Foil Side View | Kenwood TK-270G, TK-260G manual

TK-260G/270G

ADJUSTMENT

Adjustment points TX-RX unit (X57-587) Component side view

ANT

LV

VR1

C13 CN3

IC12

MIC IC14

BPF

MIC SP

Foil Side View

	MIC	SP
BPF
		L307
Battery terminal	L305	L306
	L305	L306

TC1

ANT

CV TC2

VR1 : Frequency adjustment	TC1 : Transmit lock voltage adjustment
	TC2 : Receive lock voltage adjustment
	L305:	} Band-pass filter waveform adjustment
	L307:L306:

BPF : Band-pass filter test point

CV(LV) : Lock voltage adjustment terminal.

Fig. 2 Adjustment points

40

Image 40

Kenwood TK-270G, TK-260G service manual Adjustment points TX-RX unit X57-587 Component side view, Foil Side View

Contents

Contents TK-260G/270G TK-260G/270G General / System SET-UP Operating Features Operation Features Programmable keys 3 keysDtmf keypad SP/MIC jacks Display TK-270G only Scan Operating TK-270G onlyIcon Description Scan types Details of Features Option Signalling DTMF/2 tone Operating Features / Realignment How to Enter Each ModeFor the panel Test Mode TK-270G only Audible user feedback tones PC Mode Firmware Programming ModeRealignment Checksum Clone Mode Function Self Programming Mode TK-270G only Self programming mode settingChannel Setting Mode Flow Chart Dtmf ToneDelete ADD Function Setting Mode Function Setting Mode YES/NO TOTYES Cttyes Cttno Memory Reset Mode Separating the case assembly from the chassis Disassembly for RepairSeparating the chassis from the unit TK-260G Circuit Description Frequency configurationReceiver PLL frequency synthesizer Power supply Encode signalingTransmitter System Microphone amplifier Control Circuit Optional Board Terminal UPB1509GV IC301 Circuit DESCRIPTION/SEMICONDUCTOR DataLCD Driver LC75823W Display Unit IC501 TK-270G only Semiconductor Data Microprocesser 30622M4102GP TX-RX Unit IC13Shift register 1BU4094BCFVIC5 Shift register 2BU4094BCFVIC6 Display Unit X54-3250-10 TK-270G Only Description of ComponentsTX-RX Unit Parts List TK-260G/270G TX-RX Unit Ceramic Trimmer CAP10P CN1 Coil R92 RK73GB1J100J VR1 Exploded View TK-260G Exploded View TK-270G TK-260G/270G Packing Test Equipment Required for Alignment AdjustmentRepair Jig Chassis Test mode operating features Test Mode TK-270G onlyRepair Jig Extention Flat cable part No E37-0851-05 Panel Tuning Mode LCD display Tuning mode Wide/Narrow indicatorTuning mode Common Section Transmitter Section AF Vtvm Hpfoff Ptton Dtmf BPF-WAVE Adjustment points TX-RX unit X57-587 Component side view Foil Side View Display Unit X54-3250-10 Component Side View PC Board View TK-260G/270GDisplay Unit X54-3250-10 Foil Side View PC Board View DTA114EE TK-260G/270G PC Board View TK-260G TK-270GSCHEMATIC Diagram Block Diagram KNB-14 Level DiagramKNB-15A KMC-21 Speaker microphone KMC-21 Parts List KMC-17 Speaker microphone KMC-17 Parts ListOptions Specification General