Kenwood_TK-3160_serv.pdf

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1、UHF FM TRANSCEIVER TK-3160 2003-8 PRINTED IN JAPAN B51-8653-00 (S) 1314 SERVICE MANUAL GENERAL .2 SYSTEM SET-UP .2 OPERATING FEATURES .3 REALIGNMENT.4 DISASSEMBLY FOR REPAIR .5 CIRCUIT DESCRIPTION .7 INSTALLATION .11 TERMINAL FUNCTION .12 SEMICONDUCTOR DATA .13 COMPONENTS DESCRIPTION .14 PARTS LIST.

2、15 EXPLODED VIEW.23 PACKING .24 ADJUSTMENT .25 PC BOARD TX-RX UNIT (X57-672X-XX) .30 SCHEMATIC DIAGRAM .34 BLOCK DIAGRAM .38 LEVEL DIAGRAM .40 KSC-30.41 SPECIFICATIONS.BACK COVER CONTENTS Knob (CH-SELECTOR) (K29-9280-13) Knob (VOLUME) (K29-9278-13) Cabinet assy (A02-3826-33) Knob (PTT) (K29-9279-03)

3、 Antenna (KRA-27: Option) Does not come with antenna. Antenna is available as an option. TK-3160 2 Merchandise received License and frequency allocated by FCC Choose the type of transceiver Transceiver programming A personal computer (IBM PC or compatible), programming interface (KPG-22), and progra

4、mming software (KPG-82D) are required for programming. (The frequency, TX power HI/LOW, and signalling data are programmed for the transceiver.) TX/RX 4504904.0WTK-3160 (K,M) Frequency range (MHz)RF powerType Delivery Are you using the speaker microphone? YES NO KMC-17 or KMC-21 Speaker microphone (

5、Option) Are you using the optional antenna? YES NO KRA-23 or KRA-27 Optional antenna GENERAL / SYSTEM SET-UP INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced technicians familiar w ith similar types of commercial grade communications equipment. It contains all require

6、d service information for the equipment and is current as of the publication date. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions. These are issued as required. ORDERING REPLACEMENT PARTS When ordering replacement parts or equipment information,

7、 the full part identification number should be included. This applies to all parts, components, kits, or chassis. If the part number is not known, include the chassis or kit number of which it is a part, and a sufficient description of the required component for proper identification. PERSONAL SAFET

8、Y The following precautions are recommended for personal safety: DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated. SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere. This equipment should

9、be serviced by a qualified technician only. SERVICE This radio is designed for easy servicing. Refer to the schematic diagrams, printed circuit board views, and alignment procedures contained within. SYSTEM SET-UP Unit ModelTX-RX UnitFrequency rangeRemarks & destination TK-3160K,MX57-6730-10450490MH

10、z IF1 : 49.95MHz LOC : 50.4MHz TK-3160 3 OPERATING FEATURES 1. Operation Features Installing the (Optional) Antenna Screw the antenna into the connector on the top of the transceiver by holding the antenna at its base and turning it clockwise until secure. Installing the Belt Clip Note:When first in

11、stalling the belt clip, you must remove the battery pack from the rear of the transceiver. 1Remove the two screws from the rear of the transceiver, then remove the small, plastic black covering that was held in place. 2Insert the belt clip mount into the space on the rear of the transceiver. 3Using

12、the 2 screws, affix the belt clip in place. Note:Do not dispose of the plastic black covering! If you remove the belt clip, replace the covering into the space on the rear of the transceiver. Either this covering or the belt clip must be in place, otherwise the battery pack may not remain installed

13、properly. Installing the Cover over the Speaker/ Microphone Jacks Note:When installing the speaker/ microphone jack cover, you must remove the battery pack from the rear of the transceiver. If you are not using a speaker/ microphone, install the cover over the speaker/ microphone jacks using the sup

14、plied screw. Note:To lift the cover after it has been installed, use a piece of hardened plastic or metal, such as a small screwdriver. Lift the cover by its tab, beside the screwhole, taking care not to damage the cover. Installing the (Optional) Speaker/ Microphone Note:When installing the optiona

15、l speaker/ microphone and its locking bracket, you must remove the battery pack from the rear of the transceiver. 1Insert the speaker/ microphone plugs into the speaker/ microphone jacks. 2Attach the locking bracket using the supplied screw. Note:To lift the locking bracket after it has been install

16、ed, use a piece of hardened plastic or metal, such as a small screwdriver. Lift the bracket by its tab, beside the screwhole, taking care not to damage the bracket. GETTING ACQUAINTED The transceiver is shown with the optional KNB-24L battery pack. qqqqqLED indicator Lights red while transmitting. L

