Kenwood TK-480 User Manual

Document CopyrightsCopyright 2006 by Kenwood Corporation. All rights reserved.No part of this manual may be reproduced, translated, distributed, or tr

9TK-480/481 Status 80~99 (Special)Status numbers from 80 to 99 are reserved for specialpurposes. Entering these statuses from the DTMF keypadcan be

10TK-480/481 Number of RetriesNumber of Retries is the maximum number of retrytransmission when no acknowledgement is received in theMaximum ACK Wait

11TK-480/4817-16. Intercept ToneThis tone indicates that the transceiver is out of range. Itindicates that the PTT button is pressed, and transmissio

12TK-480/481REALIGNMENT5. PC Mode5-1. PrefaceThe TK-480/481 transceiver is programmed by using apersonal computer, programming interface (KPG-36) andp

13TK-480/481REALIGNMENTCloning cable(E30-3325-05)Fig. 2Notes:• To start the Firmware Programmer from KPG-49D, theFpro path must be set up by KPG-49D S

14TK-480/4811. OverviewThis transceiver is an 800/900MHz band EFJ LTR™trunked system compatible FM portable transceiver that canbe programmed to opera

15TK-480/481CIRCUIT DESCRIPTION3-3. Audio amplifier circuitThe demodulated signal from IC9 is amplified by IC8 (2/2), high-pass filtered, low-pass fil

16TK-480/481CIRCUIT DESCRIPTIONFig. 6 Microphone amplifierFig. 7 Drive and final amplifier and APC circuitHPF ALCCOMP LPF HPF151618SW19DTMF98IC1212LIM

17TK-480/481CIRCUIT DESCRIPTIONFig. 8 PLL block diagram6. Control CircuitThe control circuit consists of microprocessor (IC15) andits peripheral circu

18TK-480/481CIRCUIT DESCRIPTION6-2. Low battery warningThe battery voltage is monitored by the microprocessor(IC15). When the battery voltage falls be

© 2001-3 PRINTED IN JAPANB51-8408-20 (N) 1015800MHz/900MHz FM TRANSCEIVERTK-480/481SERVICE MANUALGENERAL ...

19TK-480/481CIRCUIT DESCRIPTION7-2. Decode• Low-speed data (QT,DQT,LTR)The demodulated signal from the IF IC (IC9) is amplifiedby IC8 (1/2) and passes

20TK-480/481SEMICONDUCTOR DATA Pin functionPin No. Port name I/O Function1 LSDOUT O Low speed data output.2 HSDOUT O High speed data output.3 HSDIN I

21TK-480/481Shift Register 1 : BU4094BCFV (TX-RX Unit IC18)Pin No.PortPort nameFunction1 STRB ES Strobe2 DATA DAT Data3 CLK CK Clock4 Q1 LEDR Red LED.

22TK-480/481SEMICONDUCTOR DATAPLL System : SA7025DK (TX-RX Unit IC11) Block diagram Pin descriptionPin No.Symbol Description1 CLOCK Serial clock inp

23TK-480/481DESCRIPTION OF COMPONENTSDISPLAY UNIT (X54-3210-XX)Ref. No.Use/ FunctionOperation/ConditionIC300 IC Audio power amplifierIC301 IC Counter

TK-480/481PARTS LIST24A : TK-480 (K,K2)B : TK-481 (K,K2)✽ New Parts. indicates safety critical components.Parts without Parts No. are not supplied.L

TK-480/481PARTS LIST25A : TK-480 (K,K2)B : TK-481 (K,K2)R300 RK73GB1J103J CHIP R 10K J 1/16WR301 RK73FB2A101J CHIP R 100 J 1/10WR302 RK73GB1J470J CHIP

TK-480/481PARTS LIST26A : TK-480 (K,K2)B : TK-481 (K,K2)C74 CK73GB1C104K CHIP C 0.10UF KC75 CK73GB1C333K CHIP C 0.033UF KC76 CK73GB1C104K CHIP C 0.10U

TK-480/481PARTS LIST27A : TK-480 (K,K2)B : TK-481 (K,K2)CN3 E40-5890-05 FLAT CABLE CONNECTOR (24P)CN4-9 E23-1002-05 TERMINALCN10 E23-0342-05 TEST TERM

TK-480/481PARTS LIST28A : TK-480 (K,K2)B : TK-481 (K,K2)R55 RN73GH1J913D CHIP R 91K D 1/16WR56 RK73GB1J223J CHIP R 22K J 1/16WR57 RK73GB1J334J CHIP R

2TK-480/481GENERAL / SYSTEM SET-UPINTRODUCTIONSCOPE OF THIS MANUALThis manual is intended for use by experienced techni-cians familiar with similar ty

TK-480/481PARTS LIST29A : TK-480 (K,K2)B : TK-481 (K,K2)R419-422 R92-1252-05 CHIP R 0 OHMR423 RK73GB1J473J CHIP R 47K J 1/16WD1 1SR154-400 DIODED2 MA2

30TK-480/481EXPLODED VIEWAB123A : N14-0569-04B M2.6 x 5 : N30-2605-46C M2.6 x 10 : N30-2610-46D M2.6 x 6 : N67-2606-46E M2 x 5 : N83-2005-46F M2 x 2.

