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.
NX-220 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 techni- 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。...
DTMF keypad 接收订单 射频功率 DTMF键盘 类型 频率范围 (MHz) YES / 是 YES / 是 NX-220 C TX/RX 136~174 Choose the type of transceiver NO / 否 NO / 否 NX-220 C2 TX/RX 136~174 选择手持对讲机的类型 A personal computer, programming interface (KPG-22A/22U),...
NX-220 模式组合 REALIGNMENT / 1. 模式 1. Modes 用户模式 User mode 面板测试模式 *1 面板调谐模式 *1 Panel test mode *1 Panel tuning mode *1 PC模式 数据编程模式 PC mode Data programming mode 固件编程模式 PC测试模式 PC调谐模式 Firmware PC test mode PC tuning mode programming mode 复制模式...
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NX-220 模式组合 REALIGNMENT / 5. PC 模式 5. PC Mode 5-1. 前言 5-1. Preface 手持对讲机采用个人电脑、编程接口 (KPG-22A/22U),USB The transceiver is programmed by using a personal com- 适配器 (KCT-53U)) 和编程软件 (KPG-141D(C)) 进行编程。 puter, programming interface (KPG-22A/22U), USB adapter 编程软件可在 PC 上使用。图 1 说明了 PC 进行编程的设置。...
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NX-220 模式组合 REALIGNMENT / 注意 : Note: 电脑保存的数据写入闪存时,必须与“型号名称”相符。 The data stored in the computer must match the “Model Name” when it is written into the fl ash memory. 5-3. KPG-22A 说明 5-3. KPG-22A description (PC 编程接口电缆 : 选购件 ) (PC programming interface cable: Option) 将手持对讲机连接到电脑需要...
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NX-220 模式组合 REALIGNMENT / 5. 检查手持对讲机与个人电脑之间的连接,确认手持对讲机 5. Check the connection between the transceiver and the 处于编程模式。 personal computer, and make sure that the transceiver is 6. 按窗口中的“w r i t e”按钮。手持对讲机开始接收数据时, in the Program mode. 显示 [LOADING]。 6. Press “write” button in the window. When the transceiv- 7.
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NX-220 模式组合 REALIGNMENT / 输 入 密 码 并 按 [ ] 或 [ ] 键 时, 如 果 输 入 的 密 码 正 When you enter the password and press the [ ] or [ ] 确,则显示“C L O N E” 。如果密码错误,则再次显示“C L N key, “CLONE”...
NX-220 维修拆卸 DISASSEMBLY FOR REPAIR / 1. 拆卸注意事项 1. Precautions for Disassembly ■拆下选择器旋钮和音量旋钮 ■ Removing the selector knob and volume knob 1. 使用薄型工具,将其插入选择器旋钮一侧的开孔,然后推 1. Using a thin tool, insert it in the hole on the selector knob side and push the knob spring. q 动旋钮弹簧。①...
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NX-220 维修拆卸 DISASSEMBLY FOR REPAIR / ■ Removing the mechanical stopper ■拆下机械挡块 ( 仅限 C2 型号 ) 1. 用镊子夹住机械挡块的扣环并将其提起。① (C2 model only) 注意 : 小心不要损坏密封件。 1. Pick up and lift the tab of a mechanical stopper using a pair of tweezers. q 2.
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NX-220 维修拆卸 DISASSEMBLY FOR REPAIR / ■ Removing the speaker holder ■拆下扬声器托架 在扬声器托架前玻璃的中间部分和显示单元表面之间存在 There is a space of approximately 1mm (0.04 inch) be- 约 1m m 的空隙。将手指置于前玻璃中间部分的空隙处,然 tween the center part of the front glass of the speaker 后将其提起并拆下。 holder and the surface of the Display unit. Set your fi nger on the space in the center part of the front glass, then lift and remove it.
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NX-220 维修拆卸 DISASSEMBLY FOR REPAIR / 2. 重新组装注意事项 2. Precautions for Reassembly ■将粘合剂涂在选择器圆形螺母和音量圆形螺母上 ■ Apply the bond to the inside of the selector 拧 紧 圆 形 螺 母 前, 将 粘 合 剂 ( W05-0019-00) 或“T H R E E circle nut and volume circle nut BOND 1401B”涂在圆形螺母内的两端。...
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NX-220 维修拆卸 DISASSEMBLY FOR REPAIR / ■ Forming the fl at cable ■弯折扁平电缆 弯折扁平电缆的左右两端,如图所示。( 向内弯折扁平电 Form the right and left end of the fl at cable as shown in 缆的终端表面。) the fi gure. (Bend the terminal surface of the fl at cable on 注意...
