Kenwood TK-3148 Service Manual
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Kenwood TK-3148 Service Manual

Kenwood TK-3148 Service Manual

Uhf fm transceiver
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UHF FM TRANSCEIVER / UHF
TK-3148
SERVICE MANUAL /
REVISED /
This service manual applies to products with 90600001
or subsequent serial numbers.
In terms of the products with the serial numbers earlier
than 90600001, refer to the TK-3148 service manual as
per part No. B51-8656-00.
Helical antenna
(T90-1032-55)
Knob (PTT)
(K29-9131-03)
Key top (SW1,SW2)
(K29-9132-03)
Plastic cabinet assy
(A02-3653-34)
无铅焊接通信产品
保护环境建伍领先
注意∶本产品是无铅化焊接产品
在维修时请使用无铅焊锡
和相应的焊接工具
详细事项请访问如下网址了解:
http://www.kenwoodhk.com.hk/
RoHS
This product complies with the
调频对讲机
维修手册
修订版
directive for the European market.
© 2009-1 PRINTED IN JA PAN
B51-8656-10 ( N ) PDF
本维修手册适用于 90600001 开始的序列号产品。
有关比 90600001 早的序列号产品，请参考编号为
B51-8656-00 的 TK-3148 维修手册。
Knob (ENC)
(K29-9134-13)
Knob (VOL)
(K29-9133-13)
Front glass
(B10-2770-02)
Packing (4-KEY)
(G53-1732-01)
This product uses Lead Free solder.

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  • Page 1 This service manual applies to products with 90600001 有关比 90600001 早的序列号产品，请参考编号为 or subsequent serial numbers. B51-8656-00 的 TK-3148 维修手册。 In terms of the products with the serial numbers earlier than 90600001, refer to the TK-3148 service manual as per part No. B51-8656-00. Knob (ENC) (K29-9134-13) Helical antenna...

  • Page 2: Table Of Contents

    的信息而导致的损害负责。Kenwood 公司保留出于改进的需要 rors or omissions. Neither is any liability assumed for dam- 而随时对文中的产品信息做出更改的权利。 ages resulting from the use of the information contained herein. Kenwood reserves the right to make changes to any products herein at any time for improvement purposes.

  • Page 3: General

    TK-3148 概述 GENERAL / 引言 INTRODUCTION 本手册的范围 SCOPE OF THIS MANUAL 本手册是提供给熟悉通信专业并且具有维修经验的技术人 This manual is intended for use by experienced tech ni - 员使用的。它包括了维修该设备所需要的全部资料和现行出 cians familiar with similar types of commercial grade com - 版日期。在出版后可能发生变动，如果需要，可以参照《维 mu ni ca tions equipment. It contains all required service 修通报》或《手册修订本》进行补充。...

  • Page 4: System Set-Up

    操作特性 OPERATING FEATURES / 1. 操作特性 1. Operation Features TK-3148 是具有集群和常规双模式的 UHF 调频对讲机。 The TK-3148 is a UHF FM Radio designed in both Trunk- ing Mode and Conventional Mode. 2. 对讲机的控制和指示 2. Transceiver Controls and Indicators 2-1. 主机外形 2-1. Physical Layout...
  • Page 5 TK-3148 操作特性 OPERATING FEATURES / 2-2. 控制面板 2-2. Panel controls 顶部和前面板上的键是触发式按键。有关这些键和旋钮的 The key on the top and front panel is momentary-type 功能说明如下。 push buttons. The functions of these keys and knob are ex- plained below. q Antenna connector q 天线连接器...
  • Page 6 TK-3148 操作特性 OPERATING FEATURES / • 常规模式 • Conventional mode w Rotary encoder w 旋转编码器 旋转本编码器选择您所需要的信道。 Rotate this encoder to select your desired channel. r Transmit/ Receive indicator r 接收指示灯 在接收信号时点亮绿色。在发射中点亮红色。 Lights green while receiving a signal. Lights red while transmitting.

