Sharp R-895(AL)M User manual

R-895M - 1
TABLE OF CONTENTS
Page
CAUTION, MICROWAVE RADIATION.................................................................................................... 2
WARNING................................................................................................................................................. 2
SERVICING ............................................................................................................................................. 3
PRODUCT SPECIFICATIONS ................................................................................................................. 4
GENERAL INFORMATION....................................................................................................................... 4
APPEARANCE VIEW .............................................................................................................................. 5
OPERATION SEQUENCE........................................................................................................................ 6
FUNCTION OF IMPORTANT COMPONENTS ....................................................................................... 9
TROUBLESHOOTING GUIDE ............................................................................................................... 12
TEST PROCEDURES ........................................................................................................................... 13
TOUCH CONTROL PANEL ASSEMBLY .............................................................................................. 19
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................. 24
MICROWAVE MEASUREMENT ........................................................................................................... 30
SCHEMATIC DIAGRAMS...................................................................................................................... 31
PICTORIAL DIAGRAM .......................................................................................................................... 35
POWER UNIT CIRCUIT DIAGRAM........................................................................................................ 36
CPU UNIT CIRCUIT DIAGRAM.............................................................................................................. 37
PRINTED WIRING BOARD OF POWER UNIT DIAGRAM .................................................................... 38
PARTS LIST .......................................................................................................................................... 39
EXPLODED DIAGRAM OF OVEN PARTS ........................................................................................... 41
CONTROL PANEL & DOOR PARTS .....................................................................................................42
MISCELLANEOUS/PACKING & ACCESSORIES .................................................................................. 43
S70224R895M//
MICROWAVE OVEN WITH
GRILL AND CONVECTION
MODEL R-895(AL)M
In interests of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
SERVICE MANUAL
SHARP CORPORATION
®

R-895M - 41
OVEN PARTS
7-6
7-18
7-11
7-16
7-8
7-18
7-7
x7
x2
1-18
4-25
4-14
4-26
4-30
4-32
4-27
4-32
4-19
7-12
7-13
7-9
4-3
1-8
4-21
4-24
7-18
7-18
7-18
7-18
4-28
7-4
2-3
7-4
7-15
7-15
4-18
7-18
7-17
7-7
4-1
4-5
1-11
7-18
4-18
4-6
4-4
7-18
1-1 7-7
7-6
1-3
7-6
7-18
6-5
1-3
7-6
1-2
1-20
1-16
1-14
1-15
7-17
7-18
7-18
7-10
7-17
4-7
7-6
6-3
6-5
7-14
7-1
1-10 4-16
1-7
1-17
4-13
4-12
1-4
7-6
7-19
4-29
4-20
7-18
7-18
2-4
2-5
2-5
4-9
4-31
7-3
1-19
4-2
4-15
7-5 7-2
7-2
1-21
7-5
4-10
4-22
4-17
4-11
4-8
6-4
4-23
1-9
1-6
1-5
1-12
6-6
2-2
2-1
1-13
7-5
NOTE: In the event of removing the turn-
table motor cover this part should
be refitted using screw connec-
tion: LX-EZA045WRE0 (7-20)
OVEN PARTS

R-895M - 42
CONTROL PANEL PARTS
DOOR PARTS
CONTROL PANEL AND DOOR PARTS
3-4
3-2 3-7
3-7
3-7
3-5
3-6
3-1
3-3
5-4
5-6
5-7
5-8
5-3
5-12
5-11
5-1
5-9
5-9
5-10
5-2
5-5
5-10

R-895M - 43
'2002 SHARP CORP. Printed in U.K.
PACKING AND ACCESSORIES
®
TURNTABLE TRAY
PRINTED MATTER
ACCESSORY HOLDER
(SPADPA015URE1)
TOP PAD ASSEMBLY
(FPADBA018URK0)
BOTTOM PAD ASSEMBLY
(FPADBA019URK0)
WRAP COVER
(SPADFA353WRE0)
DOOR PROTECTION SHEET

(SPADPA026URE0)
PACKING CASE
SPAKCA437URR0
Not Replaceable Items.
PROTECTION SHEET
(SPADPA024URE0)
BOX MODEL LABEL
TLAB-A310URR0
INTO THE
OVEN CAVITY
LOW RACK
HIGH RACK
COPYRIGHT © 2002 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.
MISCELLANEOUS
Actual wire harness may be different than illustration.
6-5
6-1
6-8
6-2
6-7
MISCELLANEOUS / PACKING & ACCESSORIES

