Kenwood TK-2170 Service Manual

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[Page 1] Kenwood TK-2170

© 2005-3 PRINTED IN JAPAN B51-8720-00 ( N ) 1192 VHF FM TRANSCEIVER TK-2170 SERVICE MANUAL GENERAL ................................................... 2 SYSTEM SET-UP ....................................... 2 REALIGNMENT .............................

[Page 2] Kenwood TK-2170

TK-2170 2 INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced techni- cians familiar with similar types of commercial grade commu- nications equipment. It contains all required service informa- tion for the equipment and...

[Page 3] Kenwood TK-2170

TK-2170 3 1. Modes 2. How to Enter Each Mode Mode Operation User mode Power ON Panel test mode [A] + Power ON PC mode Received commands from PC Panel tuning mode [Panel test mode] + [S] Firmware programming mode [Side2] + Power ON Clone mode [B] + Po...

[Page 4] Kenwood TK-2170

TK-2170 4 5-2. Connection Procedure 1. Connect the transceiver to the personal computer with the interface cable. 2. When the POWER switch on, user mode can be entered immediately. When PC sends command the radio enter PC mode, and “PROGRAM” is ...

[Page 5] Kenwood TK-2170

TK-2170 5 How to enter the password with the selector; If the selector is rotated while “CLN LOCK” is displayed, numbers (0 to 9) are displayed flashing. When you press the [C] key, the currently selected number is determined. If you press the [S...

[Page 6] Kenwood TK-2170

TK-2170 6 8-3. Zone/Channel Select Mode ■ To enable Zone/Channel select mode 1. Press the [Side2] key when “SELF” is displayed. The transceiver enters Channel Select Mode. On the left half of the display, the zone number is displayed. On the...

[Page 7] Kenwood TK-2170

TK-2170 7 No. Function Choices Display Remarks DQT 023~754 Inverse (Standard Table Mode) DQT 000~777 Inverse (1 Step Mode) 3 TX Frequency Step 2.5kHz Same as RX frequency Step 5.0kHz Step 6.25kHz Step 7.5kHz Step 1MHz Blank Same as RX frequency 100.0...

[Page 8] Kenwood TK-2170

TK-2170 8 No. Function Choices Display Remarks 8 Wide/Narrow Wide ←Default Narrow 9 Busy Channel Lockout No ←Default QT/DQT Tone Option Signaling Carrier Only 10 Scan Delete/Add Add ←Default Delete 11 Beat Shift NO ←Default YES 12 Compander N...

[Page 9] Kenwood TK-2170

TK-2170 9 Self programming mode Channel select mode Zone select mode RX frequency RX signaling TX frequency TX signaling Option signaling ID Transmit power [Side2] [A] [C] [B] (Write data) [C] (Don’t write data) [B] (Write data) [C] (Don’t write ...

[Page 10] Kenwood TK-2170

TK-2170 10 ■ Zone edit mode flow chart Self programming mode Channel select mode Zone select mode Time-out timer TOT pre-alert TOT rekey time TOT reset time Option signaling decode condition Audio control [Side2] [A] [C] [B] (Write data) [C] (Don�...

[Page 11] Kenwood TK-2170

TK-2170 11 8-4. Function Setting Mode 1. Press the [Side1] key when “SELF” is displayed. The transceiver enters Function Setting Mode. 2. Press the [C] key to select the setting you wish to modify. 3. Rotate the selector to select the desired val...

[Page 12] Kenwood TK-2170

TK-2170 12 No. Function Choices Display Remarks Talk Around VOX Zone Up Zone Down 2 [S1] No Function 2-tone Autodial Autodial Programming AUX Optional Board=None Call 1 Call 2 CH/GID Down CH/GID Up Channel Entry Direct CH1 Direct CH2 Direct CH3 Direc...

