Agilent Technologies 655 A Series Service Manual

Change Connector, J101, from P/N 1252-2047 to P/N 1252-0268.
Change Screw (Qty 2) M3 x 0.5 mm P/N 0515-0911 from REF. Clevis to REF. J101.
Change Nut M3 hex w/lock washer from REF. J101 to P/N 0535-0031.
CHANGE 15
In Tables 5-5, 5-11, and 5-12:
Change Q201, 203, 207, 301, 303, 305, and 307 to Agilent p/n 1855-0840.
CHANGE 16
These units have a through-hole A2 GPIB board assembly. The through-hole assembly is the same as the
newer surface mount (SMT).assembly functionally and electrically. The only changes are in the size of the
assembly, the through hole components and the pin-out numbers of some of the through-hole components.
The through-hole board GPIB assembly is documented in Table 5-9B.
CHANGE 17
In Table 5-8:
Change F800 to 5A, Agilent p/n 2110-0699.
CHANGE 18
In Table 5-9:
Change U121 to LM309K, Agilent p/n 1820-0430.
CHANGE 19
In Tables 5-5, 5-11, and 5-12:
Change Q202, 204, 208, 302, 304, 306, and 308 from p/n 5060-3314 back to p/n 5060-3315. NOTE: Do not
mix the 5060-3315 FET assemblies with the 5060-3314 FET assemblies in the SAME instrument.
CHANGE 20
In Tables 5-5, 5-11, and 5-12:
Change Q202, 204, 208, 302, 304, 306, and 308 from p/n 5060-3315 to p/n 5060-3314. NOTE: Do not mix
the 5060-3315 FET assemblies with the 5060-3314 FET assemblies in the SAME instrument.
CHANGE 21
In Table 5-7:
Change Y501 to 12 MHz, p/n 0410-2109.
CHANGE 22
In Table 5-6:
Delete RFI Strip (ref Cover top), p/n 0160-0895.
CHANGE 23
In Table 5-7:
Change CR701 to CR700, p/n 1884-0349. Also change D691 to D690, p/n 1901-1182 (Agilent 65/6655),
p/n 1901-0317 (Agilent 1901-0317). Also, for Agilent models 65/6655A only, change C418 to p/n 0160-
0168.
CHANGE 24
In Table 5-4:
Change Knob (ref RPG) to p/n 0370-1091. Change Optical encoder to p/n 0960-0822. Change PCA Keypad
to p/n 5040-3464.
In Table 5-6:
Change G1,G2 to p/n 0960-0822. Delete PCA Keypad, p/n 5063-3407. Change Knob (A3G1,A3G2) to p/n
0370-1091.
In Table 5-10:
Change U4 to p/n 5080-2208.
CHANGE 25
In Table 5-11:
Change F201-204 to 0.125A 125V, p/n 2110-0671.
In Table 5-12:
Change F301-304 to 0.125A 125V, p/n 2110-0671.
172 Appendix A

Agilent Technologies 655 A Series Specifications

General

Brand	Agilent Technologies
Model	655 A Series
Category	Power Supply
Language	English