ADJ USTME NTS
MODEL 3562
3-14
3-9 INPUT DC OFFSET ADJUSTM ENT
Description:
This procedure centers the offset DAC on the ADC board to allow it maximum correction
range in either the positive or negative direction.
Equ ipment Required:
Extender board (part of kit 03562-84401 ) . . . . . . H P 03562-66542
Procedure:
CAUTION
Instrument power should always be turned off before any boards
are remo ved or installed. Failing to do so causes circuit failure in
most cases.
1 . Disconnect the line power cord from the rear panel of the HP 3562A.
2. Remove the Input board (A33)
to
be adjusted and place it on the extender board. Be
sure to reconnect the coax between the input board and its accompanying ADC board.
3. Remove the ADC board of the same channel as the input board under adjustment
and ground TP400. Replace the board in the instrument.
4. Short all three pins of the input connector A33J300 and
A33TP501
together. Since the
center pin of the input connector is grou nd, this grounds the input signals and TP501 .
5. Reconnect the line power cord and tu rn the power switch ON.
6. Press the following keys in the order given:
RANGE
I N PUT
C O U P LE
x
·
. . .
- 51
. . . . dBVrms
·
. . . Select dc cou pling
·
. . . (Turn on the X marker at frequency having the largest
magnitude; in this case it should be 0 Hz)
To adjust channel two, also press:
MEAS DISP
·
. . . POWER SPEC2
7. Adjust A33R21 2 for a marker ampl itude read ing of less than - 85 dB on the H P 3562A
display.
8. Remove the ground connection from A33TP501 .
Содержание 3562A
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Страница 149: ...IODEL 3562A R1 0 A22 Board Location Key Figure 3 1 7 Analog source component locator A30R 1 0 ADJUSTMENTS 3 21 3 22 ...
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Страница 213: ...r A1 a pQWERSuP PLY I 03562 66518 REV A REV 8 8MPOUT 58 58 FRONT REAR P ANEL ii O N ...
Страница 214: ... C401 8S1 15ISI t 1 J400 ...
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Страница 237: ...Sample Clock SAMP DS DATA oe _ _ _ _ _ BUS NOTE FULL SPA BASi BAI MODE ...
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Страница 259: ...WRITEL A22L l cc E Vl 8 MHz A23L ASL Inverting A1L A21 L D rivers r ...
Страница 305: ...c c I O Sequencer S r J Sequence Decoder ...
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Страница 321: ... From Digital Source From Digital Source Serial Data Serial Data Sinewave Interface Front End Interface 3 S D D ...
Страница 324: ...EXT TRIGGER TRIG 1 TRIG 2 CALTRIG CNTLD COMI W CNTCLK LDTRGL RESETL ...
Страница 327: ... RH r I N EXT BUFFER SAMPLE _ _ _ IN ...
Страница 425: ...L_ FAULT ISOLATION Instrument Operational Figure 7 1 3 SELF TEST Sequence MODEL 3562A STOP Enter failure in r t be 7 61 ...
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