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Kenwood TK-885, Руководство по обслуживанию

Kenwood TK-885 - мощное радиоустройство для профессиональной коммуникации. Вы можете бесплатно загрузить сервисный мануал для этого устройства на нашем сайте. Получите подробную инструкцию по настройке и использованию радиостанции Kenwood TK-885 прямо сейчас с manualshive.com.

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X58-4850-11

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71

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PC BOARD VIEW / PC                 

TK-885

70

TX-RX UNIT (X57-6373-01) (A/2)  Foil side view

Component side

Foil side

Pattern 1
Pattern 2
Pattern 3
Pattern 4

Ref. No. Address

IC1

9M

IC2

13G

IC3

10E

IC4

9E

IC6

6M

IC7

9G

IC8

10G

IC9

8D

IC12

9H

Ref. No. Address

IC13

6G

IC15

9C

IC200 12Q
IC400 2K

Q1

8E

Q2

9J

Q7

10N

Q9

8B

Q11

7G

Ref. No. Address

Q12

7H

Q15 12K
Q18 11J
Q20

5G

Q22

9C

Q23 10J
Q24 10J
Q25

9C

Q26 10C

Ref. No. Address

Q27

7D

Q28

7D

Q29

6N

Q30

8D

Q31

8C

Q201 10Q
Q202 7M
Q204 7L
Q205 7J

Ref. No. Address

D1

13D

D2

13C

D3

13C

D4

13C

D5

13E

D6

12C

D15 11N
D16

7B

D17 13D

Ref. No. Address

D20

8C

D21

8B

D22

11I

D23 11H
D24

7E

D26

9B

D27

6P

D28

8B

D30

6R

Ref. No. Address

D31

8C

D34

8C

D35 12F

D207 7L
D209 5N
D210 6O

Содержание TK-885

Страница 1: ...been taken in the preparation of this manual Kenwood assumes no responsibility for errors or omissions Neither is any liability assumed for damages 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 文档版权信息 Kenwood Corporation 拥有版权 2006 保留所有权利 未经 Kenwood 公司预先书面同意 无论出于何种目的 均不得以任何形式或任何方式包 括电...

Страница 2: ...DED VIEW 45 PACKING 46 ADJUSTMENT 47 TERMINAL FUNCTION 64 PC BOARD VIEWS PLL VCO X58 4723 01 66 SUB UNIT X58 4850 11 66 TX RX UNIT X57 6373 01 A 2 67 TX RX UNIT X57 6373 01 B 2 73 SCHEMATIC DIAGRAM 77 BLOCK DIAGRAM 85 LEVEL DIAGRAM 88 SPECIFICATIONS 90 CONTENTS Cabinet Upper A01 2165 13 Cabinet Lower A01 2166 13 Modular jack E08 0877 05 Panel assy A62 0642 03 Key top K29 5422 02 UHF FM TRANSCEIVER...

Страница 3: ...within two feet 0 6 meter of the antenna DO NOT transmit until all RF connectors are verified se cure and any open connectors are properly terminated SHUT OFF and DO NOT operate this equipment near elec trical blasting caps or in an explosive atmosphere All equipment should be properly grounded before power up for safe operation This equipment should be serviced by a qualified techni cian only PRE...

Страница 4: ...to blow Check the vehicle ground polarity before installa tion to prevent wasted time and effort 2 Connect the positive power lead directly to the vehicle battery positive terminal Connecting the Positive lead to any other positive voltage source in the vehicle is not rec ommended 3 Connect the ground lead directly to the battery negative terminal 4 The cable provided with the radio is sufficient ...

Страница 5: ... up take the following precaution The rating of pin 7 SB of the accessory connector cable KCT 19 on the rear of the radio is 13 6V 0 75A Insert a 1A fuse if you use the SB pin for external equipment Accessory connector cable KCT 19 If you do not intend to use the 3 5 mm jack for the exter nal speaker fit the supplied speaker jack cap B09 0235 05 to stop dust and sand getting in 1 3 7 6 13 15 Speak...

Страница 6: ...5 TK 885 OPERATING FEATURES 1 2 5 6 7 8 9 11 10 3 4 ...

Страница 7: ...6 TK 885 OPERATING FEATURES ...

Страница 8: ... radio using the PC This feature is included in the FPU See panel tuning Firmware program Used when changing the main program ming mode of the flash memory 2 How to Enter Each Mode Mode Operation User mode Power ON Panel test mode B Power ON PC mode Received commands from PC Panel tuning mode Panel test mode A Firmware programming mode A Power ON 3 For the Panel Test Mode Setting method refer to A...

Страница 9: ...ector 25 pin case that converts the RS 232C logic level to the TTL level The KPG 46 connects the modular microphone jack of the TK 885 to the computers RS 232C serial port 5 4 Programming Software KPG 62D CPS Description The KPG 62D CPS is the programming software for the transceiver supplied on three 3 5 floppy disks This soft ware runs under MS Windows 95 98 on an IBM PC or com patible machine T...

