Wavetek 188 Instruction Manual page 38

Indication: Sweep
(SWeep).
1 . Depress CONT
Extend SWPISTOP.
Check E48 for + 4V.
2. Depress SWP/STOP.
Check collector of 03. 4V peak ramp.
If ramp amplitude is
is
If ramp amplitude
4.
At SWP OUT check for period change of approximately 30
to 60s the TI M E control is rotated from full
as
check
At SWP OUT
5.
6. At E39 with STOP control full
control full CCW, ramp amplitude is av.
\
6-1 0
Table 1-11 . SWHP Circuit
Ramp problems.
or
Check
4V peak.
>
< 4V peak.
tor ramp period drift.
ramp amplitude is 4V peak, with STOP
cw,
"
Scans by ArtekMedia
ccw
ms
to full
cwo
20 1 1
=>
CorrectJve Procedure
U l .
a.
b. SW2.
U 1 , 03.
01 , 02.
02 , R22.
C4.
R1 2, SW1 , SW2.