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NX-220 维修拆卸 DISASSEMBLY FOR REPAIR / 注意 : 有关信道选择旋钮和旋钮弹簧的安装方法,请参阅 Note: Refer to page 10 for how to install the channel se- 第 10 页。 lector knob and knob spring. ■ Connection place of the antenna hot pin and ■天线棒和天线端子的连接位置 在图示的位置连接天线棒和天线端子。...
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NX-220 维修拆卸 DISASSEMBLY FOR REPAIR / ■ Assembly information (Sheet/Cushion) ■组装信息 ( 薄片 / 缓冲垫 ) 更换 ( 定购 )“主要部件”时, “组装的薄片 / 缓冲垫”也 When “Main Parts” is changed (ordered), “Assembled 应当一同更换 ( 定购 )。 Sheet/Cushion” should also be changed (ordered) together.
CIRCUIT DESCRIPTION / 1. 概述 1. Overview NX-220 为 VHF 便携式手持对讲机,设计用于 136 至 174MHz The NX-220 is a VHF portable transceiver designed to 的频率范围。该设备由接收机、发射机、锁相环 ( P L L ) 频率 operate in the frequency range of 136 to 174MHz. The unit 合成器、基带部件、电源和控制电路组成。...
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NX-220 电路说明 CIRCUIT DESCRIPTION / 第二混频器混合第一中频信号及 50.4M H z 的第二本地振荡 The second mixer mixes the first IF signal with the 器输出,生成 450kHz 的第二中频信号。 50.4MHz of the second local oscillator output and produces 第二中频信号通过陶瓷滤波器 ( C F1) 以消除临近信道的信 the second IF signal of 450kHz.
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NX-220 电路说明 CIRCUIT DESCRIPTION / 4. 发射部系统 4. Transmitter System 4-1. 音频频带电路 4-1. Audio band circuit 麦克风信号被 I C2(2/2) 放大并被 D3、D4、Q4 和 Q5 组成的 The signal from the microphone is amplifi ed by IC2 (2/2) AGC 电路所限制。IC2 用作抗混叠 LPF 滤波器。...
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NX-220 电路说明 CIRCUIT DESCRIPTION / 1/2) 上。I C101(2/2) 将 I C101(1/2) 的输出电压与 I C610 的 by the current fl owing through the RF power amplifi er and 基准电压进行比较,同时 I C101(2/2) 的输出信号对 Q103 和 this voltage is applied to the differential amplifier (IC101 Q104 的...
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NX-220 电路说明 CIRCUIT DESCRIPTION / 5-3. PLL IC(IC403) 5-3. PLL IC (IC403) P L L I C 对比 V C O 震荡频率和 T C X O 基准频率的相位差,将 The PLL IC compares the differences in phases of the 相位差返回至 VCO CV 端子, 从而实现反馈控制的 “锁相环路” 。...
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NX-220 电路说明 CIRCUIT DESCRIPTION / 3) 将频率数据发送到 PLL。 3) Sending frequency program data to the PLL. 4) 由静噪电路的 DC 电压控制静噪的开 / 关。 4) Controlling squelch on/off by the DC voltage from the 5) 由输入的解码数据控制音频静音电路。 squelch circuit. 5) Controlling the audio mute circuit by decode data input.
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NX-220 电路说明 CIRCUIT DESCRIPTION / 3.3V 运行,核心部分以 1.5V 运行。DSP 进行以下处理 : of 18.432MHz (the same as the IC610), the I/O section op- • 4 级 FSK 处理 erates at 3.3V and the core section operates at 1.5V. The • 模拟 FM 预加重 / 去加重...
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NX-220 电路说明 CIRCUIT DESCRIPTION / 9. 压扩器电路 9. Compander Circuit “compander”一词表示压缩器和扩展器。压扩器利用压缩 The term “compander” means compressor and expand- 器和扩展器减低噪音。手持对讲机包含 D S P ( I C603),用以执 er. The compander reduces noise by utilizing a compressor 行此操作。可用 FPU 开启或关闭手持对讲机的压扩器。 and an expander. The transceiver contains a DSP (IC603) to perform this operation.
NX-220 端子功能 TERMINAL FUNCTION / 显示单元 (X54-3760-XX A/3) Display unit (X54-3760-XX A/3) 管脚号码 名 称 输入 / 输出 功 能 Pin No. Name Function 输入 33M 输入 33M input SCK0 输入 时钟输入 SCK0 Clock input SDI0 输入 串行数据输入 SDI0 Serial data input SDO0 输出...
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NX-220 端子功能 TERMINAL FUNCTION / 管脚号码 名 称 输入 / 输出 功 能 Pin No. Name Function 输入 用于音频控制的音量电平输入 Volume level input for audio control VOL_GND 用于音量电平的接地 VOL_GND Ground for volume level ENC3 输入 旋转开关输入 ENC3 Rotary switch input 接地...
