HP 54501A SERVICE
P/O SYSTEM BOARD ASSEMBLY
RESET/
PRESET
20 MHz
CLOCK
DECODERS
BEEPER/
CLICKER
ADDRESS
POWER SUPPLY ASSEMBLY
INTERFACE CIRCUITS
DISPLAY
Figure 6-3. HP 54501A System Control Block Diagram
J950,
i
J9511
KEYPAD/RPG
.
4:4
I
J952-
ON
HP-IB
'
1
i
DATA
1
TIMING
{
{
i
CON
LOGIC
TROL
ACQUISITION
I
(TCL)
I
i
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