Kenwood TK-380 Service Manual

Kenwood tk-380 uhf fm transceiver service manual

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Service manual (58 pages)

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Page 1 UHF FM TRANSCEIVER TK-380 SERVICE MANUAL © E VERSIONS 2000-4 PRINTED IN JAPAN B51-8522-00(S) 553 CONTENTS GENERAL ................. 2 Whip antenna (T90-0682-05):E SYSTEM SET-UP ..............2 (T90-0684-05):E3 OPERATING FEATURES ............3 Knob (ENC) (K29-5232-03) REALIGNMENT ..............16 CIRCUIT DESCRIPTION ............20 Knob (VOL) SEMICONDUCTOR DATA .............
Page 2 LOC : 44.395MHz SYSTEM SET-UP Merchandise received Frequency range (MHz) RF power Type TX/RX 440~470 4.0W TK-380 E Choose the type of transceiver TX/RX 406~450 4.0W TK-380 E3 Transceiver programming A personal computer (IBM PC or compatible), programming interface (KPG-36), and programming software (KPG-60D) are required for programming.
Page 3: Operating Features
2 Group or Channel selector knob (Programmable) 1. Operation Features Turning the group (or channel) selector knob clockwise The TK-380 is a UHF FM Radio designed in both 5tone increases the group (or channel) number by one. Turning Model and DTMF/2tone/DMS Model. The programmable the knob in the counterclockwise direction decreases the features are summarized.
Page 4 TK-380 OPERATING FEATURES 2-3. Programmable keys The FPU (KPG-60D) enables programmable keys to select the following functions. Function DTMF/2tone/DMS Model 5tone Model note None Auto Dial Auto Dial Programming AUX B Only when voice scrambler is not selected Call 1...
Page 5 TK-380 OPERATING FEATURES Auto Dial Channel Entry To transmit the stored DTMF code automatically. You can directly recall the channel using the numeric keypad When you select DTMF Encode in the “Auto Dial Mode” without using the [Channel Up/ Down].
Page 6 TK-380 OPERATING FEATURES Lamp Queue Press the [Lamp] key to toggle the display backlight ON or Press [Queue] key to toggle Queue mode ON or OFF. OFF. The backlight automatically turns OFF approximately 5 When it is ON, you will see the contents of the Queue buffer.
Page 7 TK-380 OPERATING FEATURES Scrambler Shift Press the [Scrambler] key to toggle the Scrambler ON or It allows you to enable [Shift + Function] key access. When OFF. When it is activated, “_” (underscore) appears on LCD. [Shift] key is pressed, SFT appears on LCD.
Page 8 TK-380 OPERATING FEATURES 2-4. Display 3. Scan Operating 1) Scan types Single Group Scan You can scan all valid (ADD) channels in the displayed group that can be selected with the group selector. Multiple Group Scan You can scan all valid (ADD) channels in the all valid (ADD) group.
Page 9 TK-380 OPERATING FEATURES 7) Revert Channel 4. Details of Features The revert channel is used to transmit during scanning and 1) Time-out timer set by the programming software (KPG-60D). The time-out timer can be programmed off or in 30 seconds 1 Priority increments from 30 seconds five minutes.
Page 10 TK-380 OPERATING FEATURES 9) "TOT" Reset Time 15) Auto Light on The transceiver has "TOT" reset timer. This timer is the You can use the transceiver to turn on the backlight minimum wait time allowed during a transmission that will reset automatically when a key is pressed.
Page 11 Please notice that the following status numbers are used General for special purposes; The Alphanumeric Two-way Paging Function (DMS) is a Kenwood proprietary protocol. It enables a variety of paging 80~89 : Reserved for future use. functions. 90 : Remote kill on. Disable all transceiver functions.
Page 12 TK-380 OPERATING FEATURES Short Messase (Optional) Parameters A maximum of 48 characters can be sent (External GTC Count equipment is required). Received Short Messages will be Number of “Go To data Channel” messages to be sent displayed in the same manner as a Status Message. A...
Page 13 Receive Code, #01. Range: You can receive the Receive Code after the modification. ZVEI, CCIR, EEA, PZVEI, DZVEI, PCCIR, PDZVEI, ZVEI- 2, EIA, Natel, AP-369, Kenwood Selectable Selcall Digit Select the check box to change Selcall Code (maximum 8 Monitor Function digits) manually when transmitting Encode Code.
Page 14: Audible User Feedback Tones
TK-380 OPERATING FEATURES Copy from TX/RX Address Programmable Alert Tone You can select to copy the digit to the memory when you You can program the alert type from type 1 to type 8, when change the channel, using [Selector] key.
