Chapter 9 471
Controller Section
Troubleshooting Using the TAM (8560E)
Troubleshooting Using the TAM (8560E)
Table 9-1 on page 471 lists assembly test connectors associated with
each Manual Probe Troubleshooting test. Figure 9-1 on page 472
illustrates the location of the A2 test connectors.
Blank Display
Use the following procedure if the instrument display is blank. This
procedure substitutes an HP-IB printer for the display.
1. Connect the printer to the HP 8560E and set the printer address to
the value required by the TAM. This is usually 1.
2. All of the power-supply indicator LEDs along the edge of the A2
controller assembly should be lit.
3. The rear panel CRT +110 VDC ON indicator might not be lit, even if
the +110 V is present.
4. Connect the TAM probe cable to A2J11.
5. Press
MODULE, SOFT KEY #3, ⇓, and SOFT
Table 9-1 TAM Tests versus Test Connectors
Connector Manual Probe
Troubleshooting Test
Measured Signal Lines
A2J11 ADC/MUX Test MS1, MS3 through MS6, MS8
DAC test MS2, MS7, OS1
A2J201 10 volt reference test MS4
Switch drive test MS8
Buffered X &Y DAC outputs MS2, MS7
X line gen test MS6
Y line gen test MS1
Intensity offset output MS3
A2J202 Revision MS1
X, Y, &Z Output Offset MS3, MS4, MS7
X output amplifier MS7
Y output amplifier MS3
Blanking test MS8
Focus DAC test MS2
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