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NX-220 端子功能 TERMINAL FUNCTION / SP/MIC Connector Specifi cation Signal Description Item and Condition Unit Note Name Type Input Voltage (High) PTT/RXD input PTT/RXD Digital Zin=10kΩ Input Voltage (Low) Maximum Input Voltage 1100 mVrms External MIC input AF=1kHz MICI Analog Zin=1.8kΩ@1kHz...
NX-220 零件表 PARTS LIST / 2 2 0 CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc. 5 = Value...
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NX-220 零件表 PARTS LIST / ✽ New Parts. indicates safety critical components. L : Scandinavia K : USA P : Canada Parts without Parts No. are not supplied. Y : PX (Far East, Hawaii) T : England E : Eu rope ✽...
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NX-220 零件表 PARTS LIST / DISPLAY UNIT (X54-3760-XX) TX-RX UNIT (X57-8040-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C52,53 CK73HB1A104K CHIP C 0.10UF R41,42 RK73HB1J683J CHIP R...
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NX-220 零件表 PARTS LIST / TX-RX UNIT (X57-8040-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C115 CC73HCH1H180J CHIP C 18PF C223 CK73HB1H102K CHIP C 1000PF C116 CK73HB1H102K...
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NX-220 零件表 PARTS LIST / TX-RX UNIT (X57-8040-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C409 CC73HCH1H100B CHIP C 10PF C501,502 CK73HB1H471K CHIP C 470PF C410 CC73HCH1H101J...
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NX-220 零件表 PARTS LIST / TX-RX UNIT (X57-8040-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C649,650 CK73HB1H102K CHIP C 1000PF F53-0324-15 FUSE (2.5A) C652 CK73HB1A105K CHIP C 1.0UF...
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NX-220 零件表 PARTS LIST / TX-RX UNIT (X57-8040-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation L508 L92-0467-05 CHIP FERRITE R165 RK73HB1J563J CHIP R 1/16W L509 L33-1530-05 SMALL FIXED INDUCTOR (15UH)
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NX-220 零件表 PARTS LIST / TX-RX UNIT (X57-8040-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R354 RK73HB1J000J CHIP R 1/16W R504 RK73HB1J222J CHIP R 2.2K 1/16W R355,356...
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NX-220 零件表 PARTS LIST / TX-RX UNIT (X57-8040-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R659 RK73HB1J563J CHIP R 1/16W IC501,502 NJM2878F4-33 BI-POLAR IC R660 RK73HB1J823J CHIP R...
NX-220 部件分解图 EXPLODED VIEW / 16 (C2) 3 (C) MIC1 (C/3) 45 (C) Display unit (X54-376 A/3) Fx14 TX-RX unit (X57-804) S101 38x2 X54 (B/3) A : N09-2438-05 46x2 B : N09-6608-05 C : N14-0864-04 D : N14-0865-04 E : N30-3006-43 F : N83-2005-48 Parts with the exploded numbers larger than 700 are not supplied.
NX-220 包装 PACKING / 52 Belt clip (J29-0701-15) 7 Cap (B09-0686-03) 16 Stopper (16CH) (D32-0454-04): C 49 Holder (J19-5483-23) 709 Packing fixture 13 Instruction manual (B62-2320-00) 710 Item carton case Parts with the exploded numbers larger than 700 are not supplied. / 编号大于 700 的零件未提供分解图。...
NX-220 TROUBLE SHOOTING Fault Diagnosis of the BGA (Ball Grid Array) IC ■ Overview A fl owchart for determining whether or not the transceiver can be powered on (the LCD does not function even if the power switch is turned on) due to broken BGA parts.
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NX-220 TROUBLE SHOOTING ● The LCD displays control *1 When an abnormal value is confirmed. Points to be checked Normal voltage If the /LCDCS is 0V or 3.3V, the ASIC/FLASH/SRAM may be broken. /LCDCS R667 3.3V→0V→3.3V When a normal value is confirmed.
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Trunking System following the new ESN. the Service TX-RX unit (X57-8040-11) and the schematic • When a new printed circuit board is used, the Kenwood diagram of the original TX-RX unit (X57-8040-10). (R4 is ESN changes, as does the Transceiver Information display connected with GND (ground) only.)
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2. 使用 K P G -141D ( C ),从机型 > 产品信息菜单中选择所需的 项目 ( 型号名称和频率 ),然后用编程 > 向通信机写入数 注意 : 据写入 F P U 数据 ( P C 编程模式 )。写入手持对讲机时,会 Kenwood ESN 标签上未印制 UPC 代码和 UPC 条码。 如有必要, 出现与所选项目对应的警告讯息。 单击 [OK] 继续写入数据。 可在剪切线处切断标签,仅贴上序列号。 3. 进入编程 > 测试模式,然后按照“调整”中的说明调整各...
