Download Sharp R-21JC Service manual
Transcript
R-21JC SUPPLEMENTAL SERVICE MANUAL S3907R21HCP// LIGHT DUTY COMMERCIAL MICROWAVE OVEN 1000W/ R-21JC TIME GUIDE FOR ONE 15 - 30 sec. Bagel, Roll Muffin, Pastry Pie Slice 2 - 3 min. Casserole, Stew Chili, Chowder Popcorn, 3.5 oz. 40 50 1 E F 30 20 C 10 D SERVING 30 - 60 sec. Hot Dog Pizza Slice Small Sandwich 1 - 2 min. Beverage, Soup Large Sandwich Popcorn, 1.5 oz. H I 2 J K L M COMM ERCIA N L MICR O T WAVE O VEN MODEL 1.5 G B A 0 6 O S R P Q R-21JC 2.5 3 4 5 INSTRUCTIO NS With the door closed,turn the timer to the desired time. Oven will begin operating immedia tely. In the interest of user-safety the oven should be restored to its original condition and only parts identical to those specified should be used. To shut oven off manually,return to "0". timer WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and current. Contact with the following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..) This is a supplemental Service Manual for Model R-21JC. This model is quite similar to base model R-21HC. Use this supplemental manual together with the Base Model Service Manual (Reference No. is S7813R21HCP//) for complete operation, service information, etc.. TABLE OF CONTENTS Page PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ................... INSIDE FRONT COVER BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER WARNING TO SERVICE PERSONNEL ................................................................................................................ 1 FOREWORD AND WARNING ............................................................................................................................... 2 PRODUCT SPECIFICATIONS .............................................................................................................................. 3 SCHEMATIC DIAGRAM ........................................................................................................................................ 3 PARTS LIST .......................................................................................................................................................... 4 PACKING AND ACCESSORIES ........................................................................................................................... 9 SHARP CORPORATION This document has been published to be used for after sales service only. The contents are subject to change without notice. R-21JC PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary: (1) interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse. (c) Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections. (d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner. (e) A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner. BEFORE SERVICING Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual. If microwave emissions level is in excess of the specified limit, contact SHARP ELECTRONICS CORPORATION immediately @1-800-237-4277. If the unit operates with the door open, service person should 1) tell the user not to operate the oven and 2) contact SHARP ELECTRONICS CORPORATION and The Food and Drug Administration's Center for Devices and Radiological Health immediately. Service personnel should inform SHARP ELECTRONICS CORPORATION of any certified unit found with emissions in excess of 4mW/cm2. The owner of the unit should be instructed not to use the unit until the oven has been brought into compliance. R-21JC WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock. (Example) High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc.. Read the Service Manual carefully and follow all instructions. Don't Touch ! Danger High Voltage When the testing is completed, 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Reconnect the leads to the primary of the power transformer. 