DOWNLOAD Sharp R-8740 (serv.man20) Service Manual ↓ Size: 941.24 KB | Pages: 40 in PDF or view online for FREE

Model
R-8740 (serv.man20)
Pages
40
Size
941.24 KB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Home Appliance / Microwave Oven
File
r-8740-sm20.pdf
Date

Sharp R-8740 (serv.man20) User Manual / Operation Manual ▷ View online

DEFROSTING CHARTS
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
31
FOOD
DEFROSTING
MICROWAVE
METHOD
TIME
POWER LEVEL
Bacon
9 - 10 minutes
10%
1. Place on a plate.
(uncooked)
450g (1lb)
2. Separate and re-arrange twice during
defrosting.
3. After defrosting, cover with aluminium foil 
and leave to stand for 5 - 10 minutes or until 
thoroughly defrosted.
Sausage
8 - 9 minutes
10%
1. Place on a large plate.
Rolls Large
for 8 rolls, 375g
2. Turn over and re-arrange half way through
(cooked)
(13oz) total weight
defrosting.
3. After defrosting, cover with aluminium foil 
and leave to stand for 10 - 15 minutes or until
thoroughly defrosted.
Quiche
11 - 12 minutes
10%
1. Place on a large plate.
(cooked)
400g (1lb)
2. After defrosting, cover with aluminium foil 
and leave to stand for 15 - 20 minutes or until
thoroughly defrosted.
Meat Pie
11 - 12 minutes
10%
1. Place on a large plate.
(cooked)
450g (1lb)
2. After defrosting, cover with aluminium foil 
and leave to stand for 15 - 20 minutes or until
thoroughly defrosted.
Fruit Pie
8 - 10 minutes
10%
1. Place on a large plate.
(cooked)
450g (1lb)
2. After defrosting, cover with aluminium foil 
and leave to stand for 15 - 20 minutes or until
thoroughly defrosted.
Sponge
4 - 5 minutes
30%
1. Place on a large plate.
Pudding
450g (1lb)
2. After defrosting, cover with aluminium foil 
(cooked)
and leave to stand for 15 - 20 minutes or until
thoroughly defrosted.
Bread
2 - 3 minutes
30%
1. Arrange slices on the turntable.
(Sliced)
400g (
1/2
loaf)
2. Turn over, separate and re-arrange 2 - 3  
times during defrosting. Remove defrosted 
slices each time.
3. After defrosting, cover with foil for 5 - 10
minutes or until thoroughly defrosted.
Bread Buns
2 - 3 minutes
30%
1. Place on the turntable.
for 6 buns
2. Turn over and re-arrange halfway through
defrosting.
3. After defrosting, cover with aluminium foil 
and leave to stand for 5 - 10 minutes or until
thoroughly defrosted.
R-8740M O/M  5/15/01  12:42 PM  Page 31
DEFROSTING CHARTS
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
32
FOOD
DEFROSTING
MICROWAVE
METHOD
TIME
POWER LEVEL
Whole Fish
9 minutes
30%
1. Place on plate. Turn over twice during
(Trout, Mackerel)
450g (1lb)
defrosting. Shield.
2. After defrosting, cover with foil and stand
for 15 minutes or until thoroughly defrosted.
Fish Fillets/
6 mins 30 secs
30%
1. Place on plate. Turn over twice and separate 
Steaks
450g (1lb)
during defrosting. Shield.
2. After defrosting, cover with foil and stand
for 15 minutes or until thoroughly defrosted.
Prawns
4 - 5 minutes
30%
Place in a dish. Stir during defrosting.
450g (1lb)
Rice
8 minutes
30%
1. Place in a large bowl.
(cooked)
450g (1lb)
2. Break up and stir 2 - 3 times during defrosting.
3. After defrosting, cover bowl with aluminium
foil and leave to stand for 5 - 10 minutes or
until thoroughly defrosted.
Pastry (puff
4 minutes
10%
1. Place on plate. Turn over halfway through
or shortcrust)
340g (12oz)
defrosting.
2. After defrosting, cover with foil and stand
for 15 - 20 minutes or until thoroughly
defrosted.
Apples
7 - 8 minutes
30%
Place in a flan dish. Stir during defrosting.
(sliced)
450g (1lb)
Blackcurrants/
7 - 8 minutes
30%
Place in a flan dish. Stir during defrosting.
Redcurrants
450g (1lb)
Gooseberries
6 - 7 minutes
30%
Place in a flan dish. Stir during defrosting.
450g (1lb)
Raspberries
5 - 6 minutes
30%
Place in a flan dish. Stir during defrosting.
Blackberries
450g (1lb)
Rhubarb
6 - 7 minutes
30%
Place in a flan dish. Stir during defrosting.
450g (1lb)
Strawberries
6 - 7 minutes
30%
Place in a dish. Stir during defrosting.
450g (1lb)
NOTES:
• Prior to defrosting, food is frozen approx - 18˚C.
• If it is necessary to shield small areas of food, use small pieces of foil.
• Only use food which is thoroughly defrosted, use a professional food thermometer to ensure acceptable
temperatures have been achieved throughout.
R-8740M O/M  5/15/01  12:42 PM  Page 32
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
33
CLEANING & MAINTENANCE
OVEN INTERIOR
Clean the microwave oven cavity after
each use with a mild detergent solution on
a soft cloth, pay special attention to the
waveguide cover.
Take care not to let soapy water drip through the
small holes in the oven walls and the cavity floor
particularly if the turntable and turntable support are
removed. Excess water spillage through these holes
