Kenwood TS-120S Service Manual page 40

ADJUSTMENTS
Measuring point Adjusting point
Item
Condition
—
Specifications/Remarks
Instruments Unit | Terminal Reference
15. Carrier point | 1) Connect AG RF power
Shift the AF sig- | 400 Hz, 2600 Hz (—6 dB down)
to MIC terminal
|meter Oscillo-
nal between 1500 Hz: Centered
and apply
scope AG
300 Hz and
Check carrier suppression if carrier
an input of AF VTVM 2700 Hz adjust | point is adjusted.
1500 Hz at 7 mV TC1 (in USB) ; ;
2) Adjust MIC
and TC2 {in Lgp)| Adiust TC1 {in USB) and TC2
GAIN until
so RF, output
(in LSB) so RF reading is
output becomes reading is equal | the same.
5W high and low
level.
a
16. Side tone AF GAIN:
12 o'clock
MODE: CW KEY 0.63V/82
Install KEY and AF VTVM
KEY down
(7. 1C meter
MODE SW: CW Power meter
When
same as item 13-@.
STBY SW: SEND DC current FILTER Adjust CAR level,
Same as item 13 meter
(C meter reading to 11A.
18. ALC
BAND: 14 MHz
Check that RF output power is the
VFO: 200
same level input.
SSB position at
MODE: CW RF power SOW 7 mV (1500 Hz) input.
VR2 in the filter meter AG
FILTER 55W (28.5 MHz)
Unit: counter- AF VTVM ' 2
clockwise
STBY: SEND
19. Protection | VR2 in the filter RF VTVM | FILTER Jumper FILTER MIN. a
DC current wire as (Approx. VR2_ VR3 ~VRI
Unit: Full clock- meter cooxial shown 0.2~0.4v)) OF jumper wire
wise Serene
at right a
Au
© Tiumper wire
Dummy.
watt meter
Progressive wave 39W.
Filter unit
. Total Same as Power meter FILTER | VR2
current item 17
by transmit
operation
20, S-meter Adjust 14, 175
1) Starting MHz in receive 1)
level position
Antenna ter-
2) $1 1 grounded | 2) Less than 8 dB +4 dB
2
8 dB to the -
3) s9 tenna from 3) Less than 40 dB +6 dB
SSG $1
3)
40 dB (50
nV) to the
antenna from
SsG— Sg
Japanese "SSG"
40
REFERENCE
American "SG"