Service and Repair
5
Agilent L4532A/ 34A Service Guide
91
Replacing the Carrier Board
The an alog boar d(s), d igit al boar d an d p rocessor boar d mu st be r emoved
befor e you can r emove t he car r ier board . To r emove it:
1
Remove t he p rocessor an d digit al boar ds (see
Rep lacin g t he Pr ocessor
Boar d
on page 86,
Rep lacin g t he Digit al Boar d (L4532A on ly)
on
p age 88 an d
Replacin g t he Digit al Board (L4534A on ly)
on page 89.
2
Discon n ect t he p ower sup p ly (6- p in ) cable from t he car r ier boar d.
3
Discon n ect th e 12 V cable fr om th e car r ier boar d if still att ached (it is
shown discon n ect ed in th e ph ot o below, as it was r emoved when
r emovin g t he d igit al board).
4
Discon n ect t he t hr ee fan cables fr om th e car r ier boar d.
5
Discon n ect t he p ower switch cable fr om th e car r ier boar d.
6
Discon n ect t he d isplay cable fr om the car r ier boar d.
7
Remove th e four 3/ 16 in ch
pr ocessor boar d st an doffs fr om t he car r ier
boar d.
8
Remove t he th r ee # 10 Tor x roun d head scr ews hold in g t he car r ier
boar d to t he chassis. Gr asp t he car r ier board by t he ed ges, avoidin g
t ou chin g electr ical comp on en ts or tr aces on t he board , an d lift t he
car r ier board u p an d ou t.
Step 3
Step 6
Step 4
Step 8
Step 2
Step 8
Step 5
Step 8
R
e
a
r
P
a
n
e
l
Step 7
To r ein st all t he d igit al boar d, r ever se t hese st ep s. Wh en settin g t he
car r ier board back in t he chassis, fir st align t he USB r ecep t acle with the
ch assis, t hen r ein st all t he st an d offs, scr ews an d cables.