31TK-480/481PACKINGCD12350 Battery assy (W09-0900-35)Insulation sheet28 Packing fixture (H12-3014-02)47 Whip antenna (T90-0636-25) :

32TK-480/481ADJUSTMENTTest Equipment Required for AlignmentTest Equipment Major Specifications1. Standard Signal Generator Frequency Range 800 to 950M

33TK-480/481ADJUSTMENTRepair Jig (Chassis)Use jig (part No. : W05-0825-00) for repairing the TK-480/481.The jig facilitates the voltage check and prot

34TK-480/481ADJUSTMENTTest Mode Test mode operating featuresThis transceiver has a test mode. To enter test mode,press [A] key and turn power on. Hol

35TK-480/481 Tuning modeADJUSTMENTFREQ1Adjustment (1~256)Adjustment itemPanel test modeSystem/Group No.FREQ : Frequency adj.HPOW : High powerTHPW : H

ADJUSTMENTMeasurementTest-equipmentUnit TerminalAdjustmentUnit Parts MethodSpecifications/RemarksConditionItem36TK-480/4811. Frequency 1) SYS – GRP :

37ADJUSTMENTMeasurementTest-equipmentUnit TerminalAdjustmentUnit Parts MethodSpecifications/RemarksConditionItemTK-480/4819. DQT BAL 1) SYS – GRP : 4

ADJUSTMENTMeasurementTest-equipmentUnit TerminalAdjustmentUnit Parts MethodSpecifications/RemarksConditionItem38TK-480/48115. QT DEV 1) SYS – GRP : 4

3TK-480/481OPERATING FEATURES1. Operation FeaturesThe TK-480/481 is an 800/900MHz band EFJ LTR™-com-patible trunked radio designed to operate in both

39ADJUSTMENTMeasurementTest-equipmentUnit TerminalAdjustmentUnit Parts MethodSpecifications/RemarksConditionItemTK-480/4811. Sensitivity 1) SYS – GRP

40TK-480/481CN No. Pin No.Name I/O FunctionTX-RX UNIT (X57-5630-XX) : TX-RX sectionCN1 1 B OPower input after passing through the fuse.2B OPower input

SRQPONMLKJIHGFEDCBA1234567891011121314C338S301MONS302PTTS303LAMPJ72-0517-22C330C337C329C336C316C317CN30212SP–SP+LCD ASSYC369#D310D3080852BD306D305AD30

A B C D E F G H I J K L M N O P Q R S1234567891011121314CN300R306D320Q301R314R318Q308R325R324CP300C340R331R332C318L302C312R315C307Q310C343AMSB5M13 461

SRQPONMLKJIHGFEDCBA1234567891011121314CN300R306D320Q301R314R318Q308R325R324CP300C340R331R332C318L302C312R315C307Q310C343AMSB5M134613 46GSD124SBMELGAUX

A B C D E F G H I J K L M N O P Q R S1234567891011121314GNDD2OPTLOKRXEMAIRXDAUXRXDSBSQD15CAACRXWMAOTXDAUXTXDAUDIOBEEPMONILAMPDEODI9RXAORXAIPTTOUTTXAOP

SRQPONMLKJIHGFEDCBA1234567891011121314C13C38C30 C31IC6C20CN12CN4CN11Q4Q14Q13D 4D5Q6R36R130R132R133R135R101R170R169R167R168R158CN5R151R96R94R100R91C198

A B C D E F G H I J K L M N O P Q R S1234567891011121314GNDD2OPTLOKRXEMAIRXDAUXRXDSBSQD15CAACRXWMAOTXDAUXTXDAUDIOBEEPMONILAMPDEODI9RXAORXAIPTTOUTTXAOP

56TRPNLJHFDBSQOMKIGECA1357246SCHEMATIC DIAGRAM TK-480/481Note : Components marked with a dot (·) are parts of pattern 1.

TK-480/481TK-480/48157BLOCK DIAGRAM

4TK-480/481OPERATING FEATURES Auto TELAutomatically connects available repeaters that are con-nected to telephone circuits when operating as LTR syst

59TK-480/481LEVEL DIAGRAM (TK-480)RX SectionVCOIC14*C131PLLQ10C136Q17C193Q11D5C149Q12C152PowermoduleD7 C169L30ANT2.5W–11.7dBm(Q10 open)–7.8dBm(Q17 ope

60TK-480/481LEVEL DIAGRAM (TK-481)VCOIC14*C131PLLQ10C136Q17C193Q11D5C149Q12C152PowermoduleD7 C169L30ANT2.5W–10.2dBm(Q10 open)–7.4dBm(Q17 open)–0.4dBm(

61TK-480/481KNB-16A/17A (Ni-Cd BATTERY) /KPG-36 (PROGRAMMING INTERFACE CABLE) / KSC-19 (CHARGER)KNB-16A KNB-17AExternal View External ViewKNB-16A Spec

62TK-480/481SPECIFICATIONSGeneralFrequency RangeRX ... TK-480 : 851 to 870MHz TK-481 : 935 to 9

63TK-480/481

TK-480/481KENWOOD CORPORATION14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo 150-8501, JapanKENWOOD SERVICE CORPORATIONP.O. BOX 22745, 2201 East Dominguez

5TK-480/481OPERATING FEATURES System up/downWhen the key is pressed each time, the system numberto be selected is incremented/decremented and repeats

6TK-480/481OPERATING FEATURESTo unlock a system, select the system and press the key.The Delete () indicator disappears to indicate that the sys-tem h

7TK-480/481OPERATING FEATURES4-5. Radio passwordWhen the password is set in the transceiver, user can notuse the transceiver unless enter the correct

8TK-480/481OPERATING FEATURES5. Option Signalling5-1. DTMFBuilt-in DTMF decoder is available for option signalling.It is possible to use individual ca