Kenwood TK-260G, TK-270G service manual Block Diagram

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TK-260G/270G TK-260G/270G

BLOCK DIAGRAM


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Contents TK-260G/270G ContentsGeneral / System SET-UP TK-260G/270GOperation Features Operating FeaturesSP/MIC jacks Programmable keys3 keys Dtmf keypadScan types Display TK-270G onlyScan Operating TK-270G only Icon DescriptionDetails of Features Option Signalling DTMF/2 tone Audible user feedback tones Operating Features / RealignmentHow to Enter Each Mode For the panel Test Mode TK-270G onlyChecksum PC ModeFirmware Programming Mode RealignmentFunction Clone ModeFlow Chart Self Programming Mode TK-270G onlySelf programming mode setting Channel Setting ModeADD DtmfTone DeleteFunction Setting Mode Function Setting ModeCttno YES/NOTOT YES CttyesMemory Reset Mode Separating the chassis from the unit TK-260G Disassembly for RepairSeparating the case assembly from the chassis Receiver Frequency configurationCircuit Description PLL frequency synthesizer Microphone amplifier Power supplyEncode signaling Transmitter SystemOptional Board Terminal Control CircuitLCD Driver LC75823W Display Unit IC501 TK-270G only Circuit DESCRIPTION/SEMICONDUCTOR DataUPB1509GV IC301 Shift register 2BU4094BCFVIC6 Semiconductor DataMicroprocesser 30622M4102GP TX-RX Unit IC13 Shift register 1BU4094BCFVIC5TX-RX Unit Description of ComponentsDisplay Unit X54-3250-10 TK-270G Only TK-260G/270G Parts ListTX-RX Unit Ceramic Trimmer CAP10P CN1 Coil R92 RK73GB1J100J VR1 Exploded View TK-260G Exploded View TK-270G Packing TK-260G/270GRepair Jig Chassis AdjustmentTest Equipment Required for Alignment Repair Jig Extention Flat cable part No E37-0851-05 Test Mode TK-270G onlyTest mode operating features Tuning mode LCD display Tuning mode Wide/Narrow indicatorPanel Tuning Mode Transmitter Section Common SectionAF Vtvm Hpfoff Ptton Dtmf BPF-WAVE Foil Side View Adjustment points TX-RX unit X57-587 Component side viewDisplay Unit X54-3250-10 Foil Side View PC Board View TK-260G/270GDisplay Unit X54-3250-10 Component Side View PC Board View DTA114EE TK-260G/270G PC Board View TK-260G TK-270GSCHEMATIC Diagram Block Diagram KNB-15A Level DiagramKNB-14 Options KMC-17 Speaker microphone KMC-17 Parts ListKMC-21 Speaker microphone KMC-21 Parts List General Specification