POWER SUPPLY ISOLATION PROCEDURE
Each regulated supply has numerous feed points to on that supply line. By lifting jumpers or other components
external loads through the instrument. Diagram
8,
power in the supply line farther down the line, the circuit in which
distribution, is used in conjunction with the schematic a short exists may be located.
diagrams to determine the service jumper or component
that may be lifted to isolate loads from the power supply.
Always set the POWER switch to OFF before soldering
or unsoldering service jumpers or other components and
If a supply comes up after lifting one of the isolating before attempting to measure component resistance
jumpers, it is very probable that short exists in the circuitry values.
OTHER
PARTS
REV
APR
1990
Scans
by
ARTEK
MEDM
=-
CIRCUIT
NUMBER
DL224
Jl
00
Jl
00
J151
J151
J300
SCHEM
NUMBER
2
1
6
1
6
6
SCHEM
LOCATION
5K
1 C
1
K
5C
3K
7M
CIRCUIT
NUMBER
J5QO
R1
R3
R47
R51
R51
SCHEM
LOCATION
3M
1K
2K
28
58
3K
SCHEM
NUMBER
4
6
8
1
1
6
ClRCUrr
NUMBER
R53
R382
TgOl
VgOO
SCHEM
NUMBER
6
6
7
7
SCHEM
LOCATION
3K
7M
66
2L
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