HP 654A - Page 68

Section VII
Model 654A
D
2
3
654A - B- 1820A
SHADED AREA SHOWN ON
SCHEMATIC NO. 1
4
5
A2
6
hp Part No. 00654-6 . 6502
Rev. A
A2 ASSEMBLY
COMPONENT LOCATIONS •
7
- C 3 5 -
e
-R48- - R50-
- 1R
R RR- 5 444C 5 7651 771 R- RR - R6 49
51 5:7 8
- RC R5 61 4-- --CR 19 5- 9-
-
R63- - R67-
- C23-
-- C2 4R-6 4
- R 6 0 - - R 6 6
- 7C9 -2 -6 ---- - CC C R2R 2 722 8 0°-
- R --
- R R 6-
- -R67 98r- 3 RR:7 71 2 -5 --
-C27- - C29- 16
• 1 5
- R
77 —•
- R 7 6 -
- R 7 3 -
R G C
CR L DSV R
11 CR R
1
C2 BI B2 A3 DI
B4 16 - - -
31 . D3
2 B2
Cl
P3 A3
DI
17. CI
32
3
C2 CI C4 . C3
' A2 18 . BI
33 AS
4 B2 DI
C3 .
BI 19
. A3 34
AS
5 A2
DI B3
C2 20 , . D3
35
AS
6
C3 A2
- - - CI
21 p2
36 AS
7 C3
D3
--- C2
22 C2 - 37.
AS
8 D4
AS
CI B2
23 . A2
38 A6
9 A3 AS A4
C3 24
A3 .
AS 39 A6
10
BI 135 C2
C3
25 A4 40
B5
II CI
D2 . C2
26 D2 B 1 41 - - -
12 BI
A2
135
27 C2 42
.I..
13 B3 D3
28
133 • 43
B5 '
14 BI
• • -
I 5 DI
" 30 Al -
P/O Figure 7-3. Balanced Amplifier, Meter and Leveling
9
7-6