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VHF FM TRANSCEIVER
TK-190
SERVICE MANUAL
REVISED
Antenna
(KRA-21:Option)
Knob assy (SEL)
(K29-5282-04)
Knob assy (VOL)
(K29-5283-04)
Panel assy
(A62-0779-03)
Knob assy
(Side key)
(K29-5423-04)
Cabinet assy
(A02-2139-63)
Photo is TK-190 K type.
Does not come with antenna.
Antenna is available as an option.
© 2001-2 PRINTED IN JAPAN
B51-8510-10 ( S ) 858
CONTENTS
GENERAL ................................................................. 2
SYSTEM SET-UP ..................................................... 2
OPERATING FEATURES ......................................... 3
REALIGNMENT ...................................................... 10
CIRCUIT DESCRIPTION ......................................... 12
SEMICONDUCTOR DATA ..................................... 20
DESCRIPTION OF COMPONENTS ....................... 22
PARTS LIST ............................................................ 24
EXPLODED VIEW .................................................. 31
PACKING ................................................................ 32
DISASSEMBLY FOR REPAIR ................................ 33
ADJUSTMENT ....................................................... 34
FINAL UNIT (X45-3610-10) ............................... 43
CONTROL UNIT (X53-3930-10) ........................ 43
TX-RX UNIT (X57-608X-XX) ............................ 47
SCHEMATIC DIAGRAM ........................................ 53
BLOCK DIAGRAM .................................................. 59
LEVEL DIAGRAM ................................................... 61
TERMINAL FUNCTION ......................................... 62
KNB-17A (Ni-Cd BATTERY) .................................. 63
KMC-25A (SPEAKER MICROPHONE) .................. 64
KSC-19 (CHARGER) ............................................... 65
KSC-20 (RAPID CHARGER) ................................... 65
KBP-4 ....................................................................... 65
SPECIFICATIONS ............................... BACK COVER
CAUTION
When using an external power connector,
please use with maximum final module protec-
tion of 10V

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Table of Contents

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   Summary of Contents for Kenwood TK-190

  • Page 1: Table Of Contents

    KPG-36 (PROGRAMMING INTERFACE CABLE) ..65 KBP-4 ............... 65 SPECIFICATIONS ....... BACK COVER CAUTION Photo is TK-190 K type. Does not come with antenna. When using an external power connector, Antenna is available as an option. please use with maximum final module protec-...
  • Page 2: General

    Caution quired component for proper identification. Do not bring the antenna close to metallic objects. FCC COMPLIANCE AND TYPE NUMBERS Model Type acceptance number Frequency range Compliance TK-190 K ALH29521110 29.7~37.0MHz Parts 22,90 TK-190 K2 ALH29521120 35.0~50.0MHz Part 90...
  • Page 3: Operating Features

    TK-190 OPERATING FEATURES 1.Getting Acquainted Display SMA male type Battery pack antenna connector release latch “ , ( ” Display , ) r S “ ” [Bottom View] [Top View] e l i Microphone “ ( ” Speaker . ) l...
  • Page 4 TK-190 OPERATING FEATURES 4) Selected channel 2. Scan Operating The transceiver reverts to the channel before scanning or 2-1. Scan Start Condition the channel that you changed during scan. Two or more non-priority channels must be added to all 5) Priority with talkback channels that can be scanned.
  • Page 5: Optional Features

    TK-190 OPERATING FEATURES 3-10. Emergency Channel Display 3. Optional Features The transceiver can be programmed to display "EMER- You can use these features using the programming soft- GENCY" channel name when it is in emergency mode. ware (KPG-59D). If you set to "off" by KPG-59D the transceiver shows se- 3-1.
  • Page 6 TK-190 OPERATING FEATURES 3-17. "TOT" (Time-Out Timer) 4. Channel Features The transceiver has the "TOT". This parameter selects You can use these features using the programming soft- the period of time users can continuously transmit. ware (KPG-59D). When the selected period passes, the transceiver gener- 4-1.
  • Page 7: Key Functions

