Fluke 93 Service Manual page 140

7-14
CORRECTIVE MAINTENANCE
Comp Name
(pin)
CJrc
^IC
Scope
Freq.
Data
H/UA
Description
40
FRONTDATA2/HS1
.1
r
; 0
H
Frontdata2
/High speed
input 1.1
41 /HS0.4
niiiiiiiiiiiiiiii
400 Hz
A
/High
Speed
input
0.4
42 /VSS
0
1
/Voltage supply
ground
(0)
43
AD15^S0.5
1 1 1
L/A Address data 15/High Speed
input 0.5
44 LIGHT/HSO.O n
1
Light /High
Speed
input
0.0
45
/HSO.l
0
1
/High
Speed
input 0.1
46 PS1
/PI
.5
0
1
page
select
1 /port
1
.5
L
47 PS2
/PI
.6
.loiiminjir. 45-1.5 kHz
A
page
select
2
/port
1
.6
48
PS3/P1.7
_mrurui[
.
45-1
.5
kHz
A
page
select
3
^ort
1
.7
49
DTAEC/P2.6
0
1
Data enable
C
/port
2.6
50 /HS0.2
0
1
/High
Speed
Input 0.2
L
51
/VSS n
1 /Voltage supply
ground
(
0
)
L
52
NCC
0
H
/Main supply
(*^5V)
53
ON
OFF/HS0.3
0
1
on
oft
/High
Speed
input 0.2
54 A^SS
L
/Voltage supply
ground
(
0
)
65 ATSS
0
1 /Voltage supply
ground
(0]
56
/VPP
0
H
/(+5V)
57
FRONT
LATCH
/T2CAP/P2
~r.
\
'
H/A
Front
latch
/
68
TEST2/PWM
.liifiiiJiJirL...
12
kHz
A
Test 2 /Pulse
wdth
modulator
69
WRIN/WRUWR
V
mr
2.08
MHz
A
Write not
A/Vrite
low/WrIts
60
/WRH/BHE
nmr:--
2.08
MHz A
/Write high,
Bus High Enable