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Model 5065A
Circuit Diagrams, Theory, and Maintenance
Page 6-23, Table 6-4, Option 001 (A5) Replaceable
Parts:
Change A5 (05065-6084) series number from 1904
to 1840.
Page 6-26, Table 6-4, Option 001 (A5A4) Replaceable
Parts:
Replace A5A4 (05061-6152) and all components
for this assembly with A5A4 Part No. 05061-6033
and components in Table 7-12.
A5A4 05061-6033 (1840) PL here
CHANGE C (Option 001 A5 Series 723)
NOTE
The following changes for A5 series number does
not affect the serial prefix number of the instru
ments with A5 added for Option 001 or 003. The
series number of the A5 module assembly may not
be the same as the instrument serial prefix number.
Page 8-33, Figure 8-13, A5 Schematic Diagram:
Change A5 from series 1904 to 1840.
Replace A5A4 schematic diagram with diagram in
attached Figure B for A5A4 P.N. 05061-6033
(SERIES 1840) circuit board assembly.
Replace A5A4 component locator illustration with
new illustration in attached Figure C.
Page 8-35, Figure 8-14, Part of A5 Schematic Dia
gram and
Page 8-37, Figure 8-15, Part of A5 Schematic Dia
gram:
Change A5 series number at top of diagram from
series 1904 to 1840.
NOTE
The previous A5A4 circuit board assembly used a
variable capacitor instead of the newer potentio
meter. The adjustment procedure is the same for
both assemblies.
Page 6-26 and 6-27, Table 6-4, Option 001 to 003
Replaceable Parts:
Change A5 module assembly (05065-6084) and
A5A2 (05061-6014) series numbers to SERIES 723.
Change A5A2C13 to 0140-0202 (15 pf); FXD MICA
15PF 5% 500WVDC; 28480; 0140-0202.
Page 8-35, Figure 8-14, Part of A5 Schematic Dia
gram and
Page 8-37, Figure 8-15, Part of Schematic Diagram:
Change A5 series number at top of both sche
matics to SERIES 723.
Page 8-35, Figure 8-14, A5A2 (05061-6014) Sche
matic Diagram:
Change series number at top of schematic to
SERIES 723.
Change the value of A5A2C13 from 10pf to 15pf.
Table 7-12. A5A4 Parts List
Reference
Designation
A5A4
A5A4C1
A5A4C2
A5A4IC1
A5A4Q1
A5A4R1
A5A4R2
A5A4R3
HP Part
Number
05061-6033
0140-0176
0131-0006
1820-0315
1854-0005
0757-0948
0757-0924
0757-0931
Qty
1
1
1
Description
BOARD ASSY: SWITCH
C: FXD MICA 100 PF 2%
C: VAR MICA 70-350 PF 175VDCW
INTEGRATED CIRCUIT
TSTR: SI NPN
R: FXD FLM 10K OHM 2% 1/8W
R: FXD MET FLM 1K OHM 2% 1/8W
R: FXD FLM 2K OHM 2% 1/8W
Mfr
Code
28480
28480
28480
28480
80131
28480
28480
28480
Part Number
05061-6033
0140-0176
0131-0006
1820-0315
2N708
0757-0948
0757-0924
0757-0931
7-58
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