HP 83522A Service Notes page 151

CHANGE 3
This change replaces the A2 Front Panel Interface.
Page 6-5, Table 6-3:
Change A2 to HP and Mfr. Part Number 83525-60060, CD 2.
Page 4-6, Table 6-3:
Change A211 to HP and Mfi. Part Number 1251-5926, CD 3.
Add MC8,0160-3875, Qty 1, CD 3, CAPACITOR-FXD 22PF
2
5% 2OOVDC CER 0
+
30,28480,0160-3875.
Add A2Q4,1854-0477, Qty 1, TRANSISTOR NPN SI CHIP FT- 1.3 GHZ, 02037, SMCS1005.
Add MR26,0698-7229, CD 8, Qty 1, RESISTOR 511 1% .05 W
F
TC-O+ 100,24546, C3-118-TO-511R-G.
Add MR27,0698-7260, CD 7, RESISTOR 10K 1% .OSW
F
TC-0
+
100,24546, C3-1/8-TO-1002-G.
Add A2R28,0698-7205, CD 0, Qty 1, RESISTOR 51.1 OHMS 1% .O5W FTC-0
+
100,03292, C3-1/8-TO-51Rl-F.
Change the Qty for A2U2 to 2.
Change the Qty for A2U5 to 9.
Change M U 8 to 1820-1730, CD 6, IC
FF
TTL
LS
D-TYPE POS-EDGE-TRIG COM, 01295, SN74LS273N.
Change MU10 to 1858-0069, Qty 1, CD 1, TRANSISTOR ARRAY 18-PIN PLSTC DIP, 13606, ULN-2803A.
Add A2W3,8159-0005, Qty 1, CD 0, RESISTOR-ZERO OHMS 22AWG LEAD DIA, 28480,81594005.
Page 8-3 1, Figure 8-12:
Replace the FRONT Component Locations diagram with the A2 Front Panel Inte@ace, Component Locations
(CHANGE 3) diagram from this document.
Page 8-31, Figure 8-13:
Delete the REAR Component Locations diagram.
Note that the potentiometers R1, R4, R6, and R23 have been moved from the circuit side of the board and are now
mounted on the component side. Jl, 53, and U13 are mounted on the circuit side.
Page 8-3 1, Figure 8-19:
Change the A2 FRONT PANEL INTERFACE part number in the top left-hand corner of the A2 Schematic to
83525-60060.
Change the SERIAL PREFIX in the bottom left-hand comer of the page to 2205A.
Replace blocks A and G with the partial schematic P/O A2 Front Panel Interface, Schematic Diagram (CHANGE
3) fiom this document.
CHANGE 3