Boonton 4530 Series, Service And Calibration Manual

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BOONTON ELECTRONICS a WIRELESS TELECOM GROUP COMPANY
3
Section 1: 4530 Series Test Procedure
Note: The following procedures assume that the technician is familiar with the basic menu operation of the
4530 Series. To select menu items, press the MENU key twice to return to the top-level menu, and then
use the up and down arrows to highlight the desired entry. Once highlighted, the right arrow or Enter key
is used to select that entry. The ESC key aborts a menu entry, and the left arrow moves back one level in
the menu hierarchy. To select a different menu item at the same menu level, simply navigate directly - it is
not necessary to return to the top of the menu hierarchy. If needed, see the 4530 User’s Manual for more
detailed instructions on menu navigation, and a complete chart of the menu tree.
1) TEST SETUP
a. Remove instrument cover by removing four screws on rear and carefully sliding cover off the back
of the instrument.
b. Connect AC line cord to AC mains (90-264Vac, 47-63Hz)
c. Turn ON rear panel power switch.
d. If instrument turns “on” (display lights, fan runs), wait for startup to complete, then press ON/STBY
key on front panel to return the unit to “standby”.
2) TESTING the 24V UNIVERSAL SUPPLY:
a. Locate Universal Power Supply: small (3” x 5” approx) pc board on top of chassis.
b. Verify that supply voltage is 24.0VDC +/-0.5VDC on the output connector (P102) of the power
supply:
P102-4 is GND, P102-2 is +24V
Pin 1 is near P102 reference designator on power supply board.
c. Verify that the AC ripple voltage on the output connector is less than 250mV peak-to-peak.
d. Press the ON/STBY switch on front panel to turn the unit “ON”, and wait 15 seconds for
initialization to complete.
e. Repeat the DC output and AC ripple tests above of the universal power supply.
3) TESTING HOST BOARD POWER SUPPLY
a. Locate the Host CPU Board: large “L” shaped pc board on top of chassis.
b. Verify the main supply voltages at the following testpoints:
TP1 = +15.00VDC +/- 0.25V
TP2 = +7.50 VDC +/-0.25V
TP3 = -15.00 VDC +/-0.25V
TP4 = -7.50 VDC +/-0.25V
TP6 = +5.00 VDC +/-0.25V
Scans by ArtekMedia => 2009