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Banana to Banana Cable
Ground Link
Removed
INPUT
Source V and
Model 617
Measure V/I
Unterminated
Banana Cable
Note : Setup shown is configured
to test isolation between
Bank A and chassis ground.
Figure 5-7
Common-mode isolation test connections
5.4
Special handling of static-sensitive
devices
CMOS and other high-impedance devices are subject to pos-
sible static discharge damage because of the high-impedance
levels involved. When handling such devices, use the precau-
tions listed below.
NOTE
In order to prevent damage, assume that all
parts are static-sensitive.
1. Such devices should be transported and handled only in
containers specially designed to prevent or dissipate
static build-up. Typically, these devices will be received
in anti-static containers made of plastic or foam. Keep
these parts in their original containers until ready for in-
stallation or use.
2. Remove the devices from their protective containers
only at a properly-grounded workstation. Also, ground
yourself with an appropriate wrist strap while working
with these devices.
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Model 7025
Unterminated
Triax Cable
Jumper
1
2
HI
A
(Red)
B
C
D
H
L
H
L
H
3. Handle the devices only by the body; do not touch the
4. Any printed circuit board into which the device is to be
5. Use only anti-static type de-soldering tools and ground-
5.5
The following paragraphs discuss the basic operating princi-
ples for the Model 7015, and can be used as an aid in trou-
bleshooting the card. The schematic drawing of the card is
shown on drawing number 7015-106, located at the end of
Section 6.
5.5.1 Block diagram
Figure 5-8 shows a simplified block diagram of the Model
7015. Key elements include the relay drivers and solid-state
relays, as well as the ROM, which contains card ID and con-
figuration information. These various elements are discussed
in the following paragraphs.
Bank Inputs
3
4
5
6
7
L
H
L
H
L
H
L
H
L
H
L
Model 7015
pins or terminals.
inserted must first be grounded to the bench or table.
ed-tip soldering irons.
Principles of operation
Service Information
8
9
10
H
L
H
L
Bank
Outputs
H
L
H
L
H
L
H
L
5-13
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