Electrolux # 서비스 매뉴얼 - 페이지 21

{카테고리_이름} Electrolux #에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Electrolux # 49 페이지. Over the range microwave oven
Electrolux #에 대해서도 마찬가지입니다: 설치 지침 매뉴얼 (8 페이지), 사용 및 관리 매뉴얼 (20 페이지), 사용 및 관리 매뉴얼 (36 페이지), 사용 및 관리 매뉴얼 (24 페이지), 사용 및 관리 매뉴얼 (38 페이지), 레시피 북 (17 페이지), 지침 책자 (12 페이지), 사용 및 관리 매뉴얼 (20 페이지), 지침서 (16 페이지), 지침서 (12 페이지), 소개 매뉴얼 (16 페이지), 사용자 설명서 (11 페이지), 사용 및 관리 매뉴얼 (26 페이지), 사용 및 관리 매뉴얼 (38 페이지), 소유자 매뉴얼 (9 페이지), 사용 및 관리 매뉴얼 (16 페이지), 사용 및 관리 매뉴얼 (16 페이지), 설치 지침 매뉴얼 (21 페이지), 소유자 매뉴얼 (16 페이지), 사용 및 관리 매뉴얼 (16 페이지)

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Electrolux # 서비스 매뉴얼
PROCEDURE
LETTER
K
TOUCH CONTROL PANEL ASSEMBLY TEST
The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore,
unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter
and ohmmeter.
In this service manual, the touch control panel assembly is divided into two units, Control Unit and Key
Unit, and also the Control Unit is divided into two units, LSI Unit and Power Unit, and troubleshooting
by unit replacement is described according to the symptoms indicated.
Before testing,
) Disconnect the power supply cord, and then remove outer case. Refer to procedure of "HOOD
EXHAUST LOUVER REMOVAL", "REMOVAL OF OVEN FROM WALL" and "OUTER CASE
REMOVAL".
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.
. Key Unit.
NOTE ;
) Disconnect the power supply cord, and then remove outer case.
2) Open the door and block it open.
3) Discharge high voltage capacitor.
4) Check key unit ribbon connection before replacement.
5) Reconnect all leads removed from components during testing.
6) Re-install the outer case (cabinet).
7) Reconnect the power supply cord after the outer case is installed.
8) Run the oven and check all functions.
The following symptoms indicate a defective key unit.
a) When touching the pads, a certain pad produces no signal at all.
b) When touching a number pad, two figures or more are displayed.
c) When touching the pads, sometimes a pad produces no signal.
If the key unit is defective.
) Disconnect the power supply cord, and then remove outer case.
2) Open the door and block it open.
3) Discharge high voltage capacitor.
4) Replace the key unit.
5) Reconnect all leads removed from components during testing.
6) Re-install the outer case (cabinet).
7) Reconnect the power supply cord after the outer case is installed.
8) Run the oven and check all functions.
TEST PROCEDURES
COMPONENT TEST
2