HP 4328A - Page 71

K
CHECK
BAD- OSCILLATOR
TABLE 8-2
TO 8-5
CHECK WAVEFORM
A2 T P 7
A2
8
L
CHECKFOR
OPEN PROBES
(AND T302)
BAD- CHECK OSCILLATOR
TABLE 8-2
TO 8-5
CHECK PHASE
SENSITIVE
OK- AMPLIFIER
TABLE 8-6
TO 8-8
CHECK
POWER
BAD-SUPPLY
VOLTAGE
(+13V, -13V
NOMINALLY)
CHECK
BAD-MOTHER
BOARD
CHECK
WAVEFORM
OK- A2 T P, 9
A2 0
CHECK
OK- OSCILLATOR
TABLE 8-2
TO 8-5
CHECK
POWER
BAD- SUPPLY
TABLE 8-9
OR 8-10
CHECK WAVEFORM
A2 T. P 8
BAD-A2 0
AND MODULATOR
TABLE 8-8
CHECK WAVEFORMS ~
OK- A2 T .. P 12, 13
A2 CD 8
CHECK
WAVEFORM
OK-A2 T, P 14 -
A2 4D
CHECK
FLIP-FLOP
BAD-TABLE 8-4
AND PHASE
DETECTOR AN
DC
AMPLIFIEF
TABLE 8-7
NOTES-
TEST INSTRUMENTS REQUIF
OSCILLOSCOPE
VOLTMETER
(SEE TABLE 5-1)
INSTRUMENT TEST CONDIT!
SET RANGE SWITCH TO 1rr
DC VOLTAGE CHECK,
PROBES OPEN AND SHORT
(VOLTAGES IN BOTH
CONDITIONS SHOWN IN SCI
TO OBSERVE WAVEFORMS
CONNECT A PIECE OF COl
(AWG #12- #18) ACROSS Pl
AND ADJUST THE LENGTH
GET FULL SCALE DEFLE(