Sharp Carousel R-326FS 서비스 매뉴얼 - 페이지 20

{카테고리_이름} Sharp Carousel R-326FS에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Sharp Carousel R-326FS 44 페이지. Sharp operation manual microwave oven r-326fs
Sharp Carousel R-326FS에 대해서도 마찬가지입니다: 운영 매뉴얼 (24 페이지)

페이지 인쇄

R - 326FS

PROCEDURE

LETTER

STEAKS/CHOPS LEVEL

(6) 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, and then remove outer case.

2) Open the door and block it open.

3) Discharge high voltage capacitor.

4) Follow the troubleshooting guide given below for repair.

STEPS

5) 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 212Ω ±

10%). If any abnormal condition is detected,

replace the control unit.

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) 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.

2) Open the door and block it open.

3) Discharge high voltage capacitor.

4) Disconnect the leads to the primary of the power transformer.

5) Ensure that these leads remain isolated from other components and oven chassis by using

insulation tape.

6) After that procedure, re-connect the power supply cord.

7) Follow the troubleshooting guide given below for repair.

STEPS

8) Disconnect the power supply cord, and then remove outer case.

9) Open the door and block it open.

10) Discharge high voltage capacitor.

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.

TEST PROCEDURES

1ST STAGE

0.5lb

70%

OCCURRENCE

Only pattern at "a" is broken.

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

OCCURRENCE

The rated AC voltage is not present between

the normal open terminal of the relay RY1 and Check supply voltage and oven power cord.

the normal open terminal of the relay RY2.

The rated AC voltage is present at primary

side of low voltage transformer.

COMPONENT TEST

2ND STAGE

TIME

LEVEL

TIME

16sec.

60%

27sec.

CAUSE OR CORRECTION

*Insert jumper wire J1 and solder.

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

CAUSE OR CORRECTION

Low voltage transformer or secondary circuit defective.

Check and replace the control unit.

3RD STAGE

LEVEL

TIME

30%

41sec.