    TK-190 OPERATING FEATURES 4-6. TX Power 5. Key Functions You can set the transmission power "High" or "Low" for each channel. The each power setting is tuned at factory. Programmable Auxiliary Functions However, you can re-tune the power, using PC Tuning Mode of KPG-59D.
  • Page 8 TK-190 OPERATING FEATURES You can use these features, using the programming soft- 5-9. Key Lock ware (KPG-59D). Selector function is selectable channel se- Pressing this key causes the transceiver to accept an en- lect or group select. try of only the [Shift], [KeyLock], [PTT], [Emergency] keys, The functions for Toggle switch are listed page 7 (Fig.
  • Page 9 IBM-PC or compatible machine. Press this key again, the transceiver mutes the speaker The data can be input to or read from TK-190 and edited and "MON" disappears and busy "LED" lights off. on the screen. The programmed or edited data can be printed out.
  • Page 10: Realignment

    TK-190 REALIGNMENT 1. Mode 3. Clone Mode 1. Turn the master side transceiver power on with the [Side 1] and [Side 2] keys held down. The master side transceiver displays "CLONE". User mode 2. Set the power switch on the slave side transceiver to...
  • Page 11 TK-190 REALIGNMENT 4-3. Programming 1. Set the transceiver to Main Programming Mode. (Refer to page 10) 2. Connect the KPG-36 to the transceiver. 3. Start up the programming software (KPG-59D), select "firmware program" in the "Program" item, and press the Return key on the personal computer.
  • Page 12: Circuit Description

    1. Overview The 1st IF signal is amplified (Q302) and fed into IC300 in The KENWOOD model TK-190 is a VHF/FM hand-held the FM IC. The IF signal is then mixed with the 2nd local transceiver designed to operate in the frequency range of oscillator frequency of 129.005MHz to generate the 2nd IF...
  • Page 13 TK-190 CIRCUIT DESCRIPTION 3-4. Audio amplifier circuit 3-5. Squelch circuit • TX-RX unit It amplifies the demodulated noise signal from FM IC (IC300) after filtering through BPF circuit. Then, the ampli- The demodulated signal from IC300 goes through IC301, fied signal is coverted to DC signal by the detection circuit.
  • Page 14 TK-190 CIRCUIT DESCRIPTION 4-3. Down-mixer 4. Transmitter System At Q102, a modulated VCO2 signal is mixed with 2nd lo- 4-1. Microphone amplifier cal oscillator signal, 129.005MHz. The difference of the two The signal from IC3 (control unit) goes through the mute signals is used for the transmission signal (29.7 –...
  • Page 15 The output of the VCXO is applied to pin 8 of the PLL IC. supplies 5V (5C) to the common circuit. AVR circuit The VCO of TK-190 covers a 7.3MHz frequency spread. (Q400,Q402) supplies voltage to the TX circuit. 5R and 5RB VCO (L800) has 2 internal VCOs.
  • Page 16 TK-190 CIRCUIT DESCRIPTION 7-4. D/A converter 7. Control Circuit IC1 and IC603 is used as a conventional semi-fixed-resis- The control unit circuit consists of microprocessor IC406 tor converter. It sets the following : and flash memory IC414. It controls the TX-RX unit and 1) RX filter tuning transfers data to and from the control unit.
  • Page 17 TK-190 CIRCUIT DESCRIPTION 7-6. Low battery warning 8-2. Decode • Low-speed data (QT, DQT) The battery voltage is monitored by the microprocessor (IC406). When the battery voltage falls below the voltage The demodulated signal from the FM IC (IC300) is ampli-...
  • Page 18 The term compander is a compound of compressor and ration of the signal quality due to noise during transmission. expander. The compander reduces noise by utilizing a com- The TK-190 contains IC607 (TC35453F) to perform this pressor and an expander. operation.
  • Page 19 TK-190 CIRCUIT DESCRIPTION 10-1. Option port 1 (For ANI board etc.) Port name Description Connection Note Abbreviation (PCB) Name DATI Data In Board data input Connected to the circuit Reference 1kHz STD Dev → Transceiver (Receiver demodulation circuit) → ANI board...
  • Page 20: Semiconductor Data

