If The Instrument Will Not Boot; Table 4- -5: Power Supply Voltages - Tektronix DSA8200 Service Manual

Table 4- - 5: Power supply voltages
Front power distribution board (P2)
Pins A1, B1, C1
Pins A13, B13, C13
Pins A15, B15, C15
Pins A17, B17, C17
Pins A24, B24, C24
Pins A17, B17, C17
Pins A24, B24, C24
If the instrument Will Not
Boot
DSA8200 Digital Serial Analyzer and Modules Service Manual
Voltage
+3.3 V
--15 V
+15 V
--5 V
+5 V
--5.2 V
+5.2 V
P2 (power supply)
Figure 4- - 51: Connectors P1 and P2
If there is a display on the VGA port, but not on the LCD, replace the display
assembly (LCD, lamps, and cable).
If nothing is displayed, is the display turned on? At boot time and while using an
external monitor connected to the ATX external video port, press F2 to enter the
BIOS setup. The Advanced Video Configuration menu lets you select PCI (LCD)
or AGP (the ATX port on the rear panel). The lower VGA port on the rear panel
is the PCI video port (driven by the same video controller as the LCD).
If none of the above is true, the display adapter may be bad.
Rear power distribution board (P1)
Pins A5, B5, C5
Pins A8, B8, C8
Pins A19, B19, C19
Rear power
distribution
circuit board
Front power
distribution
circuit board
Troubleshooting
Voltage
+12 V
+5 V
+3.3 V
P1 (power supply)
4- - 87