Wavetek 145 Instruction Manual page 45

GENERATOR OUTPUT
DISTORTED, CLIPPED, OFFSET
PLACE ATTENUA-
TION VERNIER
CCW, DC OFFSET
OFF & ALL OTHER
CONTROLS IN INI-
TIAL* POSITIONS
8 - - - - - -
CHECK
OUTPUT ATTEN,
FUNCTION OUT
BNC WIRING, EX-
TERNAL CABLE &
TERMINATION
YES
P1-9 +24 Vdc
<
P1 -8 -24 Vdc "'-.,__NO
~ 7
P1-7 -15Vdc
~
Pl-6 +15 Vdc
ALL FUNCTIONS
GOOD AT WIPER
<
SW4-C (WHT/ORN
WIRE) WHEN SW4
ROTXT D?
YES
ALL F NC IONS
YES
CHECK
TRIANGLE BUFFE
GOOD AT JUNCTION NO
<R271 & R185 WHEN
> - - - - - - - - - - - - - - - - r 1
SW4 ROTATED
YES
TURN ATTEN
VERNIER CW
CHECK
FUNCTION
SELECTOR
CIRCUIT
CHECK
PREAMP CIRCUIT
NO
CHECK
>-----------.-------t~UTPUT
AMPLI Fl ER
ALL FUNCTIONS
GOOD AT JUNCTION >-N_o _ _ _ _ _ _ _ _
~
14------<..
R224 & R226
?
-........./
~NORMAL/DOUBLE/DELAY
SWITCH TO NORMAL, FREQ VERNIER
TO CAL, DIAL TO 2.0, ALL OTHERS TO 12 O'CLOCK
Figure 6-4. Generator Output Checks, Generator Board
6-9