HP 6960A - Page 26

AI
A4
AS
J2
+
Section V
WHT-VIO
WHT - BLK- VIO
...
R35
1300
-6.8V
."
J
0
BLK
CRI8
~ r CRI9~ ~
Figure 5-4. Model 6960A Circuit Diagram
;;:
~C4
20
• R42
~ 10K
cS
HT
-
RED
A MI
-f1t1,4-
WHT -BLK-RED
+6.8V
R33
10K
+ 1.10 V
+ _~ few I
:::"C7 ~ ~
20 10K 0---
[
VOlTAGE
ADJUST
WHT-BLU
J
A3
R31
100
R25 LJ----I-----4~--"---"'N~---oCll:;- A2
·2700 -0.03V
~
GJ
...
R20,
~cw ;
C8
0-
- -.., ;::: ~
~CR22
10K
o VOLT - METER
150
~
~
I
I
...
CURRENT
ADJUST
LIMIT
----
ADJUST
~
El
I
...
~
__ J
REO
.~RI8
-S
: 33K
J
AMMETER
ADJUST
-6.8V
j
R7
10
R'B
1.8
R9
1.8
.
RI3
220
RIO
1.0
...
• R41
• 270
R22
1
C6
10
LJ
'1+
n
+ l5V
~0
R21
250
R39A
10
R398
10
R27
1000
R29
300
L-- ..... .- -0.35V
~"'WHT
/
(
I
I
I
ICURRENT I
~ILlMIT (mA)
I
I
I
~
\
~
1\;" ] ,WHT-VIO
R30
.~33 -+- .. - _ 0.03V
R32
~15_0 ---.- + 1.5 V
, ~CRI6
~. CRI7
RI9
390
ORN
S2C
0--
BLU
-0.15V
DIFFERENTIAL
AMPLIFIER
I
07.08
\.- ...... ---...----~~---------- ... - ... 6.8V
I
I
I
I
I
I
""
I
I
""
I
i
I
I
T
I
R6
I
360
I
CURRENT R 14 C5
AMPLIFIER" + .,..... IOOO...,.,., __ -j<t-9't---,
05 -...... Ir
R5
, 360
RI5
390
-0.4V
R34
430
~
: RI2 SERIES ~~CR20
• 300 RF.GULATOR Z
04
-0.35V
*C9:::~ R26
0082 6.8K
+17.3V
\
.... 11.0 V
~~~K ~~CR21
COMPARISON ~
+ 0.5V AMPLIFIER
06 -&6V
+11.2V
L--~--------.+_----_t_------------.- - 6.8 V
, R24
VOLTAGE 33K
RII ~ AMPLIFIER -0.02V
1000 b 03 r:-~'
l- __ ---4\l---=0~.7..:.V_+_6_.8_V __ ~(n\ e ~~~
~ LOAD 0
.. REGULATION
+1.5 V ADJUST - 0.03 V
-I4V
j
-14V
• R37 ~ RI7
• (SHUNT)
> 15 K
SERIES
REGULATOR +17V
02
+;;:~2 R3 ~II
1000 • 1000 1 P'I
SERIES -6.5~~
REGULATOR - 0.7 V
01 ~- __ -+- ___I
+ C3
;::~ IoR4
1000 :
1000
R38
i
f
(SHUNT)
L -J,... .....- __ -4. .... -14V
+ CI
;;:~500
RI
, 3300
WHT-
ORN-
GY
WHT-ORN-GY
A
R2
7 3900
CR5 CR6 ~--+- ..... _- ....... ----- ..... CR .. ~.lt-'12'"'t
~ CR4
WHT-BRN-GY _
5 /iCRO
21VAC r'~./
6 IC~~8
WHT-
BRN -
L-- -+----.j~-_4_-,
GY +12.4
i
1,8V 0.6AI
__ S2 (SHOWN_'~ 36V ~SITI~)_ _ _ _ _ -.=r J36V 0.3AI
-------+.--W>v-----------,
S2B
WHT-RED-G~
(
~ 21 VAC
r
18
J
WHT-RED-GY rr
20VAC
10 WHT- BLK
.
~ 20 VAC
III ~2
GY
OSI
~
"
R36 WHT-YEL-GY
33K I
WHT-BLK-GY
CI -C9
CRI-CRI4,CRI6-CR22
DSI
FI
JI,J2
MI,M2
PI,P2
01-08
RI-R42
SI,S2
TI
WI
GY ~
"'-'---<1 WHT-GRN-GY 3
2
..0---'---0--, I
.~
~
,I
I
I
NOTES
I. RESISTANCE IN OHMS, I
CAPACITANCE IN MICROFARADS • •. 1
2. VOLTAGES MEASURED WITH
RESPECT TO -S AT 36V -O.3A.1
3. *AVERAGE VALUE SHOWN.
FACTURY SELECTED. I
4. 0 EXTERNAL CONTROLS,
~ INTERNAL ADJUSTMENTS. I
5. TRANSFORMER CONNECTIONS I
FOR 1I0/220V OPERATION.
USE TERMINALS 2 AND 4 I
FOR 1/5/230 V OPERATION.
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I
I
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I
~
REFERENCE
DESIGNATIONS
5-9
Jv\ode I 6960A