Tektronix 2465B Service Manual

Tektronix
MANUAL CHANGE INFORMATION
coMMrrTEDTO EXCELLENCE Date: 30 JAN 93 Change Reference:
C1/0193
Product: 2465B/2467B Service Manual Part No.: 070-6863-00
DESCRIPTION Product Group 38
M69618
EFFECTIVE SERIAL NUMBERS: 2465B B015824 and above
EFFECTIVE SERIAL NUMBERS: 2467B B010809 and above
BOARD CHANGES
A1 MAIN BOARD
Remove wire W500 (location 1K), transistor Q740 (location 7L), and resistor R975 (location 7L).
DIAGRAM
CHANGES
Diagram <(0(2465B & 2467B) DISPLAY SEQUENCER TRIGGERING, A&B SWEEP
Change the value of resistor R946 (location 5N) to 220 Q.
Remove transistor Q740 (location 5N) and resistor R975 (location 7N).
Diagram <X>(2465B & 2467B) CHANNEL SWITCH & OUTPUT AMPLIFIERS
Remove wire W500 (location 9B).
M70856
EFFECTIVE SERIAL NUMBERS: 2465B B051240 and above
EFFECTIVE SERIAL NUMBERS: 2467B B010896 and above
DIAGRAM
CHANGES
Diagram <1(^ LOW-VOLTAGE REGULATORS
Change the value of resistor R1400 (location 5C) to 56 Q.
M73853
EFFECTIVE SERIAL NUMBERS: 2465B B055938 and above
EFFECTIVE SERIAL NUMBERS: 2467B B051041 and above
DIAGRAM
CHANGES
Diagram <W PROCESSOR AND DIGITAL CONTROL (SN B050000 & Above)
Change the value of resistor R2244 (location 3D) to 1.0 KQ.
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Tektronix 2465B Specifications

General

Bandwidth	400 MHz
Channels	4
Vertical Sensitivity	2 mV/div to 5 V/div
Maximum Input Voltage	400 V (DC + peak AC)
Display	CRT
Trigger Modes	Auto, Normal, Single
Time Base Range	500 ps/div to 0.5 s/div
Rise Time	875 ps
Power Supply	48 to 440 Hz
Dimensions	495 mm