HP 1317A Operating And Service Manual page 71

Model1317A
Table 8·3. X·axis Preamplifier Measurement Conditions
DC VOLTAGE MEASUREMENT CONDITIONS
1.
Disconnect all inputs from X" Y', and Z·INPUT con·
nectors.
2. Adjustments:
Z·axis GAIN (A5R20) ........................ fully cw
Z·axis BAL (A5R65) ..... Equal voltages at emitters of
A5Q3 and A5Q4
3. Control settings:
POSN X .............. .............. ... ..... Centered
POSN Y ...... ..... ......................... Centered
GAIN X .. ........ .. . .... ....... ... . ......... fully cw
GAIN Y ..................................... fully cw
INTENSITy ............... +7.0V at Test Point A5TPI
~
X INPUT BOARD
EMITTER
FOLLOWERS
091010
R63
56
+ 15VA _ -"JVIr-O..------..
- 15V
"---0 8
R90
56
R68
2740
R70
2740
L..---O 8
15 VF
+
VOLTAGE
SENSORS
014/015
R69
1000
- 15VF
+15VFC
+
R76
180K
+0.84V
+0.84V
C19
I047 UF
Rn
56
OUTPUT
PREAMPLIFIER
0111012
+6.3 V
, 7.0V
C20
150
+15VF
+
t
15V
C22'
R82
7.5 150
+15VA
~
~
R64
100
+15 VA
+
R87
1000
CR 17
CR 18
r.=--~
II
P/OA711
Service
0-7
5 )-NC
1 P/OXAJI
PHOSPHOR
PROTECT CONTROL
016 / Q17
R78
+84V
, 15VA
~
____
~IM~
________
~~ + 1~4~ .8~V
__
+-____
~
____
~
____________________
~ ~
!;
R81
56
+15VFC
017
+6.3V
R83
150K
+l. OV
R91'
8250
R84
150
+15VF
~
CR 15
DEFLECTION
CURRENT
SOURCE
013
L-.....:2~r---4-----vvf\r----
0 3
R89
56
CR 16
- 15V
1317 A-S-002
: L __
PARTS ON THIS SCHEMATIC
PIO Al
C1622
CR5·18
Q9 ·17
R6291
OELETEO: A1CR19
2
Figure 8·6.
X·axis Amplifier
8-9