  • Page 7: Realignment

    1 shows the setup of a PC for programming. 5-2. 连接步骤 5-2. Connection procedure 1. 使用编程电缆将 TK-3148 与计算机连接。 1. Connect the TK-3148 to the personal computer with the 2. 当接通电源时，立即进入用户模式。当 P C 机发出指令使对 interface cable. 讲机进入 PC 机模式时， “PROGRAM”出现在显示器上。 2. When the POWER switch on, user mode can be entered 当对讲机发送数据时，红色指示灯闪动。...
  • Page 8 • The data stored in the personal computer must match 匹配。 model type, when it is written into the fl ash memory. • 将 TK-3148 改变为计算机编程模式，然后连接编程电缆。 • Change the TK-3148 to PC mode, then attach the inter- face cable. 5-3. KPG-36 说明 5-3. KPG-36 description (PC 机编程接口电缆...
  • Page 9 4. 按住 [S] 键并接通 TK-3148 的电源。 当 “PROG 57600” 出现时， 3. Set the fi rmware to be updated by File name item. 松开 [S] 键。 4. Turn the TK-3148 power ON with the [S] switch held 5. 检查 T K -3148 与个人电脑之间的连接是否正确，并且确认 down.

  • Page 10: Circuit Description

    TK-3148 电路说明 CIRCUIT DESCRIPTION / 1. 综述 1. Overview 本对讲机是在 350 到 390MHz(C) 的频率范围内工作的 UHF/ This transceiver is UHF/FM portable transceiver designed FM 对讲机设备。 to operate in the frequency range of 350 to 390MHz (C). 2. 电路的频率构成 2. Circuit Confi guration by Frequency 接收部采用...
  • Page 11 TK-3148 电路说明 CIRCUIT DESCRIPTION / 第二中频信号通过陶瓷滤波器 ( C F200: 宽，C F201: 窄 ) 继 The second IF signal is passed through the ceramic fi lter 续消除相邻信道的信号。经滤波的第二中频信号被限幅放大 (CF200; Wide, CF201; Narrow) to more remove the adjacent 器放大并被带有陶瓷鉴频器 ( C D200) 的正交鉴频器进行解调。...
  • Page 12 TK-3148 电路说明 CIRCUIT DESCRIPTION / 3-4. 音频放大器电路 3-4. Audio amplifi er circuit 来自于 I C200 的解调信号进入静音开关 ( Q204)，并且被 The demodulated signal from IC200 goes through the IC300(2/2) 放大，被 IC500 高通滤波，低通滤波，高通滤波， mute switch (Q204) and is amplifi ed by IC300 (2/2), high- 带阻滤波和去加重。...
  • Page 13 TK-3148 电路说明 CIRCUIT DESCRIPTION / 3-5. 静噪电路 3-5. Squelch circuit I C200 的输出再次进入调频中频芯片，然后通过片上的 The output from IC200 enters FM IF IC again, then 带 通 滤 波 器。 并 通 过 带 通 滤 波 器 I C201(2/2)。 调 制 输 入。...
  • Page 14 TK-3148 电路说明 CIRCUIT DESCRIPTION / MUTE DTMF EXT. Q501 IC500 Q301 D501 IC501(1/2) LIMIT COMP Q502 IC307 IC305(1/2) IC307 MUTE Q305 IC307 IC302(1/2) LSD DI9 BUFF TCXO Fig. 6 Microphone amplifi er / 图 6 话筒放大器 4-2. 驱动和末级放大器 4-2. Drive and Final amplifi er 来自于...
  • Page 15 TK-3148 电路说明 CIRCUIT DESCRIPTION / 5. 频率合成器电路 5. Frequency Synthesizer Circuit 频率合成器由 TCXO(X1)、VCO、PLL IC(IC1) 和缓冲放大器 The frequency synthesizer consists of the TCXO (X1), 组成。 VCO, PLL IC (IC1) and buffer amplifi ers. TCXO 产生 16.8MHz 的频率。在温度为 -30~+60℃的范围内， The TCXO generates 16.8MHz. The frequency stability 频率的稳定性为...
  • Page 16 TK-3148 电路说明 CIRCUIT DESCRIPTION / 6．控制电路 6. Control Circuit 控 制 电 路 由 M C U ( I C309) 和 其 外 围 电 路 组 成。M C U 控 制 The control circuit consists of MCU (IC309) and its periph- TX-RX 单元和发送到显示单元的数据以及从显示单元发送的数...
  • Page 17 TK-3148 电路说明 CIRCUIT DESCRIPTION / 7. 信令电路 7. Signaling Circuit 7-1. 编码 7-1. Encode • 低速率数据 (QT，DQT) • Low-speed data (QT, DQT) M C U 的管脚 1 输出低速率数据。信号通过低通陶瓷滤波器 Low-speed data is output from pin 1 of the MCU. The 进入总和放大器 (IC305 1/2)。此信号与音频信号混合，通过...
  • Page 18 TK-3148 电路说明 CIRCUIT DESCRIPTION / • FFSK • FFSK 来自于中频芯片的 F F S K 输入信号被 I C300(1/2) 放大，然 The FFSK input signal from the IF IC is amplifi ed by IC300 后进入 IC500 的管脚 5。 此信号被 IC500 中的 FFSK 解调器解调。...

