17
R-1200
R-1201
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
Menu
1ST STAGE
2ND STAGE
Steaks/Chops
LEVEL
TIME
LEVEL
TIME
0.5lbs
60%
57sec.
40%
17sec.
(8) If improper operation is indicated, the control unit is probably defective and should be checked.
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.
2) Open the door and block it open.
3) To discharge high voltage capacitor, wait for 60 seconds.
4) Remove the power unit, referring to the procedure of " RIGHT PANEL ASSEMBLY AND POWER
UNIT REMOVAL ".
5) Follow the troubleshooting guide given below for repair.
STEPS
OCCURRENCE
CAUSE OR CORRECTION
1
Only pattern at "a" is broken.
*Insert jumper wire J1 and solder.
2
Pattern at "a" and "b" are broken.
*Insert the coil RCILF2003YAZZ between "c" and "d".
6) 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 780
Ω
±
10%). If any
abnormal condition is detected, replace
the defective parts.
7) Reconnect all leads removed from components during testing.
8) Re-install the power unit to the right panel and re-install the right panel to the oven.
9) Reconnect the power supply cord.
10) 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. Refer to procedure of "
REMOVAL OF OVEN FROM WALL " and " OUTER CASE REMOVAL ".
2) Open the door and block it open.
3) To discharge high voltage capacitor, wait for 60 seconds.
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
OCCURRENCE
CAUSE OR CORRECTION
The rated AC voltage is not present between
1
the normal open terminal of the relay RY2 and
Check supply voltage and oven power cord.
the normal open terminal of the relay RY1.
2
The rated AC voltage is present at primary
Low voltage transformer or secondary circuit defective.
side of low voltage transformer.
Check and repair.
N
FOIL PATTERN ON THE PRINTED WIRING BOARD TEST
RY1
RY2
(J1)
b
c
d
a
T1
1
3
VRS1
