Kenwood TS-830S Instruction Manual page 27

_ g p t v e n e s e a n e t a c u n scatatosettanacennntgccaneyycoossigttecentsaauntasutaanesetattgeetnnt a0 sang oatn EYED AHAB A nN DNA Ha Ene AHEM e UA a NEED
SECTION 6. MAINTENANCE AND ALIGNMENT ,;
CAUTION:
DANGEROUS HIGH VOLTAGES ARE PRESENT WITHIN
THE CASE OF THE TS-830S WHEN THE TRANSCEIVER IS
TURNED ON.
EXERCISE EXTREME CAUTION TO AVOID ELECTRIC
SHOCK.
6.1 GENERAL
Your TS-830S has been factory aligned and tested to
specification before shipment. Under normal circumstances
the transceiver will operate in accordance with these
operating instructions. All adjustable trimmers and coils in
your transceiver were preset at the factory and should only
be readjusted by a qualified technician with proper test
equipment.
Attempting service or alignment without factory author-
ization can void the transceivers warranty.
B CLEANING
The knobs, front panel and cabinet of the TS-830S are likely
to become soiled after extended use. The knobs should be
removed from the transceiver and cleaned with a neutral
soap and warm water. Use a neutral soap (not harsh
chemicals) and a damp cloth to clean the cabinet and front
panel.
@ FUSE REPLACEMENT z
When the fuse blows, there is some cause. Be sure to find
the cause before attempting operation. Use a 6 amp fuse
for 120V AC operation. Under no circumstances use a
higher amperage fuse than specified. This can cause
extensive damage. Also, the warranty will be void if an
oversized fuse is used.
@ FAN MOTOR LUBRICATION
Every 6 months dust out the final compartment, and apply a
few drops of light machine oil to the front and rear fan motor
bearings.
WARNING:
Be certain to disconnect power, and to discharge high
voltage before servicing in the final compartment.
6.2 SERVICE POSITION
The TS-830S should be placed on its side, with the final
section up, for any alignment or service. This position
permits adequate ventilation for the final tubes as well as
easy accessibility to the modules. Most of the described
adjustments can be made without removing the boards from
the transceiver.
sn annette,
6.3 RECEIVER ADJUSTMENTS
@ RIT ZERO (AF-AVR UNIT)
When the RIT circuit is turned on, and the RIT control is set
to zero, the receive frequency should be exactly the same as
the transmit frequency. If the frequency is not the same,
adjust the RIT zero preset control, VR2.
To zero the RIT, turn on the calibrator and tune the VFO for
about a 1000 Hz calibrator tone. Turn the RIT control to
zero. Turn the RIT switch ON and adjust VR2 for the same
1000 Hz tone. Push the RIT switch ON and OFF to be sure
the tones are identical.
® NOTCH ADJUSTMENT (IF UNIT)
Turn the NOTCH switch OFF and center the NOTCH control.
trol.
Receive a 25 kHz marker signal at 1.9 MHz with a 1.5 kHz
beat frequency.
Turn the NOTCH switch ON.
While monitoring AF output through the speaker, adjust L10
and VR1
alternately to minimize this signal.
—
rel
{aux! |245] | 18 10 5) (ee 4
| sbe { Ths
! 1 DRIVE
18 28 2i 14 a 1 t
' 1 coil
1 1
Ieee. J
= |
eeoss a [ i s
i] '
1 \
'8) }2e 21] U4) 17 1 ! MIX coil
1
(~~ |24.5 ! '
1aux 18] |10} |35 Se =
Real} ees)
(a a]4
= 1 H
18
i zee jeri || | ANT coit
fl jaa [24s|70] [ f o ] [3] |
bead (See eee a
Cacao & (om x)
Fig. 6-1 Coil Pack Locations @&
FRONT Panel
adjustment
Frequency
5 1.9 MHz
5 3.75
7.15
10.125
BAND Switch
14.175
18.125
21.225
24.95
28.8
Table 6-1 Coil pack Alignment order
27