Kenwood-TK-862-G-Service-Manual电路原理图.pdf

© 2000-1 PRINTED IN JAPANB51-8498-10 (N)1268UHF FM TRANSCEIVERTK-860G/862GSERVICE MANUALREVISEDMicrophone(T91-0597-15)Cabinet (Upper)(A01-2165-13)Panel assy(A62-0642-03)Key top(K29-5343-02)Microphone(T91-0597-15)Cabinet (Upper)(A01-2165-13)Panel assy(A62-0731-03)Key top(K29-5344-02)TK-860G (K)TK-862G (K)Please use this manual in place of the service manual (preliminary version), B51-8498-00.We have added the information on the circuit description, specifications, and K3 version specifications to the servicemanual (preliminary version), B51-8498-00.2TK-860G/862GCONTENTS / GENERALGENERALINTRODUCTIONSCOPE 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 required service in-formation for the equipment and is current as of the publica-tion data. Changes which may occur after publication arecovered by either Service Bulletins or Manual Revisions.These are issued as required.ORDERING REPLACEMENT PARTSWhen ordering replacement parts or equipment informa-tion, the full part identification number should be included.This applies to all parts : components, kits, or chassis. If thepart number is not known, include the chassis or kit numberof which it is a part, and a sufficient description of the re-quired component for proper identification.PERSONNEL SAFETYThe following precautions are recommended for person-nel safety : DO NOT transmit if someone is within two feet (0.6meter) 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 nearelectrical blasting caps or in an explosive atmosphere. All equipment should be properly grounded beforepower-up for safe operation. This equipment should be serviced by a qualified techni-cian only.PRE-INSTALLATION CONSIDERNATIONS1. UNPACKINGUnpack the radio from its shipping container and checkfor accessory items. If any item is missing, please contactKENWOOD immediately.2. LICENSING REQUIREMENTSFederal regulations require a station license for each ra-dio installation (mobile or base) be obtained by the equip-ment owner. The licensee is responsible for ensuring trans-mitter power, frequency, and deviation are within the limitspermitted by the station license.Transmitter adjustments may be performed only by a li-censed technician holding an FCC first, second or generalclass commercial radiotelephone operators license. Thereis no license required to install or operate the radio.CONTENTSGENERAL . 2SYSTEM SET-UP . 4OPERATING FEATURES . 5REALIGNMENT. 10INSTALLATION. 20CIRCUIT DESCRIPTION. 24SEMICONDUCTOR DATA. 29DESCRIPTION OF COMPONENTS . 31PARTS LIST. 33EXPLODED VIEW . 42PACKING . 44ADJUSTMENT . 45PC BOARD VIEWSDISPLAY UNIT (X54-3270-10) : TK-860G . 54DISPLAY UNIT (X54-3280-10) : TK-862G . 55PLL/VCO (X58-4670-XX) . 56TX-RX UNIT (X57-5960-XX) (A/2) . 57TX-RX UNIT (X57-5960-XX) (B/2). 63SCHEMATIC DIAGRAM . 67BLOCK DIAGRAM. 75LEVEL DIAGRAM. 78TERMINAL FUNCTION . 80SPECIFICATIONS. 813TK-860G/862G13+7613155. INSTALLATION PLANNING CONTROL STATIONS5-1. Antenna systemControl station. The antenna system selection dependson many factors and is beyond the scope of this manual.Your KENWOOD dealer can help you select an antenna sys-tem that will best serve your particular needs.5-2. Radio locationSelect a convenient location for your control station radiowhich is as close as practical to the antenna cable entrypoint. Secondly, use your systems power supply (whichsupplies the voltage and current required for your system).Make sure sufficient air can flow around the radio and powersupply to allow adequate cooling.SERVICEThis radio is designed for easy servicing. Refer to theschematic diagrams, printed circuit board views, and align-ment procedures contained in this manual.NoteWhen you modify your radio as described in system set-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 (1A). Insert a 1Afuse if you use the SB pin for external equipment.Accessory connectorcable (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.Speaker-jack cap(B09-0235-05)3. PRE-INSTALLATION CHECKOUT3-1. IntroductionEach radio is adjusted and tested before shipment. How-ever, it is recommended that receiver and transmitter opera-tion be checked for proper operation before installation.3-2. TestingThe radio should be tested complete with all cabling andaccessories as they will be connected in the final installa-tion. Transmitter frequency, deviation, and power outputshould be checked, as should receiver sensitivity, squelchoperation, and audio