HP 8642A Operating Manual page 518

Synthesized signal generator
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Serv i ce
Model
8 6 4 2 A / B
N o t e s :
i. Each nodule in the HP 8643 has a nine digit module identification code. The first four digits comprise the
nodule configuration code. Mhen servicing a nodule, note any changes that apply specifically to its nodule
configuration code.
2. All circuit boards are manufactured using a hot air leveled process. These boards require extra care when
replacing components. Refer to General Service Information, paragraph 8-3.
A2J1
CABLE PLUG
t i S V d c ± i v
+ 15VdclflEF)
±1V
-15Vdc
19 20
MSVdc ±1V
-5Vdc ±1V
+5Vdc ±1V
G N D
HOD HI/LO
HOD HI
D7
OS
D3
01
INT
S c h e m a t i c G e n e r a l
I n f o r m a t i o n
8J- 112

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