[Page 13] Kenwood TK-2170

TK-2170 13 No. Function Choices Display Remarks 3 [S2] No Function 2-tone Autodial AUX Optional Board=None Autodial Programming Call 1 Call 2 CH/GID Down CH/GID Up Channel Entry Direct CH1 Direct CH2 Direct CH3 Direct CH4 Display Character Home/CH/GI...

[Page 14] Kenwood TK-2170

TK-2170 14 No. Function Choices Display Remarks Autodial Programming Call 1 Call 2 CH/GID Down CH/GID Up Channel Entry Direct CH1 Direct CH2 Direct CH3 Direct CH4 Display Character Home/CH/GID Key Lock Lamp Low Transmit Power Monitor Monitor Momentar...

[Page 15] Kenwood TK-2170

TK-2170 15 No. Function Choices Display Remarks CH/GID Up Channel Entry Direct CH1 Direct CH2 Direct CH3 Direct CH4 Display Character Home/CH/GID Key Lock Lamp Low Transmit Power Monitor Monitor Momentary OST Transceiver Password Scan Scan Delete/Add...

[Page 16] Kenwood TK-2170

TK-2170 16 No. Function Choices Display Remarks Direct CH3 Direct CH4 Display Character Home/CH/GID Key Lock Lamp Low Transmit Power Monitor Monitor Momentary OST Transceiver Password Scan Scan Delete/Add Scrambler SelCall SelCall+Status Squelch Leve...

[Page 17] Kenwood TK-2170

TK-2170 17 No. Function Choices Display Remarks Key Lock Lamp Low Transmit Power ←Default Monitor Monitor Momentary OST Transceiver Password Scan Scan Delete/Add Scrambler SelCall SelCall+Status Squelch Level Squelch Off Squelch Off Momentary Statu...

[Page 18] Kenwood TK-2170

TK-2170 18 No. Function Choices Display Remarks DTMF (Autodial) DTMF (Keypad Auto PTT) FleetSync (SelCall) FleetSync (Status) FleetSync (SelCall+Status) Optional Features 13 Auto Backlight YES/NO Default=No 14 Power-on Tone Current/Off, 1~31 Default=...

[Page 19] Kenwood TK-2170

TK-2170 19 No. Function Choices Display Remarks 33 First Digit Time 0, 100, 500, 1000 Default=0 34 ∗ and # Digit 0, 100, 500, 1000 Default=0 35 Dial ID ON/OFF Default=OFF, Key=16key only 36 D Code Assignment D Code Default=D Code 1~16/1s 37 DTMF Si...

[Page 20] Kenwood TK-2170

TK-2170 20 Self programming mode [AUX] key function [Side1] key function [Side2] key function [S] key function [A] key function [B] key function [C] key function [Side1] [B] (Write data) [C] (Don’t write data) [B] (Write data) [C] (Don’t write da...

[Page 21] Kenwood TK-2170

TK-2170 21 3. How to Assemble the Antenna Connec- tor and its Terminal The antenna connector and its terminal are supplied as separate parts. When replacing the antenna connector and/ or terminal, assemble the parts prior to the replacement. 1) Mount...

[Page 22] Kenwood TK-2170

TK-2170 22 DISASSEMBLY FOR REPAIR 4. Replacing the Speaker and Microphone 1) After affixing the double-sided tape (5.4 x 2.7 mm) to the speaker, attach the speaker to the speaker holder ( q ). 2) Insert the microphone into the hold of the holder, as ...

[Page 23] Kenwood TK-2170

TK-2170 23 1. Frequency Configuration The receiver utilizes double conversion. The first IF is 49.95MHz and the second IF is 450kHz. The first local oscil- lator signal is supplied from the PLL circuit. The PLL circuit in the transmitter generates ...

[Page 24] Kenwood TK-2170

TK-2170 24 2-5. Audio Amplifier Circuit The demodulated signal from IC701 is amplified by IC10, and goes to AF amplifier through IC13. The signal then goes through an volume control (IC16), and is routed to an audio power amplifier (IC18) where it is...