Страница 10: ...the LED on the TK 885 lights and the checksum is displayed 8 If you want to continue programming other TK 885 re peat steps 4 to 7 Notes This mode cannot be entered if the Firmware program ming mode is set to Disable in the Programming software KPG 62D CPS When programming the firmware it is recommend to copy the data from the floppy disk to your hard disk before up date the radio firmware Directl...

Страница 11: ...is 2 Remove the pad as shown in Figure 1 3 Insert the KCT 19 cable into the chassis The wire harness band must be inside the chassis 4 Replace the DC cord bushing 5 Connect the KCT 19 to the TX RX unit A 2 as shown in Figure 2 6 Connect the KCT 19 to the external accessory by inserting the crimp terminal into the square plug both of which are supplied with the KCT 19 1 2 3 4 5 6 7 8 9 1 2 1 3 13 1...

Страница 12: ...o function 1 and 2 CN4 CN2 AM Speaker mute input 14 E 2 CN4 RXD Serial control data input RXD1 2 CN2 MM MIC mute input active high 15 E 3 CN4 TXD Serial control data output TXD1 2 CN2 DTC No function 1 LOK No function TXS Transmitter sense output FSW Foot switch input active low Note 1 The functions of A 2 A 5 A 13 when connector E is connected to CN2 and A 15 when connector E is connected to CN2 ...

Страница 13: ... No TXS Default No Yes MI LOK AM R5 0Ω R6 0Ω Function Default Yes No AM No Yes LOK Default DTC LOK TXS FSW R168 R84 R51 R13 Function Default 0Ω 0Ω 0Ω 0Ω No No No Yes LOK Yes No No No DTC Default No No Yes No TXS No Yes No No FSW Note The following parts are not installed at the time of shipping R5 R13 R24 R51 R84 and R167 R51 R13 R12 R167 R24 R94 R168 R6 R5 R84 TX RX unit A 2 Foil side view TX RX ...

Страница 14: ...l input LOK O No function 2 MM I MIC mute input 3 DTC I No function TXS O Transmitter sense output FSW I Foot switch signal input Foot sw on L LOK O No function CN3 1 HOR O Horn alert signal output Signal output for horn relay drive open collector L level during horn drive Max sink current 100mA L level when AUX A is on 2 E Earth 3 SB O Power output after power switch DC 13 6V 15 0 75A max CN4 1 L...

Страница 15: ...dio input TXAI Control TXAO O TX audio output TXAO Control LOK O No function LOK TX RX OPT O Option board select OP TX RX CODE1 O Option code 1 for voice C1 TX RX scrambler code 1 CODE2 O Option code 2 for voice C2 TX RX scrambler code 2 CODE3 O Option code 3 for voice C3 TX RX scrambler code 3 CODE4 O Option code 4 for voice C4 TX RX scrambler code 4 SQ O No function SQ TX RX TXD1 O Serial data o...

Страница 16: ...ied with the KCT 19 then insert the square plug into the KCT 19 connector 2 1 3 4 2 Modifying the Transceiver Modify the transceiver as follows to turn the power or the Horn Alert or Manual Relay function on and off with the igni tion key 1 Remove the lower half of the transceiver case 2 Set jumper resistors 0Ω R151 and R152 of the TX RX unit A 2 as shown in Table 1 Operation when KCT 18 is connec...

Страница 17: ...code cannot be changed using the trans ceiver keys Only one scrambler code can be set into the transceiver If you want to change the code you must use the KPG 62D CPS to reconfigure the scrambler code 5 2 Voice Scrambler Board Connection Modification 1 Remove the upper half of the case of the TK 885 2 Remove R529 and R571 on the Control unit X57 637 B 2 Code 4 C4 Code 3 C3 Code 2 C2 Code 1 C1 TX R...

Страница 18: ...ors on the transceiver 3 Secure the switch unit board to the chassis with a screw The notch in the board must be placed at the front left side 4 Attach the cushion on the top of the KAP 1 switch unit 6 2 Modifying the Transceiver Horn alert The signal from pin 4 of IC7 on the TX RX unit turns Q4 and Q6 on and off and drives KAP 1 HA relay to drive the horn with a maximum of 2A The default output i...

Страница 19: ... 19 CN7 PA R109 ANT Fig 11 7 Fitting the Control Panel Upside Down The TK 885 control panel can be fitted upside down so the transceiver can be mounted with its internal speaker in the upper half of the case facing down in your car 1 Remove the control panel and the TX RX unit B 2 control section Fig 12 2 Fold the flat cable in the opposite direction 3 Rotate the control section 180 degrees 4 Inse...

