R-2398G. Complete - Sharp Home Appliance Service Manual (repair manual)

In interests of user-safety the oven should be restored to its
original condition and only parts identical to those specified
should be used.

Page

SERVICING ................................................................................................................. INSIDE FRONT COVER
CAUTION, MICROWAVE RADIATION .............................................................................................................  1
WARNING .......................................................................................................................................................... 1
PRODUCT SPECIFICATIONS .........................................................................................................................  2
GENERAL INFORMATION ................................................................................................................................ 2
APPEARANCE VIEW .......................................................................................................................................  3
OPERATION SEQUENCE ................................................................................................................................  4
FUNCTION OF IMPORTANT COMPONENTS ................................................................................................   6
TROUBLESHOOTING GUIDE .......................................................................................................................... 8
TEST PROCEDURE .........................................................................................................................................  9
TOUCH CONTROL PANEL ASSEMBLY ........................................................................................................ 16
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ...........................................................  24
MICROWAVE MEASUREMENT ....................................................................................................................  31
WIRING DIAGRAM .........................................................................................................................................  32
PICTORIAL DIAGRAM ...................................................................................................................................  34
CONTROL PANEL CIRCUIT ........................................................................................................................... 35
PRINTED WIRING BOARD ............................................................................................................................. 36
PARTS LIST .................................................................................................................................................... 37

1500W/R-2398

1

2

3

4

5

6

7

8

9

0

11

12

13

14

15

16

17

18

19

20

EXPRESS
DEFROST

SELECT TIME

STOP / CLEAR

SELECT POWER 

START

SET

CHECK

SIGNAL

DOUBLE

QUANTITY

1

This Manual has been prepared to provide Sharp Corp. Service
engineers with Operation and Service Information.

It is recommended that service engineers carefully study the entire text
of this manual, so they will be qualified to render satisfactory customer
service.

CAUTION

MICROWAVE RADIATION

Service engineers should not be exposed to the microwave
energy which may radiate from the magnetron or other micro-
wave generating devices if it is improperly used or connected.
All input and output microwave connections, waveguides, flanges
and gaskets must be secured. Never operate the device without
a microwave energy absorbing load attached. Never look into
an open waveguide or antenna while the device is energized.

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 not any other visible damage with the oven.

Servicing and repair work must be carried out only by trained
service engineers.

All the parts marked "*" on parts list are used at voltages more than
250V.

Removal of the outer wrap gives access to potentials above 250V.

All the parts marked "

∆

" on parts list may cause undue microwave

exposure, by themselves, or when they are damaged, loosened or
removed.

PRODUCT SPECIFICATIONS

GENERAL INFORMATION

APPEARANCE VIEW

OPERATING SEQUENCE

FUNCTION OF IMPORTANT
COMPONENTS

SERVICING AND
TROUBLESHOOTING GUIDE

TEST PROCEDURE

TOUCH CONTROL PANEL

COMPONENT REPLACEMENT
AND ADJUSTMENT PROCEDURE

MICROWAVE MEASUREMENT

WIRING DIAGRAM

PARTS LIST

2

THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:

GREEN-AND-YELLOW

: EARTH

BLUE

: NEUTRAL

BROWN

: LIVE

Power Requirements

230 - 240 Volts
50 Hertz
Single phase, 3 wire earthed

Power Comsumption

2.35 kW Approx. 10 A

Power Output

1500 W nominal of RF microwave energy (measured by method of IEC Test
procedure) Operating frequency 2450 MHz

Case Dimensions

Width

Height

Depth

510mm

335 mm

470mm

Control Complement

Touch Control System

The combination of cooking time and microwave power
The oven can be programmed a series of up to 3 cookling stages.
The combination of microwave power and cooking time that can be input as
folllows.

Cooking Sequence  Micrwave power levelthat can be iused.  Cooking time that can be iused.

1 Stage only

0-100%

Max. 30 minutes

0-40% all stages

Max. 30 minutes any stages
Max. 60 minutes for 2 stages

2 or 3 Stage

Max. 90 minutes for 3 stages

50-100%

Max. 30 minutes for 3 stages

NOTE:If the oven used with the power level above 40% on any stage, the

maximum cooking time is 30 minutes in total.

Microwave Power level
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%

SELECT TIME key, NUMBER keys

SELECT POWER key, STOP / CLEAR key

START Key, DOUBLE QUANTITY key

EXPRESS DEFROST key, SET key

CHECK key, SIGNAL key

Set Weight

Approx. 35 kg