Sharp R-308HK Service Manual Download Page 7

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R-308HK
R-308HW

NOTE:
Some one-touch cooking features such as "MINUTE PLUS" are dis-
abled after three minutes when the oven is not in use. These features
are automatically enabled when the door is opened and closed or the
STOP/ CLEAR pad is pressed.

TOUCH CONTROL PANEL

Figure O-1. Oven Schematic-Off Condition

SCHEMATIC

NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. CLOCK APPEARS ON DISPLAY

NOTE: " " indicates components with potential above 250V.

120V AC
60 Hz

OVEN
LAMP

OVEN LAMP
RELAY

TURN-
TABLE
MOTOR

FAN
MOTOR

POWER
TRANSFORMER

MONITOR

SWITCH

RECTIFIER

MAGNETRON

SECONDARY
INTERLOCK
SWITCH

TTM

C/T FUSE

TEMPERATURE
FUSE 150˚C (OVEN)

N.O.

COM.

DOOR
SENSING
SWITCH

(RY1)

(RY2)

CONTROL UNIT

PRIMARY
INTERLOCK
RELAY

GRN

CAPACITOR
0.94

AC 2200V

Summary of Contents for R-308HK

Page 1: ...age Recti fier Assembly High Voltage Harness etc R 308HK R 308HW MODELS 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 MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING 3 PRODUCT SPECIFICATION 4 TOUCH CONTROL PANEL 5 OVEN...

Page 2: ... 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 Microwa...

Page 3: ...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 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 Recon...

Page 4: ...ty The water container shall be a low form of 600 ml 20 oz beaker with an inside diameter of approx 8 5 cm 3 1 2 in and made of an electrically nonconductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven but also to insure that any leakage is measured accurately 4 Set the cooking control on Full Power Cooking Mode 5 Close ...

Page 5: ...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 ...

Page 6: ...le 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 POPCORN pad MINUTE PLUS pad...

Page 7: ...re O 1 Oven Schematic Off Condition SCHEMATIC NOTE CONDITION OF OVEN 1 DOOR CLOSED 2 CLOCK APPEARS ON DISPLAY NOTE indicates components with potential above 250V 120V AC 60 Hz OVEN LAMP OVEN LAMP RELAY TURN TABLE MOTOR FAN MOTOR POWER TRANSFORMER MONITOR SWITCH RECTIFIER MAGNETRON SECONDARY INTERLOCK SWITCH TTM OL FM C T FUSE TEMPERATURE FUSE 150 C OVEN N O N O COM COM DOOR SENSING SWITCH RY1 RY2 ...

Page 8: ...ll the air duct to the oven cavity top plate and the magnetron with two 2 screws 3 Insert the end of the chassis support into the hole of the oven cavity front flange 4 Holdtheotherendofthechassissupporttothemagnetron with the one 1 screw 5 Reconnect the wire leads to the magnetron Refer to PICTORIAL DIAGRAM 6 Reinstall outer case and check that the oven is operating properly CAUTION WHEN REPLACIN...

Page 9: ... BF 2 1 GCABUA889WRPZ Outer case cabinet R 308HK 1 BF 2 2 FDAI A265WRYZ Bottom plate 1 AW 2 3 GLEGPA074WRE0 Foot 4 AC CONTROL PANEL PARTS 3 1 CPWBFA858WRKZ Control unit assembly 1 BQ 3 2 HPNLCB804WRFZ Control panel frame R 308HW 1 AS 3 2 HPNLCB805WRFZ Control panel frame R 308HK 1 AS 3 3 PSHEPA913WRZZ Graphic sheet R 308HW 1 AW 3 3 PSHEPA924WRZZ Graphic sheet R 308HK 1 AW 3 4 XOTSD40P08000 Screw 4...

Page 10: ...3 LX CZA073WRE0 Special screw 2 AC 7 4 LX CZ0052WRE0 Special screw 2 AA 7 5 LX EZA042WRE0 Special screw 2 AB 7 6 XHPSD30P06000 Screw 3mm x 6mm 1 AA 7 7 XHPSD40P08000 Screw 4mm x 8mm 5 AA 7 8 XHTSD40P08RV0 Screw 4mm x 8mm 4 AA 7 9 XHTSD40P12RV0 Screw 4mm x 12mm 1 AA 7 10 XOTSD40P08000 Screw 4mm x 8mm 14 AA 7 11 XOTSE40P08000 Screw 4mm x 8mm R 308HW 1 AA 7 11 XOTSF40P08000 Screw 4mm x 8mm R 308HK 1 ...

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

Page 12: ...1 2 3 A B C D E F G H A B C D E F G H 2003 SHARP CORP 2S1 700E Printed in U S A DOOR PARTS CONTROL PANEL PARTS MISCELLANEOUS 3 2 3 1 3 6 3 5 3 4 3 3 Actual wire harness may be different from illustration 6 3 5 1 5 3 5 2 3 4 5 4 5 5 5 7 5 6 ...

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