Kenwood TK-7180 Service Manual

Kenwood vhf fm transceiver service manual

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Instruction manual (196 pages)

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Page 1 VHF FM TRANSCEIVER TK-7180 SERVICE MANUAL GENERAL ... 2 SYSTEM SET-UP ... 3 REALIGNMENT ... 4 INSTALLATION ... 7 DISASSEMBLY FOR REPAIR ... 13 CIRCUIT DESCRIPTION ... 16 SEMICONDUCTOR DATA ... 20 COMPONENTS DESCRIPTION ... 22 PARTS LIST ... 24 EXPLODED VIEW ...
Page 2: General
5-1. Antenna system Control station. The antenna system selection depends on many factors and is beyond the scope of this manual. Your KENWOOD dealer can help you select an antenna system that will best serve your particular needs. 5-2. Radio location Select a convenient location for your control station radio which is as close as practical to the antenna cable entry point.
Page 3: System Set-Up
Modem GPS receiver (Option) KGP-2B Modem GPS controller (Option) See page 8. KAP-2 (Option) See page 10. VGS-1 (Option) KES-3 or KES-5 External speaker (Option) KMC-32 or KMC-36 (Option) Desk top microphone KMC-9C TK-7180 Speaker D-sub jack cap Ignition sense cable connector...
Page 4: Realignment
TK-7180 1. Modes User mode Panel test mode Panel tuning mode PC mode Data programming mode Firmware PC test mode programming mode Clone mode Firmware version information Clock adjustment mode Mode User mode For normal use. Panel test mode Used by the dealer to check the funda- mental characteristics.
Page 5: Clone Mode
2. When you enter the correct password, and “CLONE MODE” is displayed, the transceiver can be used as the cloning master. The following describes how to enter the password. TK-7180 ] key while “PROG 115200” is dis- ] key again while the...
Page 6 TK-7180 3. How to enter the password with the microphone keypad; If you press a key while “CLONE LOCK” is displayed, the number that was pressed is displayed on the transceiver. Each press of the key shifts the display in order to the left.
Page 7: Installation
2. Radio Interface Cable (KCT-40 : Option) The KCT-40 connection cable kit is used to connect the TK-7180 transceiver to the KDS-100 (Mobile data terminal), KGP-2A (Modem GPS receiver), KGP-2B (Modem GPS con- troller) or through the KCT-36 extension cable.
Page 8 The Horn alert (max. 2A drive), Public address and External speaker function are enabled by installing the KAP-2 in the TK-7180 transceiver. 3-1. Installing the KAP-2 unit in the transceiver 1. Remove the cabinet, top packing and shielding plate of the transceiver.
Page 9 Note : The terminal side of the flat cable must face down when inserting the flat cable into the connector. 7. Fit the four tabs of the rear panel into the front panel. ( !0 ) TK-7180 KRK-10 main panel Fig. 4-3...
Page 10 TK-7180 ■ Connect the KRK-10 main panel to the rear panel with the cable 8. Insert one 14-pin connector of the cable (E30-7514-05) into the connector (CN3) of the interface unit (A/2) of the main panel. ( !1 ) 9. Secure the cable bush on the main panel and fit the water- proof packing (orange) ( !2 ) securely over top.
Page 11 Note : You must setup using the KPG-89D. RXD1 (DATA OUT1)* RXD2 (DATA OUT1)* *1 : Depending on the connected optional accessory, the DATA OUT1 may connect to either RXD1 or RXD2. TK-7180 3M double coated cushion No. 4008 (or No.4408) 25 x 110 mm Fig. 7-2...
Page 12 TK-7180 3M Double coated cushion No. 4016 (or No. 4416) 30 x 25 mm GPS receiver 3M Double coated cushion No. 4016 (or No. 4416) 30 x 25 mm Fig. 8-2 Fig. 8-3 8-2. Installing the GPS receiver together with the VGS-1 1.
Page 13: Disassembly For Repair
( e ) 4. To remove the holder, insert a flat-head screwdriver into tab of the holder and tilt it in the direction shown by the arrow. ( r ) CN901 TK-7180 Fig. 2-1 Fig. 2-2...
