Rear Panel; Removing The Case - Kenwood TS-870S Instruction Manual

3 GETTING ACQUAINTED
REAR PANEL
> GND post with wing nut
Connect a heavy gauge wire or copper strap between
the graund post and the nearest earth ground {page 3}.
Da not connect the ground wire to either your house
electrical wiring, or gas or water pipes. A well-grounded
transceiver will reduce the risk of interference to
television, broadcast radio receivers, and other
electronic devices. A good ground can also reduce
receiver noise caused by static discharges.
@ ANT 1 and ANT 2 connectors
Connect the feed lines from your antennas to these
connectors. Refer to pages 2 and 63 for details.
'D Power Input DC 13.8 V connector
Connect a 13.8 V DC power source {page 3}. Use the
supplied cable with a regulated DC power supply. The
TS-870S draws less than 20.5 A at maximum transmit
output.
@) AT connector
Mates with the connector on the cable supplied with the
AT-300 antenna tuner. Refer to the instruction manual
supplied with this tuner for more information.
® EXT RX ANT jack
Mates with an RCA pin plug for connecting a separate
receiver. Menu No. 53 enables this jack. Never
transmit into this jack. Signals received by the TS-870S
are distributed via a power divider to the TS-870S
receive stage and the external receiver. Therefore,
connecting an external receiver reduces the signal level.
© IF OUT 4 jack
Mates with an RCA pin plug for connecting the
8.83 MHz IF for pan display of an SM-230 Station
Monitor {page 6}.
@ REMOTE connector
Mates with a 7-pin male DIN connector for connecting a
linear amplifier {page 5}.
@® EXT SP jack
Mates with a 3.5 mm (1/8") diameter, 2-conductor
(mong) plug for connecting an external speaker
{page 4}. Connecting an external speaker cuts off the
audio automatically to the internal speaker.
@) ACC 2 connector
Mates with a 13-pin male DIN connector for connecting
various accessory equipment {page 6}.
@@ PADDLE and KEY jacks
Mates with a 6.0 mm (1/4") 3-conductor plug and a
3.5 mm (1/8") 2-conductor plug for connecting a key
paddle for the internal electronic keyer and another key
for CW operation respectively. Read "Keys and
Keyboards for CW Operation" {page 4} before
connecting to these jacks.
@ RTTY jack
Mates with an RCA pin plug for connecting the RTTY
key output from RTTY equipment to operate true
frequency shift keying (direct keying) {page 5}.
q COM connector
Mates with a 9-pin female RS-232C connector for
connecting a computer via one of its serial
communication ports {page 83}. Functions on the
transceiver can be controlled remotely by using a
communications program on the computer {pages 5,
83}. Also used with the Quick Data Transfer function
{page 65}.