NX-220 ADJUSTMENT Controls “ ” not appears on the LCD display Function Display Power switch/ Selector Volume Use as the DTMF keypad. [0] to [9] If a key is pressed during transmission, the DTMF [#], [ ] corresponding to the key that was presses is sent.
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NX-220 ADJUSTMENT ■ Frequency and Signaling Panel Tuning Mode (C model only) The transceiver has been adjusted for the frequencies ■ Transceiver tuning (To enter tuning mode) shown in the following table. When required, readjust them To enter tuning mode, press the [ ] key while the trans- following the adjustment procedure to obtain the frequen- ceiver is in test mode.
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NX-220 ADJUSTMENT ■ Adjustment item supplement Adjustment Item Description “Counterclockwise Volume” is adjusted at the minimum volume position. Counterclockwise Volume “Clockwise Volume” is adjusted at the maximum volume position. These adjustments can correct the volume variation. Both “Counterclockwise Volume” and “Clockwise Volume” must be adjusted.
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NX-220 ADJUSTMENT ■ Adjustment item and Adjustment range NV (NXDN Very Adjusutment Panel Adjust item (Analog Wide) (Analog Narrow) (NXDN Narrow) Narrow) Order item tuning test Number Adjustment range 1 point ADJ Counterclockwise Common ✓ ✓ Volume Section 2 1~256...
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■ Nut wrench In order to turn the volume nut and the channel selector nut, use a recommendation tool. + Terminal (Red) KENWOOD part No.: W05-1123-00 – Terminal (Black) ■ Battery Jig (W05-0909-00) Connect the power cable properly between the battery...
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NX-220 ADJUSTMENT Radio Check Section Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel test mode PC test mode Unit Terminal Unit Parts Method equipment 1. Frequency 1) CH-Sig: 1-1 1) Test Channel f. counter Panel Check an internal 155.099962~...
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NX-220 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 4. Receive * This adjustment can 1) Adj item: [Receive Panel [PC test [PC test mode] 2.5V±0.1V...
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NX-220 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 10. Single 1) Adj item: [TONE] 1) Adj item: [Single Deviation Panel Panel [Panel Write the value as 1.50kHz±0.05kHz...
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NX-220 ADJUSTMENT Condition Measurement Adjustment Specifi cations / Item Test- Remarks Panel tuning mode PC test mode Unit Terminal Unit Parts Method equipment 13. Battery 1) Adj item: [BATT] 1) Adj item: [Battery Power meter Panel Press the PTT Warning Adjust: [✳✳✳]...
Modulation ............16K0F3E, 14K0F2D, 8K50F3E, 7K50F2D, 8K30F1E, 8K30F1D, 8K30F7W, 4K00F1E, 4K00F1D, 4K00F7W, 4K00F2D Analog measurements made per EN standards or TIA/EIA 603 and specifi cations shown are typical. Kenwood reserves the right to change specifi cations without prior notice or obligation.
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Suite 2504, 25/F, Tower 2, Nina Tower, No. 8 Yeung Uk Road, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex Tsuen Wan, New Territories, Hong Kong KENWOOD House, Dwight Road, Watford, Herts., 1 Ang Mo Kio Street 63, Singapore 569110 WD18 9EB United Kingdom...
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NX-220 NX-220 印刷电路板 印刷电路板 PC BOARD / PC BOARD / DISPLAY UNIT (X54-3760-XX) -10: C -12: C2 DISPLAY UNIT (X54-3760-XX) -10: C -12: C2 Component side view (J79-0312-09) Component side view (J79-0312-09) J79-0312 -09 C/3 – CP10 CP11 CP13 CP12...
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NX-220 NX-220 印刷电路板 印刷电路板 PC BOARD / PC BOARD / DISPLAY UNIT (X54-3760-XX) -10: C -12: C2 DISPLAY UNIT (X54-3760-XX) -10: C -12: C2 Foil side view (J79-0312-09) Foil side view (J79-0312-09) MIC+ J79-0312-09 MIC– J79-0312-09 A/3 Ref. No. Address Ref.
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NX-220 NX-220 印刷电路板 印刷电路板 PC BOARD / PC BOARD / TX-RX UNIT (X57-8040-10) Component side view (J79-0313-19) TX-RX UNIT (X57-8040-10) Component side view (J79-0313-19) J79-0313-19 Q106 C237 D502 R234 R165 R161 /FLDM Q510 IC201 C668 R507 R519 R529 IC101 R552...
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NX-220 NX-220 印刷电路板 印刷电路板 PC BOARD / PC BOARD / TX-RX UNIT (X57-8040-10) Foil side view (J79-0313-19) TX-RX UNIT (X57-8040-10) Foil side view (J79-0313-19) J79-0313-19 C204 C244 R226 R220 R131 C223 C152 D204 R231 C235 C202 D105 D202 D203 R235...