Page 15 TK-380 OPERATING FEATURES Key press tone [A] Sounds when a key is pressed. For toggle keys, sounds when toggle function is turned on (key press tone [B] sounds when it is turned off). Key press tone [B] Sounds when a key is pressed. For toggle keys, sounds when the toggle function is turned off (key press tone [A] sounds when it is turned on).
Page 16 PC tuning mode PC test mode Clone mode 5-2. Connection procedure 1. Connect the TK-380 to the personal computer with the Self programming interface cable. mode 2. When the POWER switch on, user mode can be entered immediately. When PC sends command the radio enter PC mode, and “PROGRAM”...
Page 17: Clone Mode
2. Set the communications speed (normally, 57600 bps) and communications port in the configuration item. 1. Turn the master TK-380 power ON with the [D] key held 3. Set the firmware to be updated by File name item. down. If the Data password is set to the TK-380, the TK- 4.
Page 18: Self Programming Mode
If you press a key while "CLONE LOCK" is displayed. the This mode (self programming mode) cannot be set when it number that was pressed is displayed on the TK-380. Each has been disabled with the KPG-60D. press of the key shifts the display in order to the left. When you enter the password and press the [∗] key, "CLONE...
Page 19 TK-380 REALIGNMENT Flow Chart Self programming mode [MON] [MON] Channel setting mode Channel selection Group selection [MON] RX frequency [CALL] [CALL] [C]/[D] [MON] RX signalling DQT N DQT I [CALL] [CALL] [CALL] [C]/[D] [MON] TX frequency [CALL] [CALL] [C]/[D] [MON]...
Page 20: Circuit Description
TK-380 CIRCUIT DESCRIPTION 1. Overview voltage to the variable capacitor is regulated by the voltage output from the D/A converter (IC8). The signal is amplified by This transceiver is UHF/FM portable transceiver designed RF amplifier Q24, and passed through the bandpass filter...
Page 21 TK-380 CIRCUIT DESCRIPTION R117 Q305 C100 Q304 C119 INT.SP IC12 FM IF SYSTEM EXT.SP "H" : Wide, Semi wide "L" : Narrow Q308 IC300 Q301 Fig. 4 Audio amplifier circuit 3-5. Squelch circuit The output from IC12 enters FM IC again, then passed through a band-pass filter.
Page 22 8 of the PLL IC. IC13 Q300 IC25 (1/2) The TK-380’s VCO consists of 2VCO and covers a dual range LIMIT COMP of the 395.15~425.15MHz (E), 361.15~405.15MHz (E3), and the 440~470MHz. The VCO generates 395.15~425.15MHz (E),...
Page 23 TK-380 CIRCUIT DESCRIPTION 6-2. Low battery warning BUFF drive The battery voltage is monitored by the microprocessor (TX : Low) (IC19). When the battery voltage falls below the voltage set by BUFF the Low Battery Warning adjustment, the red LED flashes to notify the operator that it is time to replace the battery.
Page 24 TK-380 CIRCUIT DESCRIPTION 7-2. Decode 7. Signalling Circuit Low-speed data (QT,DQT) 7-1. Encode The demodulated signal from the IF IC (IC12) is amplified Low-speed data (QT,DQT) by IC4 (2/2) and passes through a low-pass filter (IC11) to Low-speed data is output from pin 1 of the CPU. The signal remove audio components.
Page 25 TK-380 CIRCUIT DESCRIPTION 8. Power Supply Circuit 9. Optional Board Terminal Battery +B is supplied via a 3A fuse from the battery terminal Terminals for mounting the option board are provided at connected to the TX-RX unit. After passing through the power the bottom edge of the TX-RX unit.
Page 26: Semiconductor Data
TK-380 SEMICONDUCTOR DATA Microprocesser : 30620M8A-394GP (TX-RX UNIT : IC19) Pin function Port Port Function Function Name Name LSDOUT O Low speed data output. GND. HSDOUT High speed data output. 63~70 A0~A7 Flash memory address bus. HSDIN High speed data input.
Page 27 TK-380 SEMICONDUCTOR DATA Shift register 2 : BU4094BCFV (TX-RX UNIT : IC22) Pin function Port Port Name Function Strobe Data Clock Audio mute 1. H : Unmute, L : Mute TX Logic Signal output. Active logic level is Low. Logic type can select “TX Line” or “Mic PTT” in the KPG-60D.