[Page 25] Kenwood TK-2170

TK-2170 25 4. Frequency Synthesizer Unit 4-1. Frequency Synthesizer The frequency synthesizer consists of the TCXO (X501), VCO, PLL IC (IC501) and buffer amplifiers. The TCXO generates 16.8MHz. The frequency stability is 2.5ppm within the temperatur...

[Page 26] Kenwood TK-2170

TK-2170 26 CIRCUIT DESCRIPTION 5-3. Low Battery Warning The battery voltage is monitored by the microprocessor (IC7 pin 123 : BATTLVL). When the battery voltage falls be- low the voltage set by the Low Battery Warning adjustment during the transmiss...

[Page 27] Kenwood TK-2170

TK-2170 27 CIRCUIT DESCRIPTION 6-2. Decode ■ QT/DQT The output signal from IF IC (IC701) enters the micropro- cessor (IC7) through IC11. IC7 determines whether the QT or DQT matches the preset value, and controls the AM1 us- ing IC5 and the speake...

[Page 28] Kenwood TK-2170

TK-2170 28 Pin No. Port Name I/O Function 1 VREF - +5V 1 KEY2 I Key matrix 2 input 2 KEY3 I Key matrix 3 input 3PCOTX APC adjust 4 HSDO O High speed data output 5 KEY4 I Key matrix 4 input 6 EEPCL O EEPROM clock 7 HSDIN I High speed data input 8 MDSW...

[Page 29] Kenwood TK-2170

TK-2170 29 Pin No. Port Name I/O Function 94 BB RDF/FD I BB RDF/FD 95 TCLK/DTRDO I BB TCLK and DTRDO 96 5RC O 5R control 97 KEY1O O Key matrix output 98 KEY2O O Key matrix output 99 KEY3O O Key matrix output 100 KEY4O O Key matrix output 101~108 D7~D...

[Page 30] Kenwood TK-2170

TK-2170 30 Ref. No. Use / Function Operation / Condition Q22 FET AF mute switch Q23 Transistor AF amplifier DC supply control switch Q24 FET AF amplifier DC supply switch Q25,26 FET MIC ALC Q27 Transistor AF mute control switch Q28 FET AF mute switch...

[Page 31] Kenwood TK-2170

TK-2170 31 PARTS LIST ✽ New Parts. indicates safety critical components. 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. L : Scandinavia K ...

[Page 32] Kenwood TK-2170

TK-2170 32 PARTS LIST C54 CK73HB1H471K CHIP C 470PF K C55 CK73GB1E105K CHIP C 1.0UF K C56 CK73HB1A104K CHIP C 0.10UF K C57 C92-0662-05 CHIP-TAN 15UF 6.3WV C58 CK73HB1H102K CHIP C 1000PF K C59 CC73HCH1H220J CHIP C 22PF J C60 CC73HCH1H120J CHIP C 12PF ...

[Page 33] Kenwood TK-2170

TK-2170 33 PARTS LIST C510 CK73HB1C223K CHIP C 0.022UF K C511 CK73GB1E105K CHIP C 1.0UF K C512 CK73HB1C103K CHIP C 0.010UF K C513 CK73HB1H102K CHIP C 1000PF K C514 CK73HB1H471K CHIP C 470PF K C515 CK73HB1H102K CHIP C 1000PF K C516 CK73GB1E105K CHIP C...

[Page 34] Kenwood TK-2170

TK-2170 34 PARTS LIST C724 CC73HCH1H330J CHIP C 33PF J C725 CK73HB1A104K CHIP C 0.10UF K C726 CK73HB1C103K CHIP C 0.010UF K C727 CK73HB1H102K CHIP C 1000PF K C728 CK73HB1C103K CHIP C 0.010UF K C729 CC73HCH1H010B CHIP C 1.0PF B C730 CC73HCH1H080B CHIP...

