Removal and Installation Procedures
TDS 520A, 524A, 540A, & 544A Service Manual
6Ć31
*0 .#*0' #1 *) /# Access Procedure !*- *$)" )4 +-* 0- $)
/#$. *'' /$*) # +-* 0- . !*0) # - '$./ $) *- - +- . )/ !*''*2
H A15 Attenuator Assembly
H Fan
H A14 D1 Bus and Power Cables
H A23 SerPar Board
H A29 Video Trigger Board
H A11 Processor/Display Board
H Top Cover and Board Brackets
H RearĆPanel Cables
H A10 Acquisition Board
H Rear Chassis
A15 Attenuator Assembly
Assemble equipment and locate modules to be removed:
1 #)4 .- 2-$1 - 2$/# .$5 6 *-3R /$+ / (. )
*/ /# (*0' . /* - (*1 $) /# '*/*- $"-( OuterĆ
Chassis Modules $"0- 6 +" 6
Orient the oscilloscope: / /# *.$''*.*+ .* $/. /*+ $. *2) *) /#
2*-& .0-! ) $/. !-*)/ $. !$)" 4*0
Remove the Attenuator Assembly:
)+'0" # *! /# !*0- $)/ -*)) / ' . /#/ *)) / /# /6
/ )0/*-. /* /# ,0$.$/$*) *- !-*( $/. %& *) /# ,0$.$/$*)
*- $"0- 6
)+'0" /# -$*) $)/ -*)) / ' /#/ +'0". $) !-*( /# /6
/ )0/*- / $"0- 6
*2 - (*1 /# !*0- .- 2. /# # . *! 2#$# 4*0 3+*. 2# )
4*0 - (*1 /# // )0/*- +) '
*(+' / /# - (*1' 4 '$!/$)" /# // )0/*- .. ('4 *0/ *! /#
!-*)/ .0+) ' 1 -. /# +-* 0- /* - $)./'' - !0' /* +'0"
# ' $)/* $/. *-- / %&7 $"0- 6 .#*2. /# *-- /
*-$ )//$*)
Reinstallation: * $) - 1 -. *- - .0./ +. - 1 -.$)" /#
- (*1' $)./-0/$*). $) # .0./ + /* - $)./'' /# .. ('4 # ) .
/# !*''*2$)" +-* 0- . $) /# *- - '$./ /* *(+' / - .. ('4 *!
/# *.$''*.*+
Procedures for
OuterĆChassis
Modules
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