Sharp R-209BW Supplemental Service Manual Download Page 6

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R-209BW

TOUCH CONTROL PANEL

DEF.

LBS.

QTY. CHECK

Time display

Indicator

DEFROST

EXPRESS

MINUTE

PLUS

SNACKS

COOKING

REHEATING

POPCORN

BEVERAGE

BAKED

FRESH

POTATO

VEGETABLES

DINNER

PLATE

ROLL,

MUFFIN

POWER
TRANSFORMER

RECTIFIER

MAGNETRON

CAPACITOR
0.86

C/T FUSE

120V AC
60 Hz

OVEN
LAMP

TURN-
TABLE
MOTOR

FAN
MOTOR

MONITOR
SWITCH

SECONDARY
INTERLOCK
SWITCH

TTM

GRN

COM.

N.O.

DOOR
SENSING
SWITCH

(RY-1)

(RY-2)

CONTROL UNIT

PRIMARY
INTERLOCK
RELAY

MAGNETRON
THERMAL CUT-OUT

SCHEMATIC

NOTE: CONDITION OF OVEN

1. DOOR CLOSED

2. CLOCK APPEARS ON DISPLAY

Figure O-1. Oven Schematic-Off Condition

Summary of Contents for R-209BW

Page 1: ...con tain circuitry capable of producing very high voltage and current contact with 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 SHARP CORPORATION This document has been published to be used for after sales service only The contents are subject to change...

Page 2: ...nd 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...

Page 3: ...tor 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 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 t...

Page 4: ...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 Certaininitialpartsareintentionallynotgroundedandpresentariskofelectric...

Page 5: ... Power for Variable Cooking Repetition Rate P HI Full power throughout the cooking time P 90 approx 90 of FULL Power P 80 approx 80 of FULL Power P 70 approx 70 of FULL Power P 60 approx 60 of FULL Power P 50 approx 50 of FULL Power P 40 approx 40 of FULL Power P 30 approx 30 of FULL Power P 20 approx 20 of FULL Power P 10 approx 10 of FULL Power P 0 No power throughout the cooking time EXPRESS DE...

Page 6: ...N POWER TRANSFORMER RECTIFIER MAGNETRON CAPACITOR 0 86µF C T FUSE 120V AC 60 Hz OVEN LAMP TURN TABLE MOTOR FAN MOTOR MONITOR SWITCH SECONDARY INTERLOCK SWITCH TTM OL FM GRN A3 COM N O DOOR SENSING SWITCH B1 B2 RY 1 RY 2 CONTROL UNIT PRIMARY INTERLOCK RELAY MAGNETRON THERMAL CUT OUT A1 SCHEMATIC NOTE CONDITION OF OVEN 1 DOOR CLOSED 2 CLOCK APPEARS ON DISPLAY Figure O 1 Oven Schematic Off Condition ...

Page 7: ...stalled 8 Run the oven and check all functions TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 1 Disconnect the power supply cord and then remove outer case 2 Open the door and blocked it open 3 Discharge high voltage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 A...

Page 8: ...eshooting guide given below if indicator does not light up after above check and repairs are finished 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 these leads remain isolated from other components and oven chassis by using insulation tap...

Page 9: ...uzzer circuit and syn chronizing signal circuit 1 ACL This circuit generates a signal which resets the LSI to the initial state when power is supplied 2 Indicator Circuit This circuit consists of 4 digits 12 segments and 3 common electrodes using a Liquid Crystal Display TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL 3 Power Source Circuit This circuit generates voltage necessary in t...

Page 10: ...Model By using the A D converter contained in the LSI DC voltage in accordance with the Model in operation is applied to set up its function 14 P43 IN To input signal which communicates the door open close information to LSI Door close H level signal 0V Door open L level 5V 15 BZ OUT Signal to sound buzzer 2 0 kHz A key touch sound B Completion sound 16 R00 OUT Key strobe signal Signal applied to ...

Page 11: ...inal not used 32 33 SEG0 SEG1 OUT Terminal not used 34 SEG2 OUT Magnetron high voltage circuit driving signal To turn on and off the cook relay RY2 The signals holds L level during microwave cooking and H level while not cooking In other cooking modes variable cooking the signal turns to H level and L level in repetition according to the power level 35 SEG3 OUT Terminal not used 36 SEG4 OUT Oven l...

Page 12: ...5v R10 15k R50 20kF R20 15k R6 15k R5 1k HZ4C3 ZD1 C3 0 01µ 25v C40 0 01µ 25v C5 0 1µ 25v C6 0 1µ 25v C7 0 1µ 25v C4 S12 SEG19 VC3 B Z R00 R01 R02 R03 P20 P21 P22 P23 K00 K01 K02 K03 COM0 COM1 VC2 VC1 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 S11 S10 S 9 S 8 S 7 S 6 S 5 S 4 S 3 S 2 S 1 C 1 C 2 C 3 0 01µ 25v C11 0 01µ 25v SP1 PKM22EPT D20 J1 D21 RY2 AC120V 60Hz OVEN LAMP TURNTABLE MOTOR FAN MOTOR DOOR SE...

Page 13: ...th key unit and LCD 1 BA 3 2 1 FUNTKB008WREZ Key unit 1 AV 3 2 2 RLCDSA045DRE0 Liquid crystal display 1 AM 3 3 QCNC A012WRE0 Rubber connector 1 AF 3 4 XEPSD30P08XS0 Screw Control unit mtg 3 AA OVEN PARTS 4 1 PHOK A105WRF0 Latch hook 1 AL 4 2 LANGQA477WRW0 Light mount plate 1 AY 4 3 PCUSUA502WRP0 Waterproof cushion 1 AD 4 4 LBNDKA038WRP0 Capacitor holder 1 AF 4 5 NFANJA029WRE0 Fan blade 1 AL 4 6 PD...

Page 14: ... label 1 AB SCREWS AND WASHERS 7 1 XHPSD40P08K00 Screw 4mm x 8mm 5 AA 7 2 LX EZA042WRE0 Special screw 2 AB 7 3 LX WZA028WRE0 Special washer 1 AB 7 4 LX CZA078WRE0 Special screw 2 AC 7 5 XHTSD40P08RV0 Screw 4mm x 8mm 5 AA 7 6 XHPSD30P06000 Screw 3mm x 6mm 1 AA 7 7 LX CZ0052WRE0 Special screw 2 AA 7 8 XOTSD40P12000 Screw 4mm x 12mm 6 AA 7 9 XOTSE40P08000 Screw 4mm x 8mm 4 AA 7 10 LX CZA071WRE0 Speci...

Page 15: ...11 2 1 7 11 7 10 7 10 7 9 7 5 4 6 4 4 4 9 7 1 7 8 7 7 4 10 7 1 1 12 7 4 7 8 7 4 4 1 2 2 2 3 7 8 7 8 4 13 2 3 7 2 4 16 7 3 1 10 6 11 1 11 7 5 7 12 1 3 1 7 7 6 1 1 1 1 1 2 1 6 1 5 7 9 7 1 1 8 6 10 6 10 4 7 6 12 4 11 6 2 6 1 4 15 4 8 6 7 4 5 4 12 6 9 7 8 1 9 1 4 4 3 4 2 4 14 4 14 1 2 4 17 7 5 A A ...

Page 16: ...rol panel foil side of Control unit must be cleaned by ethyl alcohol 2000SHARP CORP 6S2 530E Printed in U S A COPYRIGHT 2000 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be repro duced stored in retrieval systems or trans mitted in any form or by any means elec tronic mechanical photocopying record ing or otherwise without prior written per mission of the publisher CONT...

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