Page 28 TK-380 SEMICONDUCTOR DATA Audio Processor : TC35453F (TX-RX Unit : IC13) Block diagram Pin function Port Port Function Function No. Name No. Name RXFO RX audio filter output. Data synchronized clock input. RXGS RX audio signal level setting amplifier REGS1 Internal register select input 1 output.
Page 29 TK-380 SEMICONDUCTOR DATA D/A Converter : M62364FP (TX-RX Unit : IC8) Block diagram Pin function Pin No. Pin code I/O Function Pin No. Pin code I/O Function D/A converter input. 10,11 VO3,VO4 8-bit resolution D/A. VO1,VO2 8-bit resolution D/A. 12,13 VI4,VI5 D/A converter input.
Page 30 TK-380 SEMICONDUCTOR DATA PLL System : SA7025DK (TX-RX Unit : IC14) Audio Power Amplifier : TDA7053AT Block diagram (Display Unit : IC300) Block diagram Pin description Pin description Pin No. Symbol Description Pin No. Symbol Description CLOCK Serial clock input.
Page 31 TK-380 SEMICONDUCTOR DATA Voltage Detector : RN5VL42C VCO System : X58-4592-XX (SUB Unit : A1) Circuit diagram (TX-RX Unit : IC3) Block diagram (CMOS output) X58-4592-XX SUB UNIT Pin function Pin No. Pin code Function Output. Power supply. Ground. Counter : MC74HC4017F (Display Unit : IC301)
Page 32: Description Of Components
TK-380 DESCRIPTION OF COMPONENTS DISPLAY UNIT (X54-3210-12) Ref. No. Use/Function Operation/Condition Ref. No. Use/Function Operation/Condition IC300 Audio power amplifier Transistor IF W/N switch sets to on when Wide IC301 Counter /Key scan Transistor Ripple filter Q300 DC switch / INT MIC on/off...
Page 33 TK-380 PARTS LIST...
Page 34: Parts List
TK-380 PARTS LIST L: Scandinavia K: USA P: Canada ∗ New Parts. indicates safety critical components. Y: PX (Far East, Hawaii) T: England E: Europe Parts without Parts No. are not supplied. Y: AAFES (Europe) X: Australia M: Other Areas Les articles non mentionnes dans le Parts No.
Page 35 TK-380 PARTS LIST DISPLAY UNIT (X54-3210-12) TX-RX UNIT (X57-6200-XX) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts L304,305 L92-0141-05 FERRITE CHIP TX-RX UNIT (X57-6200-XX) -10:E, -11:E3 L306,307 L92-0138-05 FERRITE CHIP CK73GB1H471K CHIP C...
Page 36 TK-380 PARTS LIST TX-RX UNIT (X57-6200-XX) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts CK73GB1H102K CHIP C 1000PF C130 CK73GB1H102K CHIP C 1000PF C65 ,66 CC73GCH1H820J CHIP C 82PF C131 CK73GB1H562J CHIP C...
Page 37 TK-380 PARTS LIST TX-RX UNIT (X57-6200-XX) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts C198 CC73GCH1H070B CHIP C 7.0PF C245 CC73GCH1H2R5B CHIP C 2.5PF C199 CC73GCH1H101J CHIP C 100PF C245 CC73GCH1H030B CHIP C 3.0PF...
Page 38 TK-380 PARTS LIST TX-RX UNIT (X57-6200-XX) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts L39-1272-05 TOROIDAL COIL RK73GB1J154J CHIP R 150K 1/16W L92-0138-05 FERRITE CHIP RK73GB1J104J CHIP R 100K 1/16W L40-1571-36 SMALL FIXED INDUCTOR(15NH)
Page 39 TK-380 PARTS LIST TX-RX UNIT (X57-6200-XX) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts RK73GB1J103J CHIP R 1/16W R136 RK73GB1J122J CHIP R 1.2K 1/16W R92-1252-05 CHIP R 0 OHM R137 RK73GB1J103J CHIP R...
Page 40 TK-380 PARTS LIST TX-RX UNIT (X57-6200-XX) SUB UNIT (X58-4592-XX) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts R271 RK73GB1J222J CHIP R 2.2K 1/16W S-81350HG-KD IC(VOLTAGE REGULATOR/5M) R272 R92-1252-05 CHIP R 0 OHM...
Page 41 TK-380 PARTS LIST SUB UNIT (X58-4592-XX) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts CC73HCH1H110J CHIP C 11PF CC73HCH1H470J CHIP C 47PF CK73HB1H102K CHIP C 1000PF CC73HCH1H0R5B CHIP C 0.5PF CK73HB1H471K CHIP C...
