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TK-8108H

SPECIFICATIONS

GENERAL

Frequency Range ............................... 450 to 490MHz

Channels / Groups .............................. 8 channels

Channel Spacing ................................. Wide : 25kHz

Narrow : 12.5kHz

PLL Channel Stepping ........................ 5.0, 6.25kHz

Operating Voltage ............................... 13.6V DC

15%

Current Drain ...................................... Less than 0.4A on standby

Less than 1.0A on receive

Less than 14.0A on transmit

Operating Temperature Range ........... –30

C to +60

Dimensions & Weight ........................ 6.30 (160) W x 1.70 (43) H x 5.40 (137) D inch (mm), 2.60 lbs (1.18kg)

Channel Frequency Spread ................ 40MHz

RECEIVER

(Measurements made per EIA standard EIA/TIA-603)

Sensitivity (12dB SINAD) .................... Wide : 0.28

Narrow : 0.35

Selectivity ........................................... Wide : 75dB

Narrow : 65dB

Intermodulation ................................... Wide : 70dB

Narrow : 60dB

Spurious Response ............................. 75dB

Audio Power Output ........................... 4.0W

Frequency Stability .............................

2.5ppm

TRANSMITTER

(Measurements made per EIA standard EIA/TIA-603)

RF Power Output ................................ High : 45W

Low : 25W

Spurious and Harmonics ..................... 70dB

Modulation .......................................... Wide : 16K0F3E

Narrow : 11K0F3E

FM Noise ............................................ Wide : 45dB

Narrow : 40dB

Audio Distortion .................................. Less than 3%

Frequency Stability .............................

2.5ppm

Содержание TK-8108H

Страница 1: ...NG 28 ADJUSTMENT 29 TERMINAL FUNCTION 34 PC BOARD DISPLAY UNIT X54 3460 20 35 TX RX UNIT X57 6710 24 37 SCHEMATIC DIAGRAM 43 BLOCK DIAGRAM 47 LEVEL DIAGRAM 49 SPECIFICATION 51 CONTENTS REVISED This service manual applies to products with 50300001 or subsequent serial numbers In terms of the products with the serial numbers earlier than 50300001 refer to the TK 8108H service manual as per part No B...

Страница 2: ...required to install or operate the radio 3 PRE INSTALLATION CHECKOUT 3 1 Introduction Each radio is adjusted and tested before shipment How ever it is recommended that receiver and transmitter opera tion be checked for proper operation before installation 3 2 Testing The radio should be tested complete with all cabling and accessories as they will be connected in the final installation Transmitter...

Страница 3: ...he schematic diagrams printed circuit board views and align ment procedures contained in this manual Speaker jack cap Power input connector Antenna connector NOTE If you do not intend to use the 3 5 mm jack for the external speaker fit the supplied speaker jack cap to stop dust and sand from getting in Merchandise received License and frequency allocated by FCC Choose the type of transceiver Trans...

Страница 4: ... volume level e key Press to decrease the volume level r key PF Programmable Function key The default setting of this key is None no function The programmable func tions available for this key are listed below t key PF Programmable Function key The default setting of this key is Monitor Other programmable functions avail able for this key are listed below y 1 2 3 4 keys Press to select a channel f...

Страница 5: ... Monitor Used to release signalling press once or squelch press and hold for approximately two seconds when operating as a conventional It is also used to reset option signalling Scan ON OFF Press this key starts scanning Pressing this key stops scanning Talk around Press this key the transceiver uses the receive frequency and the tone for transmission The operator can call the other party directl...

Страница 6: ... scan re start immediately The temporary deleted channels return to pre set delete add channels when the transceiver is turned off or the scan function is switched off 5 Details of Features Time out timer The time out timer can be programmed in 30 seconds in crements from 30 seconds to five minutes and off If the transmitter is transmitted continuously for longer than the programmed time the trans...

Страница 7: ...hibited or TX RX inhibited While stun is active if the stun code code is received stun will deactivate When stun matches transpond will function Alert will not be output 7 Audible User Feedback Tones The transceiver outputs various combinations of tones to notify the user of the transceiver operating state Refer to the help file on the KPG 70D regarding the func tions that are not listed below Stu...

