TB 9-6625-2271-40
(5) Replace A5 CPU Y1 (fig. 5) cover screw and TI top cover.
14. Output Level
a. Performance Check
(1) Connect TI OUTPUT HIGH to ac measurement standard INPUT 2 HI and LO.
Setup ac measurement standard to measure levels at INPUT 2.
(2) Press keys and enter values using DATA ENTRY keys as listed in (a) through
(g) below:
LCL INIT.
(a)
SOURCE LEVEL.
(b)
3 mV.
(c)
SOURCE FREQ.
(d)
1 kHz.
(e)
SPCL
(f)
75 ENTER
(g)
(3) If ac measurement standard indication is not between 2.97 and 3.03 mV ac,
perform b below.
(4) Repeat technique of (2) (b) through (g) and (3) above using TI SOURCE settings
and ac measurement standard indications listed in table 10.
Table 10.
Level Accuracy
Test instrument
Ac measurement standard
SOURCE settings
indications
LEVEL
FREQ
Min
Max
3
mV
90 kHz
2.955
mV
3.045 mV
3
mV
120 kHz
2.925
mV
3.075 mV
30
mV
1 kHz
29.835
mV
30.165 mV
30
mV
90 kHz
29.685
mV
30.315 mV
30
mV
120 kHz
29.52
mV
30.48
mV
300
mV
1 kHz
298.35
mV
301.65
mV
300
mV
90 kHz
296.85
mV
303.15
mV
300
mV
120 kHz
295.2
mV
304.8
mV
3
V
1 kHz
2.9835 V
3.0165 V
3
V
90 kHz
2.9685 V
3.0315 V
3
V
120 kHz
2.952
V
3.048 V
16
V
1 kHz
15.912
V
16.088 V
16
V
90 kHz
15.832
V
16.168 V
16
V
120 kHz
15.744
V
16.256 V
(5) Press keys and enter values using DATA ENTRY keys as listed in (a) through
(g) below:
LCL INIT.
(a)
SOURCE LEVEL.
(b)
3 mV.
(c)
SOURCE FREQ.
(d)
1 kHz.
(e)