Sharp Carousel R-1211 Servis Kılavuzu - Sayfa 12

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R-1210

R-1211

PROCEDURE

LETTER

10.To discharge high voltage capacitor, wait for 60 seconds.

11.Reconnect all leads removed from components during testing.

12.Re-install the outer case (cabinet).

13.Reconnect the power supply cord after the outer case is installed.

14.Run the oven and check all functions.

DEFROST CENTER TEST

(1) Open the door.

(2) Place one cup of water in the center of the turntable tray in the oven cavity.

(3) Close the door.

(4) Touch the " DEFROST CENTER " pad. And touch the number pad 2. Then touch the number pad 5.

(5) Touch the " START " pad.

(6) The oven is in Defrost center cooking condition.

(7) The oven will operate as follows.

Steaks/Chops

0.5lbs

(8) If improper operation is indicated, the control unit is probably defective and should be checked.

FOIL PATTERN ON THE PRINTED WIRING BOARD TEST

To protect the electronic circuits, this model is provided with a fine foil pattern added to the primary on

the PWB, this foil pattern acts as a fuse.

1. Foil pattern check and repairs.

1) Disconnect the power supply cord.

2) Open the door and block it open.

3) To discharge high voltage capacitor, wait for 60 seconds.

4) Remove the power unit, referring to the procedure of " RIGHT PANEL ASSEMBLY AND POWER

UNIT REMOVAL ".

5) Follow the troubleshooting guide given below for repair.

STEPS

6) Make a visual inspection of the varistor. Check

for burned damage and examine the

transformer with a tester for the presence of

layer short-circuit (check the primary coil

resistance which is approximately 780Ω ±

10%). If any abnormal condition is detected,

replace the defective parts.

7) Reconnect all leads removed from

components during testing.

8) Re-install the power unit to the right panel

and re-install the right panel to the oven.

9) Reconnect the power supply cord.

10) Run the oven and check all functions.

2. Follow the troubleshooting guide given below, if indicator does not light up after above check and

repairs are finished.

1) Disconnect the power supply cord, and then remove outer case. Refer to procedure of "

REMOVAL OF OVEN FROM WALL " and " OUTER CASE REMOVAL ".

TEST PROCEDURES

COMPONENT TEST

1ST STAGE

2ND STAGE

LEVEL

TIME

LEVEL

60%

57sec.

40%

OCCURRENCE

Only pattern at "a" is broken.

Pattern at "a" and "b" are broken.

TIME

17sec.

CAUSE OR CORRECTION

*Insert jumper wire J1 and solder.

*Insert the coil RCILF2003YAZZ between "c" and "d".

RY1

RY2

(J1)