Page 14 TK-7180 2. Precautions on Reassembly ■ TX-RX PCB (TX-RX unit B/3) Reassembly 1. With the TX-RX PCB turned over, insert the flat cable from the D-sub PCB (TX-RX unit A/3) into the connector (CN427) on the TX-RX PCB. 2. Place the TX-RX PCB at its original position, tilt the TX-RX PCB and install the chassis as shown in Figure 3.
Page 15 Note : Push in the hardware fixture until it snaps in place. 7. Insert the speaker connector into the display unit connec- tor (CN901). 8. Place the speaker lead on the holder hook. Fig. 7-2 TK-7180 Fig. 7-1 Spacer Speaker Speaker holder...
Page 16: Circuit Description
TK-7180 1. Outline The TK-7180 is a VHF/FM transceiver designed to operate in the frequency range of 136 to 174MHz. Transmission out- put power is 30 watts. The maximum channel capacity is 512. The unit consists of receiver, transmitter, phase-locked loop (PLL) frequency synthesizer, and control circuits.
Page 17 IC414 IC413 IC415 Multi- AQUA-L plexer TXIN Q417 D-SUB IC409 LSDO Q313 Drive Drive Drive Final D2~D4 Gate bias IC71 IC72 TK-7180 IC410 IC412 (for VCO) IC408 (for VCXO)
Page 18 TK-7180 4. Frequency Synthesizer Unit 4-1. Frequency Synthesizer The frequency synthesizer consists of the TCXO (X301), VCO, PLL IC (IC301) and buffer amplifiers. The TCXO generates 16.8MHz. The frequency stability is 2.5ppm within the temperature range of –30 to +60°C. The frequency tuning and modulation of the TCXO are done to apply a voltage to pin 1 of the TCXO.
Page 19 Q804 EEPROM Ext-I/O IC801 CPU #17 Q808 : RST1 RTC IC IC804 CN401 Q805 Q809 CPU #24 : INT Fig. 6 Power supply circuit TK-7180 Q910 IC903 driver IC901 Mask Q909 POWER BLCI back DIMM light IC902 Function FKEY [1~10]...
Page 20: Semiconductor Data
TK-7180 Microprocesser : 30625MGP-169GP (TX-RX unit IC404) Pin No. Port Name VREF AVCC Switched B control RX control TX control TX APC adjust HSDO High speed data output STSW Side tone switch RTCL/EEPCL RTC/EEPROM clock HSDIN High speed data input...
Page 21 Non-connection Function Pin No. 98~100 Shift Register : BU4094BCFV (TX-RX unit IC403) Pin No. TK-7180 Port Name I/O Function Front panel key (R down [ ]) Front panel key (R up [ ]) Front panel key (■ ) Front panel key (C)
Page 22: Components Description
TK-7180 Display unit (X54-3480-10) Ref. No. Part Name IC901 Voltage regulator/ 5V IC902 Microprocessor IC903 LCD driver Q901,902 Transistor HOOK switch Q904 Transistor TX indication LED switch Q905 Transistor BUSY indication LED switch Q906 Transistor Dimmer switch control Q907 Transistor...
Page 23 RF detector Variable RF BPF tuning capacitance diode D103~106 Variable RF BPF tuning capacitance diode D171,172 Diode W/N CF switch TK-7180 Ref. No. Part Name Description D173 Diode SQ noise amp detector D174 Diode DET mute switch control D251 Diode...
Page 24: Parts List
Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. TK-7180 (Y51-5020-10) DISPLAY UNIT (X54-3480-10) Ref. No. Address Parts No.
Page 25 C145 47PF C146 100PF C149 470PF C150 47UF 25WV C171 C172 100PF 470PF C173 18PF C174 TK-7180 DISPLAY UNIT (X54-3480-10) TX-RX UNIT (X57-6980-10) Parts No. Description parts C93-0573-05 CHIP C 120PF CM73F2H430J CHIP C 43PF CC73GCH1H0R5B CHIP C 0.5PF CC73GCH1H020B CHIP C 2.0PF...
