Agilent Technologies PSA Series Service Manual page 161

Figure 7-2 Verifying the Inverter Boards
Test Point
CN1 pin 1
CN1 pin 2
CN1 pin 3
CN1 pin 4
CN1 pin 5
CN1 pin 6
T1 pin 1
(input)
T1 pin 2
(input)
T1 pin 3
(input)
Chapter 7
Signal or Voltage
+4.9 Vdc
+4.9 Vdc
26 mV
+33 mV
+33 mV
+33 mV
−.30 Vdc
+3.3 Vdc
+3.3 Vdc
Troubleshooting the Processor, Power Supply, and Display
Test Point Signal or Voltage
T1 pin 4
(input)
T1 pin 5
(input)
T1 pin 6
(input)
T1 pin 7 60 V p-p sinewave @ 38 kHz
(output)
T1 pin 9 77 V p-p sinewave @ 38 kHz
(output)
T1 pin 10 450 V p-p sinewave @ 38 kHz
(output)
T1 pin 12 45 V p-p sinewave @ 38 kHz
(output)
−400 V to +400 V sinewave @ 38 kHz
CN2 A
−2.15 V to +4 V sinewave @ 38 kHz
CN2 B
Isolating a Display Problem
+3.3 Vdc
+33.4 mV
−.30 Vdc
(see figure)
(see figure)
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