Table
5-6.
Model
197
Troubleshooting Mode (Cont.)
00
00
00
10
XI
XI
XI
XI
x5
x5
x5
x5
AC
AmD
Range Control
Function
and
Range
2kQ
DC Amp
Gain
u102
XI
XI
XI
XI
Test
Mode
002
102
202
302
M
ul
ti
plexer Range
FET On Transistor On
Q104, Q105
0104, 0105
Q104, 0105
Q110 0104, Q105
Gain
U104
20kQ
003
103
203
303
01
00
10
00
0104, 0105,
Q108,
Q109
~
0
0104, 0105,
0108,
Q109
Q104, 0105,
Q108,
Q109
0104, 0105,
Q108,
Q109
0
XI
XI
XI
XI
01
13
Q112
Q111
Q110
Q113
Q112
Q111
Q110
200kQ
004
104
204
304
01
00
10
00
XI
XI
XI
XI
005
105
205
305
Q104, Q105
Q104, 0105
Q104, Q105
0104. 0105
0
'1
I
0
01
1
01
0
01
2MQ
XI
XI
XI
XI
01
13
Q112
0111
Q110
20M
Et
200M
(Auto)
006
106
206
306
XI
XI
XI
XI
Q113
01 12
Qlll
Q113
Q111
Q112
Q113
Q112
ACA
All
Ranges
OA
1
-0A6
1
A1
-1
A6
2A
1
-2A6
3A
1
-3A6
5.8
SPECIAL HANDLING
OF
STATIC-
SENSITIVE DEVICES
static-protected containers. The parts should remain there
until ready for installation.
2.
Remove the devices from their protective containers only
at a properly grounded work station. Always ground
yourself with a suitable wriststrap.
3.
Handle the devices only by the body.
Do
not touch the
pins.
4.
Any printed circuit board into which the device is to be in-
serted must also be grounded to the bench or work station.
5.
Use only grounded type solder suckers.
6.
Use only a grounded type soldering iron.
7. Once the device is installed on the
PC
board, the device is
adequately protected and normal handling may resume.
CMOS
devices are designed to operate at very high im-
pedance levels for low power consumption. As a result, any
normal static charge that builds up on your person
or
clothing may be sufficient to destroy these devices if they are
not handled properly. Table 5-10 lists all the static sensitive
devices in the Model 197. When handling these devices, use
the following precautions to avoid damaging them.
1.
The devices listed in Table 5-10 should be transported and
handled only in containers specially designed to prevent
static build up. Typically, these devices will be received in
5-1
1
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