[Page 35] Kenwood TK-2170

TK-2170 35 PARTS LIST L901 L92-0149-05 CHIP FERRITE X1 L77-1950-05 CRYSTAL RESONATOR (11.0592MHZ) X2 L77-1976-05 CRYSTAL RESONATOR (3.6864MHZ) X501 ✽ L77-1969-05 TCXO (16.8MHZ) XF701 L71-0617-25 MCF (49.95MHZ) CP1 RK74HB1J473J CHIP-COM 47K J 1/16W ...

[Page 36] Kenwood TK-2170

TK-2170 36 PARTS LIST R146 RK73HB1J105J CHIP R 1.0M J 1/16W R147 RK73HB1J103J CHIP R 10K J 1/16W R149 RK73HB1J105J CHIP R 1.0M J 1/16W R150 RK73HB1J153J CHIP R 15K J 1/16W R151 RK73HB1J183J CHIP R 18K J 1/16W R152 RK73HB1J105J CHIP R 1.0M J 1/16W R15...

[Page 37] Kenwood TK-2170

TK-2170 37 PARTS LIST R612 RK73HB1J101J CHIP R 100 J 1/16W R613 ✽ RK73HB1J473J CHIP R 47K J 1/16W R614 RK73HB1J331J CHIP R 330 J 1/16W R616 R92-1368-05 CHIP R 0 OHM R618 RK73HB1J101J CHIP R 100 J 1/16W R619 RK73HB1J103J CHIP R 10K J 1/16W R621 RK73...

[Page 38] Kenwood TK-2170

TK-2170 38 PARTS LIST Q6 UMG3N TRANSISTOR Q7 UPA672T FET Q8 DTA114EE DIGITAL TRANSISTOR Q9 ✽ SSM6J08FU(F) FET Q12 2SC4617(S) TRANSISTOR Q13 2SB1132(Q,R) TRANSISTOR Q14,15 ✽ SSM3K15TE(F) FET Q16 2SA1774(S) TRANSISTOR Q17 2SC4649(N,P) TRANSISTOR Q1...

[Page 39] Kenwood TK-2170

TK-2170 39 EXPLODED VIEW 3 2 1 BA RF UNT SHIELDING PLATE 13 2 34 59 57 58 56 41 52 33 63 64 10 7 23 24 9 50 42 28 44 36 5 22 26 43 3 35 31 32 25 39 55 61 54 66 8 20 38 21 101 40 34 1 13 G TX-RX unit (D/4) TX-RX unit (B/4) TX-RX unit (C/4) TX-RX unit ...

[Page 40] Kenwood TK-2170

TK-2170 40 PACKING 3 2 1 DC 48 Item carton case (H52-2066-02) 17 Instruction manual (B62-1809-00) 53 Hook (J29-0701-05) 6 Cap (B09-0686-03) 51 Holder (J19-5483-13) 46 Packing fixture (H12-3150-02) 47 Protectio...

[Page 41] Kenwood TK-2170

TK-2170 41 Controls Panel Test Mode ■ Test mode operation features This transceiver has a test mode. To enter test mode, press [A] key and turn power on. Hold [A] key until fre- quency version appears on LCD. Test mode can be inhib- ited by pr...

[Page 42] Kenwood TK-2170

TK-2170 42 Panel Tuning Mode ■ Preparations for tuning the transceiver Before attempting to tune the transceiver, connect the unit to a suitable power supply. Whenever the transmitter is turned, the unit must be con- nected to a suitable dummy load...

[Page 43] Kenwood TK-2170

TK-2170 43 ■ Flow chart 3 reference level adjustments 3 reference level adjustments exit [C] Low [C] Center [C] High [A] [A] [A] 5 reference level adjustments 5 reference level adjustments exit [C] Low [C] Low’ [C] Center [C] High’ [C] High ...

[Page 44] Kenwood TK-2170

TK-2170 44 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications 1. Standard Signal Generator Frequency Range 136 to 174MHz (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1µV to greate...

[Page 45] Kenwood TK-2170

TK-2170 45 Item Condition Measurement Adjustment Specifications/Remarks Test- equipment Unit Terminal PartsUnit Method ADJUSTMENT 1. Frequency 1) Adj item : [FREQ_] f. counter Panel ANT Panel Selector High frequency Note : After replacing the adjust ...