  • Page 19: Semiconductor Data

    TK-3148 半导体数据 SEMICONDUCTOR DATA / MCU: 30622MEP526GU(TX-RX 单元 IC309) MCU: 30622MEP526GU (TX-RX unit IC309) 管脚号 端口名称 输入 / 输出 管　脚　功　能 Pin No. Port Name I/O Function LSDO 输出 低速率数据输出。 LSDO Low speed data output. HSDO 输出 高速率数据输出。 HSDO High speed data output.
  • Page 20 TK-3148 半导体数据 SEMICONDUCTOR DATA / 管脚号 端口名称 输入 / 输出 管　脚　功　能 Pin No. Port Name I/O Function 不使用。 Not used. 输出 闪速存储器 WR 总线。 Flash memory WR bus. SAVE 输出 电池省电模式输出。 SAVE Battery save output. SELF 输入 NC( 无连接 )。...

  • Page 21: Components Description

    TK-3148 元件说明 COMPONENTS DESCRIPTION / TX-RX 单元 (X57-6413-01) TX-RX UNIT (X57-6413-01) 编　号 使用 / 功能 操　作 / 状　态 Ref. No. Use / Function Operation / Condition PLL IC PLL IC IC100 自动功率控制放大器 IC100 APC AMP IC200 中频 IC IC200 IF IC IC201 音频放大器滤波器...
  • Page 22 TK-3148 元件说明 COMPONENTS DESCRIPTION / 编　号 使用 / 功能 操　作 / 状　态 Ref. No. Use / Function Operation / Condition Q306 晶体管 发射发光二极管开关 Q306 Transistor TX LED switch Q307,308 场效应管 内 / 外开关 Q307,308 Internal/External switch Q309 晶体管 BUSY LED 开关...

  • Page 23: Parts List

    Les articles non mentionnes dans le Parts No. ne sont pas fournis. Y : AAFES (Europe) X : Australia M : Oth er Areas Teile ohne Parts No. werden nicht geliefert. TK-3148 (Y50-5643-01) TX-RX UNIT (X57-6413-01) Desti- Desti- Ref. No.
  • Page 24 TK-3148 零件表 PARTS LIST / TX-RX UNIT (X57-6413-01) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CC73GCH1H040B CHIP C 4.0PF C155 CC73HCH1H100D CHIP C 10PF CC73GCH1H0R5B CHIP C 0.5PF...
  • Page 25 TK-3148 零件表 PARTS LIST / TX-RX UNIT (X57-6413-01) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C267 CC73GCH1H060B CHIP C 6.0PF C355 CS77CA1A100M CHIP TNTL 10UF 10WV C269...
  • Page 26 TK-3148 零件表 PARTS LIST / TX-RX UNIT (X57-6413-01) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C532 CK73HB1H561K CHIP C 560PF L204 L41-5685-39 SMALL FIXED INDUCTOR (0.56UH) C533...
  • Page 27 TK-3148 零件表 PARTS LIST / TX-RX UNIT (X57-6413-01) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation RK73HB1J470J CHIP R 1/16W R214 RK73HB1J823J CHIP R 1/16W RK73HB1J101J CHIP R...
  • Page 28 TK-3148 零件表 PARTS LIST / TX-RX UNIT (X57-6413-01) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R321 RK73HB1J823J CHIP R 1/16W R403 RK73HB1J334J CHIP R 330K 1/16W R322...
  • Page 29 TK-3148 零件表 PARTS LIST / TX-RX UNIT (X57-6413-01) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation D13,14 HSC277 DIODE Q205 2SC4649(N,P) TRANSISTOR D100,101 HSC277 DIODE Q206,207 3SK318 D102,103...