output. QT equipment operationshould be verified.4. PLANNING THE INSTALLATION4-1. GeneralInspect the vehicle and determine how and where theradio antenna and accessories will be mounted.Plan cable runs for protection against pinching or crush-ing wiring, and radio installation to prevent overheating.4-2. AntennaThe favored location for an antenna is in the center of alarge, flat conductive area, usually at the roof center. Thetrunk lid is preferred, bond the trunk lid and vehicle chassisusing ground straps to ensure the lid is at chassis ground.4-3. RadioThe universal mount bracket allows the radio to bemounted in a variety of ways. Be sure the mounting surfaceis adequate to support the radios weight. Allow sufficientspace around the radio for air cooling. Position the radioclose enough to the vehicle operator to permit easy accessto the controls when driving.4-4. DC Power and wiring1. This radio may be installed in negative ground electricalsystems only. Reverse polarity will cause the cable fuseto blow. Check the vehicle ground polarity before installa-tion to prevent wasted time and effort.2. Connect the positive power lead directly to the vehiclebattery positive terminal. Connecting the Positive lead toany other positive voltage source in the vehicle is not rec-ommended.CAUTIONIf DC power is to be controlled by the vehicle ignitionswitch, a switching relay should be used to switch the posi-tive power lead. The vehicle ignition switch then controlsDC to the relay coil.3. Connect the ground lead directly to the battery negativeterminal.4. The cable provided with the radio is sufficient to handlethe maximum radio current demand. If the cable must beextended, be sure the additional wire is sufficient for thecurrent to be carried and length of the added lead.GENERAL4TK-860G/862GSYSTEM SET-UPMerchandise receivedLicense and frequency allocated by FCCChoose the type of transceiverAre you using the public address?Are you using the external speaker?Are you using ignition sense cable?DeliveryAre you using the KGP-1A Modem GPS receiveror the KGP-1B Modem GPS controller?Transceiver programming (Option)8ch modelsTK-862G128ch modelsTK-860GFrequency range (MHz)450490400430RF power25W25WTypeK,MK3KAP-1PA/HA unitKCT-20Connection cableKES-3External speakerKCT-19Accessory connector cableKCT-18Ignition sense cableFrequency range (MHz)450490RF power25WTypeKSee page 11.A personal computer (IBM PC or compatible), programming interface (KPG-22),and programming software (KPG-56D) are required for programming.(The frequency and signalling (option) data are programmed for the transceiver.)(Option)(Option)(Option)(Option) (Option)See page 22.Installation the TX-RX unit when used KAP-1.YESYESYESYESNONONONOSee page 21.See page 20.See page 23.See the KCT-20 instruction manual (B62-0733-11).*: You can install either KCT-19 or KCT-20 to the TK-860G/862G transceiver*5TK-860G/862G1. Controls and Functions1-1. TK-860G Front PanelIO (Power) switchPress to switch the transceiver ON (or OFF).LED indicatorLights red while transmitting. Lights green while receiv-ing. Flashes orange while receiving a Code Squelch orSelective Call code, or a 2-Tone code that matches theone set up in your transceiver./ keysThese are PF (Programmable Function) keys. Press eachkey to activate its auxiliary function. The default settingsare Volume Up and Volume Down.DisplaySee right./ keysThese are PF (Programmable Function) keys. Press eachkey to activate its auxiliary function. The default settingsare Channel Up and Channel Down.Microphone jackInsert the microphone plug into this connector.MON, A, D/A, , , and SCN keys (TK-860G)MON, , , and A keys (TK-862G)These are PF (Programmable Function) keys. Press eachkey to activate its auxiliary function.PTT (Push-to-Talk) switchPress this switch, then speak into the microphone to calla station.1 2 3 4 57681 2 3 4 5761-2. TK-862G Front Panel1-3. Microphone123456781-4. Displaya73 TK-860GIndicator DescriptionAppears while using SmarTrunk.Appears when the selected channelin busy.Appears when QT, DQT, DTMF, or2-Tone decoding is deactivated (bypressing the Monitor key).Appears when you receive a CodeSquelch, Selective Call, 2-Tone code.Also appears when you transmitusing Code Squelch or Selective Call.Appears while scanning.Appears when the AUX port isactivated.Appears when the selected channelis included in the scanning sequence.Displays the selected channelnumber (or name), DTMF digits(when entering