Страница 20: ... speaker jack on the rear of the transceiver 8 2 KES 4 Option The KES 4 is an external speaker used with the accessory connection cable Connection procedure 1 Install the KCT 19 in the transceiver See the KCT 19 sec tion 2 Insert the crimp terminal into the square plug supplied with the KCT 19 3 Connect CN5 of the transceiver to connector C of the KCT 19 instead of to the internal speaker connecto...

Страница 21: ...ut of band signal components The low noise amplifier LNA Q201 uses a bipolar transistor to achieve wide band and low distortion amplification The signal passes through a BPF and BEF and is then down converted with the first local signal by IC200 then con verted to the first IF signal of 44 85MHz The first local signal passes through an LPF and an attenuator to eliminate un wanted harmonics compone...

Страница 22: ...C502 sums the AF signal and the DTMF signal and returns the resulting signal to the TX RX unit The signal AFO sent to the TX RX unit is input to the D A converter IC5 The AFO output level is adjusted by the D A converter The signal output from the D A converter is added with the BEEP signal BPO and the resulting signal is input to the audio power amplifier IC10 The AF signal from IC10 switches bet...

Страница 23: ...pplied to D102 and D104 by using the control voltage CV through CN101 The control voltage is changed by turning the trimmer capacitor IC109 The output from Q103 is applied to the buffer amplifier Q106 to generate a VCO output signal This signal is used as a drive input signal or a local signal of the first mixer Since a signal output from Q160 is input to the PLL IC it passes through CN101 and buf...

Страница 24: ...ig 6 Transmitter system IC504 IC3 Q103 IC711 MIC AF AMP TA75S01F MIC KEY INPUT AF AMP IDC LPF TC35453F IC511 CPU 30620M8 394GP SUM AMP TA75W558FU X1 VCXO 16 8MHz VCO 2SK508NV K53 IC300 PLL SA7025DK Q106 RF AMP 2SC4226 R24 Q300 BUFFER 2SC4215 Y Q202 RF AMP 2SC4093 R27 Q204 RF AMP 2SC3357 Q205 ANT RF AMP 2SC2954 IC400 POWER AMP M68762SL Q7 BUFFER 2SC5110 O IC508 SHIFT REG IC511 CPU Q10 SW Q11 SW IC3...

Страница 25: ...L IC300 6 Controls the D A converter IC5 and adjusts the volume modulation and transmission power Fig 8 APC circuit RF AMP Q202 204 RF AMP Q205 POWER AMP IC400 APC DRIVER Q19 DB B VR1 Q20 PRI DRIVER DC AMP IC6 PC SW Q17 ANT SW D209 LPF ANT Q29 POWER DET D27 30 Q21 APC CONTROL H L SW H L IC7 5pin 25W High power H 8T TX 8V TX PC SW ON D15 PC IC5 23pin IC5 D A converter IC300 PLL IC7 Shift register I...

Страница 26: ...lled when replacing the flash memory EEPROM Note The EEPROM stores tuning data Deviation Squelch etc Realign the transceiver after replacing the EEPROM Display Circuit The CPU IC511 controls the shift register IC508 and dis play LEDs When the LG line goes high when the transceiver is busy Q508 turns on and the green LED on D511 lights In transmit mode the LR line goes high Q509 turns on and the re...

Страница 27: ...04 An MSK signal is output from the audio processor according to the data AFDAT from the CPU The signal is summed with a MIC MSK signal by the audio processor IC504 and the re sulting signal passes through an analog switch IC506 and goes to the TX RX unit MO MO is summed with the external pin DI line by the sum ming amplifier IC3 and the resulting signal goes to the D A converter IC5 The D A conve...

Страница 28: ...D A converter IC5 is used to adjust TONE and MO modulation beep AF volume TV voltage FC reference volt age and PC POWER CONTROL voltage level Adjustment values are sent from the CPU as serial data The D A converter has a resolution of 256 and the following relationship is valid D A output Vin VDAref 256 n VDAref Vin Analog input VDAref D A reference voltage n Serial data value from the microproces...

Страница 29: ... goes high Q28 turns on SB SW Q27 turns on and power SB is supplied to the set This circuit has an over voltage protection circuit If a DC voltage of 20 V or higher is applied to the power cable D34 turns on and a voltage is applied to the base of Q31 This voltage turns Q31 on and turns Q28 and SBSW off This circuit has a TIMED POWER OFF TOF function which can be programmed by software It is contr...

Страница 30: ...RTM I FFSK demodulation data input tim ing pulse input 18 MICDAT O MIC key data output 19 CP O PLL IC clock output 20 BEEP O Beep data output 21 AFRDT I FFSK demodulation data input 22 AFREG1 O AF IC register switching data output 1 23 AFREG2 O AF IC register switching data output 2 24 EEPDAT O EEPROM data output 25 EN O D A converter IC data strobe output 26 AFCLR O FFSK flame reset output 27 RXC...

