Sharp Carousel R-1600 Service Manual - Page 33

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CONTROL PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT REMOVAL

1. Disconnect the power supply cord.

2. Open the door and block it open.

3. Remove one (1) screw holding the hood exhaust louver

to oven cavity front flange.

4. Remove the hood exhaust louver from the oven by

pushing the right and left tabs of the hood exhaust louver.

(Refer to procedure of "HOOD EXHAUST LOUVER

REMOVAL")

5. Remove one (1) screw holding the control panel to the

oven cavity front face plate.

6. Release the control panel from the oven cavity front face

plate by lifting it up.

7. Disconnect the wire leads from the relays RY1 and RY2.

8. Disconnect the connectors CN-A, CN-B and CN-E from

the control unit.

9. Remove the control panel assembly from the oven.

10.Now, the control panel assembly is free.

11.Disconnect the connector CN-G from the control unit.

12.Release the two (2) tabs of LCD holder from the two (2)

holes of the key fixing plate.

13.Release the four (4) tabs holding the LCD holder to the

tcontrol panel.

14.Remove two (2) screws holding the power unit to the key

fixing plate.

15.Release the two (2) tabs holding the power unit to the key

POSITIVE LOCK

1. Disconnect the power supply cord and remove the oven

from wall and remove outer case. (Refer to procedure of

"Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Push the lever of positive lock

5. Pull down on the positive lock

CAUTION: WHEN CONNECTING THE POSITIVE LOCK

CONNECTORS TO THE TERMINALS, IN-

STALL THE POSITIVE LOCK

LEVER FACES YOU.

DOOR SENSING SWITCH, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL

1. Disconnect the power supply cord and remove the oven

from wall and remove outer case. (Refer to procedure of

"Removal of Oven from Wall" and "Outer case Removal")

2. Open the door and block it open.

3. Discharge high voltage capacitor.

4. Remove the control panel assembly, referring to the

procedure of "CONTROL PANEL ASSEMBLY ,

CONTROL UNIT AND KEY UNIT REMOVAL".

5. Remove the two (2) screws holding the latch hook to the

oven cavity front flange.

6. Remove the latch hook from the oven cavity front flange.

7. Disconnect the wire leads of each switch.

8. Remove each switch from the latch hook by pushing the

one (1) stopper tub holding each switch.

CONNECTOR (NO-CASE TYPE) REMOVAL

connector.

SO THAT THE

fixing plate.

16.Release the one (1) tab holding the LCD to the LCD

holder.

17.Release the four (4) tabs holding the LSI unit to the LCD

holder.

18.Remove the LCD holder and the LED sheet.

19.Now, the control unit is free.

20.Remove the one (1) screw holding the key fixing plate to

the control panel.

21.Release the six (6) tabs holding the key fixing plate to the

control panel.

22.Remove the key fixing plate from the control panel.

23.Tear the key unit from the key fixing plate.

24.Now, the key unit is free

NOTES FOR KEY UNIT REPLACEMENT

1. Do not reuse the torn key unit because the performance

of the adhesive becomes weak.

2. Before attaching a new key unit, wipe off remaining

adhesive on the key fixing plate surfaces completely with

a soft cloth soaked in alcohol.

3. When attaching the key unit to the key fixing plate, adjust

the upper edge and right edge of the key unit to the

correct position of key fixing plate.

4. Stick the key unit firmly to the key fixing plate by rubbing

with soft cloth not to scratch.

Positive lock®

connector

Lever

Positive lock

9. Now, each switch is free.

Re-install

1. Re-install each switch in its place. The secondary interlock

switch is in the lower position, door sensing switch is in

the upper position and the monitor switch is in the middle

position.

2. Re-connect wire leads to each switch. Refer to pictorial

diagram.

3. Secure the latch hook (with two (2) mounting screws) to

oven cavity front flange.

4. Make sure that the monitor switch is operating properly

and check continuity of the monitor circuit.

chapter "Test Procedure" and "Adjustment procedure".

R-1600

R-1601

R-1602

Terminal

Push

Pull down

connector

Refer to