Kenwood-TKR-850-Service-Manual电路原理图.pdf

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1、Knob (VOL)(K29-5389-03)Knob (DC source)(K29-9106-04)Key top(K29-5460-02)Panel assy(A62-0934-03)Panel (Outer)(A62-0840-03)Modular jack(E08-0877-05) 2001-5 PRINTED IN JAPANB51-8557-10 (N)1233UHF FM REPEATERTKR-850SERVICE MANUALGENERAL . 2SYSTEM SET-UP . 2OPERATING FEATURES . 3REALIGNMENT . 11INSTALLAT

2、ION . 13MODIFICATION. 15DISASSEMBLY FOR REPAIR . 17CIRCUIT DESCRIPTION . 18SEMICONDUCTOR DATA . 24DESCRIPTION OF COMPONENTS . 26PARTS LIST . 28EXPLODED VIEW. 39PACKING . 41ADJUSTMENT . 42TERMINAL FUNCTION . 49WIRING. 53PC BOARD VIEWSRX PLL/VCO (X58-4800-XX) . 55TX PLL/VCO (X58-4810-XX). 56DISPLAY UN

3、IT (X54-3330-20) . 57FINAL UNIT (X45-3630-XX) . 61TX-RX UNIT (X57-6270-XX) (A/2). 67TX-RX UNIT (X57-6270-XX) (B/2) . 73SCHEMATIC DIAGRAM. 79BLOCK DIAGRAM. 91KES-4 (EXTERNAL SPEAKER) . 94SPECIFICATIONS . 95CONTENTSREVISEDThis Service Manual was revised based on the servicemanual as per parts No. B51-

4、8557-00, in order to includenew variants with the following destination codes : K3.2TKR-850GENERAL / SYSTEM SET-UPINTRODUCTIONSCOPE OF THIS MANUALThis manual is intended for use by experienced techni-cians familiar with similar types of commercial grade com-munications equipment. It contains all req

5、uired service in-formation for the equipment and is current as of this publica-tion date. Changes which may occur after publication arecovered by either Service Bulletins or Manual Revisions,which are issued as required.ORDERING REPLACEMENT PARTSWhen ordering replacement parts or equipment informa-t

6、ion, the full part identification number should be included.This applies to all parts : components, kits, and chassis. Ifthe part number is not known, include the chassis or kitnumber of which it is a part and a sufficient description ofthe required component, for proper identification.PERSONNEL SAF

7、ETYThe following precautions are recommended for person-nel safety : DO NOT transmit until all RF connectors are secure andany open connectors are properly terminated. SHUT OFF this equipment when near electrical blastingcaps or while in an explosive atmosphere. This equipment should be serviced by

8、only qualified tech-nicians.SERVICEThis radio is designed for easy servicing. Refer to theschematic diagrams, printed circuit board views, and align-ment procedures contained in this manual.MerchandisereceivedChoose the typeof transceiverInstallation in theoptional spaceFrequency range (MHz)TX/RX 45

9、0480TX/RX 480512TX/RX 400430TX/RX 440470RF power40W40W40W40WTypeKK2K3ESee page 11.A personal computer (IBM PC or compatible), programming interface (KPG-46),and programming software (KPG-66D) are required for programming.YESNODC powersupply or duplexer?KES-4 installationYESNOExternal speaker?Repeate

10、rprogramming & setupDeliverySYSTEM SET-UP3TKR-850OPERATING FEATURES1. Controls and Functions1-1. Front Panel1 Speaker2 CH/STATUS DisplayTwo, 7-segment digits display the channel number or sta-tus.3 VOLUME controlRotate to adjust the volume.4 DC source ON/OFF switch5 DC source indicatorLights green w

11、hen DC source is applied from the DC13.6V jack (DC 13.2V jack on E type versions). Lights redwhen DC source is applied from the BACKUP battery ter-minal.6 MIC jackConnect a microphone to this 8-pin modular jack.19 8 7 63 4 521 TX OUT jackConnect a TX antenna or a duplexer to this receptacle.2 CONTRO

