Wavetek 145 Instruction Manual page 43

VCG CHECK
PLACE ALL CON-
1----------...aiTROLS IN INITIAL*
POSITIONS
REMOVE ANY
INPUTS TO
VCG IN BNC
+15VdcTOAPPROX
+150mVdcATE4AS NO <
DIAL IS ROTATED
' > - - - - - - - - - 9 1
FROM 2.0 TO .02
7
~Vl=C::
A.~~
0 Vdc
±5
mV
<
AT IC1-2 AS
DIAL> ►-N_O
_ _ _ _ _ _
IS ROTATED**
►I
?
XYES
-5 TO "'0 Vdc
NO
<
AT IC1 -6 AS DIAL)
IS ROTATED - - - - - - - - -
►I
FROM 2.0 TO .02
8 - - - - - - - 1 : Y E S
+10 TO +14.95 Vdc
AT IC4-3 AS DIAL IS
<
ROTATED FROM
2.0 TO .02
7
~ E S
-10 TO -14.95 Vdc
NO
AT IC5-3 AS DIAL IS NO <
ROTATED FROM
2.0 TO .02
?
~ E S
+10 TO +14.95 Vdc
AT EMITTER 04 AS
<
DIAL IS ROTATED
FROM 2.0 TO .02
7
J:ES
NO
CHECK -10 TO -14.9!:> Vdc
CR6 - CR9 & CR26 ...... ________ Y_ES---<' AT EMITTER 06 AS NO ..._
INTEGRATOR ..._ DIAL iS ROTATED
,,,,,"'>-----------t.,~
CIRCUITS FROM 2.0 TO .02
7
.....,;..,--
*NORMAL/DOUBLE/DELAY SWITCH TO NORMAL, FREQ VERNIER TO CAL,
DIAL TO 2.0, ALL OTHERS TO 12 O'CLOCK
**USE SCOPE AND HIGH IMPEDANCE PROBE FOR THIS AND SUBSEQUENT
VCG MEASUREMENTS
Figure 6-3. VCG Checks, Generator Board
6-8
CHECK
DIAL&E3-E5
\AJ!R!NG
CHECK
IC1 CIRCUIT
CHECK
IC1 CIRCUIT
CHECK
IC2, 01 & 02
CIRCUITS
CHECK
IC4, 03 & 04
CIRCUITS
CHECK
IC5, 05 & 06
CIRCUITS