Fluke 732B - Page 115

Schematic Diagrams
7
7-7
Figure 7-4. A4 Oven Control PCA
k37f.eps
100K
200 ohms
1
180
1
Q401
MJE181
100
1000PF
1
1M 402K 1M 10K
8.823K
1K
6.2K
14.1K
.22
1
200 ohms
732B-4H02
I
V
10V BIAS LO
WW
10V SENS LO
REF
10V SENSE HI
10V BIAS HI
10V HI OUTPUT
TEMP 1A
TEMP 1B
V+
GND
1
RT401
100K
100K
5.3MA
CR402
5.3mA
CR401
52.3K
1
1
10
C401
41.3K
52.3K
.22
.22
1
TL062
3K
6K
7.5K
15K
30K
60k
75K
150k
300K
TL062
8.
TO FLEX CIRCUIT ’A2’
TO A3 PCA
(E1-E13 GO TO A6 PCA)
MOUNTING HOLE TO TIE OVEN BLOCK
TO COM1.
4.
6.
4.
7.
7.
4.
6.
7.
11
1514
8
4
7
5
6
8
4
4
3
9
8
7
6
5
4
3
13
12
4
12
155
4
613
9
10
14
3
8
11
7
10
9
8
7
6
5
4
3
15
16
25
22
21
23
20
19
24
18
11
12
13
17
14
1
1
1
1
1
1
2
2
2
2
2 3
C405
Z401
U401
R405
WW
732B-4H01-2
HR3
U401
C403
C402
C408
Z401
734A-4R03
Z401
HR2
732B-4H01-1
R412
WW
R402
R404
WW
WW
R403
R407 R408 R410R409
R411
HR1
P406
E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E24
E9
E2
E13
E1
E8
E7
E4
E3
E5
E6
E11
E12
E10
E25
WW
R401
25V
732B-4H01-2
HR3
-6V
+11.5V
10V_ BI AS_LO
BIT_7
BIT_8
BIT_6
BIT_5
BIT_9
BIT_10
BIT_11
BIT_12
BIT_13
10V_ADJ_LO
10V_ADJ_HI
1,018V_LO
10V_SENSE_LO
10V_INPUT_HI
10V_SENSE_HI
10V_BIAS_HI
10V_HI_OUTPUT_STAGE
TEMP_1A
TEMP_1B
TMEP_SENSE
732B-1004
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