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LT 3006 Notes
CABLE NAME: LT3006
UNIT UNDER TEST: 618M-1, 618M-1A, 618M-1B, 618M-1C,
618M-1D, 618M-2B, 618M-2D ,
KTR 9100, KTR 9100A
ADVANTAGES OF USING NEW LT 6 PANEL AND HARNESS:
The audio outputs, input voltage and current draw can be measured by the LT 6
panel meter. The COMM and SIDETONE audio can be monitored by the LT 6 panel
speaker; no need for headphones to listen to the audio. Also tip jack access to
the audio lines and variety of other signals.
POWER REQUIREMENTS:
The above units run on 28VDC. Set the LT 6 panel 14V/28V switch to 28V. This
supplies 28VDC to the unit under test when the LT 6 panel power switch is turned
ON. The LT 6 Remote ON/OFF switch in the ON position will turn on the Unit Under
Test.
SWITCH IDENTIFICATION:
| LT 6 |
FUNCTION |
| 14V/28V |
Select 28V output voltage to Unit Under Test |
| POWER/OFF |
Connects
selected DC power to Unit Under Test. |
| REMOTE ON/OFF |
Energizes
the Unit Under Test. |
|
TEST/NORM
|
Select NORM
and leave in NORM except when testing a mike or headset. |
| ICOM/COM |
Select COM to
apply LT 6 panel Mike Jack to Comm Mike line. Tip Jack 26 can also be used to
input mike audio. |
|
KEY/OFF |
Select KEY
when not using a microphone to key the Unit Under Test. |
|
AUX/COM |
Select COM to
apply COMM Audio output to panel phone channel. Select AUX to apply SIDETONE
Audio output to panel phone channel. Output is available at LT 6 panel Phone
Jack and at panel speaker when selected. The COMM Audio is available at Tip Jack
24 and is metered by the LT 6 panel meter set to COM. The SIDETONE Audio is
available at Tip Jack 25 and is metered by the LT 6 panel meter set to AUX. |
|
S1 POSITION P1 |
Select position P1 for Serial Port A or center OFF for Serial
Port B |
|
S1 POSITION P2 |
Select position P2 for FM Mode |
|
S2 POSITION P1 |
Select position P1 to ground SDI 1 |
|
S2 POSITION P2 |
Select position P2 to ground SDI 2 |
SPEAKER/MUTE
/PHONES |
Select Phones for amplified COM audio or AUX audio
in LT 6 panel Speaker. |
|
VOLUME |
Adjust to full
CW when measuring audio RMS or using a watt meter at the Phone Jack. |
|
PANEL METER SWITCH |
The Panel Meter can be used to monitor the
following: DC Volts applied to the Unit, DC Current draw of the Unit, RMS volts
of the Comm audio, RMS volts of the AUX audio. |
TIP JACK IDENTIFICATION LT 6
| TIP JACK |
DESCRIPTION |
| 1 |
MUTE RELAY N.O. |
| 2 |
MUTE RELAY ARM |
| 3 |
MUTE RELAY N.C. |
| 4 |
COMM DISABLE |
| 5 |
MIKE AUDIO 0 DBM HI |
| 31 |
SDI 1 switch S2 position P1 |
| 6 |
MIKE AUDIO 0 DBM |
| 7 |
MIKE AUDIO 0 DBM CT |
| 32 |
SDI 2 switch S2 position P2 |
| 8 |
DATA LINK HI |
| 9 |
DATA LINK LO |
| 10 |
DATA LINK CT |
| 11 |
DATA LINK KEY |
| 12 |
SHARP SELECTIVITY |
| 13 |
SQUELCH CONT. HI |
| 14 |
SQUELCH CONT. ARM |
| 15 |
SQUELCH CONT. LO |
| 16 |
HI SENSE |
| 17 |
TRANSMIT FREQ. OFFSET |
| 33 |
SERIAL PORT A SIDE A |
| 34 |
SERIAL PORT A SIDE B |
| 35 |
SERIAL PORT B SIDE A |
| 36 |
SERIAL PORT B SIDE B |
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