12、L I/O jackConnect an external programming device or repeatercontroller to this DB-25 interface.3 FUSEInsert 15 A blade fuses into these fuse holders.4 RX IN jackConnect a RX antenna or a duplexer to this BNC recep-tacle.7 Programmable Function keysPress these keys to activate their programmable func

13、-tions.PF1 key (left side) Default : None (No function)PF2 key Default : Repeat disable/enablePF3 key Default : TX disable/enablePF4 key Default : Take overPF5 key Default : Monitor on/offPF6 key (right side) Default : Channel up8 BUSY indicatorLights green while a signal is being received.9 TX indi

14、catorLights red while transmitting.17 6 52 8 3 4 91-2. Rear Panel5 DC 13.6V (K type) / DC 13.2V (E type) jackConnect a 13.6 V (K type) or 13.2 V (E type) DC powersupply to this jack.6 BACKUP battery terminal7 TEST/SPKR jackTest input/output jack. Connect an external speaker tothis jack.8 Cooling fan

15、9 Optional spaceFor external DC power supply, or duplexer, etc.4TKR-850OPERATING FEATURES2. Two 7-segment LED Displays Channel display (116) : While operating normally in usermode. When the displayed channel is contained in scan se-quence, the right side decimal point is displayed. When the displaye

16、d channel is the priority channel, theleft side decimal point is displayed. “PC” is displayed while in PC mode. “PG” is displayed while in firmware programming mode.2 decimal points displayed = 115,200bps1 decimal point displayed = 57,600bpsNo decimal = 38,400bps “E1” is displayed when FPU data is n

17、ot written. “E2” is displayed when the channel data is not written. “E3” is displayed when PLL is unlocked.Receiver PLL unlocked = flashing BUSY LED.Transmitter PLL unlocked = flashing TX LED. “E4” is displayed when PTT is attempted on a channelnumber that has no frequency data programmed. “SC” is d

18、isplayed while in scan mode.5TKR-850OPERATING FEATURES3. Programmable FunctionsTKR-850 contains many Programmable Functions tabled below.Programmable Function DescriptionAUX Out 15 Off AUX Out 1 to 5 ports become deactivated, respectively.AUX I/O 16 Off AUX I/O 1 to 6 ports become deactivated, respe

19、ctively.AUX Out 15 On AUX Out 1 to 5 ports become activated, respectively.AUX I/O 16 On AUX I/O 1 to 6 ports become activated, respectively.AUX Out 15 On/Off AUX Out 1 to 5 ports are toggled between its active and inactive states, respectively.AUX I/O 16 On/Off AUX I/O 1 to 6 ports are toggled betwe

20、en its active and inactive states, respectively.Channel 116 Directly select Channel 1 to 16, respectively.Channel Down The channel decrements by one.Channel Up The channel increments by one.CW ID On The CW ID is transmitted.CW Message 18 On The CW Message 1 to 8 is transmitted, respectively.Display

21、Off All panel LEDs are turned off except the Power LED.Display On All panel LEDs become active as normal status indicators on the repeater.Display On/Off All panel LEDs, with the exception of the Power LED, are toggled between off and their normal status onthe repeater.Hold Time Enable The Parameter

22、 of Repeat Hold Time is enabled.Hold Time Disable The Parameter of Repeat Hold Time is disabled.Hold Time Disable/Enable The Parameter of Repeat Hold Time is toggled between disabled and enabled.Local Tx Disable The local mics PTT is disabled.Local Tx Enable The local mics PTT is enabled.Local Tx Di

23、sable/Enable The local mics PTT is toggled between disabled and enabled.Monitor Off The QT/DQT decoder is disabled.Monitor On The QT/DQT decoder is enabled.Monitor On/Off The QT/DQT decoder is toggled between disabled and enabled.Monitor Momentary The QT/DQT decoder is momentarily disabled.Multi Tab

24、le Sub Multi Table No. Select Signalling changes to the Multi Table Sub.Multi Table Main Multi Table No. Select Signalling changes to the Multi Table Main.Multi Table Main/Sub Multi Table No. Select Signalling changes between Multi Table Sub and Multi Table Main.QT/DQT Dec Disable Disables the QT/DQ

