Wavetek 145 Instruction Manual page 41

FUNCTION OUT
IS BAD
PLACE ALL
CONTROLS TO
INITIAL* POSI-
TIONS
PROBLEM
<
IN BOTTOM FOUR
FREQUENCY
RANGES ONLY
j;o
6-6
TRY EACH CONTROL IN OTHER
POSITIONS, RElURNING TO
> - - - - - - - - 1 INITIAL POSITION. IDENTIFICA-
YES
TION OF MALFUNCTION INDI-
CATES WHICH CHART TO USE
Figure 6-1.
CHECK
CAPACITANCE
MULTIPLIER
IC7 & IC8
YES
YES
> - - - - - - - - - -
YES
CHECK
SINE CONVERTER
CIRCUIT OR
SW4-C
CHECK
CR28 - 31,017,
SW4-C, SW4-D
& SW4-I:
YES
CHECK
. - . . - - - - - - - - - 1 ..
TRIANGLE BUFFER
CIRCUIT
*NORMAL/DOUBLE/DELAY SWITCH TO NORMAL, FREQ VERNIER TO CAL,
DIAL TO 2.0, ALL OTHERS TO 12 O'CLOCK
...... !:.iYMMI::: T HICAL SUUAHI::: OH Of-f-SI:: 1 SUUAHl::S
Initial Checks, Generator Board