Page 26 TK-7180 TX-RX UNIT (X57-6980-10) Ref. No. Address Parts No. parts C175 CC73GCH1H120J CHIP C C176-178 CK73GB1H102K CHIP C C181 CK73GB1H102K CHIP C C182,183 CK73GB1H103K CHIP C C184 CK73GB1H102K CHIP C C185 CK73GB1H103K CHIP C C186 CC73GCH1H330J CHIP C C187 CC73GCH1H390J...
Page 27 1.0UF C576 1000PF C577 12PF C578 0.10UF C579 1000PF C580 C581,582 0.10UF 4.7UF C583 180PF C584 TK-7180 TX-RX UNIT (X57-6980-10) Parts No. Description parts CK73GB1C104K CHIP C 0.10UF CK73GB1H102K CHIP C 1000PF CC73HCH1H101J CHIP C 100PF CK73GB1H821K CHIP C 820PF...
Page 28 TK-7180 TX-RX UNIT (X57-6980-10) Ref. No. Address Parts No. parts C585-587 CC73GCH1H101J CHIP C C588 CK73GB1H102K CHIP C C591 CK73GB1C104K CHIP C C592,593 CC73GCH1H070D CHIP C C594 CK73HB1H102K CHIP C C595 CC73GCH1H101J CHIP C C701 CK73GB1H102K CHIP C C702-704 CC73GCH1H101J...
Page 29 1/16W R303 2.2K 1/16W R304 1/16W 1/16W R305 100K 1/16W R306 R307 1/16W R308 1/16W R309 TK-7180 TX-RX UNIT (X57-6980-10) Parts No. Description parts RK73GB1J181J CHIP R 1/16W RK73GB1J104J CHIP R 100K 1/16W R92-1252-05 CHIP R 0 OHM J 1/16W...
Page 30 TK-7180 TX-RX UNIT (X57-6980-10) Ref. No. Address Parts No. parts R310 RK73GB1J331J CHIP R R311,312 RK73GB1J102J CHIP R R313 RK73GB1J472J CHIP R R314,315 RK73GB1J223J CHIP R R316 RK73GB1J474J CHIP R R317 R92-1252-05 CHIP R ✽ R318 R92-2157-05 METAL-R R319 RK73GB1J220J...
Page 31 1.0M 1/16W R801 0 OHM J 1/16W R802 R803 180K 1/16W 2.2K 1/16W R805 150K 1/16W R806,807 TK-7180 TX-RX UNIT (X57-6980-10) Parts No. Description parts RK73GB1J472J CHIP R 4.7K 1/16W R92-1252-05 CHIP R 0 OHM J 1/16W R92-1368-05 CHIP R...
Page 32 TK-7180 TX-RX UNIT (X57-6980-10) Ref. No. Address Parts No. parts R808,809 RK73GB1J473J CHIP R R811,812 RK73GB1J103J CHIP R R813 RK73GB1J472J CHIP R R814 RK73GB1J473J CHIP R R815 RK73GB1J683J CHIP R R816 RK73HB1J473J CHIP R R819 RK73GB1J563J CHIP R R820 RK73GB1J473J...
Page 33: Exploded View
D M2.6 x 8 (Br-Tap) : N87-2608-46 IC417 TX-RX unit (B/3) TX-RX unit (C/3) Parts with the exploded numbers larger than 700 are not supplied. EXPLODED VIEW TX-RX unit (A/3) 4 31 104 x2 TK-7180 Front Rear Right Side J901 Display unit...
Page 34: Packing
TK-7180 52 Microphone (T91-0639-05) 18 Fuse (Blade) 15A/32V (F52-0024-05) x 2 9 DC cord assy (Water-proof) (E30-7523-05) 44 Bracket (J29-0662-03) PACKING 707 Pamphlet x 2 39 Holder (J19-1584-05) 49 Screw set (N99-2039-05) 32 Inner packing case (H02-0624-03) Parts with the exploded numbers larger than 700 are not supplied.
