Adjustment - Kenwood TK-860HG Service Manual

Test Mode (TK-860HG Only)
Test Mode Operating Features
This transceiver has a test mode. To enter test mode,
press [SCN] key and turn power on. Hold [SCN] key un-
til test channel No. and test signalling No. appears on
LCD. Test mode can be inhibited by programming. To exit
test mode, switch the power on again. The following func-
tions are available in test mode.
• Controls
[PTT] Used when making a transmission.
[MON] Monitor on and off.
[SCN] Sets to the tuning mode.
[A] Function on.
[D/A] RF power high and low.
[ ] Changes signalling.
[ ] Changes wide and narrow
[CH / ] Changes channel.
[Volume / ] Volume up/down.
• LCD indicator
"SCN" Unused.
"AUX" Lights at RF power low.
"MON" Lights at monitor on.
"Right side dot" Lights at narrow.
• LED indicator
Red LED Lights during transmission.
Green LED Lights when there is a carrier.
Frequency and Signalling
The set has been adjusted for the frequencies shown in
the following table. When required, re-adjust them follow-
ing the adjustment procedure to obtain the frequencies you
want in actual operation.
• Frequency (MHz)
Channel TK-860HG (K,M)/862HG (K)
No. RX
1 (Center) 470.050 470.100
2 (Low) 450.050 450.100
3 (High) 489.950 489.900
4 470.000 470.000
5 470.200 470.200
6 470.400 470.400
7~16 –
Channel TK-860HG (K3,M3)
No. RX
1 (Center) 415.050 415.100
2 (Low) 400.050 400.100
3 (High) 429.950 429.900
4 415.000 415.000
5 415.200 415.200
6 415.400 415.400
7~16 –

ADJUSTMENT

TK-860HG (K2)
TX RX TX
489.550 498.600
485.050 485.100
511.950 511.900
498.500 498.500
498.700 498.700
498.900 498.900
– – –
TX
–
TK-860HG/862HG
• Signalling
Signalling No. RX
1 None
2 None
3 QT 67.0Hz
4 QT 151.4Hz
5 QT 210.7Hz
6 QT 250.3Hz
7 DQT D023N
8 DQT D754I
9 DTMF DEC, (159D)
10 None
11 2-tone 321.7/928.1Hz
12 Single tone 1200Hz
• Preparations for tuning the transceiver
Before attempting to tune the transceiver, connect the
unit to a suitable power supply.
Whenever the transmitter is turned, the unit must be
connected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with a
4Ω dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
• Transceiver tuning
(To place transceiver in tuning mode)
Channel appears on LCD. Set channel according to tun-
ing requirements.
LCD display (Test mode)
–
1
Channel No.
Press [SCN], now in tuning mode. Use [D/A] button to
write tuning data through tuning modes, and [CH
adjust tuning requirements (1 to 256 appears on LCD).
Use [ ] button to select the adjustment item through
tuning modes. Use [A] button to adjust 3-point or 5-point
tuning, and use [ ] button to switch between wide/narrow.
LCD display (Tuning mode)
Adjustment item
F R E Q . . . . .
Point tuning indicator
TX
None
100Hz square
QT 67.0Hz
QT 151.4Hz
QT 210.7Hz
QT 250.3Hz
DQT D023N
DQT D754I
DTMF ENC, (159D)
DTMF tone (9)
None
Single tone 1200Hz
1
Signalling No.
/ ] to
Wide/Narrow indicator
Off : Wide
On : Narrow
1 .
Adjustment
(1~256)
21