R-895M - 39
Note: The parts marked "∆" may cause undue microwave exposure. / The parts marked "*" are used in
voltage more than 250V. / "§" Mark: Spare parts delivery section
REF. NO. PART NO. § DESCRIPTION Q'TY CODE
PARTS LIST
*
*
*
∆*
ELECTRIC PARTS
1- 1 FH-HZA075WRE0 U Thermistor 1 AN
1- 2 RTRN-A529WRE0 U TC transformer 1 AV
1- 3 QACCBA004URE3 U Power supply cord 1 AT
1- 4 FH-DZA035WRE0 U High voltage rectifier assembly 1 AP
1- 5 FPWBFA309WRE2 U Noise filter 1 AT
1- 6 QFS-CA025WRE0 U Fuse F8A 1 AC
1- 7 QFS-BA009WRE0 U Fuse 20A 1 AC
1- 8 RMOTEA373WRE0 U Convection motor 1 AV
1- 9 RC-QZA240WRE0 U High voltage capacitor 1 AR
1-10 RTHM-A098WRE0 U Thermal cut-out 125˚C off(MG) 1 AH
1-11 RTHM-A124WRZZ U Thermal cut-out 145˚C off 115˚C on (OVEN) 1 AH
1-12 RHET-A255WRZZ U Top grill heating element 1 AT
1-13 RHET-A248WRZ1 U Bottom grill heating element 1 AW
1-14 QSW-MA146WRZZ J Monitored latch switch 1 AC
1-15 QSW-MA147WRZZ J Stop switch 1 AG
1-16 QSW-MA146WRZZ J Monitor switch 1 AC
1-17 RMOTEA002URE1 U Fan motor 1 AW
1-18 RLMPTA066WRE0 U Oven lamp 1 AK
1-19 RTRN-A019URE0 U High voltage transformer 1 BF
1-20 RV-MZA243WRE1 U Magnetron 1 BH
1-21 RMOTDA227WRE0 U Turntable motor 1 AU
CABINET PARTS
2- 1 GCABDA001URP2 U Back plate 1 AQ
2- 2 GCABDA002URP0 U Sub back plate 1 AH
2- 3 GCABUW045URP0 U Outer case cabinet 1 AW
2- 4 GDAI-A002URP0 U Base plate 1 AR
2- 5 GLEGPA057WRE1 U Foot 2 AB
CONTROL PANEL PARTS
3- 1 DPWBFA184URK0 U Power unit 1 BC
3- 1A QCNCMA453DRE0 U 5-pin connector (CN-A) 1 AC
3- 1B QCNCMA414DRE0 U 2-pin connector (CN-B) 1 AB
3- 1C QCNCMA410DRE0 U 2-pin connector (CN-C) 1 AB
3- 1D QCNCMA230DRE0 U 4-pin connector (CN-E) 1 AC
3- 1E FW-VZA266DREZ U 15pin wire harness (WH-1) 1 AH
C1 RC-KZA087DRE0 U Capacitor 0.1 uF 50V 1 AB
C2 VCEAG31VW108M U Capacitor 1000 uF 35V 1 AE
C3 RC-KZA087DRE0 U Capacitor 0.1 uF 50V 1 AB
C4-5 VCEAG31VW106M U Capacitor 10 uF 35V 2 AB
D1-7 VHD1SS270A/-1 U Diode (1SS270A) 7 AA
D11-14 VHD1N4005E/-2 U Diode (1N4005E) 4 AA
D11-14 VHD1N4004S/-1T U Diode (1N4004S) (Interchangeable) 4 AA
Q2 VSKTA1274//-3 U Transistor (KTA1274) 1 AA
Q3 VSKRC243M//-3 U Transistor (KRC243M) 1 AB
R2 VRD-B12EF152J U Resistor 1.5K ohm 1/4W 1 AA
R3-4 VRS-B13AA511J U Resistor 510 ohm 1W 2 AB
R5 VRD-B12EF332J U Resistor 3.3K ohm 1/4W 1 AA
R6 VRS-B13AA201J U Resistor 200 ohm 1W 1 AB
RY1 RRLY-A117DRE0 U Relay (DU18D1-1P(M)-R) 1 AG
RY2 RRLY-A122DRE0 U Relay (DU18D1-1P(M)-R-S) 1 AG
RY3-4 RRLY-A113DRE0 U Relay (DU24D1-1P(M)-R) 2 AG
RY5-7 RRLY-B004MRE0 U Relay (FTR-F3AA024E) 3 AL
SP1 RALM-A014DRE0 U Buzzer (PKM22EPT) 1 AG
VRS1 RH-VZA034DRE0 U Varistor (10G471K) 1 AD
ZD2 VHEHZ201///-1 U Zener diode (HZ20-1) 1 AB
3- 2 DPWBFC239WRKZ U CPU unit 1 BC
3- 3 FUNTKC135URE0 U Key unit 1 AS
3- 4 HPNLCA123URR0 U Control panel frame 1 AV
3- 5 LHLD-A007URF1 U LCD holder 1 AD
3- 6 PSHEPA647WRE0 U LCD sheet 1 AL
3- 7 XEPSD30P10XS0 U Screw : 3mm x 10mm 6 AA
OVEN PARTS
4- 1 DOVN-A023URK0 U Oven cavity 1 BG
4- 2 LBNDKA107WRP1 U Capacitor holder 1 AD
4- 3 FDUC-A003URY0 U Air duct assembly 1 AL
4- 4 LANGQA005URP0 U Air separate angle B 1 AC
4- 5 PDUC-A636WRP1 U Air guide duct 1 AM
4- 6 PFILWA001URP0 U Lamp filter 1 AB
4- 7 PHOK-A002URF1 U Latch hook 1 AH
4- 8 LANGQA014URP0 U Turntable motor angle 1 AE
4- 9 PCUSUA019URE0 U Cushion 1 AA
4-10 FANGTA003URY0 U Turntable motor shaft assembly 1 AL
4-11 PPACGA002URE0 U Seal packing 1 AB
4-12 NFANJA038WRE0 U Fan blade 1 AF
∆
∆

