Kenwood TK-378G Service Manual Download Page 28

Page: 28 / 31

TK-378G

KMC-17/KMC-21(SPEAKER MICROPHONE)

KMC-17 (Speaker microphone)

KMC-21 (Speaker microphone)

Parts No.

Description

New

parts

Ref. No.

A02-0907-08

Case (Front)

A02-0908-08

Case (Rear)

B09-0316-08

Cap

D10-0606-08

Lever (PTT)

E11-0421-05

Phone jack

E30-3138-18

Curl cord

F07-0889-08

Silicon rubber (PTT)

G53-0569-08

Packing (MIC case)

J29-0440-08

Clip assy

J39-0601-08

Packing (MIC)

N46-2605-60

Screw (Clip assy)

N46-3016-60

Screw (Case)

N80-2005-41

Screw (MIC unit)

S50-1415-05

Tact switch (PTT)

T07-0290-05

Loudspeaker (1W, 8W)

T91-0534-08

Condenser MIC

Re-

marks

Parts No.

Description

New

parts

Ref. No.

A02-1979-08

Case (Front)

A02-0980-18

Case (Rear)

E11-0453-08

Phone jack

E30-3239-08

Curl cord

F07-1414-08

Cover

K29-5077-08

Lever (PTT)

S70-0444-08

Tact switch (PTT)

T07-0335-05

Loudspeaker

T91-0564-08

Condenser MIC

Re-

marks

KMC-17 Parts List

KMC-21 Parts List

Summary of Contents for TK-378G

Page 1: ...inet assy A02 3508 33 Button knob PTT K29 5334 23 Button knob MONI LAMP K29 5333 13 零件表 2 部件分解图 9 包装 10 调整 11 PC 板视图 TX RX 单元 X57 617X XX 23 原理图 29 方块图 33 电平图 35 KNB 14 KNB 15A 镍铬电池 36 KMC 17 KMC 21 扬声器话筒 37 规格 39 CONTENTS 目录目录目录目录目录 SUPPLEMENT 追补版 This service manual is aimed to revise and update the information on the PC Board that is used in the TK 378G transceiver having the serial number...

Page 2: ...0 6300 J 8 0 80 800 8000 K 35 V EX C C 7 3 F S L 1 H 0 0 0 J Refer to the table above 1 Type 2 Shape 5 Voltage rating 4 Temp coefficient 3 Dimension 6 Value 7 Tolerance 7 6 5 4 3 2 1 EX C K 7 3 F F 1 H 0 0 0 Z 7 6 5 4 3 2 1 Chip CH RH UJ SL Chip B F Chip resistor Carbon EX R K 7 3 E B 2 B 0 0 0 J 7 6 5 4 3 2 1 RESISTORS Chip B F Carbon resistor Nomal type EX R D 1 4 B B 2 C 0 0 0 J 7 6 5 4 3 2 1 1...

Page 3: ...SS 42 2C J69 0339 05 HAND STRAP 43 2C J69 0349 04 RING HAND STRAP 44 1B K29 5332 03 KNOB VOLUME 45 1A K29 5333 13 BUTTON KNOB MONI LAMP 46 1A K29 5334 23 BUTTON KNOB PTT 47 1A K29 5337 03 LEVER KNOB BATT RELEASE 48 1B K29 5434 03 KNOB 16CH A 3B N09 2319 05 BINDING HEAD SCREW SMA B 2A 3A N09 2331 05 SPECIAL SCREW BATT TERMINAL C 1B N14 0582 14 CIRCULAR NUT SMA D 1B N14 0591 04 CIRCULAR NUT VOL CH E...

Page 4: ...1C104K CHIP C 0 10UF K C116 CK73GB1H471K CHIP C 470PF K M4 C118 CK73GB1H471K CHIP C 470PF K C119 CK73FB1A105K CHIP C 1 0UF K C120 121 CK73GB1H471K CHIP C 470PF K C122 CK73FB1A105K CHIP C 1 0UF K C123 CK73GB1H391K CHIP C 390PF K C124 CC73GCH1H390J CHIP C 39PF J C125 126 CK73GB1H103K CHIP C 0 010UF K C128 CC73GCH1H040C CHIP C 4 0PF C C130 CK73GB1H471K CHIP C 470PF K C131 CC73GCH1H100D CHIP C 10PF D ...

