Atec Tektronix-1502 User Manual
Page 56
TM 9-4935-601-14-3&P
Adjustment Procedure
Y OUTPUT
10. Move the test leads from the PEN LIFT terminals to the corresponding Y terminals of the X-Y OUTPUT
MODULE.
11. Set the 1502 ZERO REF SET completely clockwise.
12. Push the RECORD switch to RECORD and adjust the 1502 POSITION controls so that the DVM reads
0.0 volt.
13. Turn the 1502 ZERO REF SET completely counter-clockwise and check that the DVM reads
approximately +0.4 volt. Release the RECORD switch.
14. Adjust-R7225 (on X-Y OUTPUT MODULE board) until the DVM reads +0.4 volt while holding the
RECORD switch to RECORD.
X OUTPUT
15. Move the test leads to the X terminals.
16. Press the RECORD switch.
17. Check-that the voltage reads from 0 to 1 V (100 mV/div) as the dot moves across the screen.
REPLACING THE CASE ON THE 1502
To replace the case on the 1502, proceed as follows:
1.
Remove any termination and adapters from the CABLE connector.
2.
Remove the battery pack and power cord from the back of the 1502.
3.
Place the EMI shields on the top and bottom of the 1502.
4.
Stand the 1502 on its face. Lubricate the surface of rubber seals around edge of subpanel with a
waterproof lubricant.
5.
Slide the case over the back of the unit, until it has reached the subpanel.
6.
Tighten the 4 screws on the back of the case until the case is aligned with the groove at the back of the
subpanel.
7
Make sure the case is in the groove; then, using a torque-limiting screwdriver, tighten the 4 screws to 8
inch-pounds.
NOTE
If the screws are tightened more than 8 inch-pounds, the case may crack. If the
screws are not tightened equally to the required torque, the watertight integrity of
the case may be compromised.
8.
Place the battery pack in its compartment and tighten the 2 screws (finger tight is sufficient).
9.
Place the power cord and the rest of the accessories in the front cover storage compartment and latch
it closed.
10. Place the front cover over the front cover panel and close the latches.
NOTE
For detailed sealing instructions, see the Maintenance instructions in Section 5.
REV A FEB 1980
4-18