Turntable Motor And Food Lamp Sockets Removal; Oven Lamp And Lamp Socket Removal; Servicing The Touch Control Panel - Bosch HMV5053C Manual

Section 4 Component Teardown
B. Servicing the touch control panel with power
supply from an external power source:
Disconnect the touch control panel completely from the
oven proper, and short both ends of the door sensing
switch (on PWB) of the touch control panel, which brings
about an operational state that is equivalent to the oven
door being closed. Connect an external power source to
the power input terminal of the touch control panel, then
it is possible to check and repair the controls of the touch
control panel; it is also possible to check the sensor-
related controls of the touch control panel by using the
dummy resistor(s).
Servicing Tools
Tools required to service the touch control panel
assembly.
1. Grounding strap.
2. Others: Hand tools
Other Precautions
1. Before turning on power source of the control unit,
wear grounding strap on the hand for preventing
static electricity.
2. Connect the connectors of the key unit to the control
unit, being sure that the lead wires are not twisted.
3. Attach connectors, electrolytic capacitors, etc. to
PWB, making sure that all connections are tight.
4. Be sure to use specified components where high
precision is required.
4-7
Turntable Motor And Food Lamp Sockets
Removal
1. Disconnect the power supply cord.
2. Open the door and block it open.
3. Remove the three (3) screws holding the bottom guide
plate to the oven cavity front face plate.
4. Remove the five (5) screws holding the base plate to the
bottom of cavity and outer case.
5. The base plate is now hanging on the rear cavity.
TURNTABLE MOTOR
6. Disconnect the wire leads from the turntable motor.
7. Remove one (1) screw holding turntable motor to
the oven cavity.
8. The turntable motor is now free.
HOOD LAMP SOCKET
9. Disconnect the wire leads from the lamp socket.
10. Remove the two lamp covers and remove the two
(2) screws holding the lamp socket to the base
plate. Remove the lamps. The lamp socket is now
free.

Oven Lamp And Lamp Socket Removal

1. Disconnect the power supply cord, remove the hood
exhaust louver.
2. Remove the one (1) screws holding the lamp cover
to the oven cavity front flange, then remove the
lamp cover.
3. Disconnect the wire leads from lamp socket.
4. Turn the oven lamp out from the lamp socket.
5. Turn the two (2) hooks of lamp socket bracket and
release the lamp socket.