88
Agilent L4532A/ 34A Service Guide
5
Service and Repair
Removing the Rear Panel
The r ear pan el mu st be r emoved befor e you can r emove eith er t he d igit al
or car r ier boar d. To r emove it:
1
Remove all cables fr om t he exter ior of t he in str umen t, an d r emove t he
cover (see
Removin g th e Cover
on p age 82).
2
Remove th e two 14 mm n u ts (wit h ser r ated met al gr ommets) fr om t he
an alog board BNC con n ect or s.
3
Remove t he fou r 14 mm n u ts (wit h ser r ated met al gr ommets) fr om the
digit al boar d BNC con n ector s.
4
Remove t he five # 10 Tor x flat- head scr ews holdin g t he r ear p an el to
t he chassis, an d r emove t he pan el.
Step 4
Step 4
Step 4
Step 4
Step 4
Step 2
Step 3
To r ein st all t he r ear pan el, r ever se t hese st ep s.
Replacing the Digital Board (L4532A only)
The an alog boar d an d r ear p an el mu st be r emoved befor e you can
r emove th e digit al boar d. To r emove it:
1
Remove th e an alog boar d (see
Rep lacin g an An alog (Inp u t) Boar d
on
p age 87.
2
Remove t he r ear p an el (see
Removin g t he Rear Pan el
on p age 88).
3
Discon n ect t he 12 V cable from th e digit al board .
4
Remove t he 3/ 16 in ch
an alog board st an d off an d flat met al wash er
fr om th e d igit al board .
5
Remove t he seven # 10 Tor x rou n d head scr ews h oldin g t he digit al
boar d to t he chassis.
6
Gr asp t he d igit al boar d by t he ed ges, avoid in g t ou chin g electr ical
compon en ts or tr aces on t he board . Pu ll t he d igit al boar d to t he left
(or ien t ed as shown below) t o disen gage t he board 's en d con n ect or