17、ights green while receiving. Flashes orange while receiving a 2-Tone, DTMF, or FleetSync signal that matches the one set up in your transceiver. If programmed by your dealer, flashes red when the battery power is low while transmitting. wChannel Switch Rotate to select a channel from 1 to 16. ePower

18、 switch/ Volume control Turn clockwise to switch ON the transceiver. Rotate to adjust the volume. To switch OFF the transceiver, turn counterclockwise fully. rAUX key This is a PF (Programmable Function) key. Press it to activate its auxiliary function (page 4). The default setting for this key is N

19、one. tPTT (Push-to-Talk) switch Press this switch, then speak into the microphone to call a station. ySide 1 key This is a PF (Programmable Function) key. Press it to activate its auxiliary function (page 4). The default setting for this key is None. uSide 2 key This is a PF (Programmable Function)

20、key. Press it to activate its auxiliary function (page 4). The default setting for this key is Squelch Off Momentary. Press each key to activate its auxiliary function. iSP/MIC jacks Connect an optional speaker/ microphone here. Antenna MicrophoneSpeaker 4 1 23 5 8 6 7 TK-3160 4 OPERATING FEATURES /

21、 REALIGNMENT Programmable Auxiliary Functions The AUX, Side 1, and Side 2 keys can be programmed with the auxiliary functions listed below: 2-Tone Encode Emergency 1 Monitor Momentary Monitor Toggle None RF Power Low Scan Scan Temporary Delete Scrambler Squelch Off Momentary Squelch Off Toggle 1 Thi

22、s function can be programmed only on the AUX key. 2. How to Enter Each Mode ModeOperation User modePower ON PC modeReceived commands from PC 1. Modes ModeFunction User modeFor normal use. PC modeUsed for communication between the radio and PC (IBM compatible). Data programmingUsed to read and write

23、frequency data modeand other features to and from the radio. PC test modeUsed to check the radio using the PC. This feature is included in the KPG- 82D. User mode PC mode PC test mode Data programming mode PC tuning mode REALIGNMENT 3.PC Mode 3-1. Preface The TK-3160 transceiver is programmed using

24、a personal computer, a programming interface (KPG-22) and programming software (KPG-82D). The programming software can be used with an IBM PC or compatible. Figure 1 shows the setup of an IBM PC for programming. 3-2. Connection procedure 1. Connect the TK-3160 to the personal computer with the inter

25、face cable. 2. When the POWER is switched on, user mode can be entered immediately. When the PC sends a command, the radio enters PC mode. When data is transmitting from the transceiver, the red LED lights. When data is received by the transceiver, the green LED lights. Notes: The data stored in the

26、 personal computer must match the model type when it is written into the EEPROM. Change the TK-3160 to PC mode, then attach the interface cable. 3-3. KPG-22 description (PC programming interface cable: Option) The KPG-22 is required to interface the TK-3160 with the computer. It has a circuit in its

27、 D-subconnector (25-pin) case that converts the RS-232C logic level to the TTL level. The KPG-22 connects the SP/MIC connector of the TK-3160 to the computers RS-232C serial port. 3-4. Programming software description KPG-82D is the programming software for TK-3160 supplied on a CD-ROM. This softwar

28、e runs under Windows 98, ME, Windows 2000 or XP on an IBM-PC or compatible machine. The data can be input to or read from TK-3160 and edited on the screen. The programmed or edited data can be printed out. It is also possible to tune the transceiver. Tuning cable (E30-3216-05) RF Power meter or SSG

29、Gray+ Gray/Black 1.5D-XV Lead wire+ 1.5D-XV Shield wire SP MIC KPG-22 KPG-82D IBM-PC Fig. 1 TK-3160 5 DISASSEMBLY FOR REPAIR / / , Packing 1. Separating the case assembly from the chassis. 1. Remove the volume knob z. 2. Remove the two screws x. 3. Lift the chassis c, and remove it from the case ass

30、embly. Note:After separating the case assembly from the chassis, remove the channel knob. 2. Separating the chassis from the TX/RX unit. 1. Remove the two screws v fixing the TX/RX unit B/2. 2. Remove the twelve screws b and two screws n fixing the TX/RX unit A/2. 3. Remove the solder from the anten

31、na terminal using a soldering iron m, then lift the unit off. z x x c Channel knob m , . v v bb b b b b b n TX/RX UNIT B/2 TX/RX UNIT A/2 3. How to remove the battery terminal block. 1. Remove the two screws /, then pull out the back cover . 2. Remove the screw . Note:To remove the TX/RX unit B/2, r

32、emove the solder using a soldering iron . Note:The two screws n of TX/RX unit A/2 are fixing the battery terminal block ,. TK-3160 6 Assembling Installation of battery terminal block and packing Install them so that no distortion or deformation occurs. Installation of speakers and cushion, and wire