25、T decode operation.QT/DQT Dec Enable Enables the QT/DQT decode operation.QT/DQT Dec Disable/Enable Toggles between disabling and enabling the QT/DQT decode operation.QT/DQT Enc Disable Disables the QT/DQT encode operation.QT/DQT Enc Enable Enables the QT/DQT encode operation.QT/DQT Enc Disable/Enabl

26、e Toggles between disabling and enabling the QT/DQT encode operation.Repeat Disable Disables repeater operation.Repeat Enable Enables repeater operation.Repeat Disable/Enable Toggles between disabling and enabling repeater operation.Reset Resets to default condition set up by FPU.DC Power Save Off A

27、ctivates DC Power Save Mode Off.DC Power Save On Activates DC Power Save Mode On.DC Power Save On/Off Toggles between DC Power Save Mode On and Off.6TKR-850Programmable Function DescriptionScan Off Inhibits scanning.Scan On Starts scanning.Scan On/Off Scanning is toggled between being enabled or inh

28、ibited.Scrambler Off Disables an installed optional voice scrambler board.Scrambler On Enables an installed optional voice scrambler board.Scrambler On/Off Toggles between enabling and disabling an installed optional voice scrambler board.Squelch Off The Squelch unmutes.Squelch On The Squelch mutes.

29、Squelch On/Off The receivers squelch toggles between muted and unmuted.Squelch Momentary The Squelch momentarily unmutes.Take Over On/Off Toggles between disabling and enabling remote wireline control.Test Tone Off The Test Tone is inhibited.Test Tone On The Test Tone is enabled.Test Tone On/Off Tog

30、gles between enabling and inhibiting the Test Tone.TOT Disable The Time Out Timer is disabled.TOT Enable The Time Out Timer is enabled.TOT Disable/Enable The Time Out Timer is toggled between disabled and enabled.TX Disable The transmitter is inhibited.TX Enable The transmitter is enabled (normal).T

31、X Disable/Enable Toggles between transmitter inhibited and transmitter enabled (normal).The following Programmable Functions are output functions used to tell the condition of the TKR-850 to an external device.The output functions can be assigned to only AUX Outputs as follows.Programmable Function

32、DescriptionCOR (Carrier Operate Relay) This function becomes valid if an RF carrier is present.TOR (Tone Operate Relay) This function becomes valid if an RF carrier and the specified QT/DQT are present.RX Unlock This alarm function becomes valid if the RX PLL circuitry becomes unlocked.TX Unlock Thi

33、s alarm function becomes valid if the TX PLL circuitry become unlocked.Power Supply Lower Limit This alarm function becomes valid if the DC power supply voltage becomes less than the preset point.The preset point is selected in the range of 10.6V to 13.6V.TXS (TX Sense) This function becomes valid w

34、hen the transmitter is keyed.Selectable AUX Outputs which are set up as Selectable appear in the available Function List for the AUX InputFunctions and Key Assignment.This allows AUX Inputs and PF Keys to be used to control AUX Outputs.RX Signal Detect This function becomes valid if the RX signal le

35、vel becomes less than the preset point. The preset point isselected in the range of 120dBm to 95dBm.RF Power Down Detect This alarm function becomes valid if the RF Power becomes less than about 10W.Fan Status This alarm function becomes valid when the Fan is turned on, either by sensing a high temp

36、eraturecondition or by its operating mode being set to Continuous.OPERATING FEATURES7TKR-850OPERATING FEATURES4. Trigger AssignmentThe Programmable Functions described above can be assigned to PF keys, AUX input, Save on/off, Start up, and Power supplyaccording to following table.In the last column

37、of the table, when the Programmable Functions is assigned to any PF keys, it expresses that the LED in thePF key turns on either conditions. “Yes” expresses that the trigger is available the Programmable Function. “No” expressesthat the trigger is not availabale the Programmable Function.Trigger PF