Page 5: ...HIP C 0 5PF B M C307 CC73GCH1H220J CHIP C 22PF J C309 CK73GB1H471K CHIP C 470PF K C311 CC73GCH1H020B CHIP C 2 0PF B M C311 CC73GCH1H030B CHIP C 3 0PF B M4 C312 CC73GCH1H010B CHIP C 1 0PF B M4 C312 CC73GCH1H040B CHIP C 4 0PF B M C314 CC73GCH1H030B CHIP C 3 0PF B M C316 317 CK73GB1H471K CHIP C 470PF K C319 CK73GB1H471K CHIP C 470PF K M4 C320 CC73GCH1H030B CHIP C 3 0PF B M4 C325 326 CK73GB1H471K CHIP...

Page 6: ...K73GB1J332J CHIP R 3 3K J 1 16W R92 RK73GB1J100J CHIP R 10 J 1 16W R93 RK73GB1J332J CHIP R 3 3K J 1 16W R94 RK73GB1J221J CHIP R 220 J 1 16W R95 RK73GB1J222J CHIP R 2 2K J 1 16W M L31 L40 1885 92 SMALL FIXED INDUCTOR 180NH M4 L32 L40 1005 85 SMALL FIXED INDUCTOR 10UH L35 L40 1275 92 SMALL FIXED INDUCTOR 12NH M L35 L40 2775 92 SMALL FIXED INDUCTOR 27NH M4 L36 L40 1085 85 SMALL FIXED INDUCTOR 0 10UH ...

Page 7: ...102J CHIP R 1 0K J 1 16W R160 RK73GB1J222J CHIP R 2 2K J 1 16W R161 RK73GB1J563J CHIP R 56K J 1 16W R162 RN73GH1J333D CHIP R 33K D 1 16W R163 RN73GH1J274D CHIP R 270K D 1 16W R164 RK73GB1J184J CHIP R 180K J 1 16W R165 RK73GB1J473J CHIP R 47K J 1 16W R166 RK73GB1J103J CHIP R 10K J 1 16W R167 RK73GB1J564J CHIP R 560K J 1 16W R168 RK73GB1J102J CHIP R 1 0K J 1 16W R169 RK73GB1J473J CHIP R 47K J 1 16W ...

Page 8: ...T D1 MA2S111 DIODE D2 MA2S376 VARIABLE CAPACITANCE DIODE D3 HVU131 DIODE D4 MA2S376 VARIABLE CAPACITANCE DIODE D5 HSC277 DIODE D6 MA360 VARIABLE CAPACITANCE DIODE D7 HSC277 DIODE M D7 HVC131 DIODE M4 D8 HZU5ALL DIODE D9 MA2S376 VARIABLE CAPACITANCE DIODE D10 HSC277 DIODE D11 MA2S376 VARIABLE CAPACITANCE DIODE D12 MA2S111 DIODE D13 14 DAN235E DIODE D15 HSC277 DIODE D16 MA2S111 DIODE D19 MA2S111 DIO...

Page 9: ... 2319 05 B M2x3 5 N09 2331 05 C NUT N14 0582 14 D NUT N14 0591 04 E M2 6x6 N30 2606 46 G M2x5 N67 2005 46 H φ2x4 5 N78 2045 46 I φ2x3 N79 2030 46 J φ2x5 N83 2005 46 2 35 Jx8 IC1 G 11 12 B 34 8 TX RX unit A 2 41 A 23 B 702 19 H TX RX unit B 2 10 H E I 5 703 7 45 33 13 47 16 2 5 4 4 M2 M3 J32 0925 04 14 22 50 9 37 H 17 21 26 27 15 20 18 24 6 21 ...

Page 10: ...0085 04 4 INSTRUCTION MANUAL B62 1288 10 36 HARDWARE FIXTURE SP MIC J21 4493 04 49 SCREW SET N99 2012 05 29 PACKING FIXTURE H12 1487 02 32 ITEM CARTON CASE H52 1557 02 51 HELICAL ANTENNA T90 0743 05 M T90 0744 05 M4 42 HAND STRAP J69 0339 05 705 39 HARDWARE FIXTURE ASSY HAND STRAP J21 8399 04 38 HARDWARE FIXTURE HAND STRAP J21 8393 04 43 RING HAND STRAP J69 0349 04 ...