digits, confirmingdigits, or making a call), and mes-sages received via Selective Call.a73 TK-862GIndicator DescriptionAppears when QT, DQT, DTMF, or2-Tone decoding is deactivated (bypressing the Monitor key).Appears when the AUX port isactivated.Displays the selected channelnumber.OPERATING FEATURES6TK-860G/862G1-5. Rear panelAntennaconnectorExternalspeaker jackPower inputconnector1-6. Programmable Auxiliary FunctionsThe following keys can be programmed with the func-tions listed below.TK-860G : / (left side), / (right side), MON, A, D/A, , and SCN.TK-862G : / (left side), / (right side), MON, , , andA. AUX Channel Down Channel Up Display Character (TK-860G only) Emergency *1 Group Down (TK-860G only) Group Up (TK-860G only) Home Channel Horn Alert Key Lock Monitor A (Monitor Unmute-Momentary) Monitor B (Monitor Unmute-Toggle) Monitor C (Carrier Squelch-Momentary) Monitor D (Carrier Squelch-Toggle) None (No function) Operator Selectable Tone *2(TK-860G only) Public Address Redial Scan (TK-860G only) Scan Del/Add (TK-860G only) Selectable QT *3(TK-860G only) Talk-Around Volume Up Volume Down 2-Tone Encode Select *4*1 : This function can be used only with a foot switch.*2 : This function is available for K market models only.*3 : This function is available for M market models only.*4 : The code for the TK-862G transceiver is not selectable.You can transmit only one 2-Tone code, which is pre-programmed in the transceiver.2. Operation FeaturesThe TK-860G/862G is a UHF FM radio designed to oper-ate in conventional format. The programmable features aresummarized.3. Transceiver Controls and Indicators3-1. Front Panel ControlsAll the keys on the front panel are momentary-type pushbuttons. The functions of these keys are explained below. POWER keyTransceiver POWER key. When the power is switchedoff, all the parameters are stored in memory. When thepower is switched on again, the transceiver returns to theprevious conditions. CHANNEL UP/DOWN key (Programmable) / key (Programmable) : TK-860G only SCAN key (Programmable) : TK-860G only MONITOR key (Programmable) A, D/A key (Programmable) : TK-860G only , , A key (Programmable) : TK-862G only VOLUME UP/DOWN key (Programmable) BUSY/TX LEDThe BUSY indicator (Green LED) shows that the channelis in use. The TX indicator (Red LED) shows that you aretransmitting.3-2. Programmable KeysThe FPU (KPG-56D) enables programmable keys to se-lect the following functions.AUX, Channel down, Channel up, Display character *1,Emergency (Only foot key ; M type only), Group down *1,Group up *1, Home channel, Horn alert, Key lock, Monitor A,Monitor B, Monitor C, Monitor D, Operator selectable tone(K type only), Public address, Redial, Scan *1, Scan del/add*1, Talk around, Volume down, Volume up and None.These functions the FPU programs to the functionkeysand described in the following sections.*1 : TK-860G only. AUXIf this key is pressed, “AUX“ icon lights on the display andAUX port which is inside of the transceiver turns to the highlevel. If pressed again, the “AUX“ icon goes off and the AUXports turns to the lower level. Channel up/downWhen the key is pressed each time, the channel numberto be selected is incremented/decremented and repeats ifheld for one second or longer.OPERATING FEATURES7TK-860G/862G Display character (TK-860G only)This key switches the LCD display between the groupand channel number and the group and channel name. Emergency (M market models only)Pressing this key for longer than 1 second causes thetransceiver to enter the 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. Following the above sequence, the transceiver contin-ues to transmit and receive. Group up/down (TK-860G only)When the key is pressed each time, the group number tobe selected is incremented/decremented and repeats if heldfor one second or longer. Home channelPress this key once, the channel switches to the pre-pro-grammed home channel. Horn alertIf you are called from the base station using 2-tone/DTMFwhile you are away from your transceiver, you will bealerted by the vehicle horn or some other type of externalalert. To turn the horn alert function on , press this key. Aconfirmation tone sounds, (and the display shows “HA“ onthe LCD *1).If this key is pressed again, the horn alert function isturned off.*1 : TK-860G only. Key lockPressing this key causes the transceiver to accept entryof only the Vol Up/Down, Key lock, PTT, Monitor A,Monitor B, Monitor C, Monito