5. Reinstall the outer case (cabinet). 6. Reconnect the power supply cord after the outer case is installed. 7. Run the oven and check all functions. Before Servicing 1. Disconnect the power supply cord remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. , and then WARNING:RISK OF ELECTRIC SHOCK. DISCHARGE THE HIGH-VOLTAGE CAPACITOR BEFORE SERVICING. The high-voltage capacitor remains charged about 60 seconds after the oven has been switched off. Wait for 60 seconds and then short-circuit the connection of the highvoltage capacitor (that is the connecting lead of the highvoltage rectifier) against the chassis with the use of an insulated screwdriver. After repairing 1. Reconnect all leads removed from components during testing. 2. Reinstall the outer case (cabinet). 3. Reconnect the power supply cord after the outer case is installed. 4. Run the oven and check all functions. Whenever troubleshooting is performed the power supply must be disconnected. It may in, some cases, be necessary to connect the power supply after the outer case has been removed, in this event, 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Disconnect the leads to the primary of the power transformer. 5. Ensure that the leads remain isolated from other components and oven chassis by using insulation tape. 6. After that procedure, reconnect the power supply cord. Microwave ovens should not be run empty. To test for the presence of microwave energy within a cavity, place a cup of cold water on the oven turntable, close the door and set the power to HIGH and set the microwave timer for two (2) minutes. When the two minutes has elapsed (timer at zero) carefully check that the water is now hot. If the water remains cold carry out Before Servicing procedure and reexamine the connections to the component being tested. When all service work is completed and the oven is fully assembled, the microwave power output should be checked and a microwave leakage test should be carried out. 1 R-21JC SERVICE MANUAL LIGHT DUTY COMMERCIAL MICROWAVE OVEN R-21JC FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-21JC. The model R-21JC is quite similar to base model R-21HC (Refer No. is S7813R21HCP//). It is recommended that service personnel carefully study the entire text of this manual and the base model's manual so that they will be qualified to render satisfactory customer service. Check the interlock switches and the door seal carefully. Special attention should be given to avoid electrical shock and microwave radiation hazard. WARNING Never operate the oven until the following points are ensured. (A) The door is tightly closed. (B) The door brackets and hinges are not defective. (C) The door packing is not damaged. (D) The door is not deformed or warped. (E) There is no other visible damage with the oven. Servicing and repair work must be carried out only by trained service personnel. DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing. Service personnel - Do not contact the following parts while the appliance is energized; High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness; If