Page 35: Adjustment
• Test frequency RX (MHz) 155.05000 136.05000 173.95000 155.00000 155.20000 155.40000 177.95000 8~16 TK-7180 “FNC” appears Function Display Low : icon appears On : icon appears On : icon appears On : icon appears LCD all point appears –...
Page 36 TK-7180 • Test signaling None None LTR Data : AREA=0, GOTO=12 HOME=12 ID=47, FREE=25 QT : 67.0Hz QT : 151.4Hz QT : 210.7Hz QT : 254.1Hz DQT : D023N DQT : D754I DTMF : 159D None 2-tone : A : 304.7Hz B : 3106.0Hz...
Page 37 Wide 4k Squelch Wide 5k Wide 4k Low RSSI Wide 5k Squelch tight Wide 5k Wide 4k High RSSI Wide 5k TK-7180 3 reference level 3 reference level adjustments adjustments 3 reference level adjustments 5 reference level adjustments Center 5 reference level...
Page 38 PC tuning is used. See “PC Mode” section fot the connection. MIC-E Check Jig for the VGS-1 KENWOOD part : W05-1127-00 5 : MICE 6 : MIC 7 : HOOK/RXD (PC serial data to radio)
Page 39 Test- Unit Terminal Unit Parts equipment f. counter Rear Front [ ],[ ] Center frequency panel panel Power meter TK-7180 Specifications/Remarks Method ± 0.1V Check 2.0V± 0.5V ± 0.1V Check 2.0V± 0.5V Specifications/Remarks Method Note : After replacing the ± 50Hz VCXO (X301) align frequency.
Page 40 TK-7180 Item Condition 5. Max low 1) Adj item : [MLPWR] power Adjust : [✳✳✳] 2) Adj item : [L MLPWR] → adjust [L’ MLPWR] → [C MLPWR]→ [H’ MLPWR] → [H MLPWR] Adjust : [✳✳✳] PTT : ON 6. High power...
Page 41 Deviation Front Modular meter panel MIC jack Oscilloscope AF VTVM Front [ ],[ ] 0.35kHz panel TK-7180 Specifications/Remarks Method ± 0.10kHz (According to the larger +, –) ± 0.10kHz 3.30kHz (According to the larger +, –) ± 0.10kHz 4.20kHz (According to the larger +, –)
Page 42 TK-7180 Item Condition 15. LTR 1) Adj item : [n LTR] deviation Adjust : [✳✳✳] adjust Deviation meter filter LPF : 3kHz HPF : OFF 2) Adj item : [nL LTR] → • Narrow [nC LTR] → [nH LTR] Adjust : [✳✳✳] PTT : ON •...
Page 43 Parts equipment Rear Front [ ],[ ] Enter the following panel panel AF VTVM EXT. SP TK-7180 Specifications/Remarks Method Note : After replacing the adjustment values EEPROM (IC401) aline to the transceiver sensitivity. by pressing [ ] and [ ] keys.
Page 44 TK-7180 Item Condition 4. Low RSSI 1) Adj item : [n LRSSI] adjust Adjust : [✳✳✳] • Narrow SSG output : 12dB SINAD level AF VTVM (MOD : 1kHz/± 1.5kHz) 2) Adj item : [nL LRSSI] → [nC LRSSI] → [nH LRSSI] Adjust : [✳✳✳]...
Page 45 Terminal Unit Parts equipment Rear panel AF VTVM EXT. SP Oscilloscope TK-7180 Adjustment Specifications/Remarks Method After input signal The following erroneous from SSG, press [B] performance may occur if any key. That numeric irregular RSSI adjustment, will be stored in such as pressing the [B] key memory.
Page 46: Terminal Function
TK-7180 Display unit (X54-3480-10) Pin No. Name Description CN901 (to internal speaker) Ground. Speaker output. CN902 (to TX-RX unit B/3 CN429) Speaker input. Speaker input. Speaker input. Speaker input. Speaker input. Speaker input. Ground. 8V input. Power input of switched power supply.
