <= 1.5 kOhm
Output Voltage RL = 33 k ohm (0dB, 1 Khz): 830mV/-1dB
Channel Unbalance: <= +/- 3 dB
THD + Noise (0dB, 1Khz): <=2%
Channel Crosstalk (0dB, 1 KHz): >= 45dB
Signal to Noise Ratio (0dB, 1kHz) (A-weighted): >= 55dB
Frequency Response: 40HZ-16KHZ (reference 1KHZ)

USB/SD-Card:

Channel Crosstalk (0 dB, 1 KHz): >= 45dB (with 1 KHz filter)
Signal to Noise Ratio (0dB, 1 KHz): >= 55dBA (A-weighted)
Channel Unbalance (0 dB, 1 KHz): < +/- 3dB

Bluetooth:

Version: Ver2.1 + EDR
Frequency Response: 125-16khz (±7 dB)
S/N (Unweighted): ≥55 dB
S/N (A-weighted): ≥60 dBA
Channel Separation: ≥45 dB
Distortion: <1 %
Connected Distance: 8~10 meter
10%THD Output Power (EQ:FLAT): Per channel test total:1800 W

Microphone:

Output Power (RMS): 550 mW (+/- 20%)
Input Level (Rms): 1 mV (lim: 1.5 mV rms)
Max Hum Noise: 6 mV
Frequency Response: 63HZ (-12 to +4 dB), 1KHZ (0 dB ref), 10KHZ (-3 to +3 dB)

Clock/Timer:

Timer Setting: Clock and Timer
Timer Wakeup Mode: CD or Tuner or USB
Volume at Wakeup: Last Setting
Clock Accuracy: Nom: 1 sec/day, Limit: 2 sec/day

Usage Features

The FWT9200 offers several features to enhance user experience:

Digital Sound Control (DSC): Includes various sound modes like JAZZ, POP, TECHNO, and OPTIMAL, allowing users to tailor the audio output to their preferences.
Incredible Sound (IS): A feature designed to provide an enhanced sound experience.
Dynamic Bass Boost (DBB): For deeper and more impactful bass.
MAX Sound: Likely a one-touch function to maximize volume and sound presence.
USB Recording: Allows direct recording of audio from CDs or MP3s to a USB device.
Timer Function: Enables scheduling of playback from CD, Tuner, or USB.
Remote Control: For convenient operation from a distance.
VFD Display: Provides clear visual feedback on the system's status and settings.
Bluetooth: For wireless streaming from compatible devices.
Karaoke: Microphone inputs and dedicated functions for singing.

Maintenance Features

The manual provides important guidelines for safety and maintenance:

Safety Instructions: Emphasizes the importance of using qualified service personnel for repairs and restoring the set to its original condition with identical specified parts.
ESD Protection: Highlights the susceptibility of ICs and semiconductors to electrostatic discharges and provides instructions for safe handling during repairs, including using a conductive mat and wrist strap.
Laser Product Safety: Class 1 Laser Product warning, advising against direct exposure to the invisible laser radiation when the device is open. Specifically, "DO NOT TOUCH THE LENS" is emphasized.
Leakage Current Check: Detailed procedure for checking leakage current after servicing to ensure no shock hazard exists.
Battery Handling Guideline: Specific instructions for handling the soft-package battery to prevent damage, including avoiding sharp edges, not bending or folding sealing edges, not deforming folding edges, not bending tabs, avoiding mechanical shock, and preventing short circuits. It also warns against incorrect battery replacement due to explosion risk and exposure to excessive heat.