Unpack the radio from its shipping container and check for KAP-2 (Horn Alert/P.A. Relay unit) ....85 accessory items. If any item is missing, please contact KCT-40 (Radio Interface Cable) ......85 KENWOOD immediately. KCT-46 (Ignition Sense Cable) ......85 2. PRE-INSTALLATION CHECKOUT KMC-35 (Microphone) ........85 2-1.
4-1. 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. 4-2. Radio location Select a convenient location for your control station radio which is as close as practical to the antenna cable entry point.
TK-8180/8189 SYSTEM SET-UP Frequency range RF power Type 12-key Merchandise received 400~470MHz TK-8180 E 400~470MHz TK-8189 E Choose the type of transceiver Are you using See page 10. KRK-10 the remote kit? (Option) Are you using See page 8. KCT-46 the ignition sense cable? (Option) See page 5.
TK-8180/8189 REALIGNMENT 1. Modes 2. How to Enter Each Mode Mode Operation User mode User mode Power ON Panel test mode [A] + Power ON Panel test mode Panel tuning mode PC mode Received commands from PC Panel tuning mode [Panel test mode] + [S] PC mode Data programming mode...
Page 6
TK-8180/8189 REALIGNMENT 5-2. Connection procedure 5. Check the connection between the transceiver and the personal computer, and make sure that the transceiver is 1. Connect the transceiver to the personal computer with in the Program mode. the interface cable. 6. Press write button in the window. When the transceiver 2.
Page 7
TK-8180/8189 REALIGNMENT 8. Firmware Version Information • How to enter the password with the DTMF keypad (TK- Turn the transceiver ON with the [ ] key held down. 8189 model only); Then, the version is displayed during holding the [ ] key.
TK-8180/8189 INSTALLATION 1. Ignition Sense Cable (KCT-46 : Option) The KCT-46 is an optional cable for enabling the ignition function. The ignition function lets you turn the power to the transceiver on and off with the car ignition key. 1-1. Connecting the KCT-46 cable to the transceiver 1.
Page 9
TK-8180/8189 INSTALLATION 3. Horn Alert/P.A. Relay Unit (KAP-2 : Option) The Horn alert (max. 2A drive), Public address and External 5. Place the relay unit at the position shown in Figure 3-2 and speaker function are enabled by installing the KAP-2 in the secure it to the chassis with a screw.
Page 10
TK-8180/8189 INSTALLATION ■ Install the KRK-10 main panel onto the transceiver 4. Control Head Remote Kit (KRK-10 : Option) 4. Insert the flat cable that was removed in step 2 above into The KRK-10 remote kit is used to remotely operate the TK- the connector (CN1) of the interface unit (A/2) of the KRK- 8180/8189 transceiver.
Page 11
TK-8180/8189 INSTALLATION ■ Connect the KRK-10 main panel to the rear panel with the cable 10. Install the molded cover ( !3 ) over the connector on the 8. Insert one 14-pin connector of the cable (E30-7514-05) main panel and secure it with two screws ( !4 ). into the connector (CN3) of the interface unit (A/2) of the main panel.
Page 12
TK-8180/8189 INSTALLATION ■ Connection Procedure 6. External Speaker (Option) Insert the crimp terminal into the Square plug supplied 6-1. KES-3 with the KAP-2. The KES-3 is an external speaker for the 3.5-mm-diameter speaker jack. ■ Connection Procedure 1. Connect the KES-3 to the 3.5-mm-diameter speaker jack on the rear of the transceiver.
Page 13
TK-8180/8189 INSTALLATION 7. Voice Scrambler Board Connection 8. ANI Board Connection 1. Remove the front panel from the transceiver. 1. Remove the front panel from the transceiver. 2. Solder each lead of the scrambler board to a necessary 2. Solder each lead of the scrambler board to a necessary location of each landing on the component side of the TX- location of each landing on the component side of the TX- RX unit (B/3).
Page 14
TK-8180/8189 INSTALLATION 3M Double coated cushion 9. GPS Receiver Connection No. 4016 (or No. 4416) 9-1. Installing the GPS receiver 30 x 25 mm 1. Remove the cabinet, top packing and shielding plate of the transceiver. 2. Remove the front panel from the transceiver. GPS receiver 3.
Page 15
TK-8180/8189 INSTALLATION / DISASSEMBLY FOR REPAIR 4. Insert the VGS-1 connector (CN1) into the TX-RX unit (B/3) 1. Precautions on Disassembly connector (CN403). ■ TX-RX PCB (TX-RX unit B/3) Disassembly 5. Perform step 3 to 6 of “9-1. Installing the GPS receiver” 1.