Страница 31: ...GND 63 70 A7 A0 Flash memory address bus 71 74 KEY1 KEY4 I O Key matrix data input output 1 4 75 MINDAT O Common data output 76 78 KEY5 KEY7 I Key matrix data input 5 7 79 86 D7 D0 Flash memory data bus 87 DTMDAT I DTMF decode IC data input 88 AUXDTC I External DTC input 89 MICBLC O MIC back light control output 90 POWSW I Power switch input 91 ANLSQL I Squelch level input 92 PTT I PTT switch inpu...

Страница 32: ...Y TX power switching H TX L RX 14 Q5 T R TX RX switching H RX L TX 15 OE Output enable 16 VDC 5V Terminal function TX RX unit IC7 Pin No Port Name Function 1 STB ES Strobe 2 SI DT Data 3 CLK CK Clock 4 Q1 HORN Horn alert H ON L OFF Auxiliary A H ON L OFF 5 Q2 HL RF power switching H High L Low 6 Q3 TIMOFF Timed power off H Power off 7 Q4 CODE3 Option board data 3 H ON L OFF 8 VSS GND 9 NC 10 NC 11...

Страница 33: ...Audio mute 1 H Mute L Unmute 5 Q2 LOK No function 6 Q3 STR VCO shift switching H TX L RX 7 Q4 DM DET mute H RX L TX 8 VSS GND 9 QS IC7 data output 10 NC 11 Q8 SQ No function 12 Q7 CODE2 Option board data 2 H ON L OFF 13 Q6 CODE1 Option board data 1 H ON L OFF 14 Q5 OPT Option board control H ON L OFF Auxiliary B 15 OE Output enable 16 VDC 5V ...

Страница 34: ...ection Q1 DC switch When PTT on CN1 is H DI on CN1 is muted Q2 Ripple filter 8CL Q4 HOR switch IGN Q5 HOR SW control IGN Q6 HOR SW control Active while HNC is H Q7 Buffer amp HT Q8 AF mute Active while AM1 is H Q9 AF mute Active while power switch is off Q10 8R SW control Active while T R is H Q11 8R switch Active while Q10 is active Q12 8T switch Active while Q13 is active Q13 8T SW control Activ...

Страница 35: ...n D15 HT switch D16 Reverse protection D17 Protection D20 Reverse protection IGN D21 Protection 5V IGN D22 23 W N switch D24 Over current protection D26 Reverse protection D27 Power detection D28 Protection D30 Power detection D31 Reverse protection D32 Surge absorption B D34 Protection Active while power supply voltage is more than 20V D35 Charge DEO D37 Reverse protection D207 Usable temperature...

Страница 36: ... H Q515 Key backlight switch D501 Surge absorption BLC D502 Over current PSB protection D503 Surge absorption CM D504 Surge absorption PTT TXD D505 Surge absorption HOOK RXD D507 MIC mute MM MM1 D508 Limiter MIC D509 Limiter ASQ D510 Reverse current C575 charge protection D511 BUSY TX LED Lights green while busy red while TX D512 517 Key backlight Active while KBLC is H D518 Current regulation Key...

Страница 37: ...30 2151 05 LED RED GREEN D512 517 B30 2171 05 LED C1 15 CK73GB1H102K CHIP C 1000PF K C16 C92 0507 05 CHIP TAN 4 7UF 6 3WV C17 C92 0628 05 CHIP TAN 10UF 10WV C18 C92 0507 05 CHIP TAN 4 7UF 6 3WV C19 CC73GCH1H100D CHIP C 10PF D C20 CK73GB1E103K CHIP C 0 010UF K C21 22 CK73GB1H102K CHIP C 1000PF K C23 C92 0507 05 CHIP TAN 4 7UF 6 3WV C24 CK73GB1H102K CHIP C 1000PF K C25 C92 0507 05 CHIP TAN 4 7UF 6 3...

Страница 38: ...3GCH1H220J CHIP C 22PF J C151 CK73GB1H102K CHIP C 1000PF K C152 CE04EW1E102M ELECTRO 1000UF 25WV C153 154 CK73GB1E103K CHIP C 0 010UF K C155 CK73GB1H102K CHIP C 1000PF K C156 157 CK73GB1E103K CHIP C 0 010UF K C158 159 CC73GCH1H100D CHIP C 10PF D C160 CK73GB1C104K CHIP C 0 10UF K C161 CC73GCH1H101J CHIP C 100PF J C162 C92 0585 05 CHIP TAN 4 7UF 16WV C164 165 CK73GB1H471K CHIP C 470PF K C166 CK73GB1...