[Page 46] Kenwood TK-2170

TK-2170 46 Item Condition Measurement Adjustment Specifications/Remarks Test- equipment Unit Terminal PartsUnit Method ADJUSTMENT 5. Low power [Panel test mode] Power meter Panel ANT Check 0.7~1.4W check 1) CH-Sig : 1-1 Ammeter 1.2A or less Set low p...

[Page 47] Kenwood TK-2170

TK-2170 47 Item Condition Measurement Adjustment Specifications/Remarks Test- equipment Unit Terminal PartsUnit Method ADJUSTMENT 12. DQT 1) Adj item : [DQT_ _] Power meter Panel ANT Panel Selector 0.37kHz ± 40Hz deviation Adjust : [✳✳✳.] knob...

[Page 48] Kenwood TK-2170

TK-2170 48 Item Condition Measurement Adjustment Specifications/Remarks Test- equipment Unit Terminal PartsUnit Method ADJUSTMENT 1. Sensitivity 1) Adj item : [SENS_] SSG Panel ANT Panel Selector Adjust for Rotate the selector knob and adjust Adjust ...

[Page 49] Kenwood TK-2170

TK-2170 49 ■ CN60 Pin No. Pin Name I/O Function 1 GND - GND 2 SSB O Switched B output DC (Battery terminal)±0.5V, 150mA max 3 AUX1 I/O Auxiliary 1 Input: L ≤ 0.45V, H ≥ 4.7V/25kΩ load Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load 4 AUX2 O Auxi...

[Page 50] Kenwood TK-2170

50 JIHGFEDCBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R619 R628 R630 R631 R632 R633 R634 R635 R636 R637 R638 R639R640 R643 R648 C633 C641 C644 C651 Q701 Q702 Q703 L501 L702 L704 L511 IC601 1 45 8 L901 R502 R507 R701 R702 R703 R704 R706 R708 R515R516 R901 R7...

[Page 51] Kenwood TK-2170

51 ABCDEFGH I J 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R612 R613 R614 R622 R624 R625 C602 R642 C610 C612 C613 C615 C619 C622 C625 C626 C635 C643 C646 Q502 D S G D S G Q503 Q504 1 34 6 Q505 D604 D605 D606 D608 D610 C670 L505 L506 C673 L508 L509 C677 C678 L7...

[Page 52] Kenwood TK-2170

52 JIHGFEDCBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 IC19 1 34 5 R224 R226 R229 R231 C49 R236 C52 R240 R248 G H Q12 Q19 D G S D D G G S S S10 A S11 2 S12 5 S13 8 C74 S14 0 S15 B S16 3 S17 6 S18 9 S19 # S20 C Q31 Q32 Q33 C87 C88 C89 C97 D4 D8 D9 R109 D12 D1...

[Page 53] Kenwood TK-2170

53 JKLMNOPQRS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C21 R210 R211 R214 R215 R216 R217 R229 C43 C44 1AUX PTT SIDE1 SIDE2 GND GND 6 R230 R231 D G S D G S D G S R259 C70C71 C73 C75 Q21 1 34 6 C76 C77 Q23 C79 Q25 Q26 Q28 C81 C82 C85 Q33 C87 Q35 G S D G S D C...

[Page 54] Kenwood TK-2170

JKLMNOPQRSIHGFEDCBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C21 IC19 1 34 5 R210 R211 R214 R215 R216 R217 R224 R226 R229 C43 C44 1AUX PTT SIDE1 SIDE2 GND GND 6 R230 R231 C49 R236 C52 R240 R248 G H Q12 Q19 D G S D D G G S S D...

[Page 55] Kenwood TK-2170

54 JIHGFEDCBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C20 C22 C25 C27 C31 C34 C35 C37 C38 C39 C40 C42 C57 C60 C62 C65 C66 C68 Q14 R255 C69 Q17 C3 C6 C9 D1 J1 EXT. SP/EXT. MIC CN18 CP10 CP11 L1 L6 L8 CP42 CP45 CP46 CP47 CP48 CP49 CP50 IC6 1 12 13 R11 R13 R14...

