Section 7
7-9
7.2.3. Power Supply Check
7.2.3.1. Primary Current Drive Power Supply PCB Test Procedure
1. Using a DMM, measure the DC voltages at the Primary Current Drive
Power Supply PCB test points. The voltages should be as shown in Table
7-3.
2. Using an oscilloscope, measure the noise voltage levels at the Primary
Current Drive Power Supply PCB test points. The noise levels should be
as listed in Table 7-3.
Test points on PCB Assy 19108
(near J100)
Voltage
(V ±5%)
Noise Limits
(mV p-p)
TP -40V with respect to TP110 -40.0 <100
TP +40V with respect to TP110 +40.0 <100
TP -15V with respect to TP110 -15.0 <100
TP +15V with respect to TP110 +15.0 <100
TP +12VR with respect to TP110 +12.0 <100
TP +5V with respect to TP110 +5.0 <500
J300-1 with respect to TP303 +15.0 ±10% <200
Table 7-3 : Test Point Voltages Assembly 19108
To Next Page
Loading...