TK-8180/8189 DISASSEMBLY FOR REPAIR ■ TK-8180 Transceiver ■ TK-8189 Transceiver Removing the speaker hardware fixture Removing the holder (J19-5469-02) (J21-8481-03) and holder (J19-5485-02) 1. Remove the flat cable from the display unit connector (CN903). ( q ) 1. Remove the speaker lead from the holder hook. ( q ) 2.
Page 17
TK-8180/8189 DISASSEMBLY FOR REPAIR ■ FINAL shield case (F10-3032-04) installation ■ Top packing installation procedure procedure 1. Place the top packing over the shielding plate. 2. Fit the convex tab of the top packing into the hollow of the 1. Place the shield case on the final section of the TX-RX unit chassis.
Page 18
TK-8180/8189 DISASSEMBLY FOR REPAIR ■ TK-8180 Transceiver ■ TK-8189 Transceiver Installing the holder (J19-5485-02) and speaker Installing the holder (J19-5469-02) hardware fixture (J21-8481-03) 1. Insert three tabs of the holder (J19-5469-02) into the hol- lows in the top of the panel. ( q ) 1.
TK-8180/8189 CIRCUIT DESCRIPTION 2-2. First Mixer 1. Outline The signal from the BPF is heterodyned with the first local The TK-8180/8189 is a UHF/FM transceiver designed to oscillator signal from the PLL frequency synthesizer circuit at operate in the frequency range of 400 to 470MHz. Transmis- the first mixer DBM (IC171) to become a 44.85MHz first in- sion output power is 25 watts.
Page 20
TK-8180/8189 CIRCUIT DESCRIPTION 2-5. Squelch Circuit 3-2. Modulation Level Adjustment Circuit The output signal from IC172 enters FM IC again, then The audio signal amplified by the audio frequency ampli- passed through a band-pass filter. fier (IC412) is added to the low speed data LSD passed The noise component output from IC172 is amplified by through the low pass filter (IC409).
Page 21
TK-8180/8189 CIRCUIT DESCRIPTION 4. Frequency Synthesizer Unit 5. Control Circuit 4-1. Frequency Synthesizer The block diagram of the control circuit is shown in Figure The frequency synthesizer consists of the TCXO (X301), The CPU (IC404) is a 16-bit microcomputer that contains a VCO, PLL IC (IC301) and buffer amplifiers.
Page 22
TK-8180/8189 CIRCUIT DESCRIPTION 6. Power Supply Circuit The block diagram of the power supply Power supply : 10.8~15.6V Final amp. circuit is shown in Figure 6. F801 Power is always supplied from +B to Q810 Audio amp, PA connector Panel block, D-sub block the circuit (5M, +B) that is always started IC803 Internal option...
TK-8180/8189 SEMICONDUCTOR DATA Microprocesser : 30625MGP169GU (TX-RX unit IC404) Pin No. Port Name Function Pin No. Port Name Function VREF BB LIM switch AVCC Switched B control No connection RX control HOLD TX control No connection TX APC adjust 54~57 AIO4~AIO1 AUX I/O 4~1 HSDO...
Page 24
TK-8180/8189 SEMICONDUCTOR DATA Microprocesser : 30302M88Z7GU (Display unit IC902) Pin No. Port Name I/O Function Pin No. Port Name I/O Function No connection (TK-8180), 5 (TK-8189) No connection No connection (TK-8180), 4 (TK-8189) SHIFT Beat shift BYTE No connection (TK-8180), 3 (TK-8189) CNVSS No connection (TK-8180), 2 (TK-8189) No connection...
TK-8180/8189 COMPONENTS DESCRIPTION Switch unit (X41-3682-70) Ref. No. Part Name Description : TK-8189 model only IC302 PLL CP switch Ref. No. Part Name Description IC401 EEPROM Transistor Voltage regulator/ 8.4V IC402 RTC processor BLC switch IC403 Shift register BLC switch control IC404 Microprocessor D1~6...
Page 26
TK-8180/8189 COMPONENTS DESCRIPTION Ref. No. Part Name Description Ref. No. Part Name Description Q308~310 Transistor TX/RX VCO switch D111 Diode ANT switch Q311 Transistor VCO buffer amp D171,172 Diode W/N CF switch Q312 Transistor Ripple filter D173 Diode SQ noise-amp detector Q313 Transistor VCO buffer amp...
TK-8180/8189 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. Y : AAFES (Europe) X : Australia M : Other Areas...