Page 47: Tx-Rx Unit (X57-6980-10) (B/3)
TXD1 OPT4 USEL OPT5 DGND AGND AGND STON TK-7180 Description CN301 (to TX-RX unit C/3) Reference signal otput to the PLL IC. Complementary signal output to the PLL IC. Ground. 5V output. Ground Signal input from charge pump block in the PLL IC.
Page 48 TK-7180 Pin No. Name Description Data signal input. Zin≥22kΩ, 600± 200mVp-p TCTL Speaker mute signal input. Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V Non-connection. AUDIH MIC mute signal input. OPT2 Option boad I/F 2. Output : L≤0.45V, H≥4.7V/25kΩ load Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V...
Page 49 RXD2* (DATA OUT1) 5E (+5V) *1 : Depending on the connected optional accessory, the DATA OUT1 may connect to either RXD1 or RXD2. TK-7180 Description to Scrambler board Ground. PTT signal output. L : TX, H : Not TX L≤0.45V, H≥4.7V/25kΩ load (PTT signal input) Actiive low.
Page 50 TK-7180 PC BOARD DISPLAY UNIT (X54-3480-10) Component side view (J72-0932-09) D907 J901 DISPLAY UNIT (X54-3480-10) Foil side view (J72-0932-09) C915 D904 R904 SB 2 C912 C909 R903 R901 C904 D906 D901 Q904 Q905 R917 R918 LEFT UP D927 LEFT DOWN...
Page 51 DISPLAY UNIT (X54-3480-10) Foil side view (J72-0932-09) L905 L906 L907 C931 R956 R957 R955 R958 IC903 25 26 PC BOARD C > TK-7180 Ref. No. Address Ref. No. Address RIGHT UP D907 D920 D909 D921 D910 D922 D929 D911 D923...
Page 52 TK-7180 PC BOARD DISPLAY UNIT (X54-3480-10) Component side view (J72-0932-09) LEFT UP D927 D907 LEFT DOWN D928 J901 DISPLAY UNIT (X54-3480-10) Foil side view (J72-0932-09) Q911 C915 D904 C918 R963 R904 SB 2 R962 R910 C912 IC901 R909 C909 Q901...
Page 53 TK-7180 PC BOARD TX-RX UNIT (X57-6980-10) (A/3) Component side view (J72-0930-19 A/3) J72-0930-19 A/3 Ref. No. Address D709 D710 D714 TX-RX UNIT (X57-6980-10) (C/3) Component side view (J72-0930-19 C/3) CN701 R325 C336 CPGND R323 C335 R301 R332 C332 IC301 R330...
Page 54 C703 J72-0930-19 A/3 Ref. No. Address D704 D711 D705 D712 D706 D713 D707 D708 R300 C299 + IC302 R331 J72-0930-19 C/3 TK-7180 I/O3 I/O2 I/O1 RXD2 I/O7 I/O6 D706 D712 D711 R703 R712 R711 D704 Component side Layer 1 Layer 2...
Page 55 TK-7180 PC BOARD J401 EXT. SP CN428 C576 IC417 R655 R622 R621 R629 R625 R630 R624 R633 R636 D413 CLKC CHAE CN401 BATT R809 C813 IC801 C818 C542 CN429 J72-0930-19 B/3 TX-RX UNIT (X57-6980-10) (B/3) Component side view (J72-0930-19 B/3)
Page 56 L112 C236 C234 R198 C139 CF171 D106 NARROW R200 C140 C141 R207 C228 C226 C223 L113 R199 R126 TK-7180 Ref. No. Address Ref. No. Address Q421 IC71 Q803 IC72 Q804 IC172 Q806 IC407 Q808 IC410 Q811 IC414 Q812 IC416 IC417...
Page 57 TK-7180 PC BOARD TX-RX UNIT (X57-6980-10) (B/3) Component side view (J72-0930-19 B/3) CN804 J401 EXT. SP R807 R812 Q808 CN428 C580 C579 C576 IC417 R652 C573 C574 C572 R642 R648 D416 R651 C560 C570 C561 Q418 R655 R632 R641 Q419...
