HP 4262A - Page 243

Model 42624
Figure 8-43. A21 Keyboerd Control Board A
Signature Analyzer settings:
START A21U2pin7 _/—
STOP A21U2 pin T
CLOCR A21U2pin14 /"
Window Test +5V 03U9
Nodes: @
Signature Analyzer gettings:
START A23PAS8 s
8TOP A23PAS _
CLOCK A22TP2 -
Window Test +5V 72A7
Nodes: (1) (B @
uz4
Signature Analyzer settings:
START A23U1 pin34 _/—
STOP A23U1 pin34 \_
CLOCK A22TP2
Window Test +5V 9653
Nodes: H@ D @ @ @
(OJSIORORORC)
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INT acK —paL
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l/(«fl“‘"\;g:
Section VI
Figures 8-43 and 8-44
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10 g TRE 0
Figure
8-44.
A21
Eeyboard
Contrel
Board
Assembly
Schematic
Diagram,
8-89