Страница 39: ... K C539 CK73GB1H272K CHIP C 2700PF K C540 CC73GCH1H271J CHIP C 270PF J C541 CC73GCH1H100D CHIP C 10PF D C542 CC73GCH1H271J CHIP C 270PF J C543 CK73GB1H272K CHIP C 2700PF K C544 CC73GCH1H030C CHIP C 3 0PF C C545 CK73GB1H102K CHIP C 1000PF K C546 CK73GB1H122K CHIP C 1200PF K C547 CK73GB1H102K CHIP C 1000PF K C548 C92 0712 05 CHIP TAN 22UF 6 3WV C549 550 CK73GB1C104K CHIP C 0 10UF K C552 CK73GB1C333K...

Страница 40: ...D INDUCTOR L6 L34 4459 05 COIL L7 L40 8281 37 SMALL FIXED INDUCTOR 0 820UH L8 L92 0138 05 FERRITE CHIP L9 L40 1575 44 SMALL FIXED INDUCTOR 15 0NH L10 L92 0191 05 FERRITE CHIP L205 L40 1278 67 SMALL FIXED INDUCTOR 12NH L206 L40 1878 67 SMALL FIXED INDUCTOR 18NH L210 212 L39 1272 05 TOROIDAL COIL L216 L40 3371 34 SMALL FIXED INDUCTOR 33NH L217 L40 1571 34 SMALL FIXED INDUCTOR 15NH L218 L40 2771 34 S...

Страница 41: ... 47K J 1 16W R109 R92 0670 05 CHIP R 0 OHM R110 RK73GB1J470J CHIP R 47 J 1 16W R111 112 RK73GB1J472J CHIP R 4 7K J 1 16W R113 R92 1252 05 CHIP R 0 OHM R114 RK73GB1J392J CHIP R 3 9K J 1 16W R115 R92 1252 05 CHIP R 0 OHM R116 RK73GB1J473J CHIP R 47K J 1 16W R119 RK73GB1J103J CHIP R 10K J 1 16W R120 RK73GB1J392J CHIP R 3 9K J 1 16W R121 122 RK73GB1J472J CHIP R 4 7K J 1 16W R123 RK73GB1J153J CHIP R 15...

Страница 42: ...0 OHM R507 508 RK73GB1J154J CHIP R 150K J 1 16W R509 RK73GB1J103J CHIP R 10K J 1 16W R510 RK73GB1J105J CHIP R 1 0M J 1 16W R511 RK73GB1J102J CHIP R 1 0K J 1 16W R512 RK73GB1J681J CHIP R 680 J 1 16W R513 R92 1252 05 CHIP R 0 OHM R514 RK73GB1J102J CHIP R 1 0K J 1 16W R515 RN73GH1J913D CHIP R 91K D 1 16W R516 RK73GB1J102J CHIP R 1 0K J 1 16W R517 RK73GB1J103J CHIP R 10K J 1 16W R518 RN73GH1J333D CHIP...

Страница 43: ...77 RK73GB1J223J CHIP R 22K J 1 16W R678 RK73GB1J103J CHIP R 10K J 1 16W R679 RK73FB2A390J CHIP R 39 J 1 10W R680 RK73FB2A222J CHIP R 2 2K J 1 10W R682 RK73GB1J473J CHIP R 47K J 1 16W R683 RK73GB1J103J CHIP R 10K J 1 16W R701 RK73GB1J102J CHIP R 1 0K J 1 16W R702 RK73GB1J101J CHIP R 100 J 1 16W R705 706 RK73GB1J473J CHIP R 47K J 1 16W R710 711 RK73GB1J104J CHIP R 100K J 1 16W R712 713 RK73GB1J473J ...

Страница 44: ...302 2SC3722K S TRANSISTOR Q401 403 DTC114EE DIGITAL TRANSISTOR Q501 DTC314TU DIGITAL TRANSISTOR Q502 DTC144EE DIGITAL TRANSISTOR Q503 2SC4617 S TRANSISTOR Q507 DTC144EE DIGITAL TRANSISTOR Q508 509 2SC4617 S TRANSISTOR Q510 2SC4619 TRANSISTOR Q511 DTA144WE DIGITAL TRANSISTOR Q512 DTC114EE DIGITAL TRANSISTOR Q513 2SC2873 Y TRANSISTOR Q515 DTC114EE DIGITAL TRANSISTOR C102 CK73GB1H471K CHIP C 470PF K ...

Страница 45: ... 105 2SC4081 TRANSISTOR Q106 2SC4226 R24 TRANSISTOR C1 CK73GB1C104K CHIP C 0 10UF K C2 3 C92 0505 05 CHIP TAN 10UF 16WV R1 RK73GB1J103J CHIP R 10K J 1 16W R3 R92 1252 05 CHIP R 0 OHM Q1 2SC2412K S TRANSISTOR Ref No Address Parts No Description Ref No Address Parts No Description New Desti parts nation New Desti parts nation SUB UNIT X58 4850 11 PLL VCO X58 4723 01 SUB UNIT X58 4850 11 ...