provided, Vent Hood, Fan assembly, Cooling Fan Motor. All the parts marked “*” on parts list are used at voltages more than 250V. Removal of the outer wrap gives access to voltage above 250V. All the parts marked “∆” on parts list may cause undue microwave exposure, by themselves, or when they are damaged, loosened or removed. SHARP ELECTRONICS CORPORATION SHARP PLAZA, MAHWAH, NEW JERSEY 07430-2135 2 R-21JC SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts 14 Amperes 60 Hertz / Single phase, 3 wire grounded 1000 watts (IEC 705 Test Procedure) Operating frequency of 2450MHz Power Output Case Dimensions Width 20-1/2" (520mm) Height 12-1/8" (309mm) Depth 16" (406mm) Width 13-7/8" (353mm) Height 8-1/8" (207mm) Depth 14-5/8" (370mm) Cooking Cavity Dimensions (1.0 Cubic Feet ) Control Complement Light Up Dial (6 minutes) No cooking control Oven Cavity Light Safety Standard Yes UL Listed FCC Authorized DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J, NSF Certified SCHEMATIC NOTE: CONDITION OF OVEN 1. LIGHT UP DIAL OFF. 2. DOOR CLOSED. Indicates components with potential above 250 V. THERMAL THERMAL CUT-OUT CUT-OUT 125˚C (OVEN) 145˚C (MAG.) MONITOR SWITCH RY2 COOK RELAY RY1 PRIMARY INTERLOCK RELAY AC120V 60 Hz CONTROL UNIT A3 A1 OL DOOR SENSING SWITCH OVEN LAMP FM FAN MOTOR AM ANTENNA MOTOR SECONDARY INTERLOCK SWITCH Figure O-1 Oven Schematic-OFF Condition 3 CAPACITOR 0.94 µF 2400V MAGNETRON POWER TRANSFORMER A5 RECTIFIER MONITOR FUSE 20A NOTE: R-21JC PARTS LIST Note: The parts marked “∆” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. REF. NO. PART NO. DESCRIPTION Q'TY CODE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 AK AF AH AV AV AV AU AG AG AY AQ AP AK BM BN 1 1 1 2 1 AX AS AQ AC AF 1 1 1 1 1 1 1 1 1 1 1 1 2 1 4 3 1 16 1 1 20 1 1 1 1 1 1 4 2 2 1 1 1 1 2 1 1 1 1 1 2 2 1 BH AG AC AF AF AA AA AA AA AM AA AA AA AD AE AA AA AA AE AK AD AB AA AB AA AB AB AB AB AA AA AA AB AD AA AA AA AA AA AA AA AA AA ELECTRIC PARTS * * * * ∆* 1- 1 1- 2 1- 3 1- 4 1- 5 1- 6 1- 7 1- 8 1- 9 1-10 1-11 1-12 1-13 1-14 1-15 FFS-BA015WRK0 QSW-MA051WRE0 QSW-MA135WRE0 FACCDA078WRE0 FH-DZA084WRK0 RC-QZA242WRE0 RMOTEA376WRE0 QFSHDA009WRE0 QSOCLA021WRE0 RLMPTA072WRE0 RMOTDA233WRE0 RTHM-A080WRE0 RTHM-A096WRE0 RTRN-A570WRE0 RV-MZA197WRE0 Monitor fuse and monitor switch assembly Door sensing switch Secondary interlock switch Power supply cord High voltage rectifier assembly High voltage capacitor Fan motor Fuse holder Oven lamp socket Oven lamp Antenna motor Thermal cut-out 145 deg. (MAG) Thermal cut-out 125 deg. (OVEN) Power transformer Magnetron 22222- GCABUA674WRP0 GDAI-A311WRW0 GCOVHA406WRW0 GLEGPA074WRE0 GLEGPA076WRF0 Outer case cabinet Base plate Base plate cover Foot Leg CPWBFA804WRK0 QCNCMA430DRE0 PTUBBA005WRE0 VCF2B62CA225K VCEAB31VW108M RC-KZA087DRE0 VCEAB31CW476M RC-KZA087DRE0 VCKYD11CY103N VCEAB31HW104M VCEAB31VW106M VCKYD11CY103N VCKYD11CY103N RCRS-A012DRE0 VHD1N4005E61B VHD1SS270A/-1 VHD1SS270A/-1 VHD1SS270A/-1 QFS-AA005DRE0 RH-IZA902DRE0 VHPLTL1CHE/-3 VS2SC1740S/-3 VS2SA1267Y/-3 VSDTC143ES/-3 VSDTA143ES/1B VSDTC143ES/-3 VSDTC143ES/-3 VSDTA143ES/-3 VRS-B13AA301J VRS-B13AA511J VRD-B12EF102J VRD-B12EF472J VRD-B12HF104J VRS-L63DA101J VRD-B12EF472J VRD-B12EF472J VRD-B12EF473J VRD-B12EF472J VRD-B12EF152J VRD-B12EF332J VRD-B12EF104J VRD-B12EF472J VRD-B12EF431J Control unit assembly 3-pin connector (CN-A) Insurating tube Capacitor 2.2 uF 160VAC Capacitor 1000 uF 35V Capacitor 0.1 uF 50V Capacitor 47 uF 16V Capacitor 0.1 uF 50V Capacitor 0.01 