ZMM Haskovo Joybook R48 Series Service Manual download pdf (Page 24)

PMOR3021S

PMOR3021B

PMOR3021R

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

P NOISE FILTER TEST

1. Disconnect the power supply cord, and then remove outer case.

2. 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 INDICATION OF OHM-METER

Between source and source Open Circuit

Between terminal source and load Short Circuit

If incorrect readings are obtained, replace the noise filter.

6. Reconnect 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.

NOISE FILTER UNIT

NOISE SUPPRESSION COIL

LINE CROSS CAPACITOR

TOR 0.22uF/ AC 250V

LINE BYPASS CAPACITOR

0.0033uF/ AC

125V

0.0033uF/ AC

125V

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ZMM Haskovo Joybook R48 Series Service Manual Page 24