38、keys AUX Save Start up Power Condition of LED in he PF key onFunction input on/off supplyAUX Out 15 (I/O 16) Off No Yes Yes Yes Yes AUX Out 15 (I/O 16) On No Yes Yes Yes Yes AUX Out 15 (I/O 16) On/Off Yes Yes No No No Turns on in ON status.Channel 116, Up/Down Yes Yes Yes Yes Yes Do not turn on.CW I

39、D On Yes Yes Yes Yes Yes Turns on while transmitting.CW Message 18 On Yes Yes Yes Yes Yes Turns on while transmitting.Display Off No Yes Yes Yes Yes Display On No Yes Yes Yes Yes Display On/Off Yes Yes No No No Turns on in ON status.Hold Time Enable No Yes Yes Yes Yes Hold Time Disable No Yes Yes Ye

40、s Yes Hold Time Disable/Enable Yes Yes No No No Turns on in Disable status.Local Tx Disable No Yes Yes Yes Yes Local Tx Enable No Yes Yes Yes Yes Local Tx Disable/Enable Yes Yes No No No Turns on in Disable status.Monitor Off No Yes Yes Yes Yes Monitor On No Yes Yes Yes Yes Monitor On/Off Yes Yes No

41、 No No Turns on in ON status.Monitor Momentary Yes No No No No Turns on in ON status.Multi Table Sub No Yes Yes Yes Yes Multi Table Main No Yes Yes Yes Yes Multi Table Main/Sub Yes Yes No No No Turns on in Sub status.QT/DQT Dec Disable No Yes Yes Yes Yes QT/DQT Dec Enable No Yes Yes Yes Yes QT/DQT D

42、ec Disable/Enable Yes Yes No No No Turns on in Disable status.QT/DQT Enc Disable No Yes Yes Yes Yes QT/DQT Enc Enable No Yes Yes Yes Yes QT/DQT Enc Disable/Enable Yes Yes No No No Turns on in Disable status.Repeat Disable No Yes Yes Yes Yes Repeat Enable No Yes Yes Yes Yes Repeat Disable/Enable Yes

43、Yes No No No Turns on in Disable status.Reset Yes Yes No No No Do not turn on.DC Power Save Off No Yes No Yes Yes DC Power Save On No Yes No Yes Yes DC Power Save On/Off Yes Yes No No No Do not turn on.Scan Off No Yes Yes Yes Yes 8TKR-850Trigger PF keys AUX Save Start up Power Condition of LED in he

44、 PF key onFunction input on/off supplyScan On No Yes Yes Yes Yes Scan On/Off Yes Yes No No No Turns on in ON status.Scrambler Off No Yes Yes Yes Yes Scrambler On No Yes Yes Yes Yes Scrambler On/Off Yes Yes No No No Turns on in ON status.Squelch Off No Yes Yes Yes Yes Squelch On No Yes Yes Yes Yes Sq

45、uelch On/Off Yes Yes No No No Turns on in OFF status.Squelch Momentary Yes No No No No Turns on in OFF status.Take Over On/Off Yes No No No No Turns on in ON status.Test Tone Off No Yes Yes Yes Yes Test Tone On No Yes Yes Yes Yes Test Tone On/Off Yes Yes No No No Turns on in ON status.TOT Disable No

46、 Yes Yes Yes Yes TOT Enable No Yes Yes Yes Yes TOT Disable/Enable Yes Yes No No No Turns on in Disable status.TX Disable No Yes Yes Yes Yes TX Enable No Yes Yes Yes Yes TX Disable/Enable Yes Yes No No No Turns on in Disable status.None Yes Yes Yes Yes Yes Do not turn on.OPERATING FEATURES5. Simplex/

47、Duplex OperationThe Simplex/Duplex function is used to specify whetherthe channel is used as simplex (receiver muted during trans-mit) or duplex (receiver unmuted during transmit). If thechannel has same TX/RX frequency, it can operate only inSimplex mode.6. Repeater/Base Station OperationThe Repeat function is used to specify whether the chan-nel is used as a repeater or as a base st