Viking VHSO205SS Service Manual page 27

PROCEDURE
LETTER
Z NOISE FILTER TEST
1. Disconnect the power supply cord, and then remove outer case.
. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the leads to the primary of the power transformer.
5. Using an ohm-meter, check between the terminals as described in the following table:
MEASURING POINT
Between N and H
Between terminal N and GRY
Between terminal H and RED
If incorrect readings are obtained, replace the noise filter.
6. R econnect all leads removed from components during testing.
7. Re-install the outer case (cabinet).
8. Reconnect the power supply cord after the outer case is installed.
9. Run the oven and check all functions.
TEST PROCEDURES
COMPONENT TEST
NOISE FILTER UNIT
NOISE SUPPRESSION COIL
LINE CROSS CAPACITOR
0.uF/ AC 50V
LINE BYPASS CAPACITOR
LINE BYPASS CAPACITOR
0.0033uF/ AC 15V
0.0033uF/ AC 15V
INDICATION OF OHM-METER
Open Circuit
Short Circuit
7
MONITOR
FUSE
Short Circuit
VHSO205SS