Page 58 TK-7180 PC BOARD L105 R131 C109 C113 CN201 CN200 C209 C210 C217 C216 L186 R193 L189 C208 C218 C219 C204 R185 R210 C238 L184 C230 C201 C232 C259 CN202 CN203 L178 C188 L180 C190 R178 C187 TX-RX UNIT (X57-6980-10) (B/3)
Page 59 CP413 R470 CP412 IC404 R469 CP411 CP410 CP408 CP409 R482 CP407 R467 PSENS C478 C487 C481 C490 TK-7180 PC BOARD Ref. No. Address Ref. No. Address IC171 Q414 IC251 Q415 IC401 Q801 IC402 Q802 IC803 IC403 Q805 IC404 Q807 IC405...
Page 60 TK-7180 PC BOARD R117 C120 L108 C145 C119 R119 Q103 L105 C115 R109 L106 R131 C109 C113 R120 CN201 CN200 C209 C210 C217 C216 L186 R193 R190 L189 C213 C208 C218 R196 C240 C219 R192 R195 D171 C204 R185 R210...
Page 61: Schematic Diagram
TK-7180 SCHEMATIC DIAGRAM DISPLAY UNIT (X54-3480-10) FKEY[1] FKEY[5] FKEY[2] FKEY[6] FKEY[3] FKEY[7] FKEY[4] FKEY[8] FKEY[10] 4.97V POWER VOLTAGE REGULATOR/5V 7.84V VOLTAGE PROTECTION C910 C914 4.61V 100p 100p C911 5.02V J901 100p 13.3V 5.03V T:0.01V R:5.02V VOLTAGE PROTECTION T:4.80V R:0.01V X54-348 1/2...
Page 62 CoM4 COM[3] CoM3 LCD DRIVER COM[2] CoM2 IC903 COM[1] CoM1 LC75810T-8726 VLCD VLCD0 VLCD1 VLCD2 VLCD3 • ) are parts of layer 1. TK-7180 S[50] S[49] S[48] S[47] S[46] S[45] S[44] S[43] S[42] S[41] S[40] S[39] S[38] S[37] S[36] S[35]...
Page 63 DISPLAY UNIT (X54-3480-10) FKEY[1] FKEY[5] FKEY[2] FKEY[6] CP909 100*2 FKEY[3] FKEY[7] FKEY[9] CP908 100*2 FKEY[4] FKEY[8] FKEY[10] CP907 100*2 CP906 100*2 FKEY[10] CP905 4.97V POWER FKEY[9] 100*2 FKEY[8] CP904 FKEY[7] 100*2 FKEY[6] CP903 FKEY[5] 100*2 FKEY[4] CP902 FKEY[3] 100*2 FKEY[2] CP901 FKEY[1] 100*2...
Page 64 TK-7180 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6980-10) (B/3) D801 L411 VOLTAGE PROTECTION CN802 L410 CN803 D802 DC REVERSE CONNECTION PROTECT T:7.46V VOLTAGE R:7.91V DETECTOR(INT) CN804 R821 IC801 S-80942CNNBG9C CN429 4.99V VOLTAGE DETECTOR (CPU RESET) Q811 DTC114EE CPU RESET SW C478 100p...
Page 65 XOUT MICROPROCESSOR DGND IC404 30625MGP-169GP VCC1 INTRA SHIFT/MODEL BEEP SPSTB AIO5 AIO9 DSTB LSDO RXD2 TXD2 TXD1 VCC1 RXD1 BEEP TK-7180 EMTON R467 TCLK/DTRDO TCLK/DTRDO CP407 AFRTM AFRTM R482 CP408 CP409 CP410 CP411 C423 DGND R469 VCC2 OPT6 R465 R470...
Page 66 TK-7180 SCHEMATIC DIAGRAM DSTB FLASH MEMORY IC405 AT29C040A-90TI C441 D405 4.99V EMZ6.8N VOLTAGE PROTECTION R496 100k 2.49V R522 270k R526 100k C462 0.01u IC411 LMC7101BIM5 OUTPUT 10CL INPUT+ INPUT- RF BPF TUNING VOLTAGE DC AMP HSD BPF/HSD COMPALATOR IC406 TC75W51FU –...