Page 42: Exploded View
TK-380 EXPLODED VIEW Display unit (A/2) A NUT :N14-0569-04 B M2.6x4 :N30-2604-46 C M2.6x10 :N30-2610-46 D M2.6x6 :N67-2606-46 :N79-2025-46 F M2x5 :N83-2005-46 IC100 Sub unit 20 56 TX-RX unit Display unit (B/2) (CHASSIS) S/NO label (ESN) S/NO label Parts with the exploded numbers larger than 700 are not supplied.
Page 43 TK-380 PACKING 38 Carton board (H13-1072-04) 6 Instrution mamual (B62-1266-00) 3 Cap (B09-0363-03) 52 Screw set (N99-2004-05) 37 Packing fixture (H12-3014-02) ANT Whip antenna (T90-0682-05):E 42 Hook (T90-0684-05):E3 (J29-0685-05) 39 Item carton case S/NO label (ESN) (H52-1226-12) UPC code label...
Page 44 TK-380 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Standard Signal Generator Frequency Range 400 to 470MHz (SSG) Modulation Frequency modulation and external modulation. Output -127dBm/0.1µV to greater than -47dBm/1mV Power Meter Input Impedance 50Ω. Operation Frequency 400 to 470MHz or more.
Page 45 ADJUSTMENT • Panel tuning Repair Jig (Chassis) Use jig (part No.: W05-0825-00) for repairing the TK-380. Place the TX-RX unit on the jig and fit it with 7 screws. The jig facilitates the voltage check and protects the module 2: RED (RX AF OUTPUT) when the voltage on the flow side of the TX-RX unit is checked during pepairs.
Page 46: Test Mode
TK-380 ADJUSTMENT • Sub LCD indicator Test Mode “SFT” appears at Shift ON. Test mode operating features This transceiver has a test mode. To enter test mode, press Frequency and signalling [B] key and turn power on. Hold [B] key until test channel The set has been adjusted for the frequencies shown in the No.
Page 47 TK-380 ADJUSTMENT Signalling Panel Tuning Mode Signalling No. UHF-F1 TEST Ch None None RX frequency (MHz) TX frequency (MHz) None 100Hz Square 440.05000 440.10000 QT 67.0Hz QT 67.0Hz 447.05000 447.10000 QT 151.4Hz QT 151.4Hz 455.05000 455.10000 QT 210.7Hz QT 210.7Hz 462.05000...
Page 48 TK-380 ADJUSTMENT Tuning mode 5-point tuning ex.RF Power High HPOW xxx L HPOW xxx L2 HPOW xxx C HPOW xxx H2 HPOW xxx H HPOW xxx 3-point tuning ex.Max Deviation (Narrow) n MAX xxx nL MAX xxx nC MAX xxx...
Page 49 TK-380 ADJUSTMENT Common Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 1. Setting 1) BATT terminal voltage:7.5V 2) SSG Standard modulation [Wide] MOD:1kHz, DEV:3kHz [Semi wide] MOD:1kHz, DEV:2.4kHz [Narrow] MOD:1kHz, DEV:1.5kHz 2. VCO lock...
Page 50 TK-380 ADJUSTMENT Transmitter Section [Panel Tuning Mode except when Panel TEST Mode is specified.] Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 7. DQT Balance 1) Adj item [n BAL] Power meter Panel Panel Encoder...
Page 51 TK-380 ADJUSTMENT Transmitter Section [Panel Tuning Mode except when Panel TEST Mode is specified.] Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method ±50Hz 11.DQT 1) Adj item [n DQT] Power meter Panel Panel Encoder 0.35kHz Devition Adjust [∗∗∗]...
Page 52 TK-380 ADJUSTMENT Transmitter Section [Panel Tuning Mode except when Panel TEST Mode is specified.] Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 15.BATT 1) Adj item [BATT] Power meter Panel Panel Encoder After pressing BATT terminal Detection Adjust [∗∗∗]...
Page 53 TK-380 ADJUSTMENT Receiver Section [Panel Tuning Mode except when Panel TEST Mode is specified.] Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 1. Sensitivity 1) Adj item [SENS] Tracking Panel Panel Encoder Adjustment Adjust Adjust [∗∗∗] (E)
Page 54 TK-380 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 2. Sensitivity [Panel Test Mode] Panel Check 1) CH-Sig:1-1 AF VTVM Universal Check 12dB SINAD or SSG OUT Oscilloscope connector more Wide:-118dBm (0.28µV) (MOD:1kHz / ±3kHz) Narrow:-117dBm (0.316µV)
Page 55 TK-380 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 6. Squelch 1) Adj item [n SQLT] Panel Encoder Adjust to point (Tight) Adjust [∗∗∗] AF VTVM Universal knob of opening Adjust SSG OUT: Oscilloscope connector squelch.