uF 16V Capacitor 0.1 uF 50V Capacitor 10 uF 35V Capacitor 0.01 uF 16V Capacitor 0.01 uF 16V Ceramic resonator (CST4.00MGW) Diode (1N4005E) Diode (1SS270A) Diode (1SS270A) Diode (1SS270A) IC PROTECTOR LSI Light emitting diode (LED) Transistor (2SC1740S) Transistor (2SA1267Y) Transistor (DTC143ES) Transistor (DTA143ESXHZ) Transistor (DTC143ES) Transistor (DTC143ES) Transistor (DTA143ES) Resistor 300 ohm 1W Resistor 510 ohm 1W Resistor 1.0k ohm 1/4W Resistor 4.7k ohm 1/4W Resistor 100k ohm 1/2W Resistor 100 ohm 2W Resistor 4.7k ohm 1/4W Resistor 4.7k ohm 1/4W Resistor 47k ohm 1/4W Resistor 4.7k ohm 1/4W Resistor 1.5k ohm 1/4W Resistor 3.3k ohm 1/4W Resistor 100k ohm 1/4W Resistor 4.7k ohm 1/4W Resistor 430 ohm 1/4W CABINET PARTS 1 2 3 4 5 CONTROL PANEL PARTS 3- 1 3- 1A 3- 1B C2 C3 C4 C5 C6 C7 C20 C21 C30 C60-61 CF1 D1-4 D20-22 D30 D70-85 FUSE1 I-1 LD1-20 Q1 Q2 Q20 Q21 Q22 Q40 Q70-73 R1-2 R3-4 R5 R6 R10 R11 R20-21 R30 R31 R40 R41 R42 R60-61 R62-63 R70 4 R-21JC REF. NO. R71 R72 R73 R74 RY1 RY2 SP1 SW1 VRS1 ZD1-3 ZD4-5 ZD6 3- 2 3- 2-1 3- 2-2 3- 2-3 3- 3 3- 4 3- 5 PART NO. VRD-B12EF331J VRD-B12EF241J VRD-B12EF151J VRD-B12EF101J RRLY-A110DRE0 RRLY-A098DRE0 RALM-A014DRE0 RVR-BA018WRE0 RH-VZA040DRE0 VHEHZ11A3//-1 VHEHZ6C3///-1 VHEHZ4C3///-1 FPNLCB434WRK0 HPNLTA137WRE0 GCOVAA260WRP0 PRNGFA001WRF0 TCAUAA076WRR0 JKNBKA606WRM0 XEPSD30P08XS0 DESCRIPTION Resistor 330 ohm Resistor 240 ohm Resistor 150 ohm Resistor 100 ohm Relay (OMIF-S-124LM) Relay (DU24D1-1P(M)) Buzzer (PKM22EPT) Rotary encoder Varistor (10G471K) Zener diode (HZ11A3) Zener diode (HZ6C3) Zener diode (HZ4C3) Panel sub assembly Timer sheet C/P case Ring User caution label Timer knob Screw; 3mm X 8mm 1/4W 1/4W 1/4W 1/4W Q'TY CODE 1 1 1 1 1 1 1 1 1 3 2 1 1 1 1 1 1 1 5 AA AA AA AA AL AL AG AK AF AA AA AA BA AH BA AD AB AL AA 1 1 1 1 1 3 1 1 1 1 1 1 1 1 2 1 2 1 1 5 4 1 1 3 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 BL — AF AF AF AC AC AL BL AY AQ AK AM BB AB AN AG AL AK AD AD AF AF AA AC AC AB AF AD AD AL AF AM AC AL AC AE AC AD AL AK 1 1 1 1 1 1 1 1 1 AZ AB AW BQ AK AN AU AQ AN OVEN PARTS 4- 1 ∆ 4- 2 ∆ 4- 3 4- 4 4- 5 4- 6 4- 7 4- 8 4- 9 4-10 4-11 4-12 4-13 4-14 4-15 4-16 4-17 4-18 4-19 4-20 4-21 4-22 4-23 4-24 4-25 4-26 4-27 4-28 4-29 4-30 4-31 4-32 4-33 4-34 4-35 4-36 4-37 4-38 4-39 4-40 4-41 FGLSPA062WRE0 ************* MLEVPA227WRF0 MLEVPA228WRF0 MLEVPA229WRF0 MSPRCA108WRE0 MSPRTA191WRE0 PHOK-A107WRF0 FDUC-A341WRY0 PSKR-A351WRP0 LBNDKA136WRP0 NFANJA029WRE0 PDUC-A697WRF0 FPLT-A007WRY0 PCUSGA504WRP0 PSKR-A348WRW0 GCOVHA404WRE0 LANGFA187WRP0 NSFTPA033WRF0 PCLICA032WRE0 PCLICA033WRE0 PCOVPA344WRF0 PCOVPA345WRF0 PCUSGA249WRP0 PCUSUA511WRP0 PCUSUA194WRP0 PCUSUA514WRP0 PDUC-A722WRF0 PFILWA060WRP0 PSHEPA644WRE0 PSKR-A347WRW0 PSKR-A349WRP0 PSKR-A359WRW0 PSPA-A112WRE0 PCUSGA378WRP0 PCUSUA507WRP0 PCUSUA517WRP0 PCUSUA518WRP0 PSHEPA673WRE0 PSHEPA674WRE0 PPACGA171WRE0 Ceramic shelf Oven cavity (Not a replaceable part) Latch switch lever A Latch switch lever B Latch switch lever C Latch lever spring Switch lever B spring Latch hook Steam duct sub assembly Steam guide HV capacitor holder Fan blade Fan duct Stirrer antenna assembly Insertion cushion Insertion plate A VCP cap Chassis support Antenna motor shaft Hand clip 4 Hand clip 5 Side splash cover Back splash cover Cushion Cushion Cushion Cushion Air intake duct Lamp filter Insertion sheet Insertion plate B Steam duct barrier Air guide Mica washer Cushion Cushion Cushion Cushion S/ film Cover Cushion DOOR PARTS ∆ ∆ 5- 1 5- 2 5- 3 