  • Page 30: Exploded View

    TK-3148 部件分解图 EXPLODED VIEW / 70x2 71x2 27x2 X57-641 (A/3) (B/3) 25 36 (C/3) : N09-6565-05 : N14-0834-04 D M2.6 x 4 : N30-2604-48 M3 x 6 : N30-3006-43 M2 x 3.5 : N79-2035-48 G M2 x 5 : N83-2005-48...

  • Page 31: Packing

    TK-3148 包装 PACKING / 43 Item carton case (H52-2007-02) 9 Instruction manual (B62-1756-00) 47 Belt hook (J29-0701-15) A Dressed screw (N08-0548-24) 6 Cap (B09-0625-03) 62 Helical antenna (T90-1032-55) Parts with the exploded numbers larger than 700 are not supplied.

  • Page 32: Adjustment

    TK-3148 调整 ADJUSTMENT / Test Equipment Required for Alignment Test Equipment Major Specifi cations Frequency Range 350 to 400MHz Standard Signal Generator (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1µV to greater than –47dBm/1mV Input Impedance 50Ω Power Meter...
  • Page 33 TK-3148 调整 ADJUSTMENT / ■ Antenna connector adapter ■天线接口转换头 此对讲机的天线接口使用 S M A 终端。使用天线接口转换头 The antenna connector of this radio uses an SMA termi- [SMA(f)- BNC(f) 或 SMA(f)- N(f)] 进行转换。( 转换头不作为 nal. Use an antenna connector adapter [SMA(f) – BNC(f) or 可选件提供，因此请购买商用转换头。)
  • Page 34 TK-3148 调整 ADJUSTMENT / • PC 机调谐 • PC tuning 将电线连接到接口电缆连接器的 PCB 板上。 Connect the wires to the PCB in the connector case of 要从连接器上拉出电线，需要取下连接器盒。 interface cable. For output the wires out of the connector case, need to process the connector case.
  • Page 35 TK-3148 调整 ADJUSTMENT / ■ Connecting the PTT, MIC, SP, and SW2 cables ■连接 PTT、MIC、SP 和 SW2 电缆 在连接 PTT、MIC、SP 和 SW2 双线电缆时，确保各电缆的颜 When connecting the PTT, MIC, SP and SW2 2-wire 色匹配如下图所示。 cables, ensure that the color of each cable mates as shown in the following diagram.
  • Page 36 ■ Repair jig (Chassis) ■维修机架 ( 机壳 ) 使用机壳 (A10-4060-04) 维修 TK-3148。将 TX-RX 单元放 Use jig (part No.: A10-4060-04) for repairing the TK-3148. 置在机壳上，并且拧上螺钉。 Place the TX-RX unit on the jig and fi t it with screws. 在维修过程中，当需要在 T X - R X 单元的电路板上检测到电...
  • Page 37 7~16 – – 注释 : Note: 用户必须调整上述所有信道中的频率，即使第 3 行的信道 You must adjust the frequencies in all channels as shown 频率低于 TK-3148 的规格。 above, even though the channel frequencies in the 3 row are below the specifi cations of the TK-3148.
  • Page 38 TK-3148 调整 ADJUSTMENT / • 信令 • Signaling 信令号码 Signaling No. 无 无 None None 无 200Hz 方形波 None 200Hz Square wave QT 67.0Hz QT 67.0Hz QT 67.0Hz QT 67.0Hz QT 151.4Hz QT 151.4Hz QT 151.4Hz QT 151.4Hz QT 210.7Hz QT 210.7Hz...
  • Page 39 用户必须调整上述所有测试信道中的频率，即使第 H 行的 You must adjust the frequencies in all test channels as 测试信道频率超出 TK-3148 的规格。 shown above, even though the test channel frequencies in the H row are below the specifi cations of the TK-3148. ■流程图 ■ Flow chart FREQ xxx...
  • Page 40 TK-3148 ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) BATT terminal voltage: 7.5V 2) SSG Standard modulation [Wide] MOD: 1kHz, DEV: 3kHz [Narrow] MOD: 1kHz, DEV: 1.5kHz 2.
  • Page 41 TK-3148 调 整 公用部分 测 量 调 整 项 目 条 件 规 格 ／ 备 注 测量装置 单元 端子 单元 部件 方 法 1. 设定 1) 电池终端电压 :7.5V 2) SSG 标准调制 [ 宽带 ] MOD:1kHz,DEV:3kHz [ 窄带 ] MOD:1kHz,DEV:1.5kHz 2.
  • Page 42 TK-3148 ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 6. DQT 1) Adj item [BAL] Power Panel Panel Encoder Make the demodu- Balance Adjust [ *** ] meter knob lation waves into Adjust Deviation meter fi...
  • Page 43 TK-3148 调 整 测 量 调 整 项 目 条 件 规 格 ／ 备 注 测量装置 单元 端子 单元 部件 方 法 6. DQT 平衡 1) 调整项目 [BAL] 功率仪 面板 面板 编码 使调整波形为方形 调整 调整 [ *** ] 偏差仪...
  • Page 44 TK-3148 ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 11. DTMF 1) Adj item [DTMF] Power Panel Panel Encoder 1.25kHz ±0.1kHz Deviation Adjust [ *** ] meter knob Adjust Deviation meter fi lter...
  • Page 45 TK-3148 调 整 测 量 调 整 项 目 条 件 规 格 ／ 备 注 测量装置 单元 端子 单元 部件 方 法 11.DTMF 频偏 1) 调整项目 [DTMF] 功率仪 面板 面板 编码 1.25kHz ±0.1kHz 调整 调整 [ *** ] 偏差仪...
  • Page 46 TK-3148 ADJUSTMENT Receiver Section (Panel tuning mode except when Panel test mode is specifi ed) Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Sensitivity 1) Adj item [SENS] Tracking Panel Panel Encoder...
  • Page 47 TK-3148 调 整 接收部分 ( 面板调谐模式除非面板测试模式已被指定 ) 测 量 调 整 项 目 条 件 规 格 ／ 备 注 测量装置 单元 端子 单元 部件 方 法 1. 灵敏度调整 1) 调整项目 [SENS] 轨迹发生 面板 面板 编码 调整 (BPF 特性 ) 调整...
  • Page 48 TK-3148 ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 4. RSSI (Low) 1) Adj item [LRSI] Panel Panel Encoder After input signal Adjust Adjust [ *** ] AF VTVM Universal knob from SSG, press [B]...
  • Page 49 TK-3148 调 整 测 量 调 整 项 目 条 件 规 格 ／ 备 注 测量装置 单元 端子 单元 部件 方 法 4. RSSI( 低 ) 1) 调整项目 [LRSI] 面板 面板 编码 从 SSG 输入信号后， 调整 调整 [ *** ] AF VTVM 通用接...