[Page 56] Kenwood TK-2170

55 JKLMNOPQRS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R239 C57 R246 R247 5 6 C68 C423 Q34 CN18 D28 CP42 CP49 CN60 R46 8 3 C185 R90 R91 R92 R93 R95 R98 R99 IC10 C /4 J72-0963-09 D/4 D G S D G S 5C DATAO ALT DEO LSDFO RSSI SP M MDSW G J72-0963-09 B/4 C50 C...

[Page 57] Kenwood TK-2170

JKLMNOPQRSIHGFEDCBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C20 C22 C25 C27 C31 C34 C35 C37 C38 C39 C40 C42 R239 C57 R246 R247 C60 C62 C65 C66 C68 Q14 R255 C69 Q17 C423 Q34 C3 C6 C9 D1 J1 EXT. SP/EXT. MIC CN18 CP10 CP11 D28 ...

[Page 58] Kenwood TK-2170

TK-2170 SCHEMATIC DIAGRAM 56 7 6 5 4 3 2 1 A B C D E X57-700 (B/4) 1/6, X57-700 (C/4) 1/1 BATSEL SB SB SIDE2 C33 1000p R68 180 R2 15k C11 2.2u R23 0 L1 R20 10k S4 R16 330 D9 * C16 1000p R14 1k R75 * SSM3K15TE(F) Q15 L3 PTT C34 1000p C27 22u6.3 Q6 UM...

[Page 59] Kenwood TK-2170

SCHEMATIC DIAGRAM TK-2170 57 X57-700 (B/4) 2/6, X57-700 (D/4) 1/1 TX-RX UNIT (X57-7000-XX) (B/4) JIHGF D27 MA2S111 S11 S16 SEL S30 D25 MA2S111 KEY3O S17 S6 C44 0.01u S29 R36 43k KEY2O S14 RX CP34 1k*4 S13 S24 S23 KEY3I S8 LCDINH R40 47k S27 1 STRB ...

[Page 60] Kenwood TK-2170

TK-2170 SCHEMATIC DIAGRAM 58 X57-700 (B/4) 3/6 K L M N O CP43 1k*2 R223 1k A8 R73 470k R55 470k A9 DTRLOAD 47k A5 CP8 1k*2 A4 CP40 1k*4 KEY2I D3 R102 47k A6 AUX6 AFDAT CP45 1k*2 AUX2 LCDDAT CP19 47k*2 R50 47k R45 1k EN2 CP38 1k*4 D1 R48 47k A2 R71 1...

[Page 61] Kenwood TK-2170

SCHEMATIC DIAGRAM TK-2170 59 X57-700 (B/4) 4/6 TSRQP R90 390k A15 R166 10k R108 330k C97 100p C63 12p A2 R109 820k A16 R103 1M AUX4 C98 0.068u A0 A18 1 2 3 4 VSS 5 6 7 8 VDD DMUTE R99 47k R147 10k R107 560k R171 0 AUX3 C189 0.1u R121 180k A17 R137 ...

[Page 62] Kenwood TK-2170

TK-2170 SCHEMATIC DIAGRAM 60 X57-700 (B/4) 5/6 U V W X Y A C89 1p C192 1000p R169 22k R162 120k C123 68p R236 120k SSM3K15TE(F) Q34 R165 150k C84 1000p R130 470k R142 22k R251 470k R243 470k R145 150k C125 0.1u AFDAT C133 1u C106 1000p L12 C100 4.7u...

[Page 63] Kenwood TK-2170

SCHEMATIC DIAGRAM TK-2170 61 X57-700 (B/4) 6/6 R230 12k R203 2.2k C149 220p R206 0 DSW 1 VIN1 2 VOUT1 3 VOUT2 4 VIN2 5 VDD 6 LD 7 CLK 8 DI 9 VIN3 10 VOUT3 11 VOUT4 12 VIN4 13 14 15 16 17 18 19 20 21 22 23 24 R180 10k APCSW C142 1u C172 100u6.3 R224...

