Kenwood TK-260G manuals
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When we buy new device such as Kenwood TK-260G we often through away most of the documentation but the warranty.
Very often issues with Kenwood TK-260G begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in DJ Equipment Kenwood TK-260G is responsible for and what options to choose for expected result.
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Kenwood TK-260G Service Manual
50 pages 4.16 Mb
VHF FM TRANSCEIVER TK-260G/270GM market models are shown. SERVICE MANUAL 2 TK-260G/270G6 TK-260G/270G8) Scan End 9) Temporarily Delete/Add 5. Details of Features1) Time-out timer 2) Selective Call Alert LED 3) PTT ID 3) Scan Stop Condition 4) Scan Channel Types 5) Priority Channel Setting 6) Scan Type According to the Priority Channel 7) Revert Channel 7 TK-260G/270G4) Battery Warning 5) "TOT" Pre-Alert 6) "TOT" Re-Key Time 7) "TOT" Reset Time 8) OST (Operator Selectable Tone) (TK-270G K types only) 9) Clear to Transpond 10) Battery Save 6. Option Signalling (DTMF/2 tone) 7. Audible user feedback tones 2. How to Enter Each Mode 1. Modes 8 OPERATING FEATURES / REALIGNMENTREALIGNMENT 3. For the panel Test Mode (TK-270G only)3-1. For the panel Tuning Mode 9 6. Firmware Programming ModeFig. 1 6-1. Preface 6-2. Connection procedure 6-3. Programming 4. Checksum 5.PC Mode5-1. Preface 5-2. Connection procedure 5-3. KPG-22 description (PC programming interface cable: Option) 5-4. Programming software description 5-5. Programming with IBM PC Fig. 2 6-4. Function 10 7. Clone Mode8-2. Channel Setting Mode Fig. 3[CH][CH] [CH] [3] [LAMP] [MON] 11 8. Self Programming Mode (TK-270G only)16 DISASSEMBLY FOR REPAIRSeparating the case assembly from the chassis. Separating the chassis from the unit. TK-260G TK-270G TK-270GFig. 3 Wide/Narrow changeover circuit 17 1. Frequency configurationFig. 2 Receiver section Fig. 1 Frequency configuration 1) Front end (RF AMP) 2) First mixer 2. Receiver3) IF Amplifier circuit 4) Wide/Narrow changeover circuit Fig. 4 AF Amplifier and Squelch Fig. 5 PLL circuit 5) Audio amplifier circuit 6) Squelch 7) Receive signaling 18 3. PLL frequency synthesizer1) PLL 2) VCO Fig. 7 Microphone amplifier Fig. 8 Drive and final amplifier and APC circuit 3) UNLOCK DETECTOR Fig. 6 Unlock detector circuit 19 4. Transmitter System1) Microphone amplifier 3) APC circuit 4) Encode signaling 5. Power supply2) Drive and Final amplifier 20 6. Control Circuit1) Frequency shift circuit Fig. 9 Memory circuit 2) Memory circuit 3) Low battery warning 7. Optional Board TerminalOptional Board Terminal Function (CN5) 21 CIRCUIT DESCRIPTION/SEMICONDUCTOR DATAFig. 