Instruction/ maintenance manual of the product TK-7102 Kenwood
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TK - 7 102 TK - 7 102 © 2001-5 PRINTED IN JAPAN B51-8584-00 ( S ) 283 VHF FM TRANSCEIVER T K-71 0 2 SER VICE MANU AL Panel assy (A62-0942-03) Front glass (B10-2668-03) Cabinet (A01-2178-02) Key top (K29-9065-01) SPECIFICA TIONS GENERAL Frequency Range .
TK - 7 102 TK - 7 102 2 2 47 CONTENTS / GENERAL GENERAL INTRODUCTION SCOPE␣ OF␣ THIS␣ MANUAL This manual is intended for use by experienced techni- cians familiar with similar types of commercial grade com- munications equipment. It contains all required service in- formation for the equipment and is current as of this publica- tion date.
3 T K-71 0 2 5. INSTALLATION␣ PLANNING – CONTROL␣ STATIONS 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 sys- tem that will best serve your particular needs.
4 T K-71 0 2 1. Controls and Functions 1-1. Front Panel q (Power) switch Press to switch the transceiver ON. Press and hold for approximately 1 seconds to switch the transceiver OFF. w ▲ key Press to increase the volume level. e ▼ key Press to decrease the volume level.
5 T K-71 0 2 2. Operation Features The TK-7102 is a VHF FM radio designed to operate in conventional format. The programmable features are sum- marized. 3. Transceiver Controls and Indicators 3-1. Front Panel Controls All the keys on the front panel are momentary-type push buttons.
6 T K-71 0 2 ■ Temporary delete It is possible to delete channel temporary during scan. When scan stops on unnecessary channel for example by interference of the other party, activate the delete function (for example press and hold the key for approximately one second), then that channel is deleted temporarily and scan re-start immediately.
7 T K-71 0 2 ■ Stun If the stun code matches, a predetermined action will oc- cur. Whether option signalling is activated or not, when stun matches on any channel, the transceiver will become TX inhibited or TX/RX inhibited. While stun is active, if the stun code + "#" code is received, stun will deactivate.
8 TK -7102 REALIGNMENT 3-4. Programming Software Description The KPG-70D programming disk is supplied in 3-1/2" disk format. The software on this disk allows a user to program TK-7102 radio via a programming interface cable (KPG-46).
9 TK -7102 1. When you remove the panel, turn the transceiver up side down. Detach the panel by lifting the tabs as shown below. Fig. 1 Fig. 2 DISASSEMBL Y FOR REP AIR 2. To remove the cabinet, first turn the transceiver up side down. Detach the cabinet by prying the tabs as shown below.
10 T K-71 0 2 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 the neces- sary frequencies.
11 T K-71 0 2 ■ Wide/Narrow Changeover Circuit The Wide port (pin 92) and Narrow port (pin 91) of the CPU is used to switch between ceramic filters. When the Wide port is high, the ceramic filter SW diodes (D13, D15) cause CF1 to turn on to receive a Wide signal.
12 T K-71 0 2 D10,12 Q11 TX VCO Q15 BUFF AMP D9,11 Q10 RX VCO Q7,12 T/R SW Charge pump LPF Phase comparator 1/M 1/N 5kHz/6.25kHz 5kHz/6.25kHz REF OSC 16.8MHz PLL D ATA IC1 : PLL IC Q3 RF AMP Fig. 6 PLL circuit ■ Unlock Circuit During reception, the 8RC signal goes high, the 8TC sig- nal goes low, and Q29 turns on.
13 T K-71 0 2 ■ APC Circuit The automatic transmission power control (APC) circuit detects part of a power module output with a diode (D34, D36) and applies a voltage to IC12.
14 T K-71 0 2 ■ Encode The QT and DQT signals are output from QT/DQT of the CPU (IC6) and summed with the external pin DI line by the summing amplifier (IC4) and the resulting signal goes to the D/A converter (IC3). The DTMF signal is output from DTMF of the CPU and goes to the D/A converter (IC3).
