Kenwood TM-271A Service Manual

TM-271A/271E
27
TX-RX UNIT (X57-685X-XX)
CN No. Pin No. Name Function
CN1 1 ENC A Encoder A
2CM Microphone Key Check
3 ENC B Encoder B
4 MIC KEY Microphone Key
5DI Data Out from LCD
6CE Chip Enable for LCD
7CL Clock for LCD
8DO Data transfer to LCD
95C 5V DC power supply
10 8C 8V DC supply
11 VOL Volume
12 POWER Power Key
13 RXD RXD
14 BRI Brightness Control
15 PTT PTT
16 GND Ground
17 GND Ground
18 MIC Microphone
CN2 1 GND Ground
2 SQC Squelch Signal
3 PKS Transmission Control
4 PR1 1200bps Receive Data
5 PR9 9600bps Receive Data
6 GND Ground
7 PKD Transmission Modulation
CN No. Pin No. Name Function
CN5 1 INT SP Internal speaker
2 GND Ground
DISLAY UNIT (X54-3450-10)
CN No. Pin No. Name Function
CN1 1 ENC A Encoder A
2CM Microphone Key Check
3 ENC B Encoder B
4 MIC KEY Microphone Key
5DI Data Out from LCD
6CE Chip Enable for LCD
7CL Clock for LCD
8DO Data transfer to LCD
95C 5V DC power supply
10 8C 8V DC supply
11 VOL Volume
12 POWER Power Key
13 RXD RXD
14 BRI Brightness Control
15 PTT PTT
16 GND Ground
17 ME ME
18 MIC Microphone
TERMINAL FUNCTION

Kenwood TM-271A Specifications

General

Brand	Kenwood
Model	TM-271A
Category	Transceiver
Language	English