10 Control system Pin Fanction 8. CONTROL SYSTEM SEMICONDUCTOR DATA LCD Driver : LC75823W (Display UNIT IC501) (TK-270G only) UPB1509GV (IC301) Pin connection diagram Block diagram 22 SEMICONDUCTOR DATAMicroprocesser : 30622M4102GP (TX-RX UNIT : IC13) Shift register 1:BU4094BCFV(IC5) Shift register 2:BU4094BCFV(IC6) 23 DESCRIPTION OF COMPONENTS26 TK-260G/270G260G : TK-260G (K),(M) M : TK-260G(M),TK-270G(M) K : TK-260G(K),TK-270G(K) 27 TK-260G/270G35 ( )39 fLfHfCAdjustment points TX-RX unit (X57-587) Component side view Foil Side View 40 }Fig. 2 Adjustment points 41 DISPLAY UNIT (X54-3250-10) Component Side ViewDISPLAY UNIT (X54-3250-10) Foil Side ViewLC75823W 0#D LEDJ72-0663-02 direction123A 456B 789CDISPLAY UNIT (X54-3250-10) Component Side View DISPLAY UNIT (X54-3250-10) Foil Side View 2SB1132(Q,R) TX RX UNIT (X57-5870-XX) Component Side View 42 B / 2NJM2904V AT2408SN10SI2.5 TA7368F UPA672T 2SK1588 Component Side View 30622M4102GP DTA144EE 2SA1362(GR) 2SC4619 2SK1824 X9C103SI AT29C020-90TI TC35453F BU4094BCFV TA73W01FU TC75W51FU LC73872M M68732H 43 TX RX UNIT (X57-5870-XX) Foil Side ViewECD UMC4 Foil Side View DTA114YE DTA144EE DTC144EE 2SC4226(R24) 2SC5108(Y) 2SC4649(N,P) 2SC4988 2SK508NV(K52) 3SK228 UPA572T 2SJ243 S-81350HG-KD PST9140NR RN5VL45C MB15A02 TA31136FN UMG3N FP210 B1 B2 C1 C2 44 TK-260G/270G TX RX UNIT (X57-5870-XX) Component Side + Foil Side View B / 2EC NJM2904V AT29C020-90TI TA7368F UPA572T 2SC4988 Component Side + Foil Side View DTA114YE DTA144EE DTC144EE 2SA1362(GR) 2SC4226(R24) 2SC4619 2SC5108(Y) 2SC4649(N,P) 30622M4102GP UMC4 2SK508NV(K52) 3SK228 2SK1588 UPA672T 2SJ243 2SK1824 S-81350HG-KD X9C103SI AT2408SN10SI2.5 TC35453F PST9140NR RN5VL45C MB15A02 BU4094BCFV TA73W01FU TC75W51FU FP210 TA31136FN LC73872M M68732H UMG3N 45 TK-260G 46 TK-270G KNB-14/KNB-15A (Ni-Cd BATTERY) LEVEL DIAGRAMpacitor. In the RF section, use a 1000pF coupling ca- nect the AC level meter. To make measurements in the AF section, con- at 1kHz MOD. (WIDE) AG is set to the MIC input becomes 3kHz DEV. quired to obtain 12dB SINAD Without Local Level.) tor. (The display shows the SSG input value re- In the RF section, use a 1000pF coupling capaci- 1kHz FM, 3kHz DEV(WIDE).) nect the AC level meter. (ANT input : -53dBm, To make measurements in the AF section, con- 48 TK-260G/270G TK-260G/270GKNB-15A CIRCUIT DIAGRAM SPECIFICATIONS KNB-14 CIRCUIT DIAGRAM SPECIFICATIONS 49 OPTIONSParts No. Description KMC-21 Parts List KMC-21 (Speaker microphone)Parts No. Description Ref. No. KMC-17 (Speaker microphone) KMC-17 Parts List General Receiver Transmitter 50 SPECIFICATIONKENWOOD CORPORATIONKENWOOD SERVICE CORPORATION KENWOOD ELECTRONICS LATIN AMERICA S.A. KENWOOD ELECTRONICS CANADA INC. KENWOOD ELECTRONICS DEUTSCHLAND GMBH KENWOOD ELECTRONICS BELGIUM N.V. KENWOOD ELECTRONICS FRANCE S.A. KENWOOD ELECTRONICS U.K. LIMITED KENWOOD ELECTRONICS EUROPE B.V. KENWOOD ELECTRONICS ITALIA S.p.A. KENWOOD IBERICA S.A. KENWOOD ELECTRONICS AUSTRALIA PTY. LTD. KENWOOD ELECTRONICS (HONG KONG) LTD. KENWOOD ELECTRONICS TECHNOLOGIES(S) PTE LTD.
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