15 T K-71 0 2 SEMICONDUCTOR DA T A ■ Terminal function Pin No. Name I/O Function 1N C I 2 DTMOSC O DTMF IC Clock Control 3 PLLE O PLL IC Chip Select 4 EVLLD O E-Volume LD 5 DTMCK O DTMF Dec IC Clock 6 DTMDT I/O DTMF Dec IC Data 7 UL O Unlock Detect 8 BSHIFT O Clock Shift 9 VDD - 10 X2 - X’TAL(7.
16 T K-71 0 2 DESCRIPTION OF COMPONENTS Display Unit (X54-3340-20) SYMBOL PARTS NAME DISCRIPTION D1~4 LED KEY BACKLIT D5 LED MONITOR KEY LIGHT D6 LED PROGRAMMABLE KEY LIGHT D7~10 LED CHANNEL KEY LIGHT.
17 T K-71 0 2 DESCRIPTION OF COMPONENTS Ref. No. Use/Function Operation/Condition Q34 TRANSISTOR DC SWITCH(SB) /Active when power on Q35 TRANSISTOR AF MUTE /Active while Mute3 is H Q37 TRANSISTOR BEAT.
18 TK-7102 P ARTS LIST 11 B ∗ A01-2178-02 CABINET 23 B ∗ A10-4047-01 CHASSIS 33 A ∗ A62-0942-03 PANEL ASSY 43 A ∗ B10-2668-03 FRONT GLASS 52 C ∗ B62-1389-00 INSTRUCTION MANUAL 63 B ∗ B72-1.
19 TK-7102 Ref. No. Parts No. Description Address New parts Ref. No. Parts No. Description Address New parts Destination Destination TX-RX UNIT (X57-6290-20) M:TK-2107 M2:TK-2107 P ARTS LIST C94 CC73GCH1H101J CHIP C 100PF J C95 CC73GCH1H050B CHIP C 5.
20 TK-7102 Ref. No. Parts No. Description Address New parts Ref. No. Parts No. Description Address New parts Destination Destination TX-RX UNIT (X57-6290-20) 400~420Hz : C5 450~470Hz : C6 P ARTS LIST C274 CK73GB1H103K CHIP C 0.010UF K C275 CK73GB1C104K CHIP C 0.
21 TK-7102 Ref. No. Parts No. Description Address New parts Ref. No. Parts No. Description Address New parts Destination Destination TX-RX UNIT (X57-6290-20) M:TK-2107 M2:TK-2107 P ARTS LIST L54 ∗ L41-1085-06 SMALL FIXED INDUCTOR L55 L92-0140-05 FERRITE CHIP X1 ∗ L77-1868-05 TCXO (16.
22 TK-7102 Ref. No. Parts No. Description Address New parts Ref. No. Parts No. Description Address New parts Destination Destination TX-RX UNIT (X57-6290-20) 400~420Hz : C5 450~470Hz : C6 P ARTS LIST R158 RK73GB1J102J CHIP R 1.0K J 1/16W R159,160 RK73GB1J101J CHIP R 100 J 1/16W R161 RK73GB1J333J CHIP R 33K J 1/16W R162 RK73GB1J102J CHIP R 1.
23 TK-7102 Ref. No. Parts No. Description Address New parts Ref. No. Parts No. Description Address New parts Destination Destination TX-RX UNIT (X57-6290-20) M:TK-2107 M2:TK-2107 P ARTS LIST R313 RK73.
24 TK - 7102 EXPLODED VIEW Parts with the exploded numbers larger than 700 are not supplied. A B 1 2 3 1 16 C C C C C A A A A B B B B B B B 12 9 18 TX-RX UNIT 7 14 2 6 17 3 4 15 11 26 10 DISPLA Y UNIT.
25 TK - 7102 P ACKING Parts with the exploded numbers larger than 700 are not supplied. D SCREW SET (N99-0395-05) Protection bag (H25-0103-04) 8 DC cord (E30-3339-05) 19 Inner P acking Case (H02-0617-.
26 TK - 7102 Test Equipment Required for Alignment Test Equipment Major Specifications 1. Standard Signal Generator Frequency Range 140 to 175MHz (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1 µ V to greater than –7dBm/100mV 2.
