Kenwood TK-3118 Service Manual

Also see for TK-3118: Service manual

21TK-3118TK-260 :K, K2TERMINAL FUNCTION / 端子功能TX-RX UNITCN No. Location Pin Name I/0 FunctionNo.CN301 TXRX 1 AF I RF AF LINEUnit B 2 SM I RX SIGNAL STRENGTH3 3.5R O RX3.5V4 BUSY I RX SQUELCH5 MOD O TX MODULATION6 5C O COMMON 5V7 RX O VCO RX/TX SW8 5T O TX 5V9 E - GND10 5R O RX 5V11 3.5C O COMMON 3.5V12 PS O PLL IC POWER SAVE13 TO O TX QT/DQT14 E - GND15 EP O PLL IC ENABLE16 E - GND17 DT O PLL IC DATA18 NC - NC19 CK O PLL IC CLOCK20 E - GND21 UL I PLL UNLOCK22 B I UN-SWITCHED POWER SUPPLY23 APC/TUNE O TX APC/ RX TUNECN302 TXRX 1 E -Unit B 2 E -3 MONI I MONITOR SW4 E -5 NC -6 PTT I PTT SWCN303 TXRX 1 SPK O INTERNAL SPEAKERUnit B 2 SPK O INTERNAL SPEAKER3 SPKE - SPEAKER GND4 MICE - MIC GND5 MIC I INTERNAL MIC6 LED SW O KEY ILLMINATION LED SW7 SB O SWITCHED POWER SUPPLY8 H5 I KEY MATRIX9 H4 I KEY MATRIX10 H3 I KEY MATRIX11 H2 I KEY MATRIX12 H1 I KEY MATRIX13 V4 O KEY MATRIX14 V3 O KEY MATRIX15 V3 O KEY MATRIX16 V1 O KEY MATRIXCN No. 位置 Pin 名称 I/0 功能No.CN301 TXRX 1 AF I 接收音频线路Unit B 2 SM I 接收信号强度3 3.5R O 接收3.5V4 BUSY I 接收静噪抑制电路5 MOD O 发射调制6 5C O 普通 5V7 RX O 压控接收 / 发射开关8 5T O 发射5V9 E - 接地10 5R O 接收 5V11 3.5C O 普通 3.5V12 PS O PLL 省电13 TO O 发射 QT/DQT14 E - 接地15 EP O PLL IC 启用16 E - 接地17 DT O PLL IC 数据18 NC - NC19 CK O PLL IC 时钟20 E - 接地21 UL I 失锁22 B I 非切换电源23 APC/TUNE O 发射APC/ 接收调谐CN302 TXRX 1 E -Unit 2 E -3 MONI I 监听开关4 E -5 NC -6 PTT I PTT 开关CN303 TXRX 1 SPK O 内部扬声器Unit B 2 SPK O 内部扬声器3 SPKE - 扬声器接地4 MICE - 话筒接地5 MIC I 内部话筒6 LED SW O 按键照明发光二极管开关7 SB O 切换电源8 H5 I 键矩阵9 H4 I 键矩阵10 H3 I 键矩阵11 H2 I 键矩阵12 H1 I 键矩阵13 V4 O 键矩阵14 V3 O 键矩阵15 V3 O 键矩阵16 V1 O 键矩阵发射－接收单元