Kenwood-TK-760-HG-Service-Manual电路原理图.pdf

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1、 2000-6 PRINTED IN JAPANB51-8538-00 (N)1738VHF FM TRANSCEIVERTK-760HG/762HGSERVICE MANUALSUPPLEMENTMicrophone(T91-0597-25)Cabinet (Upper)(A01-2165-13)Panel assy(A62-0642-03)Key top(K29-5343-02)Microphone(T91-0597-25)Cabinet (Upper)(A01-2165-13)Panel assy(A62-0731-03)Key top(K29-5344-02)TK-760HG (K)T

2、K-762HG (K)This service manual mainly covers TK-760HG K, M and TK-762HG K.If information you require is missing from this service manual.Please refer to the B51-8497-10 service manual.2TK-760HG/762HGCONTENTSOPERATING FEATURES . 3REALIGNMENT. 4INSTALLATION. 5PARTS LIST. 8EXPLODED VIEW . 16PACKING . 1

3、8ADJUSTMENT . 19PC BOARD VIEWSDISPLAY UNIT (X54-3270-10) : TK-760HG. 28DISPLAY UNIT (X54-3280-10) : TK-762HG. 29PLL/VCO (X58-4670-10) . 30TX-RX UNIT (X57-5950-XX) (A/2) . 31TX-RX UNIT (X57-5950-XX) (B/2). 37SCHEMATIC DIAGRAM . 41BLOCK DIAGRAM . 49LEVEL DIAGRAM. 52TERMINAL FUNCTION . 54SPECIFICATIONS

4、. 553TK-760HG/762HGOPERATING FEATURESFoot switch 1 push (Hold it down for about one second.)Emergency modeEmergency channel LCD dot status changeTX 25 sec. RX 5 sec.Emergency ACK code receiveFoot switch 1 pushHorn/Light operation stopHorn/Light operationD/A key 1 pushEmergency reset code receive MON

5、 key + Foot SW 1 pushEmergency mode resetNormal operationAfter 1 min.*2*2*1LCD dot status change*1DotDotorora73 Emergency mode system chart (TK-762HG)*1 : When the dot indicator is on, it turns off.When the dot indicator is off, it turns on.*2 : Hold the foot switch again for about one second.Radio

6、Password (TK-760HG only)When the password is set in the transceiver, user can notuse the transceiver unless enter the correct password.This code can be up to 6 digits from 0 to 9 and input withthe key, and “SCN” key.EmergencyPressing this key for longer than 1 second causes thetransceiver to enter t

7、he emergency mode. The transceiverjumps to the programmed “Emergency the group and chan-nel” and transmits for 25 seconds.The transceiver disables mic mute while transmitting.After finishing transmission, the transceiver receivers for 5seconds. The transceiver mutes the speaker while receiv-ing. Fol

8、lowing the above sequence, the transceiver contin-ues to transmit and receive.a73 Emergency mode system chart (TK-760HG)Foot switch 1 push (Hold it down for about one second.)Emergency modeEmergency channel LCD dots lightTX 25 sec. RX 5 sec.Emergency ACK code receiveFoot switch 1 pushHorn/Light oper

9、ation stopHorn/Light operationD/A key 1 pushEmergency reset code receive MON key + Foot SW 1 pushEmergency mode resetNormal operationAfter 1 min.*2*2*1DotsDotsLCD dots light*3oror*1 : 3 left most dots light.*2 : Hold the foot switch again for about one second.*3 : 2 right most dots light.4TK-760HG/7

10、62HGREALIGNMENTClone ModeProgramming data can be transferred from one radio toanother by connecting them via their modular microphonejacks. The operation is as follows (the transmit radio is themaster and the receive radio is the slave).1. Turn the master TK-760HG power ON with the keyheld down. If

11、the password is set to the TK-760HG, theTK-760HG displays “CLN LOCK”. If the password is notset, the TK-760HG displays “CLONE”.2. When “CLN LOCK” is displayed, only the CH / keyand SCN, and 0 to 9 keys can be accepted. Whenyou enter the correct password, and “CLONE” is dis-played, the TK-760HG can b

12、e used as the cloning master.The following describes how to enter the password.3. How to enter the password with the microphone keypad;If you press a key while “CLN LOCK” is displayed, thenumber that was pressed is displayed on the TK-760HG.Each press of the key shifts the display in order to thelef

