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Sharp WF-2000W Service Manual
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Sharp WF-2000W Service Manual

Portable stereo component system
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SPECIFICATIONS .............................................................................................................................................................. 2
VOLTAGE SELECTION ...................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR .................................................................................................. 2
NAMES OF PARTS ............................................................................................................................................................ 3
DISASSEMBLY ................................................................................................................................................................... 4
REMOVING AND REINSTALLING THE MAIN PARTS ...................................................................................................... 5
ADJUSTMENT .................................................................................................................................................................... 6
FITTING OF DIAL POINTER .............................................................................................................................................. 8
NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................. 8
TYPES OF TRANSISTOR AND LED .................................................................................................................................. 9
VOLTAGE ........................................................................................................................................................................... 9
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 10
SERVICE MANUAL
PORTABLE STEREO COMPONENT SYSTEM
MODEL
PORTABLE STEREO COMPONENT SYSTEM
MODEL
CONTENTS

SHARP CORPORATION

WF-2000W(S)
WF-2000W(BK)
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
WF-2000W
No. S4223WF2000WS
Page

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Summary of Contents for Sharp WF-2000W

  • Page 1: Table Of Contents

    WF-2000W SERVICE MANUAL No. S4223WF2000WS PORTABLE STEREO COMPONENT SYSTEM WF-2000W(S) MODEL PORTABLE STEREO COMPONENT SYSTEM WF-2000W(BK) MODEL • In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

  • Page 2: Specifications

    WF-2000W FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS General Radio section Power source: AC 110-127 V/220-240 V, Frequency range: FM; 88 - 108 MHz SW1; 2.3 - 7.3 MHz 50/60 Hz SW2;...

  • Page 3: Names Of Parts

    WF-2000W NAMES OF PARTS Function Selector Switch 4 5 6 Power Indicator Dubbing Speed/Built-in Microphone/FM Mode Switch Graphic Equalizer Controls Volume Control Extra Bass Switch (With Indicator) Fine Tuning Control Tuning Control Built-in Microphone Headphone Socket (TAPE 1) Cassette Compartment...

  • Page 4: Disassembly

    WF-2000W DISASSEMBLY Graphic Front Cabinet Equalizer PWB Caution on Disassembly (B2)x5 ø3x8mm (B1)x1 Follow the below-mentioned notes when disassembling Fine Tuning PWB the unit and reassembling it, to keep it safe and ensure (B2)x2 ø2.6x8mm excellent performance: 1. Take cassette tape out of the unit.

  • Page 5: Removing And Reinstalling The Main Parts

    WF-2000W REMOVING AND REINSTALLING THE MAIN PARTS TAPE MECHANISM SECTION (A1)x1 TAPE 1 ø2x7mm Perform steps 1, 2 and 3 of the disassembly method to (A1)x1 remove the tape mechanism. (See page 4.) Hook ø2x3mm (A2)x2 Record/Playback Head How to remove the record/playback and erase heads (TAPE 1) (See Fig.

  • Page 6: Adjustment

    WF-2000W ADJUSTMENT MECHANISM SECTION TUNER SECTION • Driving Force Check fL: Low-range frequency fH: High-range frequency Torque Meter Specified Value • FM IF/RF Play: TW-2412 Tape 1: Over 60 g Tape 2: Over 50 g Specified Value/ Instrument Test Stage...
  • Page 7 WF-2000W SW1 BAND COVERAGE SW2 BAND COVERAGE CT101 VR102 CT102 T103 AM IF MW BAND T104 T105 COVERAGE fL FM DET. T107 L102 TRACKING fH fL FM TRACKING T106 MW BAND T108 COVERAGE fH FM IF FM BAND CT104 COVERAGE...

  • Page 8: Fitting Of Dial Pointer

    WF-2000W FITTING OF DIAL POINTER "0" Point 1. Remove the Main PWB, the Graphic Equalizer PWB and the Fine Tuning PWB. (See Figure 4-2 in the "Disassem- Dial Pointer(207) Front Cabinet bly" on page 4.) 2. Remove the dial pointer guide and PWB.

  • Page 9: Types Of Transistor And Led

    WF-2000W TYPES OF TRANSISTOR AND LED FRONT VIEW FRONT VIEW VIEW E C B 2SC2412 KR 2SC945 AP L01-224HD KTC3875 GR 3DA8050 L-474CGDK SS8550 SS8050 VOLATGE IC102 IC101 IC201 IC301 IC402 Q201 Q205 Q210 Q220 VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE...

  • Page 10: Schematic Diagram / Wiring Side Of P.w.board

    WF-2000W JK202 LINE INPUT JACK L-CH R-CH IC101 MAIN PWB-A1 IC101 LA1186N LA1186N R263 R264 FM FRONT END C101 BP101 0.001 C108 C107 C109 B.P.F. R102 R104 R103 15P(CH) 5P(CH) 820K 220K SW101-C (CH) C104 BAND 0.001 SELECTOR C110 R131 C106 0.022...

