2246 1Y and 2246 Mod A Service
1. Locate the Circuit Board Illustration.
2. Determine the Circuit Number and Schematic Diagram.
3. Locate the Component on the Schematic Diagram.
To identify any component mounted on
a circuit board and to locate that compo
nent in the schematic diagram.
a. Identify the Assembly Number of the circuit board that the component is
on by using the Circuit Board location illustration in this section or the
mechanical parts exploded views at the rear of this manual.
b. In the manual, locate the tabbed foldout page that corresponds with the
Assembly Number of the circuit board. The circuit board assembly num
bers and names are printed on the back side of the tabs (facing the rear of
the manual).
a. Compare the circuit board with its illustration. Locate the component you
are looking for by area and shape on the illustration to determine its Circuit
Number.
a. Locate the tabbed page that corresponds to the Schematic Diagram num
ber. Schematic diagram numbers and names are printed on the front side
of the tabs (facing the front of the manual).
b. Scan the lookup table next to the Circuit Board illustration to find the
Circuit Number of the component.
c. Read the SCHEM NUMBER column next to the component’s circuit num
ber to find the Schematic Diagram number.
b. Locate the Assembly Number in the Component Location lookup table
next to the schematic diagram. Scan the CIRCUIT NUMBER column of
that table to find the Circuit Number of the component you are looking for
in the schematic.
2230 Service
PULL-OUT
PAGE TABS
FOR
CIRCUIT BOARD
ILLUSTRATION
\
Figure 9-24, A20— XY Plotter board.
COMPONENT NUMBER EXAMPLE
ASSEMBLY NUMBER
AND
CIRCUIT BOARD
XY PLOTTER BOARD DIAGRAM 22
A20— XY PLOTTER BOARD
number
NUMBER
CIRCUIT
NUMBER
NUMBER
CIRCUIT
N L|MBER
SCHEM
NUMBER
Cfl
cn
003
006
on
014
015
1002
1003
I
CR1014
CR1016
J9301
L1001
L 1002
LI 003
G1011
01012
mooi
R1006
R1011
013
iii
*17
e
:
iii;
'001
lb02
22
22
22
22
22
22
22
22
22
22
22
22
SCHEMATIC
LOOKUP
TABLE
COMPONENT
LOCATION
TABLE
ILLUSTRATION FOR
INSTRUMENT
BOARD
LOCATION
NUMERAL AND LETTER AT SIGNAL LINES
TO OR FROM OTHER DIAGRAMS INDICATES
THE GRID COORDINATES ON ANOTHER SCHEMATIC
(FOR EXAMPLE: 8J)
1. Determine the Circuit Board Illustration and Component Location.
2. Locate the Component on the Circuit Board.
c. From the small circuit board location illustration shown next to the circuit
board, find the circuit board’s location in the instrument.
d. Find the circuit board in the instrument. Compare it with the circuit board
illustration in the manual to locate the component on the circuit board
itself.
schematic. Scan the CIRCUIT NUMBER column to find the Circuit Num
ber of the component.
c. Look in the BOARD LOCATION column next to the component number
and read its circuit board grid coordinates.
To identify any component in a sche
matic diagram and to locate that compo
nent on its respective circuit board.
0
a. From the schematic diagram, determine the Assembly Number of the cir
cuit board that the component is on. The Assembly Number and Name is
boxed and located in a corner of the heavy line marking the circuit board
outline in the schematic diagram.
b. Find the Component Location table for the Assembly Number found on the
In the manual, locate the tabbed page that corresponds to Assembly Num
ber the component is on. Assembly numbers and names for circuit boards
are on the back side of the tabs.
Using the Circuit Number of the component and its given grid location, find
the component in the Circuit Board illustration.
Figure 9-3. Locating components on schematic diagrams and circuit board illustrations.
Содержание 2246 1Y
Страница 13: ...2246A Service 7062 01 X The 2246 1Y or 2246 Mod A Portable Oscilloscope ...
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Страница 69: ...Theory of Operation 2246 1Y and 2246 Mod A Service 15 V 6081 07 3 32 Figure 3 4 Simplified Sweep Circuit ...
Страница 91: ...Theory of Operation 2246 1Y and 2246 Mod A Service 6081 12 6557 99 3 54 Figure 3 9 Power Supply block diagram ...
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Страница 278: ...Figure 9 5b Detailed 2246 1Y or 2246 Mod A block diagram part 2 R E ...
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Страница 304: ...A D D J U N 1991 ...
Страница 311: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 1 0 V r l III B f e I l i 6555 39 ...
Страница 314: ...15 14 13 12 11 10 9 8 7 6 5 12 11 10 9 8 7 AT117 A TI 271 1 2 3 4 5 6 6555 70 Figure 9 8 Hybrid pin identifiers ...
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Страница 343: ...C l rti ...
Страница 344: ...WAVEFORMS FOR DIAGRAM 5 2246 1Y and 2246 Mod A Service HORIZ MODE A A SEC DIV 2M S HOLDOFF MIN CCW ...
Страница 345: ...HORIZ MODE ALT A SEC DIV 2M s B SEC DIV 5 mS HOLDOFF MIN DELAY INTENSIFIED ZONE STARTS MIDSCREEN ...
Страница 347: ...BEV JUNE 1991 7062 18 ...
Страница 349: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 6 6555 43 I ...
Страница 354: ...A L B i C 1 D 1 E i F i G 1 2 3 4 5 6 7 8 2246 1Y AND 2246 MOD A _________A fc A A REV JUNE 1991 7062 19 ...
Страница 355: ...I BOARD LOCATION 8K 8J 8H 7H 8H 8H 7J 8D 7H 8H 8J 8J 7K 8K 10D 6L 6K 6L 6K 6G 5H I ...
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Страница 376: ...SCHEM LOCATION BOARD LOCATION 2E 2B 7F 4B 4J 5D 3J 5C 4L 6D 3L 6C 5L 7D 3L 7D 3M 7D 5M 7D IB 1A 1C 1A 2B 1A 3B 1A ...
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Страница 394: ...WAVEFORMS FOR DIAGRAM 12 2246 1Y and 2246 Mod A Service i f I S 1 f c i 4 i ...
Страница 395: ...WAVEFORMS FOR DIAGRAM 12 cont 2246 1Y and 2246 Mod A Service ...
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Страница 400: ...REV JUNE 1991 7062 39 ...
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