    TK-190 SEMICONDUCTOR DATA 1. Microprocessor : 784214GC0618EU (TX-RX Unit IC406) 1-1. Terminal function Pin No. Port name Function Pin No. Port name Function P120/RTP0 MODEM FCLR P84/A4 – CAN'T USE. P121/RTP1 SB Control P85/A5 – P122/RTP2 D/A CONVERTER CS P86/A6 –...
  • Page 21 TK-190 SEMICONDUCTOR DATA 2. D/A Converter : M62354GP (TX-RX Unit IC1) 3. LCD Driver : LC75824W (Control unit IC101) 2-1. Terminal connection 3-1. Block diagram ......VDD1 Common Segment Driver & Latch driver VDD2 2-2. Block diagram Shift Register...
  • Page 22 TK-190 SEMICONDUCTOR DATA / DESCRIPTION OF COMPONENTS 4. VCO System : L78-0481-05 (TX-RX Unit L800) 5. Active DBM : GN2011 (TX-RX Unit IC200) 4-1. Circuit diagram 5-1. Circuit diagram VCO2 2SK508NV(K52) 10uH 2SC4649(N,P) Vcc2 L34-4620-05 Vcc1 VCO1 2SK508NV(K53) KV1470 10uH...
  • Page 23: Description Of Components

    TK-190 DESCRIPTION OF COMPONENTS TX-RX Unit (X57-608X-XX) Ref. No. Use / Function Operation / Condition Ref. No. Use / Function Operation / Condition D/A converter Q105 RF amplifier APC comparator Q106 RF amplifier IC101 PLL IC containing two circuits Q200...
  • Page 24: Parts List

    TK-190 PARTS LIST ∗ New Parts. indicates safety critical components. L : Scandinavia K : USA P : Canada Parts without Parts No. are not supplied. Y : PX (Far East, Hawaii) T : England E : Europe Les articles non mentionnes dans le Parts No. ne sont pas fournis.
  • Page 25 TK-190 PARTS LIST CONTROL UNIT (X53-3930-10) TX-RX UNIT (X57-608X-XX) 0-10:K, 0-11:K2 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation L101 L92-0138-05 FERRITE CHIP TX-RX UNIT (X57-608X-XX) 0-10:K, 0-11:K2 R90-0723-05 MULTI-COMP 47KX2...
  • Page 26 TK-190 PARTS LIST TX-RX UNIT (X57-608X-XX) 0-10:K, 0-11:K2 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C109 CK73GB1H103K CHIP C 0.010UF C214 CC73GCH1H040C CHIP C 4.0PF C110 CK73GB1H102K CHIP C...
  • Page 27 TK-190 PARTS LIST TX-RX UNIT (X57-608X-XX) 0-10:K, 0-11:K2 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C429,430 CK73GB1H102K CHIP C 1000PF C657 C92-0714-05 CHIP-TAN 4.7UF 6.3WV C431 CK73GB1H471K CHIP C...
  • Page 28 TK-190 PARTS LIST TX-RX UNIT (X57-608X-XX) 0-10:K, 0-11:K2 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation L208 L40-1281-37 SMALL FIXED INDUCTOR(0.120UH/8) R104 R92-1252-05 CHIP R 0 OHM L211,212 L39-1272-05 TOROIDAL COIL...
  • Page 29 TK-190 PARTS LIST TX-RX UNIT (X57-608X-XX) 0-10:K, 0-11:K2 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R218,219 R92-1252-05 CHIP R 0 OHM R450 RK73GB1J473J CHIP R 1/16W R222,223 R92-1252-05 CHIP R...
  • Page 30 TK-190 PARTS LIST TX-RX UNIT (X57-608X-XX) 0-10:K, 0-11:K2 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R660 RK73GB1J223J CHIP R 1/16W Q104,105 2SC4617(R) TRANSISTOR R661 RK73GB1J394J CHIP R 390K 1/16W...
  • Page 31: Exploded View