Страница 8: ... the Power is switched on user mode can be en tered immediately When the PC sends a command the radio enters PC mode When data is transmitted from transceiver the red LED blink When data is received by the transceiver the green LED blink In the PC mode 4CH LEDs MON LED and LED are turned on Notes The data stored in the personal computer must match model type when it is written into the EEPROM Atta...

Страница 9: ...y the same program as the master 5 The other slave can be continuously cloned Carry out the operation in step 2 to 4 4 1 Adding the data password If the data password is set in the optional feature menu you must enter the password Master transceiver to activate a clone mode you can use 1 2 3 and 4 to configure the password The maximum length of the password is 10 digits 1 1 Power ON 2 1 4 LED and ...

Страница 10: ...13 2 5 8 11 14 3 6 9 12 15 No Color Internal Name connector 1 Red CN2 1 SB 2 Pink CN3 1 IGN 3 Black CN2 3 GND 4 Brown CN3 3 DETO 5 Orange CN3 2 DATAI 6 Yellow CN2 8 FNC4 7 Green CN2 7 FNC3 8 Blue CN2 9 FNC5 9 Purple CN2 12 FNC8 10 Gray CN2 10 FNC6 11 White CN2 11 FNC7 12 NC NC 13 NC NC 14 Sky blue CN2 6 FNC2 15 Turquoise CN2 5 FNC1 Accessory Port Function REALIGNMENT 6 Ignition Sense Cable KCT 18 ...

Страница 11: ...ation 1 Remove the cabinet and shielding cover from the trans ceiver 2 Delete R202 and R267 on the TX RX unit A 9 8 7 D C B A A12 1 3 7 8 9 10 11 12 1 12 B A11 C A10 D A9 E 1 2 3 4 5 B5 6 B7 7 A8 8 A7 9 A3 10 B11 11 B9 12 B4 E18 Voice scrambler board 12 pins lead wire with connector A E37 1081 05 CN2 12 6 5 11 10 1 4 5 7 9 11 1 11 11 pins lead wire with connector B E37 1080 05 CN3 Connection The f...

Страница 12: ...r board is connected subsequent to the de emphasis circuit Cushion G13 1963 04 Cushion G13 1964 04 Voice scrambler board Front side to CN2 and CN3 to CN2 and CN3 CN3 Voice scrambler board CN2 TX RX UNIT Component side Avoid forming the wiring towards shielding cover closure area 1 2 Example for Connection Picture Trunking Board Fig 3 Insulation sheet Cushion D G13 1972 04 Cushion C Cushion B Trunk...

Страница 13: ...the display unit PCB detach the PCB by lifting at the indents of the PCB as shown below Fig 3 Tabs Tabs Tabs Indents Fig 5 5 When mounting the front panel match the 4 tabs of the chassis with the panel being sure they attach securely Tabs Tabs 4 Mount the display unit To mount the display unit on the panel follow the correct procedures shown to ensure easy display unit assembly and good fitting on...

Страница 14: ... SYSTEM PLL VCO 16 8MHz 50 4MHz ANT RX TX SP MIC Fig 1 Frequency configuration IF Amplifier The first IF signal is amplified by Q351 and the enters IC301 FM processing IC The signal is heterodyned again with a second local oscillator signal within IC301 to create a 450kHz second IF signal The second IF signal is then fed through a 450kHz ceramic filter Wide CF301 Narrow CF302 to further eliminate ...

Страница 15: ...IC251 IC161 W NO EVOL2 AF PA IC252 SP IF IC IC301 Q301 NOISE AMP D301 IC301 IC101 AFO RSSI DET CPU IF SYSTEM SQIN RSSI Fig 3 Wide Narrow changeover circuit Fig 4 AF signal system Fig 5 Squelch circuit PLL Frequency Synthesizer The PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission PLL The frequency step of the PLL circuit is 5 or 6 25kHz A 16 8...