Page 67 C495 C503 R559 100k 180p AGNDIN C488 TXIN 2.81V 12p(G) TXINO LIMLV C476 IC415 EXTLIMIN AQUA-L 0.1u DTRLOADN TK-7180 D419 1SS388 MIC MUTE CONTROL R618 220k C544 10u10 Q417 Q416,417 2SJ243 MIC MUTE SW 4.83V 4.98V Q416 2SJ243 C543 10u10 4.88V...
Page 68 TK-7180 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6980-10)(C/3) CN301 CPGND CPGND 4.99V C397 1000p C396 1000p C307 4.99V Q314 DTA144EE 4.99V X301 L77-1952-05 R362 Q305 DTC144EE L301 R303 oUTPUT 5.6u 16.8MHz R:4.82V T:0V C113 C109 C102 C111 L105 R131 1000p R132 100k...
Page 69 R258 SHDN DC-DC CONVERTER 4.97V L174 L175 R176 4.35V L176 XF171 L39-1421-05 L177 R178 C187 C190 C185 L71-0618-05 270n 0.01u TK-7180 Q312 4.98V 2SC4617(S) 4.28V L320 C379 C381 1000p VCO BUFFER 3.90V Q313 2SC5108(Y) 1.43V C372 C375 1000p 0.74V R:0V T:2.40V...
Page 70 TK-7180 SCHEMATIC DIAGRAM TX DRIVER 1.10V 470p 2SC5192 1000p 470p 0.84V 2SC5108(Y) TX PRE-DRIVER 1.14V 7.55V 7.81V 4.96V R187 3.3k C205 R186 4.37V 0.01u IF AMP Q172 0.84V 2SC5108(Y) L187 C209 R217 C211 100n 0.01u 0.07V W/N CF SW CONTROL...
Page 71 F53-0352-05 R633 R636 AIO9 R629 R630 ADM202EARN RXD2 RXD1EXT TXD1 TXD2 D412 D413 D414 DA204U DA204U DA204U D412-414 SURGE PROTECT TK-7180 IC417 TA7252AP 6.76V 13.61V CN428 C583 R654 470p EXT.SP J401 CN427 AUXIO6 AUXIO7 AUXIO1 AUXIO2 RXD2 AUXIO3 TXD2 AUXIO4...
Page 72 TK-7180 SCHEMATIC DIAGRAM RX-IF (E23-1081-05) (E23-1081-05) CN328 CN329 CN330 CN200 TX-RX UNIT (X57-6980-10)(A/3) CN701 AUXIO6 AUXIO7 AUXIO1 AUXIO2 RXD2 AUXIO3 TXD2 AUXIO4 AUXIO8 AUXIO5 AUXIO9 AUXO1 TXD1 AUXO2 RXD1 VOLTAGE PROTECTION VOLTAGE PROTECTION X57-698 9/9 Note : The components marked with a dot (...
Page 73 TX-RX UNIT (X57-6980-10) (B/3) D801 L411 VOLTAGE CN802 PROTECTION L410 C822 470p T:12.7V D402 R:13.5V 1SS388 HSDIN F801 Q810 2SJ645 HSDO CN803 D402-404 DSTB DSTB DSTB F53-0278-05 SB SW CONTROL RTC BATTERY LSDIN D802 T:7.60V DC REVERSE VOLTAGE PROTECTION SB CONTROL SW Q802 R:8.09V PROTECT...
Page 74: Interconnection Diagram
TK-7180 INTERCONNECTION DIAGRAM...
Page 75: Block Diagram
TK-7180 BLOCK DIAGRAM 13.6V D802 2SC2873(Y),02CZ9.1(X,Y) DSA3A1 PROTECT D801 22ZR-10D PROTECT D804,Q802 02DZ18(X,Y) DTC114EE PROTECT IC802 XC61CN5002NR Voltage DETECTOR SENS DISPLAY UNIT (X54-348) Q901,Q902 HOOK Protect DTC144EE Surge Protect D904,D905,D906 DA204U SEG*75 DRIVER IC903 LC75810T COM*9 -8726 5V, 8C VLCD...
