Sharp R530es Service Manual

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8 – 8
6) Reconnect all leads removed from components during testing.
7) Re-install the outer case (cabinet).
8) Reconnect the power supply cord after the outer case is installed.
9)  Reconnect the oven to the power supply and check the sensor cook operation as follows:
a) Fill approximately 200 milliliters of tap water in a 1000 milliliter measuring cup.
b)  Place the container on the center of tray in the oven cavity.
c) Close the door.
d) Touch the TIMER/CLOCK pad once, the POWER LEVEL pad...

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R530EWTService Manual CHAPTER 9. TOUCH CONTROL PANEL ASSEMBLY
[1] OUTLINE OF TOUCH CONTROL PANEL 
The touch control section consists of the following units.
(1) Key Unit      
(2) Control Unit (The Control Unit consists of Power Unit and CPU
Unit). 
The principal functions of these units and the signals communicated
among them are explained below.
1. Key Unit
The key unit is composed of a matrix, signals generated in the LSI are
sent to the key unit through P00-P07. When a key pad is...

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[2] ABSOLUTE HUMIDITY SENSOR CIRCUIT
1. Structure of Absolute Humidity Sensor
The absolute humidity sensor includes two thermistors as shown in the
illustration. One thermistor is housed in the closed vessel filled with dry
air while another in the open vessel. Each sensor is provided with the
protective cover made of metal mesh to be protected from the external
airflow.
2. Operational Principle of Absolute Humidity Sen-
sor
The figure below shows the basic structure of an absolute...

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[3] SERVICING FOR TOUCH CONTROL PANEL
1. Precautions for Handling Electronic Components
This unit uses CMOS LSI in the integral part of the circuits. When han-
dling these parts, the following precautions should be strictly followed.
CMOS LSI have extremely high impedance at its input and output ter-
minals. For this reason, it is easily influenced by the surrounding high
voltage power source, static electricity charge in clothes, etc., and
sometimes it is not fully protected by the...

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R530EWTService Manual CHAPTER 10. PRECAUTIONS FOR USING LEAD-FREE SOLDER
Employing lead-free solder
The “Main PWB” of this model employs lead-free solder. This is indicated by the “LF” symbol printed on the PWB and in the service manual. The suffix
letter indicates the alloy type of the solder.
          Example:
Using lead-free wire solder
When repairing a PWB with the “LF” symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may result in cold soldered
joints...

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R530EWTService Manual CHAPTER 11. COMPONENT REPLACEMENT AND ADJUSTMENT PROCE-
DURE
[1] WARNINGS
Please refer to “OVEN PARTS, CABINET PARTS, CONTROL PANEL PARTS, DOOR PARTS”, when carrying out any of the following removal proce-
dures:
[2] OUTER CASE REMOVAL
To remove the outer case, procedure as follows.
1. Disconnect the power supply cord.
2. Open the oven door and block it open.
3. Remove the two (2) screws from the lower portion of the rear cabi-
net using a T20H Torx type or...

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CAUTION: DISCONNECT OVEN FROM POWER SUPPLY BEFORE
REMOVING OUTER CASE.
DISCHARGE THE HIGH VOLTAGE CAPACITOR
BEFORE TOUCHING ANY OVEN COMPONENTS OR
WIRING.
NOTE:When replacing the outer case, the 2 special Torx screws
must be reinstalled in the same locations.
[3] POWER TRANSFORMER REMOVAL
1. REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the oven door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect wire leads (primary) from power...

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[6] OVEN LAMP REMOVAL
1. Disconnect the power supply cord and then remove outer case.
2. Open the oven door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the oven lamp.
5. Remove the one (1) screw holding the oven lamp to the magnetron
duct.
6. Remove the oven lamp from the magnetron duct.7. Now, the oven lamp is free.
 Figure C-1. Oven lamp
[7] POSITIVE LOCK  CONNECTOR (NO-CASE TYPE) REMOVAL
1. Disconnect the power supply cord, and remove...

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CAUTION:Make sure that no metal pieces enter the gap between
the rotor and the stator of the fan motor because the
rotor is easily shaven by pliers and metal pieces may
be produced.
Do not touch the pliers to the coil of the fan motor
because the coil may be cut or injured.
Do not disfigure the bracket by touching with the pli-
ers.
8. Remove the fan blade assembly from the shaft of the fan motor by
pulling and rotating the fan blade with your hand.
9. Now, the fan blade will be free....

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11  –  5 2. After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when in the
latched position. First check upper position of latch hook, pushing
and pulling upper portion of door toward the oven face. 
Then check lower portion of the latch hook, pushing and pulling
lower portion of the door toward the oven face. Both results (play in
the door) should be less than 0.5mm.
2. The door sensing switch and secondary interlock switch interrupt
the circuit before the...