  • Page 11: Speaker Terminals

    WF-2000W JACK L-CH FM IF T108/T106 CT104 CT102 CT103 CT101 TRACKING TRACKING TRACKING TRACKING R264 AM IF T107 T101 T104 T102 T105 GRAPHIC EQUALIZER PWB-A2 MW BAND TRACKING CONVERAGE R266 ANT COIL T103 4.7K GRAPHIC EQUALIZER X-BASS C256 SW501-C R267 2.2/50...
  • Page 12 WF-2000W CN502 GRAPHIC EQUALIZER PWB-A2 R333 A B + - VR304 VR304 100Hz 300Hz GRAPHIC EQUALIZER C305 TAPE TAPE 1 TAPE 1 TAPE 1 TAPE 2 TAPE 2 VR303 MOTOR PLAY FF/REW PLAY FF/REW VR303 500Hz 500Hz GRAPHIC EQUALIZER C313...
  • Page 13 WF-2000W MAIN PWB-A1 C430 R430 CON501 C501 IC403 C429 C514 C425 C512 R429 RADIO C251 R425 R260 C422 C254 R428 R323 C428 C291 C516 D401 R262 C416 R261 SW501 R433 FUNCTION C426 R254 SELECTOR R126 C258 C418 R419 R421 C417...
  • Page 14 WF-2000W AC POWER SUPPLY CORD AC 110-127 V/220-240 V, 50/60 Hz SW601 SO601 VOLTAGE SELECTOR AC INLET AC 220-240 V AC 110-127 V SOCKET (241) (241) T601 POWER TRANSFORMER BATTERY A PWB-A4 (241) COLOR TABLE BROWN RD(R) ORANGE YELLOW (241)

  • Page 15: Parts Guide

    “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the For U.S.A. only following information. Contact your nearest SHARP Parts Distributor to order. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For location of SHARP Parts Distributor, Please call Toll-Free;...
  • Page 16 WF-2000W PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK VR303 92L1702-008002 AG 100 kohm (B)×2,Semi-VR INTEGRATED CIRCUITS [Graphic Equalizer] VR304 92L1702-008006 AG 50 kohms (B)×2,Semi-VR IC101 VHILA1186N/-1 AE FM Front End,LA1186N [Graphic Equalizer] IC102 VHILA1805//-1 AM FM/AM IF MPX.,LA1805...
  • Page 17 WF-2000W PRICE PRICE DESCRIPTION DESCRIPTION PART CODE PARTS CODE RANK RANK AC 10 µF,16V,Electrolytic C244 VCEAZA1CW106M J R115 VRD-ST2CD153J AA 15 kohms,1/6W 220 µF,16V,Electrolytic C245 VCEAZA1CW227W J R116 VRD-ST2CD472J AA 4.7 kohms,1/6W 0.0022 µF,50V,Mylar C246 VCKYKA1HM222K J R117 VRD-ST2CD100J AA 10 ohm,1/6W...
  • Page 18 VRD-ST2CD103J AA 10 kohm,1/6W CABINET PARTS R301 VRD-ST2CD102J AA 1 kohm,1/6W R303~306 VRD-ST2CD222J AA 2.2 kohms,1/6W 92L20021000102 AY Front Cabinet [WF-2000W (S)] R307 VRD-ST2EE221J AA 220 ohms,1/4W 92L20021000104 AY Front Cabinet [WF-2000W (BK)] R308~310 VRD-ST2CD102J AA 1 kohm,1/6W 92L20221000101 BA Rear Cabinet [WF-2000W (S)]...
  • Page 19 92L31048600401 AE Polyethylene Bag,Unit 92L30021000102 AV Nylon Band 92L489QT800201 AD Mic Panel,for Set 92L375QT800101 AC Holder,Mic 92L51020000101 AV Packing Case [WF-2000W (S)] 92L42921000101 AD Bracket,Front Cabinet 92L51020000102 AV Packing Case [WF-2000W (BK)] 92L42921000201 AC Bracket,Dial Pointer 92L579QT800111 AB Label,Japan,for Set...
  • Page 20 WF-2000W 607x3 607x2 606x3 T601 612x4 PWB-B 241x2 605x2 238x2 PWB-A4 PWB-A5 241x3 MIC1 606x2 PWB-A1 VR401 PWB-A2 613x2 605x4 Silicon Grease IC403 262x2 L103 605x2 IC404 613x2 Silicon 606x5 226x2 IC402 Grease 610x2 TAPE PWB-A3 MECHANISM With VR401 245-1, 245-2, 245-3, 245-4, 245-5,...
  • Page 21 WF-2000W SP7(L-CH), SP8(R-CH) SUPER SP1(L-CH), TWEETER SP2(R-CH) 911x2 SP1(L-CH), 911x4 SP2(R-CH) Capacitor 1µF(N.P.) TWEETER Electrolytic (C1,C2) SP7(L-CH), SP3(L-CH), 901(LEFT), SP8(R-CH) SP3(L-CH), SP4(R-CH) 902(RIGHT) 911x4 SP4(R-CH) WOOFER SP5(L-CH), SP6(R-CH) WOOFER 906(LEFT), 907(RIGHT) SP5(L-CH), SP6(R-CH) 911x4 909x2 SP1(L-CH), SP2(R-CH) 903(LEFT), TWEETER 904(RIGHT)
  • Page 22 WF-2000W — M E M O — – 7 –...
  • Page 23 WF-2000W — M E M O — – 8 –...
  • Page 24 WF-2000W © COPYRIGHT 2002 BY SHARP CORPORATION 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, recording, or otherwise, without prior written permission of the publisher.

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