Page 76 APC, HSDO, LSDO, BEEP MM1, MM2 H/L, STSW AUX I/O1~ AUX I/O9 AUXO1 Shift Register IC403 SCSW BU4094BCFV CFSW AUXO2 TK-7180 D3,D4 XB15A407A2GB*2 RA30H1317M D2: XB15A709 GATE DTC114EE IC72 PO DET HSM88AS HSM88AS IC71 TA75W01FU(2/2) GAIN PO REF 2SK1824 IC72...
Page 77: Level Diagram
TK-7180 Receiver Section Radio Frequency –120.0dBm –122.0dBm Q103 Transmitter Section W : 5.0mVrms W : 5.0mVrms N : 6.3mVrms N : 6.3mVrms IC414 MIC input : 3kHz DEV. (Wide), 1.5kHz DEV. (Narrow) at 1kHz MOD. Transmitting frequency : Center frequency LEVEL DIAGRAM –109.0dBm...
Page 78 1kHz, DEV. WIDE 3kHz (NARROW 1.5kHz). 173mVrms 86mVrms –1dBm –1.5dBm Q307 Q313 Wattmeter by 50Ω LEVEL DIAGRAM Audio Frequency 315mVrms 200mVrms IC412 IC413 IC415 Power module +7dBm +16dBm TK-7180 190mVrms 88mVrms 4.00Vrms IC410 IC417 J401 TX-RX unit (B/3)
Page 79: External View
TK-7180 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ External View ■ Components Description Ref. No. Part Name IC1,2 Buffer amp Varistor Current limiter D3~6 Diode Surge protect D9~11 Diode Surge protect D12~20 Varistor Surge protect ■ Parts List Ref.
Page 80 4 Trunk cable (E30-7514-05) 7 Molding cover (F07-1884-03) Interface unit (X46-3310-20) (B/2) B Pan head taptite screw (N80-2608-48) x 4 TK-7180 B Pan head taptite screw (N80-2608-48) x 4 Interface unit (X46-3310-20) (A/2) 7 Molding cover (F07-1884-03) 4 Trunk cable...
Page 81 TK-7180 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ PC Board INTERFACE UNIT (X46-3310-20) Component side view (J72-0934-09) RST2 TXD RXD SHIFT PSENS J72-0934-09 B/2 J72-0934-09 A/2 PSENS TXD RXD RST2 SHIFT INTERFACE UNIT (X46-3310-20) Foil side view (J72-0934-09)
Page 82 INTERFACE UNIT (X46-3310-20) (B/2) PSENS SHIFT RST2 E40-6377-05 : TC7WT125FU D9~11 : DA204U : AVRM1608080MAA Radio Side C14 1000p Display Side C41 1000p TK-7180 PSENS SHIFT RST2 E40-6377-05 : TC7WT125FU : MINISMDM075/24 D3~6 : DA204U D12~19 : AVRM1608080MAA PSENS RST2...
Page 83 TK-7180 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ Terminal Function Pin No. Name Description CN1 (Radio side) Speaker input. Speaker input. Speaker input. Speaker input. Speaker input. Speaker input. Ground. 8V input. Power input of switched power supply.
Page 84: Kap-2 (Horn Alert/P.a. Relay Unit)
OPTIONAL ACCESSORIES KAP-2 (Horn Alert/P.A. Relay Unit) ■ External View KCT-40 (Radio Interface Cable) ■ External View KCT-46 (Ignition Sense Cable) ■ External View TK-7180 KMC-35 (Microphone) ■ External View KMC-36 (Keypad Microphone) ■ External View...
Page 85: Specifications
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium KENWOOD ELECTRONICS FRANCE S.A. 13, Boulevard Ney, 75018 Paris, France KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands KENWOOD ELECTRONICS ITALIA S.p.A.

Kenwood TK-7180 Service Manual

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