Troubleshooting
3-10
Procedure
Letter
K
L
Component Test
KEY UNIT TEST
1.
Disconnect the power supply cord.
2.
Open the door and block it open.
3.
Remove the control panel assembly.
4.
If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat
ribbon cable is making good contact, verify that the stop switch operates properly; that is
the contacts are closed when the door is closed and open when the door is open. If the
stop switch is good, disconnect the flat ribbon cable that connects the key unit to the
control unit and make sure the stop switch is closed (either close the door or short the stop
switch connecter). Use the Key unit matrix indicated on the control panel schematic and
place a jumper wire between the pins that correspond to the STOP/CLEAR pad making
momentary contact. If the control unit responds by clearing with a beep the key unit is
faulty and must be replaced. If the control unit does not respond, it is faulty and must be
replaced. If a specific pad does not respond, the above method may be used (after clearing
the control unit) to determine if the control unit or key pad is at fault.
5.
Reconnect all leads removed from components during testing.
6.
Re-install the control panel assembly.
7.
Reconnect the power supply cord.
8.
Run the oven and check all functions.
RELAY TEST
1.
Disconnect the power supply cord, and then remove outer case. Refer to procedure of
“HOOD LOUVER REMOVAL”, “REMOVAL OF OVEN FROM WALL ” and “ OUTER CASE
REMOVAL”.
2.
Open the door and block it open.
3.
Remove the hood intake duct R.
4.
Disconnect the leads to the primary of the inverter unit.
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.
G8
G9
G10
G11
G12
G1
G2
G3
G7
G6
G5
G4
KEY UNIT
CN-G
START/
add a minute
0
popcorn
5
8
power
level
STOP
clear
4
1
6
soften
3
2
7
warm
cook
quick
breakfast
9
reheat
dinner
recipes
user
pref
express
lunch
defrost
melt
keep
warm
fan
timer/
clock
light
Содержание EI30MH55GBA
Страница 2: ......
Страница 3: ...1 1 Section 1 Basic Information Basic Information ...
Страница 13: ...2 1 Section 2 Operation Operation ...
Страница 24: ...Operation 2 12 Notes ...
Страница 25: ...3 1 Section 3 Troubleshooting Guide Troubleshooting ...
Страница 40: ...Troubleshooting 3 16 Notes ...
Страница 41: ...4 1 Section 4 Component Teardown Component Teardown ...
Страница 56: ...Component Teardown 4 16 Notes ...
Страница 57: ...5 1 Section 5 Wiring Diagrams Wiring Diagrams ...
Страница 59: ...Wiring Diagrams 5 3 Figure S 2b Power Unit Circuit ...
Страница 60: ...Wiring Diagrams 5 4 Figure S 3b LSI Unit Circuit ...
Страница 61: ...Wiring Diagrams 5 5 Figure S 4 Printed Wiring Board ...
Страница 62: ...Wiring Diagrams 5 6 Notes ...
Страница 63: ...6 1 Section 6 Parts List Parts List ...
Страница 70: ...Parts List 6 8 Notes ...