HP 8642A Operating Manual page 383

S e r v i c e
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M o d e l 8 6 4 2 A / B
N o t e s :
1. Each module in the HP S642 has a nine digit module identification code. The first four digits comprise the
module configuration code. When servicing a module, note any changes that apply specifically to its module
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.
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