33、styling of speakers Install the speakers so that they do not protrude from the cushion. Perform the wire styling of speakers as shown in a photograph. Attaching the cushion Attach the cushion as shown in Fig. 1. Note: Cushion must not cover the screws A,B and C. DISASSEMBLY FOR REPAIR Install the cu

34、shion according to the guide. Installation of chassis and cabinet assy Wire Styling B A C Fig. 1 Take screw B and MIC edge as reference line when sticking. G13-2018-04 Stick between screw A and B. G13-2017-04 G13-2020-04 Do not press this area, top packing easily deform. Second, press down the Chass

35、is to the cabinet assy as shown in the diagram. Good ConditionNG Condition After mount, packing should be in this condition. Packing deform. Packing protruded out. Note: Take care that the packing does not protrude from the chassis or case. Replace the protruded or deformed packing with a new one. F

36、irst, mount the set to the cabinet assy. TK-3160 7 Fig. 3 Wide/Narrow switching circuit CIRCUIT DESCRIPTION 1. Frequency Configuration The receiver utilizes double conversion. The first IF is 49.95 MHz and the second IF is 450 kHz. The first local oscillator signal is supplied from the PLL circuit.

37、The PLL circuit in the transmitter generates the necessary frequencies. Fig. 1 shows the frequencies. 1) Front End (RF AMP) The signal coming from the antenna passes through the transmit/receive switching diode circuit, (D204,D206,D208 and D212) passes through a BPF (L413 and L414), and is amplified

38、 by the RF amplifier (Q404). The resulting signal passes through a BPF (L409,L408 and 407) and goes to the mixer. These BPFs are adjusted by variable capacitors (D402,D403,D404,D405 and D406). The input voltage to the variable capacitor is regulated by voltage output from the microprocessor (IC805).

39、 2) First Mixer The signal from the front end is mixed with the first local oscillator signal generated in the PLL circuit by Q403 to produce a first IF frequency of 49.95 MHz. The resulting signal passes through the XF401 MCF to cut the adjacent spurious and provide the opitimun characteristics, su

40、ch as adjacent frequency selectivity. Fig. 2 Receiver section 2. Receiver The frequency configuration of the receiver is shown in Fig. 2. 3) IF Amplifier Circuit The first IF signal is passed through a four-pole monolithic crystal filter (XF401) to remove the adjacent channel signal. The filtered fi

41、rst IF signal is amplified by the first IF amplifier (Q202) and then applied to the lF system IC (IC401). The IF system IC provides a second mixer, second local oscillator, limiting amplifier, quadrature detector and RSSI (Received Signal Strength Indicator). The second mixer mixes the first IF sign

42、al with the 50.4MHz of the second local oscillator output (TCXO X1) and produces the second IF signal of 450kHz. The second IF signal is passed through the ceramic filter (CF401) to remove the adjacent channel signal. The filtered second IF signal is amplified by the limiting amplifier and demodulat

43、ed by the quadrature detector with the ceramic discriminator (CD401). The demodulated signal is routed to the audio circuit. 4) Wide/Narrow Switching Circuit Narrow and Wide settings can be made for each channel by switching the demodulation level. The WIDE (high level) and NARROW (low level) data i

44、s output from IC805, pin 54. When a WIDE (high level) data is received, Q401 turn off. When a NARROW (low level) data is received, Q401 turn on. Q401 turns off/on with the Wide/Narrow data and the IC401 detector output level is switched to maintain a constant output level during wide or narrow signa

45、ls. SP BPF IC602 AF Amp IC601 IC605 AF PA IC401 IF,MIX,DET ANT AQUA CF401 TCXO TUNE Q4 X3 multiply TUNE ANT SW BPF MCF 1st Local RF AMP Q404 MIXER Q403XF401 IF AMP Q402 AF VOL X1 16.8MHz 2nd Local Q401 C409 W/N R408 R409CD401 IFOQUAD IC401 FM IF SYSTEM 5R AFOUT Q402 H : Wide L : Narrow 5) Audio Ampl

46、ifier Circuit The demodulated signal from IC401 is amplified by IC602, and goes to AF amplifier through IC601. The signal then goes through an AF volume control (VR801), and is routed to an audio power amplifier (IC605) where it is amplified and output to the speaker. Fig. 1 Frequency configuration SP TX: 450 490MHz (K,M) PLL VCO IF SYSTEM ANT TCXO X3 multiply 49.95MHz MCF AF AMP MIC MIC AMP TX AMP RF AMP 50.4MHz CF 450kHz RX: 400.05 440.05MHz (K,M) TX/RX: 450 490MHz (K,M) 16.8MHz RF AMP ANT SW TK-3160 8 CIRCUIT DESCRIPTION 6) Tone Volume Fixed Circuit This function genera