Fluke 93 Service Manual page 146

7-20
CORRECTIVE MAINTENANCE
Comp Name
(pin)
Scope
CIrc/IC
Freq.
Data
H/L/A
68
ADC4/ADC4
69
.../VSS
70
ADC3/ADC3
71
ADC2/AOC2
72
ADC1/ADC1
73
ADCQ/ADCO
74
STOPN/STOPN
75
HLDOFFN
/HLDOFFN
Unstable
ICLJf
0
Unstable
Unstable
Unstable
100
Hz
0
500 Hz
1
kHz
2.5
kHz
2.7
kHz
5
Hz
Unstable
5
Hz
A
L
A
A
A
A
A
A
76
TRACKn'RACK
Unstable
11
kHz
77
.../TRACKN
not
used
78
CHANA/CHANA
1
0
H
79
CONTR/CONTR
4.68
kHz
A
80
STIMUUSTIMUL
976 Hz
A
81
HF-COMP/HFCOMP
Unstable
4.882
kHz
A
82
TRIMD/TRIMD
83
.../TflIMC
84
.../TRIMS
85 .../TRIMA
86
POS-CHB/SHIFTB
nnn
1 1
1
1 1
4.882
kHz
A
1 1 1 1
1
0
L
1 1
1
1
1
4.862
kHz
A
11
1
1
1
4.882
kHz
A
1
1 1 1
1
4.682
kHz
A
Description
ADC
data output
4
Volt
Supply
Ground
ADC
data output 3
ADC
data output 2
ADC
data output
1
ADC
data output 0
Acquisition
Stop Not
Trigger Hold
Off
Not
Track
(acquisition clock
ADC)
Track
Channel A
Contrast
Stimulus output
High Frequency
Compensation
(32
digit
zero meter
correction)
Trimming
output
D
Trimming
output
C
Trimming
output
B
(not
used)
Trimming
output
A
(not
used)
Position
-Channel
B/Shift
channel B