Tektronix 2465B Service Manual

Product: 2465B/2467B Service Date: 30 JAN 93 Change Reference: M70565 REV1
DIAGRAM CHANGES (cont)
Diagram
o
EADOUT
Remove resistors R2865 (location 4D) and R2830 (location 7B).
Add two 475 Q resistors R2742 and R2714, and two 0.1 [XF capacitors C2801 and C2802 (location 2M) as shown
below.
FROM
R2S32
[4M]
♦ "
R2742
475
CURSORS
■VW-
1
C2601
0.1
U2805-15
U2800-14
FROM
CR2621
[8P]
<*>"
R2714
475
DLYREF2
-vw-
T
5
C2802
0.1
Diagram
o
U2805-14
U2800-15
(2465B & 2467B) POWER DISTRIBUTION
Add two 0.1 \lF capacitors C2361 and C2611 to the +5VD line of J251 pin 14.
Add a 0.1 |1F capacitor C2441 to the +5V line of J251 pin 8.
Add a 0.1 |1F capacitor C2800 to the -5V line of J251 pin 4 as shown below.
1
J251 -4^
-5V
C2800
0.1
Change the value of capacitor C2965 (location 2B) to 33 (J.F.
Change the value of capacitor C2331 (location 4B) to 10 \lF.
Change the value of capacitor C2011 (location 5B) to 33 |XF.
Change the value of capacitor C2113 (location 8B) to 10 [IF.
Remove capacitors C2860 and C2870 (location 2C).
Page 2 of 3

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