    TK-190 EXPLODED VIEW : N14-0577-04 : N14-0578-04 M2.6 x8 BLK : N30-2608-45 M2 x 3 : N78-2030-46 M2 x 3 : N79-2035-46 G M2 x 4 : N83-2004-46 H M2 x 5 : N83-2005-45 X53 B/6 X53 A/6 X53 D/6...
  • Page 32: Packing

    TK-190 PACKING 5 Dressing plate (B03-0594-04) 13 Instruction manual 6 Cap (Universal) (B62-1175-00) (B09-0363-03) 15 Stopper (D32-0421-24) 40 Protection bag (H25-0029-04) 65 Screw set (N99-2004-05) 49 Belt hook (J29-0652-25) 12 Warranty card (B46-0470-00) 39 Packing fixture (H12-3018-02) 42 Item carton case...
  • Page 33: Disassembly For Repair

    TK-190 DISASSEMBLY FOR REPAIR Disassembly of Front Case and Chassis Remove the Side Key Assy 1. Remove the 2 screws ( ) and a cap fixed screw ( 1. The side key assy is clips form a slide-hook structure. Lift 2.
  • Page 34: Adjustment

    TK-190 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Standard Signal Generator Frequency Range Maximum 50MHz or more. (SSG) Modulation Frequency modulation and external modulation. Output –133dBm/0.05µV to 7dBm/501mV Power Meter Input Impedance 50Ω. Operation Frequency Up to 50MHz.
  • Page 35 ADJUSTMENT • Panel tuning Repair Jig (Chassis) Use jig (part No.: W05-0824-00) for repairing the TK-190. Place the TX-RX unit on the jig and fit it with 7 screws. Note : Supply power from an external power supply (Battery terminal : +, jig (chassis) : –)
  • Page 36 TK-190 ADJUSTMENT • Memory clear function Panel Test Mode Pressing [PTT] while holding down [Orange] in Panel test This mode is used for making transceiver connection mode, triggers the Memory clear function which clears all tests and clearing the memory.
  • Page 37 TK-190 ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1. PLL lock 1) Set panel test mode Panel Check 1.0~1.6V voltage CH No. : 2 TX-RX check Signalling No. : 1 2) Set panel test mode 4.3V or less...
  • Page 38 TK-190 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 4. TX high 1) Set panel test mode Power meter Panel Check 5.5W or more power CH No. : 1 2.3A or less check Signalling No. : 1...
  • Page 39 TK-190 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment ± 50Hz 8. Maximum 2) Push Tone2 to select Power meter Panel Panel TOP1/ 3.95kHz POW ∗ ∗ ∗ deviation Deviation TOP2 (According to the adjustment meter larger +, –)
  • Page 40 TK-190 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 14. Transmission 1) Set panel test mode Power meter Panel Check 42dB or more S/N check CH No. : 3 Deviation Signalling No. : 1 meter...
  • Page 41 TK-190 TK-190 ADJUSTMENT ADJUSTMENT Measurement Adjustment Measurement Adjustment Item Condition Specifications/Remarks Item Condition Specifications/Remarks Test- Test- Unit Terminal Unit Parts Method Unit Terminal Unit Parts Method equipment equipment 7. Squelch 1) Set panel test mode Panel Panel TOP1/ Adjust to point of 3.
  • Page 42: Pc Board Views

    TK-190 PC BOARD VIEWS FINAL UNIT (X45-3610-10) Component Side View CONTROL UNIT (X53-3930-10 B/6,D/6,E/6,F/6) Component Side View SW B SW A FINAL UNIT (Component side) Ref No. Address X45-3610-10 TOGGLE SW J72-0717-02 Component side CONTROL UNIT B/6 Pattern 1 (Component side) Pattern 2 Ref No.
  • Page 43 TK-190 PC BOARD VIEWS CONTROL UNIT (X53-3930-10 B/6,D/6,E/6,F/6) Foil Side View R106 IMN10 2SB798 UMC4 2SK1824 LC75824W R108 CN101 BLED TXLED R103 LAMP R104 IC101 TOGGLE DGND BU4094BCFV TC7SH08FU NJM2904V TDA7053AT TC7W04FU M62354GP CONTROL UNIT B/6 (Foil side) Ref.No. Address...
  • Page 44: Tx-rx Unit (x57-608x-xx)