  • Page 50: Terminal Function

    TK-3148 端子功能 TERMINAL FUNCTION / TX-RX 单元 (X57-6413-01):TX-RX 部分 TX-RX UNIT (X57-6413-01): TX-RX section 管脚号码 名 称 输入 / 输出 功 能 Pin No. Name Function CN301 CN301 不使用 Not used 输入 串行数据输入 Serial data input 输出 串行数据输出 Serial data output 输出...
  • Page 51 TK-3148 端子功能 TERMINAL FUNCTION / 管脚号码 名 称 输入 / 输出 功 能 Pin No. Name Function AUXKEY 输入 AUX 按键输入 AUXKEY AUX key input 接地 输入 用于音频控制的音量电平输入 Volume level input for audio control 输入 编码器脉冲输入 Encoder pulse input 输入...

  • Page 52: Tx-Rx Unit (X57-6413-01)

    TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (A/3) Component side view (J79-0163-09 A/3) L314 L315 C375 R388 D302 L311 C349 C352 Q305 R371 C354 R381 R380 R364 Q307 L309 C356 R374 R368 R378 IC313 R372 R360 MIC– R383...
  • Page 53 TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (A/3) Component side view (J79-0163-09 A/3) C910 C911 CN305 SP– C362 R319 C364 R316 C371 C313 C389 C383 SP– R309 IC308 C309 D304 L313 R314 R308 C394 C399 CP307 CP309 CP311...
  • Page 54 TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (A/3) Foil side view (J79-0163-09 A/3) C329 X200 CF200 C212 IC307 L201 R226 R253 C280 C225 R326 R209 R210 D202 C391 CF201 Q201 R211 C218 CD200 R328 D203 IC305 R264 R320...
  • Page 55 TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (A/3) Foil side view (J79-0163-09 A/3) L701 R232 R238 XF200 C249 L203 R276 C250 C290 C230 C232 C281 C235 L210 R235 L205 L206 R237 R230 C244 C252 C236 C240 C100 C292...
  • Page 56 TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (B/3) Component side view (J79-0163-09 B/3) J79-0163-09 B/3 R507 R503 CN500 TX-RX UNIT (X57-6413-01) (C/3) Component side view (J79-0163-09 C/3) J79-0163-09 C/3 S600 S601 S602 Component side Layer 1 Layer 2...
  • Page 57 TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (B/3) Foil side view (J79-0163-09 B/3) R527 C531 C702 C535 R530 Q501 R524 R522 Q502 C534 R531 C539 C540 C533 R532 C525 R521 C537 C523 R533 C522 R520 L500 R537 C520...