Page 11: ... 1mV to 10V 9 Audio Generator AG Frequency Range 50Hz to 5kHz or more Output 0 to 1V 10 Distortion Meter Capability 3 or less at 1kHz Input Level 50mV to 10Vrms 11 Spectrum Analyzer Measuring Range DC to 1GHz or more 12 Tracking Generator Center frequency 50kHz to 600MHz Output Voltage 100mV or more 13 8W Dummy Load Approx 8Ω 3W 14 Regulated Power Supply 5V to 10V approx 3A Useful if ammeter equip...

Page 12: ...4009 03 for adjustment 2 Use the jig as follows 1 Place the TX RX unit on the jig and fix it with thirteen screws z 2 Solder the antenna terminal of the TX RX unit 3 Supply power from an external power supply Relay terminal 7 5V Jig Chassis Relay terminal 电源接口 Power module 功率模块 TX RX UNIT TX RX 单元 JIG 模板 Coaxial antenna connector 天线接口 z z z z z z z z z z 下面是调整时所需的部件 1 天线接口转换头此手持机的天线接口使用 SMA 终端使用...

Page 13: ...机必须连接到合适的假负载或功率仪在整个调整过程中扬声器输出必须经过8 Ω假负载并被连接到一个交流电压表和一个音频失真测试仪或一个SINAD测量仪 ADJUSTMENT 调整 450 470 MHz TEST Ch RX frequency MHz TX frequency MHz Low 450 05000 450 00000 Low 455 05000 455 00000 Center 460 05000 460 00000 High 465 05000 465 00000 High 469 95000 470 00000 Adjustment Frequency M 450 470 MHz 测试信道接收频率 MHz 发射频率 MHz Low 450 05000 450 00000 Low 455 05000 455 00000 Center 460 05000 460 0...

Page 14: ...TX Low Am meter 2 2A or less Adjust TX Center PC MODE TX High TX High Battery terminal voltage 7 5V PTT ON 3 Low Power TEST CH TX Low 1 0W 0 1W Adjust TX Low 1 0A or less PC MODE TX Center TX High TX High Battery terminal voltage 7 5V PTT ON 4 Max DEV TEST CH TX Low Deviation meter ANT 4 2kHz 50Hz Adjust TX Center Oscilloscope SP MIC connector According to PC MODE TX High AG the larger Wide AG 1kH...

Page 15: ...更低计算机模式 TX Center TX High TX High 电池终端电压 7 5V PTT 开启 3 低功率测试信道 TX Low 1 0W 0 1W 调整 TX Low 1 0A 或更低计算机模式 TX Center TX High TX High 电池终端电压 7 5V PTT 开启 4 最大 DEV 测试信道 TX Low 频偏仪天线 4 2kHz 50Hz 调整 TX Center 示波器扬声器话筒接口按照较大计算机模式 TX High 音频发生器宽 AG 1kHz 120mV 音频电压表频偏仪滤波器 LPF 15kHz HPF 关闭 PTT 开启窄测试信道 TX Center 2 1kHz PTT 开启按照较大 5 外部CTCSS AG 20MHz 方形波 600mVpp 频偏仪天线 VR3 使调整波形为方输入平衡频偏仪滤波器示波器 ...

Page 16: ... Power meter 0 75kHz 50Hz Devition TX Center Deviation meter Adjust TX High Oscilloscope PC MODE LPF 3kHz Wide HPF OFF PTT ON Narrow TEST CH TX Center 0 35kHz PTT ON 12 DTMF TEST CH TX Center 2 5kHz 0 1kHz Deviation LPF 15kHz Adjust HPF OFF PC MODE PTT ON Wide Narrow TEST CH TX Center 1 25kHz PTT ON 13 TONE TEST CH TX Center 3 0kHz 0 1kHz Deviation LPF 15kHz Adjust HPF OFF PC MODE PTT ON Wide Narr...

Page 17: ...nter 0 80kHz M4 20Hz M4 计算机模式 TX High LPF 3kHz 宽 HPF 关闭 PTT 开启窄测试信道 TX Center 0 42kHz 40Hz PTT 开启 11 DQT 测试信道 TX Low 功率仪 0 75kHz 50Hz 频偏 TX Center 频偏仪调整 TX High 示波器计算机模式 PTT 开启宽 LPF 3kHz HPF 关闭窄测试信道 TX Center 0 35kHz PTT 开启 12 DTMF 测试信道 TX Center 2 5kHz 0 1kHz 频偏 LPF 15kHz 调整 HPF 关闭计算机模式宽 PTT 开启窄测试信道 TX Center 1 25kHz PTT 开启 13 TONE 测试信道 TX Center 3 0kHz 0 1kHz 频偏 LPF 15kHz 调整 HPF 关闭计算...

