HP 7901A Operating And Service Manual page 82

Table of Contents

Advertisement

7901A
0
TPI
C BAL
GAD
A20
G
~
EJ
N
(Xl'"
0
0::"0::
'"
ua:u
a:
~
1901-5
A SAL
TP2
Al
N
.r
0::
0::
G
0
AGAIN
0
TP3
A5
B
~
.r
G~oo
0::
U16
~ ~
U
I
-(OLD
Ma:a:
a: UU
I
'"
a:
-M
Ua:
..... ellN
(Xl
.r.roo
LD
0::
a: a: a:
15
1111111111
A
0
0
0
0
TP4
TP5
TP6
TP7
A
CUA
TEST INPUT
TACH
COM
X
EJ
EJ
EJ
- r---c:o
N
en
~~
"'-
<Ow
I"-
en
an
a: c:::
r---
(0
~"'-
.....
LDLD
It')
LD
0::
uu
0::
0::
0::0::
0:: 0::0:: 0::
0::
~
X
X
fri
;:?
e~e~
e~e(oM-N~-
~~~~
a:
0::
06
a:
05
~~~~5u a:a:o::u
C20
I
c:J
~ ~
C14
C15
C16
;::
~
c:J
a:
rrnlI]
07901-60006
A-1151-42
1
15
1111111 111111
S
A
Figure 5-30. Encoder PC Assembly A9, Parts Location Diagram
.,.
en
0::
ENCODER 107901·60006, SER IE.;.S.;.;12;.;.1.;.:.1 1 _ _ _ _
1
-
FRoMA~6-3~li~~TA~C~H~I~N------------------------------------------------------------
____________________________________________________
~
FROM
A~5-9 ~ ~
I
I
I
I
I
I
I
I
FROM
A~2-2
----t-<
6
I
I
I
I
I
I
I
I
I
FROM
A~2-3
--+-<
~
I
I
I
FROM A5J5-7
~ ~
FROM XA78·F
~
F
I
I
FROM XA11B-H
-+-<
~
I
I
I
FROM XA7B-E
--+-<
E
I
I
I
(
I
I
I
I
(
J
....
(
I
/
I
(
+12V
ABAL
R2
R3
AGAIN
ClJ
0
1M
383K
R5
Al
5000
20K
Cl
100 pF
-12V
,~.
A6
A CHANNEL
lOOK
~~
+12V
1"
+12V
+
C18
TP3
ri""
4~
B
R1S
560K
+
C19
r:
C2
-12V
62 pF
-12V
,~.
B CHANNEL
R17
4700
~~
SHIFT OUT
NOT CONN ECTED
VELOCITY COMMAND
SHIFT IN
NOT CONNECTED
R4
5000
¢
f A
R31
1000
R8
4700
R12
22K
+5V
R39
U10C
Cl1
4700
5
6
A
0.001
01
R13
R40
4700
6800
~
+5V-
~7
R14
4700
Ul0A
1
2
A
(J
+5V
R19
C12
R41
470
£ 3
4700
-12V
0.001
-;lCl0
R18
22K
CRI
~10
R43
6800
~7
u
R59
4640
~
t
CR9
R38
100
t
CRlO
R42
100
4
U18B
~
! - I
FROMXA11B-M~U~(--C~Y~L~IN~D~E~R~M~A~TC~H~------------------------
________________________________________________________________________________________________________ __
! I
FRoMXA10B-C~~~(--~SE~R~V~O~IN~H~I~BI~T------------------------------
______________________________________________________________________________________________________ _
! I
FROMXA11B-J
----L-(8~(--~CA~R~R~Y--------------------------------------------------------
________________________________________________________________________________ __
~A9A
12 (
I
TEST SERVO INHIBIT
FROMA~4-23
~N~--~~~~~~----------------------------------------------------------------------------------------------------------------------------------
I
+12V
CBAL
o
R22
1M
R21
560K
TP2
I
I
R20~~--~~~p_--~AA~--------~
20K
I'~
FROM A5J5-5
-+-<
~ ~-"-C.;.CH"'A.;:.N;,;.N;;;E.;;.L
___________________________________________________ ......
!
I
FROM
A~2-4
-r
~ ~(-----'+5::.;V----1P-------~It--------I.---------I-.--------"1Ir-t
..
~
+5V
I
+
C17
C20
C14
C15
C16
!
1
6
.
s
1°.
1
rom
1
0
.
01
1
0m
FROM
A~2-1 ~
1
~(----=G~R::.D----~-------~
....
-------~------------4I~>----------<~~-
•• ~~1D
I
C3
100 pF
+12V
+12V
--'Vw--.....
----"'i
CR2
3.83V
CR3
3.83V
R27
5100
R30
220K
Ul0F
13
FROMXA108-F~6~(--~S~EE~K~H~O~M~E------------------------------------------
__________________________________________________________________________________________ ___
I
I
RETRACT
FROMXA10B-A~~f(--~~~----------·------------------------------------------------------------------------------------------------------------------------------
FROMXASA-5
~Ef(--~IN~T~E~R.;.LO::.;C;,;.K~L;,;.IN~E~----------------------------------------------
__________________________________________________________________________________ __
I
DWG REV A

Advertisement

Table of Contents
loading

Table of Contents