  • Page 58: Schematic Diagram

    TK-3148 原理图 SCHEMATIC DIAGRAM / TX-RX UNIT (X57-6413-01) (A/3) 7.50V BATT DETECTOR 5M AVR F400 L400 IC400 IC401 XC61CN4202NR 7.50V 2.5A XC6204B502MR 7.50V 7.20V 5.04V SURGE D405 ABSORPTION VOUT RB521S-30 5M PROTECT 4.88V CN400 RESET VOUT CP400 DETECTOR 47K*2 IC404...
  • Page 59 TK-3148 原理图 SCHEMATIC DIAGRAM / TX-RX UNIT (X57-6413-01) (A/3) 100k 1.5p 5.02V 2SC5488A-H DOUBLER 150k F-IN FILTER F-IN FILTER T:0V SHIFT SW SHIFT SW 4.87V R:4.89V L77-3028-05 D11,12 PLL LOCK SPEED-UP Vcont DGND DVDD 1000p MA2S077-F PLL IC DGND DVDD...
  • Page 60 TK-3148 原理图 SCHEMATIC DIAGRAM / TX-RX UNIT (X57-6413-01) (A/3) T:3.60V R:0V C700 D1,3 1.5p(B) TX VCO PRE-DRIVE AMP MODULATION TX VCO D100,101 T:1.93V T:87mV R102 TX/RX COMMON RF AMP T:1.86V R:2.06V R:0V TX/RX RF SWITCH BUFFER AMP T:0.72V R:1.86V 100n...
  • Page 61 TK-3148 原理图 SCHEMATIC DIAGRAM / TX-RX UNIT (X57-6413-01) (A/3) D102 TX FINAL AMP D102,103 HVC131 TX DRIVE AMP Q106 STRIP LINE ANT SWITCH L710 C146 D103 2SK3476-F C164 L116 L199 Q101 Q103 33p(G) 1.8n 2.7n 6.8n HVC131 2SK2596-E PRE-DRIVE AMP...
  • Page 62 TK-3148 原理图 SCHEMATIC DIAGRAM / TX-RX UNIT (X57-6413-01) (A/3) C149 L110 L111 L112 CN13 470p C151 C153 C156 LCD UNIT CN302 L320 R603 R604 SCLK R605 R606 R607 R608 SKEY R609 AKEY R610 BKEY R611 CKEY R612 LEDA R613 LEDK...

  • Page 63: Level Diagram

    TK-3148 电平图 LEVEL DIAGRAM /...

  • Page 64: Block Diagram

    TK-3148 方块图 BLOCK DIAGRAM / TX-RX UNIT X57-641 015AZ6.8F 015AZ6.8F 2SJ347F UPA672T-A UPA672T-A 015AZ2.4(X)F D301 KDR367E-P DISCHARGE 2SK1824-A AT29C040A-90T 015AZ6.8F 2SA1362-F(Y) NNCD6.8G-A TK62012F TK62012F M62364FP-F TC75W51FK(F) RIPPLE FILTER TK62012F TK62012F TC75C51FE(F) UPA672T-A TK62012F UPA672T-A TK62012F TK620 TK62012F TC75W51FK(F) EXPIN (TA31136...
  • Page 65 TK-3148 方块图 BLOCK DIAGRAM / 2SJ347F 2SC4649(N,P) 2SK1830F XC61CN5002NR IC310 CAT24C16WI-G D402 XC6204B502MR MA2S111-F GN1G 9.830MHz XC6204B502MR 30622MEP526GU XC61CN4202NR 29C040A-90TU 2SJ347F 2SJ347F XC62GR5012PR KTA2015(Y) Q2,Q3 2SK508NV(K52)x2 TK62012F TX; D1,D3, RX; D2,D4 1SV325Fx4 Q4 2SJ347F HVC133-Ex2 Q6 RN47A4-F HSC277x2 2SC5108(Y)F 2SC5191-A...

