User manual

Adjustment Procedures
TAS 455 and TAS 465 Service Manual
5Ć11
 2(-& 3'$ $-$1 + 41/.2$ -.! #)423 3'$ #(2/+ 8 %.1  3(,$
, 1*$12 /$1  #(5(2(.-2 .5$1 3'$ "$-3$1  #(5(2(.-2
! $+$"3 Done 6'$- #)423$# Cal Passed ,$22 &$ //$ 12
 $+$"3 Done 3. $7(3 3'$ 1.43(-$
 (2".--$"3 3'$ 3$23 2$34/ %1., 3'$ .2"(++.2"./$
 % 8.4 #. -.3 (-3$-# 3. /1."$$# 6(3'  "3.18 $13(" +  1$/+ "$ 
 3. +."* .43 3'$ " +(!1 3(.- 1.43(-$ '(2 )4,/$1 .-+8 6.1*2
6(3' %(1,6 1$ 5$12(.-
2.10 -# !.5$
CAUTION
To prevent accidental loss of calibration, be sure the calibration
lockout jumper (J205) is in place. If J205 is not in place, erroneous
calibration constants can result if the calibration routine is accidenĆ
tally invoked and not properly completed.
Factory Vertical Cal
Equipment Required: -$  " +(!1 3(.- &$-$1 3.1 (3$,  .-$ /1$"(:
2(.- ". 7( + " !+$ (3$,  -# .-$ #4 +:(-/43 ".4/+$1 (3$, 
Prerequisites: .6 1$04$-"8 43/43 .,/$-2 3(.- #)423,$-3 -# $+%
 + .1(9.-3 + #)423,$-3 /1."$#41$2
NOTE
To enable factory calibration on oscilloscopes with firmware version
2.10 or above, remove jumper J205 (CAL-DIS) on the CPU board.
(See Figure 5Ć17 on page 5Ć22 for the location of J205.) If you do
not remove this jumper, the message See manual to enable FactoĆ
ry Cal" appears when you select the factory calibration routine.
Firmware versions below
2.10 do not have the calibration lockout
feature and the factory calibration routine can still execute with J205
installed.
 1$22 3'$ UTILITY !433.-