R-895M - 40
*
∆
∆
∆
REF. NO. PART NO. § DESCRIPTION Q'TY CODE
Note: The parts marked "∆" may cause undue microwave exposure. / The parts marked "*" are used in
voltage more than 250V. / "§" Mark: Spare parts delivery section
PARTS LIST
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
4-13 PDUC-A637WRF2 U Fan duct 1 AL
4-14 NFANMA002URP0 U Cooling fan 1 AF
4-15 GCOVHA001URP1 U Bottom heater cover 1 AM
4-16 LANGFA155WRP7 U Chassis support 1 AF
4-17 PPACGA001URE0 U Heater packing 1 AD
4-18 LANGQA008URP0 U Grill heater angle 2 AD
4-19 NFANMA001URP0 U Convection fan 1 AD
4-20 PSPAGA001WRE0 U Vibration proof cushion 1 AA
4-21 PCUSUA006URE0 U Air cushion B 1 AA
4-22 PCOVQA002URP0 U Heater cover 1 AD
4-23 PCOVPA308WRE1 U Waveguide cover 1 AE
4-24 PCUSUA015URE0 U Back plate cushion 1 AB
4-25 PPIP-A001UR10 U Pipe 1 AE
4-26 PCOVQA001URP0 U Rear heat cover 1 AP
4-27 PDUC-A606WRF1 U Air intake duct 1 AK
4-28 PDUC-A008URP0 U Exhaust duct 1 AK
4-29 PSKR-A308WRF0 U Rear barrier 1 AH
4-30 PDUC-A003URP0 U Convection duct 1 AL
4-31 PCUSUA012URE0 U Air defect cushion 1 AB
4-32 LANGQA004URP0 U Convection air angle 2 AN
DOOR PARTS
5- 1 DDORFA766WRK0 U Door panel assembly 1 BE
5- 2 GWAKPA103URR0 U Door frame 1 AU
5- 3 LSTPPA017URF0 U Latch head 1 AG
5- 4 LHLD-A012URF0 U Glass holder 1 AB
5- 5 MSPRTA197WREZ U Latch spring 1 AC
5- 6 PGLSPA027URE0 U Front door glass 1 AN
5- 7 JHNDPA012URT0 U Door handle A 1 AK
5- 8 JHNDPA013URT0 U Door handle B 1 AR
5- 9 XETSD40P30000 U Screw : 4mm x 30mm 2 AA
5-10 XEBSD30P08000 U Screw : 3mm x 8mm 3 AA
5-11 XEBSD30P06000 U Screw : 3mm x 6mm 4 AA
5-12 GCOVHA365WRF3 U Choke cover 1 AM
MISCELLANEOUS
6- 1 FAMI-A072WRK2 U High rack 1 AT
6- 2 FAMI-A095WRK1 U Low rack 1 AR
6- 3 LHLDKA008WRF1 U P-clip 1 AA
6- 4 CTNT-A005URK0 U Turntable tray 1 AY
6- 5 FW-VZA061URE1 U Stop switch harness 1 AE
6- 6 TCAUHA001WRR1 U Caution label 1 AC
6- 7 QW-QZA210WRE1 U High voltage wire B 1 AD
6- 8 FW-VZA098URE0 U Main harness 1 AX
6- 9 TINS-A286URR0 U Quick start guide 1 AD
6-10 TINS-A285URR0 U Operation manual 1 AS
SCREWS,NUTS AND WASHERS
7- 1 XHPSD40P08K00 U Screw: 4mm x 8mm 1 AA
7- 2 LX-NZ0061WRE0 J M4 Flange nut 4 AA
7- 3 XWWSD50-06000 J Washer: 5mm x 0.6mm 1 AA
7- 4 XOTSE40P10000 J Screw: 4mm x 10mm 4 AA
7- 5 XHPSD40P06000 J Screw: 4mm x 6mm 3 AA
7- 6 XHTSD40P08RV0 J Screw: 4mm x 8mm 6 AA
7- 7 XOTWW40P06000 J Screw: 4mm x 6mm 10 AA
7- 8 XBTSD40P05000 U Screw: 4mm x 5mm 2 AA
7- 9 XNEUW40-32000 J Nut: 4mm x 3.2mm 1 AA
7-10 XOTSD40P12RV0 J Screw: 4mm x 12mm 2 AA
7-11 XRESE40-06000 U Ring 1 AA
7-12 XWHUW40-08000 U Washer: 4mm x 0.8mm 1 AA
7-13 XWSUW40-10000 U Washer: 4mm x 1.0mm 1 AA
7-14 XEPSD40P25000 J Screw: 4mm x 25mm 2 AA
7-15 XBPWW30P05K00 J Screw: 3mm x 5mm 2 AA
7-16 XWHUW50-08000 J Washer: 5mm x 0.8mm 1 AA
7-17 XEBSD30P06000 U Screw: 3mm x 6mm 3 AA
7-18 LX-CZA001URE0 U Special screw 24 AA
7-19 XFPSD50P10KS0 U Screw: 5mm x 10mm 2 AB
7-20 LX-EZA045WRE0 J Special screw (TTM cover mounting screw) 1 AA