Page 18: ...INAD or Wide 118dBm 0 28µV Oscilloscope more MOD 1kHz 3kHz Narrow 117dBm 0 316µV MOD 1kHz 1 5kHz 3 Squelch Open 1 TEST CH RX Center PC key Adjust to the Adjust SSG OUT squelch PC MODE 123dBm 0 158µV threshold point Wide 2 TEST CH RX Center Narrow SSG OUT 122dBm 0 178µV 4 Squelch Tight 1 TEST CH RX Center Adjust to the Adjust SSG OUT 116dBm 0 35µV squelch PC MODE threshold point Wide Narrow 2 TEST ...

Page 19: ...D 宽 118dBm 0 28µV 示波器或更高 MOD 1kHz 3kHz 窄 117dBm 0 316µV MOD 1kHz 1 5kHz 3 静噪抑制电路 1 测试信道 RX Center 计算机键调整到噪音抑打开调整标准信号发生器输出制电路临限点计算机模式 123dBm 0 158µV 宽 2 测试信道 RX Center 窄标准信号发生器输出 122dBm 0 178µV 4 静噪抑制电路 1 测试信道 RX Center 调整到静噪临限点密闭调整标准信号发生器输出计算机模式 116dBm 0 35µV 宽窄 2 测试信道 RX Center 标准信号发生器输出 115dBm 0 398µV 5 静噪抑制电路 1 测试信道 RX Center 检查静噪必须被打开检查 SQ 电平 SQL5 计算机模式标准信号发生器输出 118dBm 0 28µV 2...

Page 20: ...figure 2 fH 3 Sensitivity 1 TEST CH Center SSG ANT Check 12dB SINAD or Check SSG OUTAF VTVM more Wide 118dBm 0 28µV Oscilloscope MOD 1kHz 3kHz Narrow 117dBm 0 316µV MOD 1kHz 1 5kHz 4 Squelch Open 1 TEST CH Center PC key Adjust to the Adjust SSG OUT squelch PC MODE Wide 123dBm 0 158µV threshold point 2 TEST CH Center Narrow SSG OUT 122dBm 0 178µV 5 Squelch Tight 1 TEST CH Center Adjust to the Adjus...

Page 21: ...t Balance adjustment VR3 外部 CTCSS 输入平衡调整调整项目条件测量调整规格备注测试设备终端部件方法 BPF 波形图 1 图 2 M4 type 1 BPF fL Low 数字电压表计算机键 fL 55 调整 fc Center fC 100 计算机模式 fH High fH 160 2 BPF 测试信道 Low 轨迹发生器天线 TC301 TC302 TC303 按图 1 调整波形 fL Tra G setting 40dBm 频谱分析仪 BPF 测试信道 Center 按图 2 调整波形 fC 测试信道 High 按图 2 调整波形 fH 3 灵敏度 1 测试信道 Center 标准信号发生器天线检查 12dB SINAD 检查标准信号发生器输出音频电压表或更高宽 118dBm 0 28µV 示波器 MOD 1kHz ...

Page 22: ...89 C165 IC12 1 16 32 17 C192 C213 CP11 CP3 CP4 CP8 CP9 CP5 CP7 CP12 CP13 CP14 CP18 CP16 CP17 CP15 R140 R177 R178 GND PTT LAMP MONI KOUT1 KOUT2 KIN0 KIN1 C100 C161 D15 L11 R104 R203 R61 R67 C138 C141 LV C179 C194 C200 C211 CP6 D18 R92 IC1 R249 R250 C229 C266 CP20 R100 R126 R256 R259 C220 C246 C255 IC17 1 4 8 5 X3 D23 C268 C269 C270 R260 R261 Q32 X2 C271 D19 R237 D16 C116 R251 R255 R165 R254 X57 617...

Page 23: ...171 CN5 SB TXAFI TXAFO RXAFO RXAFI ALTTONE AUX6 AUX5 AUX3 AUX2 AUX1 AUX4 5C 1 19 2 20 PTT IC4 1 8 16 9 IC8 1 3 5 4 IC9 1 3 5 4 J1 Q24 Q25 R110 R111 R112 R113 S1 R119 R124 R128 R129 R132 TAO M MUTE S MUTE A5 TAI A6 R142 R244 C107 C115 C146 C147 C155 C156 XF1 C262 C263 R72 C241 MIC1 C90 C158 C304 C306 C316 L17 L309 L310 R309 R310 R314 R318 TC301 TC302 L301 L302 L303 L304 L305 L306 L307 L308 L6 Q301 ...

