Sharp R-cd1800m Service Manual

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[3] DESCRIPTION AND FUNCTION OF COMPONENTS
1. DOOR OPEN MECHANISM
1. The handle lever is pulled.
2. The upper and lower latch heads are lifted up by the linked latch
lever.
3. The latch lever is lifted up by the handle lever.
4. Now both latch heads are lifted up, so they can be released from
the latch hook.
5. Now the door can be opened.
Figure D-1. Door Open Mechanism
2. DOOR SENSING SWITCH
The door sensing switch is activated by the latch head of the door and
switch lever C. When the...

RCD2200M
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During cooking, they operate. After cooking, they will operate at least
for 1 minute and the maximum operating time is 4 minutes. When the
temperature of the magnetron thermistor becomes bellow 110°C, the
fan motors will stop. These two (2) fan motors are D.C. motors.
11. EXHAUST MOTOR
The exhaust motor is located on the side of the exhaust duct assem-
bly. This motor drives a blade in the exhaust duct assembly. The
driven blade draws the external cool air into the oven from the intake...

RCD2200M
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RCD2200M

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RCD2200M
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Home fuse blows when power cord is plugged into wall
receptacle
It seems that the output power is lower or higher than
the rated one. Monitor fuse blows when power cord is plugged into wall
receptacle.
" . " does not appear in display when power cord is first
plugged into wall receptacle.
Oven lamp does not go on for 1 minute after door is opened.
Oven lamp and antenna motors do not go on in cook cycle.
Oven goes into a cook cycle but shuts down before and off
cooking cycle.
Oven...

RCD2200M
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SPECIFICATION OF ERROR
Outline Operation when error occurs Display in operation usually
When a basic performance and the function are ruined Displaying  and heating stop EE0, EE1, EE2, EE3, EE8
When the dangers of the state of the high temperature and the ignition, etc. are 
foreseenDisplaying  and heating stop EE7
When you mistake the setting of the heating time Operation stop EE9
When neither the power supply nor the environmental condition are proper Operation stop EE4, EE5, EE6
When...

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RCD2200M

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RCD2200M
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4. Isolate the high voltage rectifier assembly from the HV circuit. The high voltage rectifier can be tested using an ohmmeter set to its highest range.
Connect the ohmmeter across the terminal B+C of the high voltage rectifier and note the reading obtained. Reverse the meter leads and note this
second reading. The normal resistance is infinite in one direction and more than 100k ohms in the other direction.
5. Reconnect all leads removed from components during testing.
6. Reinstall the...

RCD2200M
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[6] F: PRIMARY INTERLOCK SYSTEM TEST
1. DOOR SENSING SWITCH
1. Disconnect the power supply cord, and then remove outer case and rear cabinet.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an
open circuit with the door open and a closed circuit with the door closed. If improper operation is indicated, replace the door sensing...

RCD2200M
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3. Discharge high voltage capacitor.
4. If the monitor fuse is blown when the door is opened, check the primary interlock relay RY1, secondary interlock switches (1), (2) and monitor
switches (1), (2) according to the “TEST PROCEDURE” for those switches before replacing the blown monitor fuse.
CAUTION: CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE, TEST THE PRIMARY INTERLOCK RELAY, SECONDARY INTERLOCK
SWITCHES, DOOR SENSING SWITCH AND MONITOR SWITCHES FOR PROPER OPERATION.
If the monitor...

RCD2200M
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6. Reinstall the rear cover and the outer case (cabinet).
7. Reconnect the power supply cord after the rear cover and the outer case are installed.
8. Run the oven and check all functions.
[12] L: EXHAUST THERMISTOR TEST
The exhaust thermistor can be checked by using the Special function (SF-6). Check the exhaust thermistor, referring to the pages of the Exhaust ther-
mistor check (SF-6). 
If the display shows “OH”, the exhaust thermistor is normal. If the display shows “no”, the exhaust...