R-895M - 2
SERVICE MANUAL
MICROWAVE OVEN WITH
GRILL AND CONVECTION
R-895(AL)M
GENERAL IMPORTANT INFORMATION
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.
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.
Never operate the Grill and/ or Bottom heater with the oven
outer cabinet removed. (Because air flow is eliminated, and the
excess heat generated on adjacent components). It can cause
permanent damage or a fire.
SHARP CORPORATION
OSAKA, JAPAN
WARNING
MICROWAVE RADIATION
Personnel should not be exposed to the microwave energy
which may radiate from the magnetron or other microwave
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.
®

R-895M - 3
REMEMBER TO CHECK 3D
1) Disconnect the supply.
2) Door opened, and wedged open.
3) Discharge high voltage capacitor.
WARNING: AGAINST THE CHARGE OF THE HIGH-
VOLTAGE CAPACITOR
The high-voltage capacitor remains charged about 60 sec-
onds after the oven has been switched off. Wait for 60
seconds and then short-circuit the connection of the high-
voltage capacitor (that is, of the connecting lead of the high-
voltage rectifier) against the chassis with the use of an
insulated screwdriver.
Sharp recommend that wherever possible fault-finding is
carried out with the supply disconnected. It may in, some
cases, be necessary to connect the supply after the outer
case has been removed, in this event carry out 3D checks and
then disconnect the leads to the primary of the High voltage
transformer. Ensure that these leads remain isolated from
other components and the oven chassis. (Use insulation tape
if necessary.) When the testing is completed carry out 3D
checks and reconnect the leads to the primary of the High
voltage transformer.
SERVICING
WARNING TO SERVICE PERSONNEL
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts will
result in electrocution.
High voltage capacitor, High voltage transformer, Magnetron, High voltage rectifier assembly, High voltage harness.
REMEMBER TO CHECK 4R
1) Reconnect all leads removed from components during
testing.
2) Replace the outer case (cabinet).
3) Reconnect the supply.
4) Run the oven. Check all functions.
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 3D checks and re-examine the connections to the compo-
nent 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.