Страница 16: ... resulting signal is goes the an tenna terminal APC Circuit The automatic transmission power control APC circuit detects part of a final amplifier Q504 output with a diode D606 D607 and applies a voltage to IC501 IC501 com pares the APC control voltage PC generated by the D A con verter IC161 and DC amplifier IC203 with the detection output voltage IC501 generates the voltage to control Q502 Q503 ...

Страница 17: ...trix of the KMI1 to KMO2 ports of the microprocessor The KMO1 to KMO2 ports are always high while the KMI1 to KMI4 ports are al ways low The microprocessor monitors the status of the KMI1 to KMO2 ports If the state of one of the ports changes the microprocessor assumes that the key at the matrix point cor responding to that port has been pressed Encode The QT and DQT signals are output from QT DQT...

Страница 18: ...ge detect IC IC34 IC34 will generate signal RESET in to the reset terminal on the CPU IC101 to carry out a power ON reset Also CPU IC101 is checking on port 91 Battery Volt age If DC power is less than about 9 5V the radio is unable to power on When the DC power voltage deceases from normal volt age the INT voltage detector IC IC35 will set to high on CPU port 18 INT if B line will became less tha...

Страница 19: ...rt 3 44 CEFLS I O CE for flash 45 46 FNC4 FNC5 I O Function port 4 5 47 48 FNC7 FNC6 I O Function port 7 6 49 FNC8 I O Function port 8 50 AFM O AF mute 51 SPM O Speaker mute Pin No Name I O Function 52 AMPSW O AF AMP switch 53 DT O Common data 54 CK O Common clock 55 56 NC I 57 59 DST1 DST3 I Destination 1 3 60 VCC 5V 61 NC I 62 VSS GND 63 NC I 64 NARROW O 65 WIDE O 66 68 NC I 69 CL O Clock for LC...

Страница 20: ...tive while AFM is H Q254 Digital transistor AF mute Active while SPM is H Ref No Parts name Description Q255 Transistor AF mute Active while AMPSW is H Q301 Transistor SQL amplifier Noie amplifier Q302 Transistor Buffer amplifier 16 8MHz 3rd over tone Q351 Transistor IF amplifier Q352 FET Mixer Q353 FET RF amplifier LNA Q402 403 Transistor Charge pump Q404 Transistor RF amplifier PLL F in Q405 FET...

Страница 21: ... 45 3C N99 0395 05 SCREW SET ACCESSORY 47 3A T07 0739 05 SPEAKER D1 4 B30 2238 05 LED Y D5 10 B30 2239 05 LED SY D11 B30 2237 05 LED YG D12 B30 2240 05 LED SR C4 CK73GB1H103K CHIP C 0 010UF K C8 17 CK73GB1H103K CHIP C 0 010UF K C18 CK73GB1A105K CHIP C 1 0UF K C25 CK73GB1H103K CHIP C 0 010UF K C27 CK73GB1C104K CHIP C 0 10UF K CN1 E40 6005 05 FLAT CABLE CONNECTOR J1 E08 0877 05 MODULAR JACK L1 L92 0...

Страница 22: ...516 05 CHIP TAN 4 7UF 16WV C280 C92 0040 05 CHIP ELE 47UF 16WV C281 CK73GB1H471K CHIP C 470PF K C282 C92 0722 05 CHIP ELE 470UF 16WV C283 CK73GB1H102K CHIP C 1000PF K C301 C92 0507 05 CHIP TAN 4 7UF 6 3WV C302 CK73GB1H102K CHIP C 1000PF K C303 CK73GB1H472K CHIP C 4700PF K C304 305 CC73GCH1H221J CHIP C 220PF J C306 CK73GB1H102K CHIP C 1000PF K C307 CK73GB1E223K CHIP C 0 022UF K C308 CK73GB1H102K CH...