Страница 46: ... B C 1 30 28 49 15 32 25x2 11 13 9 707 707 31 IC400 28 29x2 J501 23 6 45 14 21 30 34 2 30 3 33 J1 TX RX unit Control unit Sub unit Cx2 703 701 702 B B Cx2 Dx11 708 Ax2 C C 705 706 A A A M2 6 x 6 OC BLK N32 2606 45 B M3 x 8 N67 3008 46 C M2 6 X 6 Br Tap N87 2606 46 D M2 6 x 12 Br Tap N87 2612 46 ...

Страница 47: ...ag H25 0103 04 5 Cap B09 0235 05 12 DC cord E30 3339 05 24 Fuse F51 0016 05 43 Bracket J29 0627 23 37 Inner packing case H12 1391 03 47 Screw set N99 0395 05 36 Polystyrene foamed fixture R H10 6619 12 39 Protection bag H25 0720 04 8 Instruction manual B62 1263 00 35 Polystyrene foamed fixture F H10 6618 12 40 Item carton case H52 1740 02 ...

Страница 48: ...n and off System Up Down Shift off Volume Up Down Volume up down Controls FCN not appears PTT Used when making a transmission Changes wide and narrow A Sets to the tuning mode B Shift on C RF power high and low D Changes signalling CALL Monitor on and off System Up Down Changes channel Volume Up Down Volume up down Note If a A B C D key is pressed during trans mission the DTMF corresponding to the...

Страница 49: ...QT D754I 9 None DTMF tone 9 10 None Single tone 1200Hz HSD out 11 None Single tone 1200Hz MODEM out 12 None Single tone 1800Hz MODEM out 13 None FFSK PN pattern 14 FFSK code FFSK code Preparations for tuning the transceiver Before attempting to tune the transceiver connect the unit to a suitable power supply Whenever the transmitter is turned the unit must be con nected to a suitable dummy load i ...

Страница 50: ...EQ xxx D HPOW xxx B LPOW xxx BAL xxx w BAL xxx 5 5 5 5 5 5 5 5 5 5 5 5 point tuning 5 point tuning 3 point tuning MAX xxx w MAX xxx 3 point tuning QT xxx w QT xxx 3 point tuning DQT xxx w DQT xxx DTMF xxx w DTMF xxx FFSK xxx w FFSK xxx TONE xxx w TONE xxx B 3 point tuning Squelch level RSSI low level RSSI high level Squelch tight level SQL xxx w SQL xxx 3 point tuning 3 point tuning B LRSI xxx w L...

Страница 51: ...ensitivity Frequency Range 10Hz to 1000MHz Frequency Counter Frequency Stability 0 2ppm or less 7 Ammeter 20A 8 AF Volt Meter Frequency Range 50Hz to 10kHz AF VTVM Voltage Range 1mV to 3V 9 Audio Generator AG Frequency Range 20Hz to 20kHz or more Output 0 to 1V 10 Distortion Meter Capability 3 or less at 1kHz Input Level 50mV to 10Vrms 11 4Ω Dummy Load Approx 4Ω 10W 12 Regulated Power Supply 13 6V...

Страница 52: ...51 TK 885 1 8 1 BLC 2 PSB 3 E 4 PTT 5 ME 6 MIC 7 HOOK 8 CM ...

Страница 53: ...t equipment Unit Terminal Adjustment Unit Parts Method Specifications Remarks Condition Item 1 PLL lock 1 Set test mode DVM TX RX TP1 PLL TC106 1 5V Receive 0 1V voltage CH CH3 Sig1 Power meter A 2 PTT OFF Receive TC109 1 5V Transmit PTT ON Transmit 2 CH CH2 Sig1 Check 8 0V or less PTT OFF Receive PTT ON Transmit Common Section L6 VR1 TX RX UNIT A 2 PLL VCO TC106 TP1 TC109 Repair Jig Chassis Use j...

Страница 54: ...52 TK 885 53 Power switch TX RX indicator Microphone jack A B C D CALL Volume up down System up down L6 VR1 TX RX UNIT A 2 PLL VCO TC106 TP1 TC109 ...

Страница 55: ...SSG MOD 1 5kHz Oscilloscope AF output 1V 4Ω AG 2 C SENS SSG freq 370 050MHz 3 H SENS Adjust 150 SSG freq 389 950MHz 3 Squelch 1 Set test mode Squelch must be Select L SQL in tuning mode closed once SSG freq 350 050MHz Then adjust for SSG output Sensitivity squelch open point value of 12dB SINAD SSG MOD 1 5kHz Narrow 2 C SQL SSG freq 370 050MHz 3 H SQL SSG freq 389 950MHz 4 wL SQL wC SQL wH SQL SSG...

Страница 56: ...53 TK 885 55 ...

