Sharp MODEL R-2197, Service Manual

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24
R-2197
Removal
1. CARRY OUT 3D CHECKS.
2. Remove the one (1) screw holding the green/yellow
wire to the cavity rear plate.
3. Disconnect the leads of the power supply cord from the
noise filter, referring to the Figure C-3(a).
4. Release the power supply cord from the oven cavity
rear plate.
5. Now, the power supply cord is free.
POWER SUPPLY CORD REPLACEMENT
Re-install
1. Insert the moulding cord stopper of power supply cord
into the square hole of the oven cavity rear plate,
referring to the Figure C-3(b).
2. Install the earth wire lead of power supply cord to the
cavity rear plate with one (1) screw and tight the screw.
3. Connect the brown and blue wire leads of power supply
cord to the noise filter correctly, referring to the Pictorial
Diagram.
Figure C-3 (a) Replacement of Power Supply Cord
Figure C-3(b). Power Supply Cord Replacement
1. CARRY OUT 3D CHECKS.
2. Remove the control panel assembly referring to "CON-
TROL PANEL ASSEMBLY REMOVAL".
3. Disconnect the leads from all switches.
4. Remove the two (2) screws holding the latch hook to
the oven cavity.
5. Remove the latch hook.
6. Push the retaining tab outward slightly and remove the
switch.
Re-install
1. Re-install each switch in its place. The 1st. latch switch
and the stop switch are in the lower position and the
2nd. latch switch is in the upper position. The monitor
switch is in the middle position.
2. Re-connect wire leads to each switch.
Refer to pictorial diagram.
3. Secure latch hook (with two (2) mounting screws) to
oven flange.
1ST. LATCH SWITCH, 2ND. LATCH SWITCH SWITCH, STOP SWITCH
AND MONITOR SWITCH REMOVAL
Figure C-4. Switches
If the 1st. latch switch, 2nd. latch switch, stop switch and
monitor switch do not operate properly due to a mis-
adjustment, the following adjustment should be made.
1. CARRY OUT 3D CHECKS.
2. Loosen the two (2) screws holding the latch hook to the
oven cavity front flange.
3. With door closed, adjust latch hook by moving it back
1ST. LATCH SWITCH, 2ND. LATCH SWITCH SWITCH, STOP SWITCH
AND MONITOR SWITCH ADJUSTMENT
and forth, and up and down. In and out play of the door
allowed by the upper and lower position of the latch
hook should be less than 0.5mm. The vertical position
of the latch hook should be adjusted so that the 1st.
latch switch, 2nd. latch switch and stop switch are
activated with the door closed. The horizontal position
of the latch hook should be adjusted so that the plunger
4. Make sure that the monitor switch is operating properly
and check continuity of the monitor circuit. Refer to
chapter "Test Procedure" and Adjustment procedure.
Power Supply Cord
Chassis
Support
WHT
RED
L
N
Screw
Green/Yelow
Wire
Noise Filter
Bule Wire
Oven Cavity
Back Plate
Brown Wire
Latch Hook
Tabs
Tab
Tab
Tab
Tab
2nd. Latch Switch
Monitor Switch
Stop Switch (Oven side)
1st. Latch Switch
(Cabinet side)
Power
Supply Cord
Moulding
Cord Stopper
Oven Cavity
Rear Plate
Square Hole