Page 28
TK-8180/8189 PARTS LIST DISPLAY UNIT (X54-348X-XX) TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation 3B,3D J19-5467-03 HOLDER TX-RX UNIT (X57-6992-71) 3B,3C J21-8470-03 MOUNTING HARDWARE (LCD) J31-0551-05 COLLAR CK73GB1H102K CHIP C 1000PF...
Page 29
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C127 CC73GCH1H270J CHIP C 27PF C219 CK73FB1C105K CHIP C 1.0UF C128 CC73GCH1H070B CHIP C 7.0PF C220,221 CK73GB1C104K CHIP C 0.10UF...
Page 30
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C367 CK73GB1H102K CHIP C 1000PF C453 CK73GB1C104K CHIP C 0.10UF C368 CC73GCH1H471J CHIP C 470PF C454 CK73GB1H103K CHIP C 0.010UF...
Page 31
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C542 CK73GB1H102K CHIP C 1000PF C819,820 CK73GB1C104K CHIP C 0.10UF C543,544 C92-0628-05 CHIP-TAN 10UF 10WV C821 C92-0585-05 CHIP-TAN 4.7UF...
Page 32
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation L177 L41-2785-14 SMALL FIXED INDUCTOR (270NH) RK73GB1J471J CHIP R 1/16W L178,179 L41-3988-14 SMALL FIXED INDUCTOR (390NH) RK73GB1J102J CHIP R 1.0K...
Page 33
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R202 RK73GB1J472J CHIP R 4.7K 1/16W R354 RK73GB1J121J CHIP R 1/16W R203 RK73GB1J332J CHIP R 3.3K 1/16W R355 RK73GB1J101J...
Page 34
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R470 RK73GB1J102J CHIP R 1.0K 1/16W R548 RK73GB1J823J CHIP R 1/16W R471,472 RK73HB1J102J CHIP R 1.0K 1/16W R549 RK73GB1J473J...
Page 35
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R623,624 RK73GB1J473J CHIP R 1/16W D315,316 HVC131 DIODE R625 RK73GB1J472J CHIP R 4.7K 1/16W D402-404 1SS388 DIODE R629,630 R92-0670-05...
Page 36
TK-8180/8189 PARTS LIST TX-RX UNIT (X57-6992-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation Q178 DTA144EE DIGITAL TRANSISTOR Q179 DTC144EE DIGITAL TRANSISTOR Q251 2SC4617(S) TRANSISTOR Q301 2SC5108(Y) TRANSISTOR Q302,303 2SC4116(BL) TRANSISTOR Q306,307 2SK508NV(K52)
TK-8180/8189 EXPLODED VIEW (TK-8180) IC417 TX-RX unit (B/3) TX-RX unit (C/3) TX-RX unit (A/3) Front Rear Right Side 5 37 J901 Display unit : N09-2409-05 M3 x 8 : N67-3008-48 M2.6 x 6 (Br-Tap) : N87-2606-48 D M2.6 x 8 (Br-Tap) : N87-2608-43 Parts with the exploded numbers larger than 700 are not supplied.
Page 38
TK-8180/8189 EXPLODED VIEW (TK-8189) IC417 TX-RX unit (B/3) TX-RX unit (C/3) TX-RX unit (A/3) Front Rear Right Side 5 37 J901 Switch unit Display unit : N09-2409-05 M3 x 8 : N67-3008-48 M2.6 x 6 (Br-Tap) : N87-2606-48 D M2.6 x 8 (Br-Tap) : N87-2608-43 Parts with the exploded numbers larger than 700 are not supplied.
TK-8180/8189 ADJUSTMENT Controls “FNC” appears Function Display Power Volume Channel switch Up/Down key Up/Down key High power / Low power Low : icon appears Function off Compander on/off On : icon appears Beat shift on/off On : icon appears [ ]/[ ] Function off [ ]/[ ] Function off...
Page 41
TK-8180/8189 ADJUSTMENT • LCD display in panel tuning mode • Test signaling B A L 2 5 6 None None n : Narrow Adjustment value (1~256) None 100Hz Square Wave Adjustment item s : Wide 4k w : Wide 5k LTR Data : LTR Data : AREA=0, GOTO=12...
Page 42
TK-8180/8189 ADJUSTMENT ■ Flow chart Note : The “LTR” cannot be used, please skip this item. Frequency 3 reference level 3 reference level Shift 1 adjustments adjustments 3 reference level Shift 2 adjustments 5 reference level Max high power adjustments Center 5 reference level Max low power...