Страница 23: ...V C538 CK73FB1C474K CHIP C 0 47UF K C539 CK73FB1H471K CHIP C 470PF K C540 C93 0568 05 CHIP C 47PF J C541 C93 0566 05 CHIP C 33PF J C543 C93 0599 05 CHIP C 470PF K C545 C93 0560 05 CHIP C 10PF D C548 549 C93 0566 05 CHIP C 33PF J C550 551 CM73F2H300J CHIP C 30PF J C555 CK73FB1C474K CHIP C 0 47UF K C556 C93 0599 05 CHIP C 470PF K C559 CK73GB1H103K CHIP C 0 010UF K C560 CK73GB1H471K CHIP C 470PF K C5...

Страница 24: ... 16W R114 119 RK73GB1J102J CHIP R 1 0K J 1 16W R121 123 R92 1252 05 CHIP R 0 OHM J 1 16W R124 RK73GB1J473J CHIP R 47K J 1 16W R125 128 RK73GB1J102J CHIP R 1 0K J 1 16W R129 R92 1252 05 CHIP R 0 OHM J 1 16W R130 131 RK73GB1J102J CHIP R 1 0K J 1 16W R151 RK73GB1J103J CHIP R 10K J 1 16W R152 RK73GB1J472J CHIP R 4 7K J 1 16W R161 RK73GB1J122J CHIP R 1 2K J 1 16W R162 RK73GB1J152J CHIP R 1 5K J 1 16W R...

Страница 25: ...05 R92 1252 05 CHIP R 0 OHM J 1 16W R407 RK73GB1J152J CHIP R 1 5K J 1 16W R408 RK73GB1J100J CHIP R 10 J 1 16W R409 RK73GB1J104J CHIP R 100K J 1 16W R410 411 RK73GB1J103J CHIP R 10K J 1 16W R412 RK73GB1J123J CHIP R 12K J 1 16W R413 RK73GB1J103J CHIP R 10K J 1 16W R414 415 R92 1252 05 CHIP R 0 OHM J 1 16W R416 RK73GB1J471J CHIP R 470 J 1 16W R417 RK73GB1J224J CHIP R 220K J 1 16W R418 419 RK73GB1J102...

Страница 26: ...C101 30622MAA B83GP MPU IC161 M62363FP MOS IC IC201 NJM2100V MOS IC IC202 NJM2904V MOS IC IC203 NJM2902V MOS IC IC251 NJM2902V MOS IC IC252 2B LA4600 AF POWER IC IC301 TK14489V BI POLAR IC IC401 MB15A02 MOS IC IC501 TA75W01FU MOS IC Q1 2SK1824 FET Q31 2SA1641 S T TRANSISTOR Q32 KRC102S DIGITAL TRANSISTOR Q33 2SA1745 6 7 TRANSISTOR Q34 KRC102S DIGITAL TRANSISTOR Q35 KTA1664 Y TRANSISTOR Q36 KRC102S...

Страница 27: ... 26 24 15 Q504 IC252 A 700 Caution label 701 S No label A A C C C C C C Cx2 Bx12 B B 12 30 27 25 10 TX RX unit Display unit A M2 6 x 8 N67 2608 46 B M2 6 x 6 Br Tap N87 2606 46 C M2 6 x 14 Br Tap N87 2614 46 Parts with the exploded numbers larger than 700 are not supplied ...

Страница 28: ...2 05 35 Packing fixture H12 3112 05 8 Instruction manual B62 1665 10 702 Pamphlet 703 Pamphlet 38 Item carton cse H52 1829 22 45 Screw set N99 0395 05 41 Bracket J29 0662 03 36 Carton board H13 1190 02 14 DC cord E30 3339 05 22 Fuse 6x30 F51 0017 05 x 2 Parts with the exploded numbers larger than 700 are not supplied ...

Страница 29: ...r 20A 8 AF Volt Meter Frequency Range 50Hz to 10kHz AF VTVM Voltage Range 1mV to 3V 9 Audio Generator AG Frequency Range 20Hz to 20kHz or more Output 0 to 1V 10 Distortion Meter Capability 3 or less at 1kHz Input Level 50mV to 10Vrms 11 4Ω Dummy Load Approx 4Ω 10W or more 12 Regulated Power Supply 13 6V approx 20A adjustable from 9 to 17V Useful if ammeter requipped 13 Spectrum Analyzer Center fre...

