TB 9-6625-1960-40
(2) Position controls as listed in (a) through (d) below:
Adjust AMPLITUDE and POSITION controls to midrange.
(a)
Press REP RATE 1 MHz pushbutton (in).
(b)
TEST switch to VERT or HORIZ GAIN.
(c)
MODE CLK switch S129 to -3 DIV (located left side top of TI) (fig. 6).
(d)
Figure 6. Test instrument - left side view (Type 067-0587-02).
(3) S e t t h e T I P O S I T I O N c o n t r o l f o r a v o l t a g e r e a d i n g o f - 0 . 1 5 0 0 V o n
t h e multimeter.
(4) Set S129 to +3 Div.
(5) Check for a reading of +0.1500 0.3% (+0.1496 to +0.1504 V).
(6) Adjust R 165 (fig 6), Gain Cal for a multimeter reading of +0.1500 V.
NOTE
INTERACTION - Because the Gain Cal and POSITION
controls interact, repeat steps (2) through (6) until both + and
voltages are within specifications. The difference between the
readings at the -3 Div and +3 Div settings must be 0.3000 V
0.3% (or more than 0.2991 V and less than 0.3009 V).
(7) Set MODE CLK switch to center position.
(8) Set oscilloscope mainframe switch to OFF.
(10) Set oscilloscope mainframe switch to ON and allow approximately 5
minutes for warm-up.
(11) Press and release stepper for nearest 0 indication on multimeter.
(12) Adjust POSITION control for indication on multimeter.
(13) Press and release stepper for multimeter indications listed in table 7.
Multimeter will indicate within limits specified.
10