R-895M - 4
PRODUCT DESCRIPTION
SPECIFICATION
ITEM DESCRIPTION
Power Requirements 230 - 240 Volts / 50 Hertz / Single phase, 3 wire earthed
Power Consumption Microwave cooking 1.50 kW Approx. 6.5 A
Convection cooking 1.91 kW Approx. 8.0 A
Top Grill mode ...................... 1.25 kW Approx. 5.2 A
Grill cooking Bottom Grill mode ................. 0.70 kW Approx. 2.9 A
Top and Bottom mode ......... 1.90 kW Approx. 7.9 A
Micro and Top Grill ............... 2.70 kW Approx. 11.5 A
Dual cooking Micro and Bottom Grill .......... 2.15 kW Approx. 9.2 A
Micro and Convection ........... 2.16 kW Approx. 9.3 A
Power Output 900 W nominal of RF microwave energy (measured by method of IEC 60705)
Operating fequency 2450 MHz
Top Grill heating element Power Output 1200 W
Bottom heating element Power Output 650 W
Case Dimensions Width 520 mm Height 309 mm (including foot) Depth 482 mm
Cooking Cavity Dimensions Width 353 mm Height 207 mm Depth 357 mm
Turntable diameter 325 mm
Control Complement Touch Control System
Clock (1:00 - 12:59) / Timer (0 - 99 minutes 90 sec.)
Microwave Power for Variable Cooking
Repetition Rate;
100 (HIGH) ....................... Full power throughout the cooking time
70 (MEDIUM HIGH) ......................... approx. 70% of FULL Power
50 (MEDIUM) ................................... approx. 50% of FULL Power
30 (MEDIUM LOW).......................... approx. 30% of FULL Power
10 (LOW) ......................................... approx. 10% of FULL Power
Convection temperature control range:
250˚C, 230˚C, 220˚C, 200˚C, 180˚C, 160˚C, 130˚C, 100˚C, 70˚C and 40˚C
TIME keys, BREAKFAST key, PIZZA key, EXPRESS COOK keys
EXPRESS DEFROST keys, MEAL IN ONE keys
POWER LEVEL key, GRILL key, DUAL CONV./GRILL key
CONV. (˚C) key, LESS/MORE keys, WEIGHT keys
INFO key, STOP/CLEAR key, START/AUTO MINUTE key
KITCHEN TIMER/CLOCK SET key
Net Weight Approx. 19 kg
GENERAL INFORMATION
WARNING
THIS APPLIANCE MUST BE EARTHED
IMPORTANT
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:
GREEN-AND-YELLOW : EARTH
BLUE : NEUTRAL
BROWN : LIVE
As part of our policy of continuous improvement, we reserve the right to
alter design and specifications without notice

R-895M - 5
APPEARANCE VIEW
OVEN
1. Control panel
2. Oven lamp
3. Waveguide cover
4. Bottom grill heating ele-
ment (Bottom Grill)
5. Turntable motor shaft
6. Oven cavity
7. Door seals and sealing
surfaces
8. Door latches
9. Door opening handle
10.Top grill heating element
(Top Grill)
11.Ventilation openings
12.Outer cabinet
13.Powercord
14.Turntable tray
15.High rack
16.Low rack
CONTROL PANEL
14
1
2
9
3678 5 4
10 11
13
12
16 15
KG
COOK
DEFROST AUTO
%
nfo
AUTO indicator
DEFROST indicator
TOP GRILL indicator.
BOTTOM GRILL indicator
CONVECTION indicator.
COOK indicator
MICROWAVE indicator.
WEIGHT indicators.
LESS/MORE indicators.
DIGITAL DISPLAY
INFO indicator
MICROWAVE POWER 
LEVEL indicator.
DIGITAL DISPLAY
TIME keys
PIZZA key
EXPRESS COOK keys
EXPRESS DEFROST keys
MEAL IN ONE keys
LESS/MORE keys
INFO key
START AUTO MINUTE key
DUAL CONV./GRILL key
CONV. (˚C) key
BREAKFAST key
POWER LEVEL key
WEIGHT keys
KITCHEN TIMER/CLOCK SET key
STOP/CLEAR key
GRILL key

NOTE: If the clock has been set, some one-touch cooking features such as "AUTO MINUTE" are disabled after three
minutes when the oven is not used. These features are automatically enabled when the door is opened and closed
or the STOP/CLEAR key is pressed.