Страница 30: ...shield cover as below Fuse To mount the fuse the cable terminal direction must be as follow Locator Speaker cable This side up This side up Cable terminal Cable terminal Fuse Pin 1 marker IC252 Part name label face down TX RX UNIT Component side Power MIC jack 1 2 3 4 keys Volume up down key key Speaker Display R822 R823 TEMP2 Q503 Q504 R525 R536 IC252 RESET RXD TXD POWER CNVSS 5M E B RF CV DC 8T ...

Страница 31: ...ide Spectrum analyzer BPF TC353 to Fig 1 filter CH RX high Wide 2 Tra generator output 30dBm Connect the spectrum analyzer to BPF terminal Adjustment of TX VCO lock voltage 1 Remove R525 R823 R536 and R822 all on component side 2 Remove PCB from chassis 3 Transmit and check voltage at CV point Warning Do not transmit if step 1 is not complete 4 Adjust of voltage can be done by tuning TC402 Item Co...

Страница 32: ...r Wide Narrow CH RX high Wide 2 SSG output 120dBm 0 22µV Wide 119dBm 0 25µV Narrow Mod 1kHz Dev 3 0kHz Wide Dev 1 5kHz Narrow Item Condition Test equipment Terminal Parts Method Specifications Remarks Measurement Adjustment ADJUSTMENT Transmitter Section 1 Frequency 1 CH TX center Frequency counter ANT PC key Adjust to center frequency Within 100Hz 2 Transmit 2 Maximum 1 CH TX high Power meter VR1...

Страница 33: ... Transmit and check for power to be within the range of 0 7W 1W If power found is less than 0 5W check the circuit before the Drive FET Item Condition Test equipment Terminal Parts Method Specifications Remarks Measurement Adjustment ADJUSTMENT 5 DQT 1 CH TX low Wide Modulation analyzer ANT PC key Adjust the waveform as below balance CH TC center Wide Narrow or Linear detector CH TX high Wide LPF ...

Страница 34: ...ler Code1 1 O FNC6 Scrambler Code2 2 O FNC7 Scrambler Code3 4 O FNC8 Scrambler Code4 8 O Port Function is Low Active Exclude Scrambler Code CN3 No Name I O Function 1 IGN I Ignition sens input 2 DATAI I External transmit signal input 3 DETO O FM detector output 4 TXAFI I TX audio input from scrambler board 5 TXAFO O TX audio output to scrambler board 6 EMGMIC I Emergency MIC input 1kHz 1 2mVrms 7 ...

Страница 35: ...R12 R13 R14 R15 R16 R17 R18 R19 R20 Q4 Q9 R1 R2 R3 R4 R5 R6 R7 R8 R9 CP3 CP4 C10 C11 C12 C13 C14 C15 C16 C17 C18 J72 0916 09 J1 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 POWER UP DOWN 1 2 3 4 MONI PROG J72 0916 09 J1 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 POWER UP DOWN 1 2 3 4 MONI PROG PC BOARD TK 8108H 36 35 DISPLAY UNIT X54 3460 20 Component side view J72 0916 09 DISPLAY UNIT X54 3460 20 Foil side...

Страница 36: ...C526 C527 C528 R1 R35 R2 R36 R3 R37 R5 C532 C534 C535 C536 C537 C538 R380 C539 C151 C152 C540 C541 C543 C545 C351 C353 C548 C354 TH351 C549 C355 C161 C162 C356 C163 C164 Q201 Q202 C550 C551 C555 D302 C556 D303 C559 Q402 Q403 C560 L201 D503 C564 C565 C567 R71 R72 R73 R74 R75 R76 R77 L403 C570 R78 L404 C574 C575 C576 R81 R82 IC501 C391 TH97 TH98 Q252 Q253 Q254 Q255 C10 C13 C14 C15 R201 R202 C16 R203...