13、t. When you enter the password and press the SCNkey, “CLONE” is displayed if the entered password iscorrect. If the password is incorrect, “CLN LOCK” isredisplayed.How to enter the password with the CH / key;If the CH / key is pressed while “CLN LOCK” isdisplayed, numbers (0 to 9) are displayed flas

14、hing. Whenyou press the SCN key, the currectly selected number isdetermined, and the display shifts to the left. If you pressthe SCN key after entering the password in this proce-dure, “CLONE” is displayed if the entered password iscorrect. If the password is incorrect, “CLN LOCK” isredisplayed.4. P

15、ower on the slave TK-760HG/762HG.5. Connect the cloning cable (No. E30-3382-05) to themodular microphone jacks on the master and slave.6. Press the SCN key on the master while the master dis-plays “CLONE”. The data of the master is sent to theslave. While the slave is receiving the data, “PC” isdisp

16、layed. When cloning of data is completed, the mas-ter displays “END”, and the slave automatically operatesin the User mode. The slave can then be operated by thesame program as the master.7. The other slave can be continuously cloned. When theSCN key on the master is pressed while the master dis-pla

17、ys “END”, the master displays “CLONE”. Carry outthe operation in step 4 to 6.Note :You can clone the programmed data between the trans-ceiver frequency version must be same.Cloning cable(E30-3382-05)Fig. 1MBLPSBGNDPTT/TXDMEMICHOOK/RXDCMGNDREMOTE/TXDPTT/RXD8118Clone cableE30-3411-05 (TK-760HG TK-260G

18、/270G)5TK-760HG/762HGINSTALLATIONFig. 3PA/HA Unit (KAP-1 : Option)a73 Installing the KAP-1 in the TransceiverThe Horn Alert (max. 2A drive) and Public Address func-tions are enabled by inserting the KAP-1 W1 (3P; white/black/red) into CN3 on the TX-RX unit, inserting W2 (3P;green) into CN7 on the TX

19、-RX unit, and connecting the KCT-19 (option) to CN2 and CN3 of the KAP-1. Installation procedure1. Open the upper case of the transceiver.2. Insert the two cables ( ) with connectors from theKAP-1 switch unit into the connectors on the transceiver.3. Secure the switch unit board to the chassis with

20、a screw( ). The notch ( ) in the board must be placed at thefront left side.4. Attach the cushion on the top of the KAP-1 switch unit.13 2Ignition Sense Cable (KCT-18 : Option)The KCT-18 is an optional cable for enabling the ignitionfunction. The ignition function lets you turn the power to thetrans

21、ceiver on and off with the car ignition key.If you use the Horn Alert function or the Manual Relayfunction, you can turn the function off while driving with theignition key.a73 Connecting the KCT-18 to the Transceiver1. Install the KCT-19 in the transceiver.2. Insert the KCT-18 lead terminal ( ) int

22、o pin 3 of thesquare plug ( ) supplied with the KCT-19, then insertthe square plug into the KCT-19 connector ( ).213Fig. 1a73 Modifying the TransceiverModify the transceiver as follows to turn the power orthe Horn Alert or Manual Relay function on and off with theignition key.1. Remove the lower hal

23、f of the transceiver case.2. Set jumper resistors (0) R134 and R135 of the TX-RXunit (A/2) as shown in Table 1.Fig. 2Operation when KCT-18 R134 R135is connectedEnable Enable KCT-18 cannotPower on/off and Horn Disable Enable be connectedAlert or AUX-A on/offHorn Alert or AUX-A Enable Disableon/offDis

24、able Disable Power cannotbe turned onTable 1 R134 and R135 setup chart1361315KCT-18KCT-19Contact123TX-RX UNIT(A/2)ANTKCT-19CN2R134R133R13523413W1W2CN1CN2KCT-19Cushion(G13-1710-04)CN3CN71CN36TK-760HG/762HGINSTALLATIONa73 OthersIf the PA and HR2 are not necessary and the speaker out-put is output to a

25、n external unit through the KCT-19, connectthe KCT-19 C connector to CN8 on the TX-RX unit.8CR21Q5Q1D2Q6Q1Q64IC9ShiftregisterIGN + +KAP-1 (SWITCH UNIT : X41-3380-20)W1123HORESBW2123PA/LISPOSPICN112HR2NCCN2123HR1ESBCN312PAO/LIOER1 0C5 1000PC61000PC71000PK2D1C3 0.01C11000PR3 0R4 0C21000PD2K1C4 0.01Q1Q

