HP 6268B - Page 74

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— COMPONENT SIDE
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SOME CIRCUITS ON THIS CIRCUIT
BOARD ARE CONNECTED DIRECTLY
TO THE INPUT AC POWER LINE.
EXERCISE EXTREME CAUTION WHEN
WORKING ON ENERGIZED CIRCUITS.
NOTES:
1. THE FIXED AND VARIABLE
RESISTORS SHOWN IN THE
"ZERO ADJUST" SECTION OF
THE BOARD ARE NOT INCLUDED
IN THE STANDARD INSTRUMENT.
THEY ARE SUPPLIED IN OPTION
020, 021,022 AND 040 INSTRU¬
MENTS ONLY.
2. Rl OMITTED IN OPTION 020,022,
AND 040 INSTRUMENTS.
3 R2I OMITTED IN OPTION 021,022,
AND 040 INSTRUMENTS.
_CURRENT
ZERO
CURRENT
PROG
VOLTAGE
ZERO
.VOLTAGE
PROG
Figure 7-7. A1 Board Component Locations
7-4