Replaceable Electrical Parts
9–2
REV JAN 1995
ECO 422
Column Descriptions
The component circuit number appears on the diagrams and circuit board
illustrations, located in the diagrams section. Assembly numbers are also marked
on each diagram and circuit board illustration, in the Diagram section and on the
mechanical exploded views, in the mechanical parts list. The component number
is obtained by adding the assembly number prefix to the circuit number.
Example a.
Component Number
A23R1234
A23
R1234
Assembly Number
Circuit Number
Read: Resistor 1234 of Assembly 23
Example b.
Component Number
A23A2R1234 A23
R1234
Assembly Number
Circuit
Number
Read: Resistor 1234 of Subassembly 2 of Assembly 23
A2
Subassembly Number
The electrical parts list is arranged by assemblies in numerical sequence (A1,
with its subassemblies and parts, precedes A2, with its subassemblies and parts).
Mechanical subparts to the circuit boards are listed in the electrical parts list.
These mechanical subparts are listed with their associated electrical part (for
example, fuse holder follows fuse).
Chassis-mounted parts and cable assemblies have no assembly number prefix
and are located at the end of the electrical parts list.
Indicates part number to be used when ordering replacement part from
Tektronix.
Column three (3) indicates the serial or assembly number at which the part was
first used. Column four (4) indicates the serial or assembly number at which the
part was removed. No serial or assembly number entered indicates part is good
for all serial numbers.
An item name is separated from the description by a colon (:). Because of space
limitations, an item name may sometimes appear as incomplete. Use the U.S.
Federal Catalog handbook H6-1 for further item name identification.
The mechanical subparts are shown as *ATTACHED PARTS* / *END AT-
TACHED PARTS* or *MOUNTING PARTS* / *END MOUNTING PARTS* in
column five (5).
Indicates the code number of the actual manufacturer of the part. (Code to name
and address cross reference can be found immediately after this page.)
Indicates actual manufacturer’s part number.
Component No.
(Column 1)
Tektronix Part No.
(Column 2)
Serial/Assembly No.
(Column 3 and 4)
Name and Description
(Column 5)
Mfr. Code
(Column 6)
Mfr. Part No. (Column 7)
Summary of Contents for ECO 422
Page 4: ......
Page 6: ......
Page 14: ...General Safety Summary viii ECO 422 ...
Page 16: ...Service Safety Summary x ECO 422 ...
Page 17: ...Getting Started ...
Page 18: ......
Page 31: ...Operating Basics ...
Page 32: ......
Page 41: ...Operating Basics ECO 422 2 9 Figure 2 6 Setup for Adjusting R265 the User Level for SX 7 ...
Page 43: ...Specifications ...
Page 44: ......
Page 52: ......
Page 53: ...Theory of Operation ...
Page 54: ......
Page 62: ...Theory of Operation 4 8 ECO 422 ...
Page 63: ...Performance Verification ...
Page 64: ......
Page 84: ...Performance Verification 5 20 ECO 422 ...
Page 85: ...Adjustment Procedure ...
Page 86: ......
Page 88: ...Adjustment Procedure 6 2 ECO 422 ...
Page 89: ...Maintenance ...
Page 90: ......
Page 101: ...Options ...
Page 102: ......
Page 104: ...Options 8 2 ECO 422 ...
Page 105: ...Replaceable Electrical Parts ...
Page 106: ......
Page 140: ...Replaceable Electrical Parts 9 34 ECO 422 ...
Page 141: ...Diagrams Circuit Board Illustrations ...
Page 142: ......
Page 145: ......
Page 147: ... ECO 422 Changeover Unit FRONT PANEL 1 ...
Page 148: ...ECO 422 ...
Page 166: ...ECO 422 ...
Page 167: ...Replaceable Mechanical Parts ...
Page 168: ......
Page 174: ...Replaceable Mechanical Parts 11 6 ECO 422 ...
Page 175: ......
Page 176: ...ECO 422 A1 FIG 1 EXPLODED VIEW A2 A3 A4 ...
Page 177: ......