Страница 37: ...507 C509 R358 C510 R359 C511 C512 C513 C514 C515 C516 R360 XF351 R361 R362 C326 R363 R364 R365 R366 R367 C520 C521 R369 C522 C523 C524 R370 R371 R31 R32 R372 R33 R373 R374 R34 R375 R376 R377 R4 R378 R38 R39 R40 R41 R381 C357 C358 C359 C360 D301 C361 C362 C363 C364 R61 R62 C366 C367 Q404 C368 Q405 C369 Q406 R66 TC352 Q407 TC353 R67 Q408 R68 R69 D502 C370 C371 C372 C373 Q410 R70 C374 IC101 Q411 C375...

Страница 38: ... C232 C83 C233 R270 R271 R272 R273 R274 R275 Q35 R823 Q36 R276 R277 R278 R279 R280 C97 C98 TEMP2 C442 C250 D1 D2 D3 D4 D5 D6 D7 D8 D9 D201 D202 Q302 C267 C268 C269 D401 D402 C270 C271 C272 Q503 C273 Q504 C274 Q71 C275 C276 C277 C278 D601 D602 L302 L303 L304 C281 L505 L506 L507 L508 IC401 D251 Q351 R101 R105 R106 R107 D10 R108 D11 R302 R303 R304 R305 R306 R112 R113 R114 R115 R116 R117 R118 R119 R31...

Страница 39: ...3 MA2S304 R256 5 6k R233 6 8k Q408 KRX102U C408 22p 69 R606 220 D10 DA221 C49 0 01u C55 0 1u R445 0 R509 10 47 R513 6 8k R512 3 3k C510 470p C511 470p R446 0 C516 3p 2SK2596 Q502 C520 470p R518 15k R519 22 R520 33k L503 3 3n R522 0 C522 0 1u C521 470p L504 10n C523 8T C517 470p C518 47u16 PD55008TR Q503 R536 10 820 820 C528 47p 47p 10p 12p 8p C527 C534 470p C526 9p 5n 5 6 47p R534 R535 56k 68k R52...

Страница 40: ...363FP 3 8 IC161 M62363FP 4 8 8T Q406 2SK508NV K52 IC35 PST9140NR IC161 M62363FP 8 8 RESET X86 IC161 M62363FP 1 8 IC34 PST9140NR DTMF BEEP 8TC SB SQIN Q32 KRC102S 8C PTT SPLATTER FILTER SBC KMI3 Q251 2SC4617 S PTT TXD 8C MICBL MIC IDC FINAL AMP Q404 2SC4649 N P 16 8MHz 8C SPM MICEM SIGNAL PTT TXD Q34 KRC102S CM 8T DRIVE AMP2 SB B IF DEMODULATOR GND AF PA AFM SW ME MCF INT Q407 2SJ243 D601 602 MA4PH...

Страница 41: ...the AC level meter AG is set so that MIC input becomes 3kHz 1 5kHz Wide Narrow DEV at 1kHz MOD Q251 TX RX Unit VCO TX RX Unit D 5dBm Q411 10 S 11 14 TX RX Unit To make measurements in the AF section connect the AC level meter ANT input 53dBm 1kHz FM 3kHz DEV Wide 1 5kHz DEV Narrow The AF output level is adjusted for a 0 45V 4Ω by the front panel AF VOL control 8 G D409 IC161 IC203 4Ω G1 12 9 Q503 ...

Страница 42: ...0 43 H x 5 40 137 D inch mm 2 60 lbs 1 18kg Channel Frequency Spread 40MHz RECEIVER Measurements made per EIA standard EIA TIA 603 Sensitivity 12dB SINAD Wide 0 28µV Narrow 0 35µV Selectivity Wide 75dB Narrow 65dB Intermodulation Wide 70dB Narrow 60dB Spurious Response 75dB Audio Power Output 4 0W Frequency Stability 2 5ppm TRANSMITTER Measurements made per EIA standard EIA TIA 603 RF Power Output...

Страница 43: ...is 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 Via G Sirtori 7 9 20129 Milano Italy KENWOOD IBERICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue Centrecourt E...

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