Страница 57: ...G freq 350 050MHz SSG output 70dBm SSG MOD 1 5kHz Narrow 2 C HRSI SSG freq 370 050MHz 3 H HRSI SSG freq 389 950MHz 4 wL HRSI wC HRSI wH HRSI SSG freq 70dBm SSG output Sensitivity value of 12dB SINAD SSG MOD 3 0kHz Wide 6 Squelch 1 Set test mode Check Squelch must be opened check CH CH1 Sig1 Wide Narrow SSG freq 370 050MHz SSG output 15dB SINAD level 2 SSG output OFF Squelch must be closed Wide Nar...

Страница 58: ...54 TK 885 57 ...

Страница 59: ...OW PTT ON 4 H2 HPOW PTT ON 5 H HPOW PTT ON 4 Low power 1 Set test mode Power meter 5 0W 0 5W Select LPOW in tuning mode L LPOW PTT ON 2 L2 LPOW PTT ON 3 C LPOW PTT ON 4 H2 LPOW PTT ON 5 H LPOW PTT ON 5 Power check 1 Set test mode Power meter Rear ANT Check 25W 1W 8A or less CH CH1 Sig1 panel CH2 Sig1 Ammeter DC IN CH3 Sig1 PTT ON 6 Modulation 1 Set test mode Power meter Rear ANT Make the de Wide N...

Страница 60: ...55 TK 885 59 ...

Страница 61: ...AG panel LPF 15kHz HPF OFF De emphasis OFF PTT ON 2 C MAX PTT ON 3 H MAX PTT ON 4 w MAX PTT ON 8 MIC 1 Set test mode Check 1 5kHz 0 05kHz Narrow sensitivity CH CH1 Sig1 3 0kHz 0 2kHz Wide check AG 1kHz 4mV PTT ON 9 QT deviation 1 Set test mode 0 35kHz Narrow 50Hz Wide Narrow Select QT in tuning mode 0 75kHz Wide L QT Deviation meter filter LPF 3kHz HPF OFF PTT ON 2 C QT PTT ON 3 H QT PTT ON 4 w QT...

Страница 62: ...56 TK 885 61 ...

Страница 63: ...e 0 2kHz Wide Deviation meter filter meter LPF 15kHz Oscilloscope HPF OFF PTT ON AF VTVM Front MIC AG panel 2 w DTMF PTT ON 12 FFSK 1 Set test mode 1 5kHz Narrow 0 1kHz Wide Narrow deviation Select FFSK in tuning mode 3 0kHz Wide Deviation meter filter LPF 15kHz HPF OFF PTT ON 2 w FFSK PTT ON 13 TONE 1 Set test mode 1 5kHz Narrow 0 1kHz Wide Narrow deviation Select TONE in tuning mode 3 0kHz Wide ...

Страница 64: ...57 TK 885 45 63 ...

Страница 65: ...nal 25 EN DA converter enable signal 26 APTT No function 27 CP PLL clock 28 DTC No function 29 TXD Serial data 30 RXD Serial data 31 OE Serial data 32 FSW Foot switch signal 33 E Ground CN101 VCO TX RX Unit Pin No Name Function 1 ST Switched transmit input H Transmit 2 HT RF output 3 E Ground 4 9CL 9V input 5 8CL 8V input 6 MD Modulation input 7 CV Control voltage input CN501 Control Unit Pin No N...

Страница 66: ...58 TK 885 65 ...

Страница 67: ...11 C129 R118 L107 Q102 Q104 Q105 Q106 L105 L106 R119 R120 CN101 CV MD 8CL 9CL E HT ST J72 0733 02 G S D G S D C107 C114 C121 C118 C111 C123 D105 C120 R116 C110 C108 R101 R102 TC106 L101 TC109 R117 R106 R105 C113 C124 L111 R112 R113 L102 C127 D101 D102 D103 D104 L108 C128 Q101 Q103 L103 L104 C102 C126 C117 C119 R110 C125 R107 C115 C104 C105 R103 R108 R104 C116 L110 L109 C122 R115 R109 R114 R111 C12...

Страница 68: ...5 C446 R422 C140 R115 C422 R417 C131 C272 CN4 C230 R234 L228 R221 D12 D13 D8 C70 C319 R314 R313 C318 C314 R310 C37 C306 IC14 C4 C8 C13 C5 C2 C3 C6 C9 C7 C295 C444 C294 C97 C423 C125 C293 C312 R309 R121 C100 R224 C239 R129 R98 R58 Q302 Q301 R300 C36 C16 C176 R302 R305 R303 R301 R2 R50 C905 C907 C909 C912 C923 C930 C928 C59 R68 C926 C916 C911 C919 L922 L913 L914 L915 C935 L918 R903 R904 R908 L906 C9...