27 TK - 7102 ADJUSTMENT Adjustment Location ■ Switch ■ Adjustment Point • Component Side View ■ Note • EEPROM The tuning data (Deviation, Squelch, etc.) for the EEPROM, is stored in memory. When parts are changed, readjust the transceiver. • AF PA IC (IC102) How to mounting the IC102.
28 TK-7102 TK-260 : K, K2 Test frequency(MHz) Channel TX RX 1: Center 160.100 160.050 2: Lo w 146.100 146.050 3: High 173.900 173.950 4 160.000 160.000 5 160.200 160.200 6 160.400 160.400 Use KPG-70D programming software for adjustment of the next items.
29 TK-7102 TK-260 : K, K2 Method Adjust to center frequency 25W 5W Adjust the wa veform as belo w ± 4.0kHz: Wide ± 2.0kHz: Narrow According to the large +,- Check ± 0.75kHz: Wide ± 0.35kHz: Narrow ± 0.75kHz: Wide ± 0.35kHz: Narrow ± 3.0kHz: Wide ± 1.
30 TK-7102 TK-260 : K, K2 BPF-Wave Fig. 1 ADJUSTMENT.
AB C DE F G H I J K L M N O PQ RS 1 3 4 5 6 7 8 9 10 11 12 13 14 2 TK-7102 PC BOARD VIEW 32 31 DISPLAY UNIT (X54-3340-20) Component side view + Foil side view .
AB C DE F G H I J K L M N O PQ RS 1 3 4 5 6 7 8 9 10 11 12 13 14 2 TK-7102 PC BOARD VIEW 34 33 TX-RX UNIT (X57-6290-20) Component side view J1 CN5 R331 C230 C307 C290 B E C Q42 C350 C345 C346 C513 C21.
AB C DE F G H I J K L M N O PQ RS 1 3 4 5 6 7 8 9 10 11 12 13 14 2 TK-7102 PC BOARD VIEW TX-RX UNIT (X57-6290-20) Foil side view 35 36 J72-0788-12 ANT L45 L44 L43 L42 L40 L39 D26 D31 C244 C213 C206 C1.
AB C DE F G H I J K L M N O PQ RS 1 3 4 5 6 7 8 9 10 11 12 13 14 2 TK-7102 PC BOARD VIEW TX-RX UNIT (X57-6290-20) Component side view + Foil side view 37 38 ANT L45 L44 L43 L42 L40 L39 D26 D31 C244 C2.
Note : Component marked with a dot ( ● ) are parts of pattern1. A B C D E F G I H J K L M O N P Q S R 1 2 3 4 5 6 7 SCHEMA TIC DIAGRAM TK-7102.
46 LEVEL DIAGRAM RX section TX section BLOCK DIAGRAM TK-7102 TK-7102 TK-7102 TK-7102 43 45 44.
46 LEVEL DIAGRAM RX section TX section BLOCK DIAGRAM TK-7102 TK-7102 TK-7102 TK-7102 43 45 44.
TK - 7 102 TK - 7 102 2 2 47 CONTENTS / GENERAL GENERAL INTRODUCTION SCOPE␣ OF␣ THIS␣ MANUAL This manual is intended for use by experienced techni- cians familiar with similar types of commercial grade com- munications equipment. It contains all required service in- formation for the equipment and is current as of this publica- tion date.
TK - 7 102 TK - 7 102 © 2001-5 PRINTED IN JAPAN B51-8584-00 ( S ) 283 VHF FM TRANSCEIVER T K-71 0 2 SER VICE MANU AL Panel assy (A62-0942-03) Front glass (B10-2668-03) Cabinet (A01-2178-02) Key top (K29-9065-01) SPECIFICA TIONS GENERAL Frequency Range .
An important point after buying a device Kenwood TK-7102 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Kenwood TK-7102 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Kenwood TK-7102 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Kenwood TK-7102 you will learn all the available features of the product, as well as information on its operation. The information that you get Kenwood TK-7102 will certainly help you make a decision on the purchase.
If you already are a holder of Kenwood TK-7102, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Kenwood TK-7102.
However, one of the most important roles played by the user manual is to help in solving problems with Kenwood TK-7102. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Kenwood TK-7102 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
