GE DVM1950 Technical Service Manual page 39

Over-the-range microwave oven
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Control Performance Test
1. Set Clock – Touch Settings pad 2 times, enter time of day, press Settings pad to select AM/PM, then
touch Settings pad again to set.
2. Alternately, touch each function pad and enter time, power level, or selection for the selected function.
3. Touch Cancel/Off after each function test to clear that function.
4. Repeat procedure for each function to test each pad.
5. Control and display should respond to each entry.
6. Display should revert to Time Of Day after each Cancel/Off.
7. Refer results to troubleshooting fl owchart.
Technical Data Sheet
The Smart Board contains the power relay,
vent blower triac, surface light relays, and
other components to perform the proper
switching circuits. Several disconnect plugs
are also located on the Smart Board:
CN101 – Ribbon Connector
CN102 – Vent and Cooktop Lamp
Tact Switch Connector
CN201 – Primary SMPS and Zero
Standby Switch Connector
CN202 – Main Relay, Cooktop
Light, Turntable Relay and
Inrush Relay Connector
CN203 – Vent Relay Connector
CN301 – Gas Sensing Connector
CN402 – Door and Hood Sensing
Connector
CN901 – Battery Connector
Many diagnostic circuit tests can be made
at the disconnect plugs. (Refer to trouble-
shooting fl owchart and simplifi ed schematic
in mini-manual.)
(JVM1950, DVM1950, JNM1951, PVM1970, PNM1971)
(JVM1950, DVM1950, JNM1951, PVM1970, PNM1971)
Connector Pin
CN101
Voltage
1
0 - 5.25 V
2
0 - 5.25 V
3
0 - 5.25 V
4
0 - 5.25 V
5
0 - 5.25 V
6
0 - 5.25 V
7
0 - 5.25 V
8
0 - 5.25 V
9
0 - 5.25 V
10
0 - 5.25 V
11
0 - 5.25 V
12
0 - 5.25 V
13
0 - 5.25 V
14
0 - 5.25 V
15
0 - 5.25 V
16
0 - 5.25 V
– 39 –
Connector Pin
Voltage
CN102
1
4.75 - 5.2 V
2
4.75 - 5.25 V
3
GND
CN301
1
4.75 - 5.25 V
2
0 - 5.25 V
3
GND
4
4.75 - 5.25 V
CN402
1
9.6 - 14.4 V
2
Not
Connected
3
0 - 14.4 V
4
0 - 5.25 V
5
GND
CN901
1
0 - 3.1 V
2
GND
3
GND

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