Sharp Carousel R-1871 Service Manual Supplement - Page 11
Browse online or download pdf Service Manual Supplement for Microwave Oven Sharp Carousel R-1871. Sharp Carousel R-1871 24 pages. Over-the-range microwave oven/hood system
Also for Sharp Carousel R-1871: Operation Manual (32 pages), Brochure & Specs (8 pages), Installation Manual (9 pages), Installation Instructions Manual (8 pages)
Print Page
PROCEDURE
LETTER
Note: When defective components, the Control Unit or Key Unit are replaced, the defective part or parts
must be properly packed for return in the shipping carton, with its cushion material, in which the
new replacement part was shipped to you.
R
KEY UNIT TEST
If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon is making
good contact, verify that the door sensing switch (stop switch) operates properly; that is the contacts are
closed when the door is closed and open when the door is open. If the door sensing (stop switch) is good,
disconnect the flat ribbon that connects the key unit to the control unit and make sure the door sensing
switch is closed (either close the door or short the stop switch connecter). Use the key unit matrix
indicated on the control panel schematic and place a jumper wire between the pins that correspond to
the STOP/CLEAR pad making momentary contact. If the control unit responds by clearing with a beep,
the key unit is faulty and must be replaced.
If the control unit does not respond, it is
faulty and must be replaced. If a specific
pad does not respond, the above method
may be used ( after clearing the control unit)
to determine if the control unit or key pad is
at fault.
COMPONENT TEST
G 1
G 2
CUSTOM
SENSOR
G 8
HELP
REHEAT
G 9
CONVEC
PREHEAT
SLOW
G10
BROIL
COOK
KITCHEN
G11
CLOCK
TIMER
TURNTABLE
POWER
G12
ON / OFF
LEVEL
9
G 3
G 4
G 5
G 6
MINUTE
COMPU
SENSOR
POPCORN
PLUS
DEFROST
COOK
LOW MIX
HIGH MIX
COMPU
ROAST
BAKE
ROAST
1
2
3
4
100 F
150 F
275 F
300 F
6
7
8
9
350 F
375 F
400 F
425 F
STOP
START
KEEP
FAN
WARM
CLEAR
TOUCH ON
R - 1 8 7 0
R - 1 8 7 1
G 7
COMPU
BROIL
COMPU
BAKE
5
325 F
0
450 F
LIGHT