Wavetek 145 Instruction Manual page 44

GENERATOR OUTPUT
DISTORTED, CLIPPED, OFFSET
PLACE ATTENUA-
TION VERNIER
CCW, DC OFFSET
OFF & ALL OTHER
CONTROLS IN INI-
TIAL* POSITIONS
8 - - - - - - - a i
CHECK
OUTPUT ATTEN,
FUNCTION OUT
BNC WIRING, EX-
TERNAL CABLE &
TERMINATION
P1-9 +24 Vdc
<
P1
-8
--24 Vdc
~ 0 - _ _ ~
7
P1-7-15Vdc ~
P1-6 +15 Vdc
ALL FUNCTIONS
GOOD AT WIPER
( SW4-C (WHT/ORN
WIRE) WHEN SW4
ROT!T D?
YES
ALL F NC IONS
CHECK
RIANGLE BUFFE
REMOVE
WHITE/ORN WIRE
& ADD 60Q
RESISTOR FROM
WIPER TO CIRCUIT
GROUND
GOOD AT JUNCTION NO
<R271 & R185 WHEN " : , . . . . . - - - - - - - - - - - - - - - - . i
SW4 ROTATED
YES
TURN ATTEN
VERNIER CW
ALL FUNCTIONS
NO
..., _ _ _ Y_E_s< GOOD AT JUNCTION '--N_o _ _ _ _ _ _ _ _ __,
R224 & R226
CHECK
FUNCTION
SELECTOR
CIRCUIT
CHECK
PREAMP CIRCUIT
CHECK
UTPUT AMPLIFIER
?
"-../"
;;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