Page 43
GRAY YELLOW Lead wire + Shield wire – MIC connector (Front panel view) Check Jig for the VGS-1 KENWOOD part No. : W05-1127-00 1 : BLC 5 : MICE to transceiver 2 : +B 6 : MIC 3 : GND...
Page 44
TK-8180/8189 ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) Power supply voltage DC power supply terminal : 13.2V 2) SSG standard modulation [Wide 5k] MOD : 1kHz, DEV : 3kHz [Wide 4k] MOD : 1kHz, DEV : 2.4kHz [Narrow] MOD : 1kHz, DEV : 1.5kHz ±...
Page 45
TK-8180/8189 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment ± 1W 5. Max low 1) Adj item : [MLPWR] Power meter Rear Front [ ],[ ] 15W power Adjust : [✳✳✳] panel panel 2) Adj item : [L MLPWR] → adjust [L’...
Page 46
TK-8180/8189 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment ± 0.10kHz 11. Max DEV 1) Adj item : [n DEV] Power meter Rear Front [ ],[ ] 2.10kHz adjust Adjust : [✳✳✳] panel panel (According to the AG : 1kHz/50mV at MIC terminal larger +, –) Deviation meter filter...
Page 47
TK-8180/8189 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment ± 0.10kHz 15. LTR 1) Adj item : [n LTR] Power meter Rear Front [ ],[ ] 0.75kHz deviation Adjust : [✳✳✳] panel panel adjust Deviation meter filter LPF : 3kHz Deviation Front...
Page 48
TK-8180/8189 ADJUSTMENT Receiver Section Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1. Sensitivity 1) Adj item : [SENS1] Rear Front [ ],[ ] Enter the following Note : After replacing the adjust Adjust : [✳✳✳] panel panel adjustment values...
Page 49
TK-8180/8189 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 4. Low RSSI 1) Adj item : [n LRSSI] Rear After input signal The following erroneous adjust Adjust : [✳✳✳] panel from SSG, press [B] performance may occur if any •...
Page 50
TK-8180/8189 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 6. High RSSI 1) Adj item : [n HRSSI] Rear After input signal The following erroneous adjust Adjust : [✳✳✳] panel from SSG, press [B] performance may occur if any •...
TK-8180/8189 TERMINAL FUNCTION Switch unit (X41-3682-70) : TK-8189 model only Pin No. Name Description Pin No. Name Description Ground CN1 (to Display unit CN903) No connection Ground SHIFT/MODEL Control signal input of beat-shift function Power output of switched power supply No connection Backlight control input 5V output...
Page 52
TK-8180/8189 TERMINAL FUNCTION Pin No. Name Description Pin No. Name Description AUXIO4 AUX input/output 4 Power output after power switch. AUXIO8 AUX input/output 8 DC13.2V± 15%, 2.0A max. AUXIO5 AUX input/output 5 AUXO2 AUX output 2. Open collector (500mA max.) AUXIO9 AUX input/output 9 (Default none) L≤0.3V...
Page 53
TK-8180/8189 TERMINAL FUNCTION Pin No. Name Description Pin No. Name Description TXD1 Serial data output / PTT output (Scrambler board) RX filtered audio output Output : L≤0.45V, H≥4.7V/25kΩ load Data signal input Serial clock output OPT4 VGS enable output. Option boad I/F 4. Ground Output : L≤0.45V, H≥4.7V/25kΩ...
Page 54
TK-8180/8189 TERMINAL FUNCTION Pin No. Name Description Name Description MIC ground STON Side tone input. 1kHz, 5Vp-p MIC signal input (SIDE TONE) Ground to Scrambler board Ground GND (GND) Ground Detection signal input of power switch TXD1 PTT signal output. L : TX, H : Not TX No connection (PTT) L≤0.45V, H≥4.7V/25kΩ...
TK-8180/8189 PC BOARD SWITCH UNIT (X41-3682-70) : TK-8189 model only Component side view (J79-0002-09) Ref. No. Address Component side Layer 1 Layer 2 Foil side J79-0002-09 SWITCH UNIT (X41-3682-70) : TK-8189 model only Foil side view (J79-0002-09) Ref. No. Address BLC1 12KEY(12) 12KEY(11)
TK-8180/8189 PC BOARD DISPLAY UNIT (X54-348X-XX) 0-10 : TK-8180 2-71 : TK-8189 Component side view (J72-0932-19) LEFT UP D927 CP904 D907 CP907 CP902 CP906 CP905 LEFT DOWN D928 J901 DISPLAY UNIT (X54-348X-XX) 0-10 : TK-8180 2-71 : TK-8189 Foil side view (J72-0932-19) Q909 Q911 Q907...