Page 24: ...4 3 2 1 R151 R127 D G S R133 R137 R224 C162 R120 R121 C180 L41 CP10 CP2 R122 R118 L43 L40 Q15 C111 1 2 SP SP R241 R235 R234 R242 C259 R230 R179 R171 C219 R173 R183 R174 R35 R226 R221 C247 R220 R219 R225 C252 R215 C239 C235 C234 C240 C248 R326 CP19 C243 R218 R240 R239 R222 R149 R156 R64 R73 R68 Q13 C96 R55 R49 R45 R54 R62 C95 C71 R46 R50 C242 R160 R145 Q30 R205 L44 C173 R201 R185 C218 R200 L42 R135...

Page 25: ...A B C D E F G I H J K L M O N P Q S R 1 2 3 4 5 6 7 Note Component marked with a dot are Parts of layer 1 TK 378G SCHEMATIC DIAGRAM 原理图 ...

Page 26: ...TK 378G TK 378G 33 34 BLOCK DIAGRAM 方块图 ...

Page 27: ...60 05MHz IF1 49 95MHz IF2 450kHz AF 1kHz IC15 AF VR C206 C239 Q4 Q2 C30 Q3 C246 C27 C14 AF 1kHz RF 460 05MHz VCO RXLO D10 D5 1 2dBm C12 Power Module 4 0W RF 460 05MHz AF 1kHz RX TX C304 Q5 8 3dBm C11 C173 Q30 IC4 Local Level 6 7 4 10 3 5 D6 6 7 Q19 KNB 15A CIRCUIT DIAGRAM SPECIFICATIONS Voltage 7 2V 1 2V x 6 Charging current 1100mAh Dimensions 60 8W x 110 8H x 20 3D mm projections included Charger...

Page 28: ...IC case J29 0440 08 Clip assy J39 0601 08 Packing MIC N46 2605 60 Screw Clip assy N46 3016 60 Screw Case N80 2005 41 Screw MIC unit S50 1415 05 Tact switch PTT T07 0290 05 Loudspeaker 1W 8W T91 0534 08 Condenser MIC Re marks Parts No Description New parts Ref No A02 1979 08 Case Front A02 0980 18 Case Rear E11 0453 08 Phone jack E30 3239 08 Curl cord F07 1414 08 Cover K29 5077 08 Lever PTT S70 044...

Page 29: ...TK 378G 38 MEMO ...

Page 30: ...NB 14 7 2V 600mAh 电池 58 2 5 16 宽 135 5 5 16 高 32 1 1 4 长毫米英寸 400g 0 88lbs 带有 KNB 15A 7 2V 1100mAh 电池 58 2 5 16 宽 135 5 5 16 高 35 1 3 8 长毫米英寸 440g 0 97lbs 接收部以每 EIA 标准 EIA RS316B 进行测量灵敏度 EIA 12dB SINAD 0 25µV 宽 0 28µV 窄选择性 70dB 宽 65dB 窄互调 65dB 宽 60dB 窄假信号响应 60dB 音频功率输出 500mW 频率稳定性 2 5ppm 信道频率扩展 20MHz M M4 发射部以每 EIA 标准 EIA 316B 进行测量射频功率输出 4W 1W 寄生和谐波 70dB 调制 16KφF3E 宽 11KφF3E 窄频率调制噪音 45dB ...

Page 31: ...45dB Wide 40dB Narrow Audio Distortion Less than 5 Frequency Stability 2 5ppm Channel Frequency Spread 20MHz M M4 SPECIFICATIONS KENWOOD CORPORATION 2967 3 Ishikawa machi Hachioji shi Tokyo 192 8525 Japan KENWOOD SERVICE CORPORATION P O BOX 22745 2201 East Dominguez Street Long Beach CA 90801 5745 U S A KENWOOD ELECTRONICS CANADA INC 6070 Kestrel Road Mississauga Ontario Canada L5T 1S8 KENWOOD ELE...

Search results

Summary of Contents for TK-378G

Reviews:

Related manuals for TK-378G

Brands by name

Popular brands

Kenwood TK-378G, Service Manual

Search results

Summary of Contents for TK-378G

Reviews:

Related manuals for TK-378G

Brands by name

Popular brands