GW Instek GDM-8245 - Voltage Verification

GDM-8245 Service Manual
54
Voltage Verification
Accepted range
+15V±0.5V, -15V±0.5V, +3.1V±0.2V, -3.1V±0.2V, +1.8V±0.2V,
+6.2V±0.2V
Equipment
 DMM
 Test leads
Configurations
TP10
DMM
GND
GDM-8245
+15V
TP11
DMM
GND
GDM-8245
-15V
+3.1V
TP12
DMM
GND
GDM-8245
-3.1V
TP13
DMM
GND
GDM-8245
+1.8V
TP14
DMM
GND
GDM-8245
+6.2V
TP15
DMM
GND
GDM-8245
Verification
procedure
Remove the top case. Page 86. Remove the RF shield on
the main board.
1. Turn on the instrument.
2. Measure the voltage between TP10 and ground.
Range +15V±0.5V.
3. Measure the voltage between TP11 and ground.
Range -15V±0.5V.
4. Measure the voltage between TP12 and ground.
Range +3.1V±0.2V.
5. Measure the voltage between TP13 and ground.
Range -3.1V±0.2V.
6. Measure the voltage between the TP14 and ground.
Range +1.8V±0.2V.
7. Measure the voltage between TP15 and ground.
Range +6.2V±0.2V.
Ground (COM
terminal)
Ground