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HP 8110Α Service Guide
T
h
e
Functional
U
Λ i tS
F
igure 7-1 s ho w s the
b
asic functi on al uni ts in α fully fitted
instr ument .
7-2
F
unctional Description
Unit
Function
F
igure 7-1 . Th e HP 811 OA Functional
U
nits
The following is α list of the fun cti o nal units in α fully fitted
HP 8110 Α, together with α
b
rief note of t he funct ions they p erform :
P
ower Supply Uni t
Thi s
p
rovides all t he m ain supplies
n
eeded by the
in strument
MPU board
The Micro p rocessor co ntrol s t he ot h er fun cti on al
uni ts in the in strum ent
Ke yb oard
U
ser commands are
p
asse d to t he Mi crop rocessor
f
rom the Keyboard
Di splay board
The Displ ay
g
ives vis u al infor mat ion on t he w ay the
HP 8110Α has
b
een set up and wh at i t is doin g
P
eriod
b
oard
This uni t establi shes t he
p
er iod used wit h w ave for m s
generated in th e instrument
PLL board
Thi s
p
rovides an opt i onal v ery accu rate, stable cloc k
for t he in str ume nt
D
es ke w board
Thi s B oard is opti onall y fitted to instruments with
2 Outpu t Channel s .
I
t allow s t h e ou t pu t
f
rom
the
P
eriod B oard to be s pli t into t wo
p
ath s, each
capabl e of b eing delay ed to α
m
axi mum
o
f 30n s to
minimiz e inter-channel del ay (ske w ),
b
efore
b
e ing
passed to th e O u t put B oards
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