26、1 : DTD114EKD1,2 : 1SS193CN3CN713+R153Audiopower ampIC13CN81 2SPEInternal/ExternalspeakerTX-RX UNITBBRNORGYELCCGRNGRNKCT-1913 10 1361215KCT-19 Terminal6 : Earth10 : HR112 : PA (HR2)Fig. 6a73 Modifying the Transceiver Horn alertThe signal from pin 4 of IC9 on the TX-RX unit turns Q5and Q1 on and off

27、and drives KAP-1 HA relay K2 to drive thehorn with a maximum of 2A.The default output is HR1. The relay open output can beobtained between HR1 and HR2 by removing R1 in the KAP-1.R1 Output formHR1 (Default) EnableHR2 DisableHR1HR1HR2R1Fig. 4 KAP-1 foil side view Public addressThe signal from pin 13

28、of IC9 on the TX-RX unit drives PArelay K1 in the KAP-1 and switches the audio power ampli-fier output between the external PA system (through KCT-19) and internal and external speakers.To use the PA function, R153 on the TX-RX unit must beremoved.R153Use the PA function DisableDo not use the PA fun

29、ction EnableFig. 5TX-RX UNIT(A/2)KCT-19CN2Q19R122R153ANT7TK-760HG/762HGINSTALLATIONF.RESETR705TX-RX unit B/2Foil sideR142TX-RX unit A/2Foil sideFig. 8Emergency Modea73 Transceiver Modification Procedure Install the foot switchInstall the foot switch through the KCT-19 and KCT-18.When the switch is t

30、readed on, the radio enters the emer-gency mode. Change the power switch circuitTX-RX unit (B/2) : Control section$R705 : Attach (R92-1252-05, 0)TX-RX unit (A/2) : RF sectionR142 : Remove (RK73GB1J473J, 47k)Once the transceiver is modified, it cannot be turned onand off with the power switch. The po

31、wer switch turns theLCD backlight and display on and off. (The power isswitched on and off by IGNITION SENSE.)IC502CPU6Q506878825 20$R705Attach0PowerswitchMBLMBLSBQ505KeybacklightLCDIC5101 3CN5R14247KRemoveIC14KCT-1915 pinKCT-18FootswitchControl sectionTX-RX sectionOutside13 13615KCT-19 Terminal3 :

32、Ignition sense6 : Earth15 : Foot switchFig. 7TK-760HG/762HGPARTS LIST8TK-760HG : K,MTK-762HG : K*New Parts. indicates safety critical components.Parts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.L :

33、Scandinavia K: USA P : CanadaY: PX (Far East, Hawaii) T : England E : EuropeY: AAFES (Europe) X: Australia M: Other AreasTK-760HG/762HGDISPLAY UNIT (X54-3270-10) : TK-760HG, DISPLAY UNIT (X54-3280-10) : TK-762HGNew Desti-parts nationRef. No. Address Parts No. DescriptionNew Desti-parts nationRef. No

34、. Address Parts No. Description1 1B,1E A01-2165-13 CABINET UPPER2 2A,2D A01-2166-13 CABINET LOWER3 2A A62-0642-03 PANEL ASSY 7603 2D A62-0731-03 PANEL ASSY 7625 1G B09-0235-05 CAP6 2B B11-1226-03 ILLUMINATION GUIDE 7606 2E B11-1230-03 ILLUMINATION GUIDE 7627 2A B38-0824-05 LCD 7607 2E B38-0825-05 LC

35、D 7628 2G B62-1257-20 INSTRUCTION MANUAL M82*B62-1258-20 INSTRUCTION MANUAL K9 1C B72-1816-04 MODEL NAME PLATE 760K9 1C B72-1817-04 MODEL NAME PLATE 760M9 1F B72-1818-04 MODEL NAME PLATE 76211 2B E29-1179-04 INTER CONNECTOR 76011 2E E29-1183-04 INTER CONNECTOR 76212 1C E30-2145-15 ANTENNA CABLE13 1G

36、 E30-3339-05 DC CORD ACC14 1C,1F E30-3340-05 DC CORD RADIO- - E30-3404-05 EXTENSION CABLE16 1C,1F E37-0790-25 LEAD WIRE WITH CONNECTOR (SP)17 2B,2E E37-0815-05 FLAT CABLE19 1G F51-0017-05 FUSE (6*30)21 1C,1F G02-0791-04 FLAT SPRING AF, APC22 1B,1E G10-1221-04 FIBROUS SHEET SIDE23 1B,1E G10-1222-14 F