    TK-190 PC BOARD VIEWS TX-RX UNIT (X57-608X-XX) 0-10:K,0-11:K2 Component Side View R33 R41 IC404 C467 DATI CODE4 C466 X57-608X-XX C471 C465 C234 CODE3 DATO CODE2 J72-0704-12 C469 TCNT CN401 C464 CODE1 C470 STONE C462 TXOUT AUDIH C461 RXOUT C468 MUTE...
  • Page 45 TK-190 PC BOARD VIEWS TX-RX UNIT (X57-608X-XX) 0-10:K,0-11:K2 Foil Side View X57-608X-XX C153 C152 R129 L212 C131 R122 R156 C227 C144 R131 J72-0704-12 L206 R216 D102 C151 X101 C149 R213 R130 L110 Q103 L202 L208 C140 C226 C224 L121 R149...
  • Page 46 TK-190 PC BOARD VIEWS TX-RX UNIT (X57-608X-XX) 0-10:K,0-11:K2 Component Side View + Foil Side View R33 R41 R129 C152 IC404 C467 C153 R122 C131 DATI CODE4 C466 R156 X57-608X-XX C471 C465 R131 C227 C234 CODE3 DATO R216 L206 C144 CODE2...
  • Page 47: Schematic Diagram

    TK-190 SCHEMATIC DIAGRAM...
  • Page 48: Block Diagram

    TK-190 SCHEMATIC DIAGRAM BLOCK DIAGRAM RF X57-608 Fuse K:29.7 ‘37MHz INT.ANT k2: 35 ‘50MHz +BATT Protect Buff Amp Mixer RF Amp Drive Amp Drive Amp Power Amp ANT SW 1SR154-40C 2SC4649 Buff Amp 129.005MHz SB SW Dual PLL VCO1/2 L104...
  • Page 49: Level Diagram

    TK-190 LEVEL DIAGRAM...
  • Page 50 TK-190 TERMINAL FUNCTION CN No. Pin No. Name I/O Function CN No. Pin No. Name I/O Function BTL input + for external speaker. TX-RX UNIT (X57-608X-XX) SP– BTL input – for external speaker. CN400 CH D CH switch data. MUTE –...
  • Page 51: Terminal Function

    TK-190 TERMINAL FUNCTION / KNB-17A (Ni-Cd BATTERY) KNB-17A External View CN No. Pin No. Name I/O Function – Non connect. INAFC Internal speaker switch input. EXTAFC External speaker switch input. (CN401) 31 AMPSW Audio amplifier switch. OPPTT Optional board enable.
  • Page 52 TK-190 KMC-25A (SPEAKER MICROPHONE) KMC-25A External View KMC-25A Circuit Diagram Universal SP/MIC connector 8.2mH 8.2mH SP– If the earphone jack output is too high, adjust the value of resistor R12. Earphone R12 0 jack ø3.5 8.2mH 2.2K 10µ – Shield 8.2mH...
  • Page 53: Programming Interface Cable)

    TK-190 KSC-19 (CHARGER) / KSC-20 (RAPID CHARGER) / KPG-36 (PROGRAMMING INTERFACE CABLE) KSC-19 External View KPG-36 External View KSC-19 Charging KNB-17A Voltage ..........7.2V Battery capacity ........1500mAh Charging time ........Approx. 8 hours KSC-20 External View KBP-4 External View...
  • Page 54: Specifications

    Mechelsesteenweg 418 B-1930 Zaventem, Belgium KENWOOD ELECTRONICS FRANCE S.A. 13, Boulevard Ney, 75018 Paris, France KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB United Kingdom KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands KENWOOD ELECTRONICS ITALIA S.p.A.

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