will cause damage to the oven interior. It is
important that the door seals and sealing surfaces
are kept clean at all times, wipe regularly with a
damp cloth.
Remaining food or fat splashed on the oven interior
can cause smoke or a bad smell.
To prevent splashing, cover food wherever possible.
• Keep the waveguide cover clean at all times. 
If you leave grease or fat in the cavity, it may
overheat, smoke or even catch fire when 
next using the oven. Do not remove the
waveguide cover.
• Never use spray cleaners, oven pads or abrasive
scourers as these damage the surface of the oven.
• After Grill, Convection and Dual cooking modes,
the oven cavity, door, oven cabinet and turntable
will become very hot. Before cleaning, make sure
they have cooled down.
• Do not allow grease or dirt to build up on
the door seals and adjacent parts as
this may prevent the door from closing
correctly and may cause a leakage of
microwaves. To clean use a mild
detergent  solution on a soft damp cloth.
OUTER CABINET
Wipe the outside cabinet with a mild detergent
solution on a soft cloth. The control panel must be
wiped clean whilst the door is open, therefore
deactivating the oven.
TURNTABLE
Ensure the turntable is cleaned after every use with
a mild washing-up liquid solution and dried. The
turntable is dishwasher safe. This should prevent a
build up of grease and food debris.
WARNINGS: 
R-8740M O/M  5/15/01  12:42 PM  Page 33
TROUBLESHOOTING
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
34
If you think the oven is not working properly there are
some simple checks you can carry out yourself before
calling an engineer. This will help prevent unnecessary
service calls if the fault is something simple.
Simply answer “YES” or “NO” to the following questions:
1. Does the oven lamp come on when you open the
door? 
YES/NO
(Put half a cup of water in the oven, on the turntable
and close the door. 100% and programme the oven to
cook for 1 minute.)
2. Does the oven lamp come on?
YES/NO
3. Does the turntable rotate?
YES/NO
4. Does the cooling fan work? (Check by placing your
hand above the air-vent openings)
YES/NO
5. After 1 minute does the "beep" sound? YES/NO
6. Is the water in the cup hot?
YES/NO
(Take the cup out of the oven and close the door. Set the
grill time for the top and bottom grill for 3 minutes.)
7. At the end of 3 minutes do both the grill elements
become red?
YES/NO
If you answer “NO” to any question first check that the
oven is plugged in properly and the fuse has not blown,
if there is no fault with either, check the troubleshooting
chart on page 35.
WARNINGS:
• It is hazardous for anyone other than a
competent person to carry out any
service or repair operation which
involves the removal of a cover which
gives protection against exposure to
microwave energy.
• The door seal stops microwave leakage during oven
operation, but does not form an airtight seal. It is
normal to see drops of water, light or feel warm air
around the oven door. Food with a high moisture
content will release steam and cause condensation
inside the door which may drip from the oven.
• Repairs & Modifications: Do not attempt to operate
the oven if it is not working properly. 
• Outer Cabinet & Lamp Access:  Never remove the
outer cabinet. This would be very dangerous due to
high voltage parts inside which must never be
touched, as this could be fatal. As your oven is not
fitted with a lamp access cover, if the lamp fails, do
not attempt to replace the lamp yourself, call your
dealer or SHARP approved service facility (see page
36). 
NOTES: The following cooking conditions should not cause concern:
1. If you cook food for more than the standard time (see chart below) at the same power level, the oven’s
safety mechanisms will automatically activate. The microwave power level will be reduced and the grill
heating elements will turn on and off.
2. After cooking the cooling fan may switch on for cooling the oven cavity. When the cooling fan works,
may be displayed.
During cooking, the cooling fan will also work when you press the STOP key. You may feel air blowing
out of the air-vent openings.
COOKING MODE
Microwave 100% cooking
Grill cooking
TOP GRILL
BOTTOM GRILL
TOP and BOTTOM GRILL
Dual
+
Microwave 100% cooking
MICRO and 
TOP GRILL
Microwave 10 - 70% cooking
Dual
+
Microwave 100% cooking
MICRO and
BOTTOM GRILL
Microwave 10 - 70% cooking
STANDARD TIME
20 minutes
30 minutes
45 minutes
Top grill - 15 minutes
Bottom grill - 15 minutes
Micro - 20 minutes
Top grill - 15 minutes
Top grill - 30 minutes
Micro - 20 minutes
Bottom grill - 15 minutes
Bottom grill - 45 minutes
R-8740M O/M  5/15/01  12:42 PM  Page 34
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