37、IBROUS SHEET UP, DOWN24 1A,1D G10-1223-14 FIBROUS SHEET SHIELD25 1C,1F G13-1468-04 CUSHION DC CORD26 1B,1E G13-1759-04 CUSHION SP27 2C,2F G53-0796-04 PACKING PHONE JACK28 2E G53-0889-04 PACKING DISPLAY UNIT 76230 3G H10-6628-02 POLYSTYRENE FOAMED FIXTURE (F)31 2H H10-6629-02 POLYSTYRENE FOAMED FIXTU

38、RE (R)32 1G H12-1391-03 INNER PACKING CASE33 1H,2H H25-0720-04 PROTECTION BAG (200X350)34 3H H52-1653-02 ITEM CARTON CASE36 2G J19-1584-05 HOLDER ACC37 2A,2D J21-8382-03 HARDWARE FIXTURE38 1G J29-0627-23 BRACKET40 2A K29-5343-02 KEY TOP 76040 2D K29-5344-02 KEY TOP 762A 2A,2D N33-2606-45 OVAL HEAD M

39、ACHINE SCREWB 2C,2F N67-3008-46 PAN HEAD SEMS SCREW WC 2B,2E N87-2606-46 BRAZIER HEAD TAPTITE SCREWD 2B,2E N87-2612-46 BRAZIER HEAD TAPTITE SCREW42 2G N99-0395-05 SCREW SET44 1B,1E T07-0368-05 SPEAKER45 1G T91-0597-25 MICROPHONE KTK-760HG/762HGD802-805 B30-2220-05 LED (2P/YELLOW)C801-803 CC73GCH1H10

40、1J CHIP C 100PF JC804 CK73GF1A105Z CHIP C 1.0UF ZC805 CK73GB1H102K CHIP C 1000PF KC806,807 CK73GB1H471K CHIP C 470PF KCN801 E40-6020-05 PIN ASSYL801 L92-0138-05 FERRITE CHIPR801-803 RK73GB1J103J CHIP R 10K J 1/16WR804 RK73GB1J473J CHIP R 47K J 1/16WR805 RK73GB1J474J CHIP R 470K J 1/16WR806 R92-1252-

41、05 CHIP R 0 OHMR808 RK73GB1J392J CHIP R 3.9K J 1/16WR809 RK73FB2A270J CHIP R 27 J 1/10WD801 MA2S111 DIODED808 HSB123 DIODEIC801 LC75823W IC (LCD DRIVER)Q801 2SB1132(Q,R) TRANSISTORD801 B30-2204-05 LED (RED/YELLOW)D803 B30-2220-05 LED (2P/YELLOW)D804 B30-2204-05 LED (RED/YELLOW)C801 CK73GB1H471K CHIP

42、 C 470PF KC802-804 CC73GCH1H101J CHIP C 100PF JC805 CK73GF1A105Z CHIP C 1.0UF ZC806 CK73GB1H471K CHIP C 470PF KC807 CK73GB1H102K CHIP C 1000PF KC808 CK73GB1H471K CHIP C 470PF KC812 CK73GB1H471K CHIP C 470PF KCN801 E40-6020-05 PIN ASSYL801 L92-0138-05 FERRITE CHIPR801,802 RK73GB1J103J CHIP R 10K J 1/

43、16WR803 RK73FB2A123J CHIP R 12K J 1/10WR804 RK73GB1J103J CHIP R 10K J 1/16WR805 RK73FB2A332J CHIP R 3.3K J 1/10WR806 RK73GB1J474J CHIP R 470K J 1/16WR807 R92-1252-05 CHIP R 0 OHMR808 RK73GB1J393J CHIP R 39K J 1/16WR809 RK73FB2A123J CHIP R 12K J 1/10WR810 RK73FB2A332J CHIP R 3.3K J 1/10WR812 RK73FB2A

44、561J CHIP R 560 J 1/10WR813-816 RK73GB1J473J CHIP R 47K J 1/16WD802 MA2S111 DIODEIC801 LC75833W IC (LCD DRIVER)Q801-803 DTA114EKA DIGITAL TRANSISTORQ804 KRA225S DIGITAL TRANSISTORQ805 DTA114EKA DIGITAL TRANSISTORQ806-809 2SK1824 FETDISPLAY UNIT (X54-3270-10) : TK-760HGDISPLAY UNIT (X54-3280-10) : TK-762HGTK-760HG/762HGPARTS LIST9TK-760HG : K,