Страница 69: ... C250 C247 R239 C248 C430 C409 C431 C252 C249 Q205 C148 C78 C144 R69 D20 D26 R39 8C 5C 8T TR SB 8R DT ES 9C Q12 R62 R106 C197 C198 C195 C196 C80 R130 R36 R411 R406 C24 R52 R28 R29 L212 R131 R104 R238 L3 C55 Q204 C251 D23 R107 R31 R22 R18 R140 C134 R26 R27 R147 C138 C145 C67 R79 D15 C30 R34 R231 R425 SP R181 R182 Q22 Q25 Q29 Q9 X1 LD QAD DEO KEY TP3 W N CK BPO BP C282 C205 C283 TV C287 R159 R164 R1...

Страница 70: ... E C10 C12 C11 C14 C15 CN3 C93 C443 C178 L303 R308 C107 R257 R97 C316 R318 R316 R319 C322 CN5 R7 R8 L211 R110 R232 R48 R47 C98 C96 C63 C31 C429 E L221 R89 R112 R418 IC401 1 4 5 8 R419 Q401 R135 C45 R228 R230 C102 TP3 C243 R233 R113 C447 C448 D11 R6 R74 R176 R60 R139 R149 C267 L222 R120 R415 R416 C233 C77 C320 R307 R304 R99 R91 C90 XF1 Q13 Q16 C106 C105 C331 L306 C330 L305 TP1 IN OUT TP2 L223 Q32 C...

Страница 71: ...19 R720 R721 R724 R725 CN501 1 10 Q501 CN502 33 1 L501 L502 L504 L505 L508 C629 Q515 E 5C CS CK SID NC NC LEDA LEDK NC E FSW OE RXD TXD DTC CP APTT EN EP ES LD RSSI DT CK KEY 8C SB SB IGN AHK MI ME AFO MM DEO PSW 8R BEEP TO MO T R W N IC508 CM MIC PTT TXD PSB BLC D513 E ME HOOK RXD R682 C592 C583 IC501 1 1 4 4 5 5 8 8 C513 C535 IC503 R507 C518 IC502 D517 R517 C593 C511 R508 C527 C575 R545 R551 D51...

Страница 72: ... D E F G H I J K L M N O P Q R S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 IC508 CM MIC PTT TXD PSB BLC D513 E ME HOOK RXD R682 C592 C583 IC501 1 1 4 4 5 5 8 8 C513 C535 IC503 R507 C518 IC502 D517 R517 C593 C511 R508 C527 C575 R545 R551 D512 D515 D516 R514 R510 R612 D520 R572 1 8 9 16 C524 R525 R526 C506 R502 C574 D510 R548 C540 C547 R552 R523 R531 Q511 C510 C710 C712 1 1 8 4 5 3 4 5 C714 IC710 R710 R713 R...

Страница 73: ...T R P N L J H F D B S Q O M K I G E C A 1 3 5 7 2 4 6 SCHEMATIC DIAGRAM TK 885 Note Components marked with a dot are parts of patterun 1 80 ...

Страница 74: ...81 A C E G I K M O Q S B D F H J L N P R T 1 3 5 7 2 4 6 TK 885 SCHEMATIC DIAGRAM Note Components marked with a dot are parts of patterun 1 ...

Страница 75: ...TK 885 TK 885 TK 885 87 BLOCK DIAGRAM ...

Страница 76: ...el for 12dB SINAD are obtained measured by connecting SG to each point via a 0 01µF capacitor AF VTVM AF level obtained when the AF output level is adjusted for 0 45V 4Ω with the front panel AF VOL control Measured with AF voltmeter connected to the external speaker jack receiving a 53dBm SSG signal modulated at 1kHz DEV 3kHz Wide 1 5kHz Narrow X58 4723 01 Wattmeter by 50Ω 1 AG is set so that MIC ...

Страница 77: ...ch 0 94kg 2 07 lbs RECEIVER Measurements made par EIA standard EIA TIA 603 RF Input Impedance 50Ω Sensitivity 0 35µV 0 28µV Narrow Wide Adjacent Channel Selectivity 67dB 75dB Narrow Wide Intermodulation Rejection 65dB 70dB Narrow Wide Spurious and Image Rejection 80dB Audio Power Output 4W at 4Ω less than 10 distortion Channel Frequency Spread 40MHz TRANSMITTER Measurements made par EIA standard E...

Страница 78: ...91 TK 885 ...

Страница 79: ...y 75018 Paris France KENWOOD ELECTRONICS U K LIMITED KENWOOD House Dwight Road Watford Herts WD1 8EB United Kingdom KENWOOD ELECTRONICS EUROPE B V Amsterdamseweg 37 1422 AC Uithoorn The Netherlands KENWOOD ELECTRONICS ITALIA S p A Via G Sirtori 7 9 20129 Milano Italy KENWOOD IBERICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue Nor...

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