[Page 64] Kenwood TK-2170

TK-2170 SCHEMATIC DIAGRAM 62 X57-700 (A/4) 1/2 -t R511 0 R612 100 B CN901 E40-6420-05 1 GND 2 RX 3 TX 4 MOD 5 TCXO 6 5MS 7 UL 8 PCLK 9 PDAT 10 PLE 11 THM 12 BPF 13 ASQL 14 RSSI 15 DETAF 16 WIDE 17 NARROW 18 5R 19 5C 20 5C 21 5T 22 5T 23 APCSW 24 DSW...

[Page 65] Kenwood TK-2170

SCHEMATIC DIAGRAM TK-2170 63 7 6 5 4 3 2 1 ANAMALAKAJ X57-700 (A/4) 2/2 -t -t C719 82p C573 1000p Q702 DTA144EE R716 3.3k R726 220k R535 100 R759 0 R708 10k C717 1u D702 DAN235E C572 10u10 R717 2.7k R636 0 R621 0.39 C718 22u6.3 R643 47k D514 HSC277...

[Page 66] Kenwood TK-2170

-t -t -t A BATSEL SB SB R511 0 C719 82p C573 1000p Q702 DTA144EE R612 100 B CN901 E40-6420-05 1 GND 2 RX 3 TX 4 MOD 5 TCXO 6 5MS 7 UL 8 PCLK 9 PDAT 10 PLE 11 THM 12 BPF 13 ASQL 14 RSSI 15 DETAF 16 WIDE 17 NARROW 18 5R 19 5C 20 5C 21 5T 22 5T 23 APCSW...

[Page 67] Kenwood TK-2170

TK-2170 BLOCK DIAGRAM 64 IC7 30625MGP234HU MICROPROCESSOR A0~A18 D0~D7 WR CSO RD IC8 AT29C040A-90TU SP LCD PANEL UL MOD X501 16.8MHz X1 11.0952MHz Q17 2SC4649(N,P) EEPROM IC501 ADF4111BCP7 IC9 CAT24WC64JI MIC TX,RX Q503 2SK508NV D508~5 1SV325 F Q50...

[Page 68] Kenwood TK-2170

BLOCK DIAGRAM TK-2170 65 AUDIO PROCESSOR IC13 AQUA-L 450kHz IF SW CF701 WIDE(E) IC701 TA31136FNG FM IF SYSTEM CD701 450kHz IF AMP MCF Q703 2SC4649(N,P) XF701 49.95MHz BPF BPF LPF TUNE Q705 3SK294(F) 5T APCSW Q607 DTC114EE IC601 TA75W01FUF DSW +B TX...

[Page 69] Kenwood TK-2170

TK-2170 66 LEVEL DIAGRAM AQUA AQUA VCO –36.5dBm –71dBm –59.5dBm –52.5dBm –47dBm –50.5dBm 210mVrms 370mVrms 50mVrms 2.3Vrms –80dBm 10.5dBm 225mVrms 480mVrms –6.5dBm –5dBm 15mVrms 32.5dBm13dBm –77.5dBm C779 36dBm C724C728 C768 C732 ...

[Page 70] Kenwood TK-2170

TK-2170 67 KSC-30 (RAPID CHARGER) A02-3656-08 Cabinet Bottom A02-3841-08 Cabinet Upper B43-1151-08 Badge B62-1754-08 Instruction manual K,T B62-1755-08 Instruction manual E B72-2209-08 Model name plate E03-0453-08 DC jack E23-1190-08 Relay terminal G...

[Page 71] Kenwood TK-2170

TK-2170 GENERAL Frequency range ....................................... 136~174MHz Number of channels .................................. Zone : Max. 128 per radio Conv. Ch : Max. 128 per zone Channel spacing ........................................ W...