Page 56: Terminal Function
TK-380 TERMINAL FUNCTION CN No. Pin No. Name I/O Function CN No. Pin No. Name I/O Function TX-RX UNIT (X57-6200-XX): TX-RX section KEY output Power input after passing through KEY output the fuse. Key scan IC reset input Power input after passing through Data input for LCD driver/decade counter.
Page 57 TK-380 PC BOARD VIEW DISPLAY UNIT (X54-3210-12) Component Side View DISPLAY UNIT (X54-3210-12) X54-3210-12 (B/2) S301 S302 S303 J72-0517-22 LAMP LCD ASSY CN302 ∗ D301 X54-3210-12 (A/2) – J72-0517-22 Component side Pattern 1 Pattern 2 Pattern 3 Pattern 4 Foil side...
Page 58 TK-380 PC BOARD VIEW DISPLAY UNIT (X54-3210-12) Foil Side View CN303 X54-3210-12 (B/2) J72-0517-22 DISPLAY UNIT (X54-3210-12) D321 R300 R302 R304 CN301 CN300 R303 R305 R301 C302 R311 R312 Q300 R306 CP300 R325 L309 R338 C331 C328 D320 R324 Q301...
Page 59 TK-380 PC BOARD VIEW DISPLAY UNIT (X54-3210-12) Component Side + Foil Side View CN303 X54-3210-12 (B/2) S301 S302 S303 J72-0517-22 LAMP DISPLAY UNIT (X54-3210-12) D321 R300 R302 LCD ASSY R304 CN301 CN300 R303 R305 CN302 R301 C302 R312 R311 Q300...
Page 60 TK-380 PC BOARD VIEW TX-RX UNIT (X57-6200-XX) Component Side View TX-RX UNIT (X57-6200-XX) MONI R266 C241 LAMP R270 IC100 C230 C223 R110 X57-6200-XX R259 R416 C102 C139 J72-0735-12 C215 C141 C124 C119 C200 C125 5CNS C421 R115 C251 D401 R279...
Page 61 TK-380 NJU7201U50 BU4094BCFV NJM2904V TA75S01F LC73872M PC BOARD VIEW TX-RX UNIT (X57-6200-XX) Foil Side View TX-RX UNIT IC16 R100 (X57-6200-XX) C248 R114 R109 R276 C120 R299 R116 R154 R280 C261 IC17 C137 C121 X57-6200-XX CN10 C213 C189 R219 R407 C122...
Page 62 TK-380 PC BOARD VIEW TX-RX UNIT (X57-6200-XX) TX-RX UNIT (X57-6200-XX) Component Side + Foil Side View IC16 R100 MONI R266 C241 C248 LAMP R270 IC100 R109 R114 R276 C120 C230 R299 R116 R154 R280 C261 IC17 C137 C121 C223 R110...
Page 63 TK-380 SCHEMATIC DIAGRAM SCNLO Table on the left indicates the parts used among different serial numbers. • Note) Ref. No. : Parts of pattern 1.
Page 64 TK-380 TK-380 TK-380 TK-380 BLOCK DIAGRAM LEVEL DIAGRAM KNB-16A/17A (Ni-Cd BATTERY) / KPG-36 (PROGRAMMING INTER- FACE CABLE) / KSC-19 (CHARGER) / KRA-15 (WHIP ANTENNA) KNB-16A KNB-17A KPG-36 External View External View External View KNB-16A KNB-17A KSC-19 External View Circuit Diagram...
Page 65 TK-380 KMC-25 (SPEAKER MICROHONE) Circuit Diagram External View Specifications Microphone Impedance ......2kΩ Sensitivity ........ -65dB±4.0dB at 1kHz Speaker Impedance ......16Ω Input ........0.5W Maximum input ......1.5W Dimensions ........62W x 81 H x 29 D (mm) Weight (With plug cord) ....Approx. 0.17kg...
Page 66: Specifications
KENWOOD ELECTRONICS TECHNOLOGIES(S) PTE LTD. KENWOOD ELECTRONICS U.K. LIMITED Sales Marketing Division KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB United Kingdom 1 Ang Mo Kio Street 63, Singapore 569110 KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands...

Kenwood TK-380 Service Manual

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