  • Page 66: Optional Accessories

    TK-3148 可选附件 OPTIONAL ACCESSORIES / KSC-25 (Battery charger / 电池充电器 ) KNB-24L (Li-ion battery pack / 锂离子电池 ) ■ External View / 外视图 ■ External View / 外视图...

  • Page 67: Specifications

    TK-3148 SPECIFICATIONS General Frequency Range RX, TX ..............350 to 390MHz Channel Spacing ............6.25kHz/ 12.5kHz/ 25kHz Battery Voltage ............DC 7.5V±20% Battery Life ............More than 9 hours at 4W (5-5-90 duty cycle with KNB-24L battery) Temprature Range ..........–30°C to +60°C (–22°F to + 140°F) Dimension and Weight With KNB-24L (1400mAh battery) ......105 (4.13) H x 56 (2.21) W x 29.5 (1.16) D mm (inch), 0.66lbs (300g)

  • Page 68: 规 格

    Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex Kwai Fong, N.T., Hong Kong KENWOOD House, Dwight Road, Watford, Herts., 1 Ang Mo Kio Street 63, Singapore 569110 WD18 9EB United Kingdom...
  • Page 69 TK-3148 TK-3148 板 板 PC BOARD / PC PC BOARD / PC TX-RX UNIT (X57-6413-01) (A/3) Component side view (J79-0163-09 A/3) TX-RX UNIT (X57-6413-01) (A/3) Component side view (J79-0163-09 A/3) L314 C910 C911 L315 CN305 C375 R388 D302 L311 SP–...
  • Page 70 TK-3148 TK-3148 板 板 PC BOARD / PC PC BOARD / PC TX-RX UNIT (X57-6413-01) (A/3) Foil side view (J79-0163-09 A/3) TX-RX UNIT (X57-6413-01) (A/3) Foil side view (J79-0163-09 A/3) C329 X200 L701 CF200 R232 C212 IC307 R238 L201 XF200...
  • Page 71 TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (B/3) Component side view (J79-0163-09 B/3) J79-0163-09 B/3 R507 R503 CN500 TX-RX UNIT (X57-6413-01) (C/3) Component side view (J79-0163-09 C/3) J79-0163-09 C/3 S600 S601 S602 Component side Layer 1 Layer 2...
  • Page 72 TK-3148 板 PC BOARD / PC TX-RX UNIT (X57-6413-01) (B/3) Foil side view (J79-0163-09 B/3) R527 C531 C702 C535 R530 Q501 R524 R522 Q502 C534 R531 C539 C540 C533 R532 C525 R521 C537 C523 R533 C522 R520 L500 R537 C520...
  • Page 73 TX-RX UNIT (X57-6413-01) (A/3) T:3.60V R:0V D102 TX FINAL AMP D102,103 HVC131 TX DRIVE AMP Q106 STRIP LINE L710 C146 D103 ANT SWITCH C149 L110 L111 L112 C700 Q101 Q103 C164 L116 L199 2SK3476-F BATT 7.50V D1,3 1.5p(B) 33p(G) 1.8n 2.7n 6.8n HVC131...
  • Page 74 TX-RX UNIT X57-641 015AZ6.8F 015AZ6.8F 2SJ347F 2SC4649(N,P) 2SK1830F XC61CN5002NR IC310 2SJ347F CAT24C16WI-G UPA672T-A D402 MA2S111-F XC6204B502MR GN1G 9.830MHz UPA672T-A XC6204B502MR 015AZ2.4(X)F D301 KDR367E-P 30622MEP526GU XC61CN4202NR DISCHARGE 2SK1824-A AT29C040A-90TU 2SJ347F 2SJ347F XC62GR5012PR 015AZ6.8F 2SA1362-F(Y) KTA2015(Y) NNCD6.8G-A Q2,Q3 2SK508NV(K52)x2 TK62012F TX; D1,D3, RX; D2,D4 TK62012F 1SV325Fx4 TK62012F...

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