Page 57
TK-8180/8189 PC BOARD DISPLAY UNIT (X54-348X-XX) 0-10 : TK-8180 2-71 : TK-8189 Component side view (J72-0932-19) Ref. No. Address Ref. No. Address RIGHT UP D907 D920 D909 D921 D910 D922 D929 D911 D923 D912 D924 D913 D925 D914 D926 D915 D927 D916 D928...
Page 58
TK-8180/8189 TK-8180/8189 PC BOARD PC BOARD DISPLAY UNIT (X54-348X-XX) 0-10 : TK-8180 2-71 : TK-8189 DISPLAY UNIT (X54-348X-XX) 0-10 : TK-8180 2-71 : TK-8189 Component side view (J72-0932-19) Component side view (J72-0932-19) Ref. No. Address Ref. No. Address LEFT UP RIGHT UP D907 D920...
Page 59
TK-8180/8189 PC BOARD TX-RX UNIT (X57-6992-71) (A/3) Component side view (J72-0931-29 A/3) D714 J72-0931-29 A/3 CN701 Component side Ref. No. Address D709 Layer 1 Layer 2 D710 Layer 3 D714 Layer 4 Foil side TX-RX UNIT (X57-6992-71) (C/3) Component side view (J72-0931-29 C/3) Ref.
TK-8180/8189 LEVEL DIAGRAM Receiver Section Radio Frequency 44.85MHz –105.5dBm –119.5dBm –122.0dBm –112.0dBm –117.0dBm –118.5dBm –109.5dBm –108.0dBm L173 L176 IC171 XF171 XF171 Q171 Q172 Q103 (1/2) (2/2) SG input level for 12dB SINAD are connecting SG to each point via a Transmitter Section TX-RX unit (B/3) W : 5.0mVrms...
Page 84
TK-8180/8189 LEVEL DIAGRAM 455kHz Audio Frequency W : –83.5dBm W : –86.0dBm N : –83.0dBm N : –86.0dBm CF171/ CF172 05.5dBm 315mVrms 190mVrms 88mVrms 4.00Vrms 0dBm 200mVrms IC172 IC412 IC413 IC415 IC410 IC417 J401 SINAD are obtained Measured by oint via a 0.01µF capacitor. AF VTVM AF level obtained when the AF output level is adjusted for 4.00V/4Ω...
TK-8180/8189 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ External View ■ Parts List ✽ : New Parts KRK-10 (Y60-4030-20) Ref. No. Address Parts No. Description parts KRK-10 A62-1101-01 MAIN PANEL A82-0056-11 REAR PANEL E30-7514-05 TRUNK CABLE E37-1121-05 FLAT CABLE F07-1884-03 MOLDING COVER ✽...
Page 86
TK-8180/8189 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ Exploded View and Packing 12 Protection bag (H25-0029-04) 13 Protection bag Dressed screw (N08-0550-04) x 2 (H25-2327-04) 13 Protection bag 19 Screw set 12 Protection bag (H25-2327-04) (N99-2040-05) (H25-0029-04) Molding cover (F07-1884-03) 13 Protection bag (H25-2327-04)
Page 87
TK-8180/8189 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ PC Board INTERFACE UNIT (X46-3310-20) INTERFACE UNIT (X46-3310-20) Component side view (J72-0934-09) Foil side view (J72-0934-09) RST2 TXD RXD RST2 SHIFT SHIFT PSENS PSENS J72-0934-09 B/2 J72-0934-09 B/2 J72-0934-09 A/2 J72-0934-09 A/2 PSENS SHIFT...
Page 88
TK-8180/8189 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ Schematic Diagram INTERFACE UNIT (X46-3310-20) (A/2) Radio Side PSENS SHIFT RST2 E40-6377-05 PSENS RST2 (LCDRST) (LCDDI) (LCDDO) (CLK) SHIFT C14 1000p : TC7WT125FU : MINISMDM075/24 D3~6 : DA204U D12~19 : AVRM1608080MAA (DM) E40-6371-05 INTERFACE UNIT (X46-3310-20) (B/2)
Page 89
TK-8180/8189 OPTIONAL ACCESSORIES: KRK-10 (Control Head Remote Kit: 23ft/7m) ■ Terminal Function Pin No. Name Description Pin No. Name Description CN1 (Radio side) MIC ground Speaker input MIC signal input Speaker input Ground Speaker input Ground Speaker input Detection signal input of power switch Speaker input No connection Speaker input...