5- 4 5-4-1 5-4-2 5-4-3 5- 5 5- 6 FDORFA322WRT0 PSHEPA649WRE0 FANGKA206WRY0 FCOV-A002WRK0 LSTPPA180WRF0 LSTPPA182WRF0 PGLSPA516WRE0 GWAKPA580WRM0 JHNDMA040WRW0 Door panel assembly Sealer film Latch angle assembly Door case assembly Glass stopper R Glass stopper U Front door glass Door handle Handle lever 5 R-21JC ∆ ∆ REF. NO. 5- 7 5- 8 5- 9 5-10 5-11 5-12 5-13 5-14 5-15 5-16 5-17 5-18 5-19 5-20 PART NO. LANGKA874WRW0 LSTPPA181WRF0 MSPRTA190WRE0 PCUSUA506WRP0 XCPSD40P06000 PSHEPA686WRE0 PSHEPA687WRE0 PCUSGA514WRP0 PCUSUA505WRP0 XCPSD40P08000 GCOVHA407WRF0 HBDGCA088WRE0 XEPSD40P25K00 PCUSUA508WRP0 DESCRIPTION Latch lever Latch head Latch spring Cushion Screw : 4mm x 6mm Panel sheet Panel sheet Cushion Cushion Screw : 4mm x 8mm Choke cover Door badge Screw : 4mm x 25mm Cushion Q'TY 1 2 1 1 1 2 1 1 1 10 1 1 2 1 CODE AR AL AD AC AA AK AK AK AC AA AM AG AB AC 1 1 1 1 1 1 1 1 1 AF BB AB AE AC AC AE AC AE 7 2 4 2 2 1 4 2 1 1 12 1 4 AA AA AA AA AB AB AA AA AA AA AA AA AA MISCELLANEOUS 666666666- 1 2 3 4 5 6 7 8 9 TINSEA802WRR0 FW-VZB684WRE0 TCAUAA166WRR0 TCAUAA241WRR0 TCAUAA243WRR0 TCAUAA245WRR0 TMAPCA759WRR0 LHLDWA013WRE0 TCAUAA249WRR0 Instruction book Main wire harness DHHS caution label Monitor caution Earth caution Cover caution Schematic diagram Purse lock LL Caution label SCREWS,NUTS AND WASHERS 7- 1 7- 2 7- 3 7- 4 7- 5 7- 6 7- 7 7- 8 7- 9 7-10 7-11 7-12 7-13 XHPSD40P08K00 XEPSD40P25000 LX-CZA038WRE0 LX-CZA052WRE0 LX-EZA042WRE0 XBPWW40P04000 XFPSD40P08000 XFTSD40P08000 XHPSD30P08000 XHTSD40P08RV0 XOTSD40P12000 XOTSF40P08000 XOTWW40P10000 Screw : Screw : Special Special Special Screw : Screw : Screw : Screw : Screw : Screw : Screw : Screw : 4mm x 4mm x screw screw screw 4mm x 4mm x 4mm x 3mm x 4mm x 4mm x 4mm x 4mm x 8mm 25mm 4mm 8mm 8mm 8mm 8mm 12mm 8mm 10mm HOW TO ORDER REPLACEMENT PARTS To have your order filled promptly and correctly, please furnish the following information. 1. MODEL NUMBER 2. REF. NO. 3. PART NO. 4. DESCRIPTION Order Parts from the authorized SHARP parts Distributor for your area. Defective parts requiring return should be returned as indicated in the Service Policy. 6 R-21JC 2 1 4 3 6 5 7-3 7-3 2-1 A OVEN AND CABINET PARTS A 7-3 1-10 1-9 4-28 7-13 7-3 6-6 4-9 B B 4-10 7-13 6-7 4-25 7-6 7-12 4-32 1-4 6-5 1-13 4-26 4-34 7-13 7-1 4-26 6-3 C 4-27 4-24 6-4 1-4 C 4-15 4-14 7-7 7-7 4-15 4-36 4-2 1-1 4-16 7-9 7-10 1-8 4-39 7-11 D 4-21 4-22 4-18 4-24 4-20 4-21 D 1-12 4-23 7-8 7-7 4-21 4-20 1-7 E 4-33 6-9 4-19 7-2 4-13 7-4 E 7-1 7-4 4-29 1-11 7-1 4-31 1-15 7-7 4-6 7-1 1-6 4-3 4-8 4-30 F 1-3 F 4-12 1-1 2-2 4-1 4-7 4-40 4-4 1-2 4-37 4-11 4-6 1-5 4-5 4-20 7-5 7-1 4-38 G G 4-35 7-11 1-14 2-4 4-24 2-4 H 4-17 7-11 x2 2-3 H 2-5 7-8 1 2 7-11 4 3 7 5 6 R-21JC 2 1 4 3 6 5 CONTROL PANEL PARTS 3-1 A A 3-5 3-2 B B 3-5 3-2-1 3-2-2 3-2-3 C C 3-3 DOOR PARTS 5-15 3-4 5-17 5-16 D D 5-14 5-2 5-12 5-16 5-20 5-16 5-4-2 5-16 E 5-13 x4 E 5-4 4-41 5-1 5-4-1 5-4-3 5-16 x2 5-16 5-12 F F 5-8 5-7 5-19 5-9 5-18 5-11 5-3 5-8 5-19 G G MISCELLANEOUS 5-6 5-5 6-2 6-8 5-10 H H Actual wire harness may be different from illustration. 1 2 4 3 8 5 6 R-21JC PACKING AND ACCESSORIES TOP PAD ASSEMBLY (FPADBA385WRK0) WRAP COVER (SSAKHA034WRE0) TRAY HOLDER DOOR PROTECTION SHEET (SPADFA435WRE0) (SPADPA204WRE0) 6-1 INSTRUCTION BOOK the avity Into en C v O BOTTOM PAD ASSEMBLY (FPADBA386WRK0) PACKING CASE Not Replaceable Items. SPAKCD238WRE0 9 R-21JC COPYRIGHT © 1999 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. '99 SHARP CORP. (1S2.530E) Printed in U.S.A 10