Kenwood TK-260G, TK-270G service manual Operating Features, Operation Features

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TK-260G/270G

OPERATING FEATURES

1. Operation Features

causes an error tone to sound. (When changing a channel from high to low power, all channels programmed with high power are changed to low.)

TK-260G

Channel selector Rotate to select a channel (1 ~ 8).

Antenna

Power switch/ Volume control Turn clockwise to switch ON the transceiver. Rotate to adjust

2-Tone Encode Select: To transmit using a 2-Tone code, press the PTT switch and the 2-Tone Encode Select key, then speak into the microphone in your normal voice.

Release the PTT switch and 2-Tone Encode Select key to receive.

LED indicator Lights red while transmitting. Lights green while receiving. Flashes orange while receiving a 2-Tone or DTMF signal that matches the one set up in your transceiver. Flashes red when the battery power is low while transmitting.

PTT (Push-to- Talk) switch Press this switch, then speak into the microphone to call a station.

the volume. To switch OFF the transceiver, turn counterclockwise fully.

Microphone

Speaker

SP/MIC jacks

TK-270G

Antenna

Speaker

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t

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qwe

Microphone

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1 2 3 A

4 5 6 B

7 8 9 C

0 D

Side 1 key Press to activate its programmable function.

Side 2 key Press to activate its programmable function.

Connect an optional speaker/ microphone here.

The transceiver is shown with the optional KNB-14 battery pack.

The transceiver is shown with the optional KNB-14 battery pack.

q Rotary encoder

Your dealer can program the encoder as either

Group Up/Down or Channel Up/Down (default

setting). Rotate to select a group or channel. Also

rotate to adjust the squelch in Squelch Adjustment

mode.

Programmable Auxiliary Functions

Side 1 key and Side 2 key can each be programmed with one of the following auxiliary functions:

Monitor A (Monitor Unmute–Momentary): Press and hold the Monitor key to hear background noise. Release the key to return to normal operation.

Monitor B (Monitor Unmute–Toggle): Momentarily press the Monitor key to hear background noise. Press the key again to return to normal operation.

Monitor C (Carrier Squelch–Momentary): Press and hold the Monitor key to deactivate QT, DQT, 2-Tone, or DTMF signalling. Release the key to return to normal operation.

Monitor D (Carrier Squelch–Toggle): Momentarily press the Monitor key to deactivate QT, DQT, 2-Tone, or DTMF signalling. Press the key again to return to normal operation.

None: No function.

RF Power Lo: Press the RF Power Lo key to toggle the output power of a channel between high and low. This can only be used for channels that have been programmed with high power. Pressing RF Power Lo while using a channel programmed with low power

wLED indicator

Lights red while transmitting. Lights green while receiving. Flashes orange while receiving a Code Squelch code or a Selective Call code, or a 2-Tone or DTMF signal that matches the one set up in your transceiver. Flashes red when the battery power is low while transmitting.

ePower switch/ Volume control

Turn clockwise to switch ON the transceiver. Rotate to adjust the volume. To switch OFF the transceiver, turn counterclockwise fully.

rPTT (Push-to-Talk) switch

Press this switch, then speak into the microphone to call a station.

tSide 1 key

This is a PF (Programmable Function) key. Press it to activate its auxiliary function (page 4).

ySide 2 key

This is a PF (Programmable Function) key. Press it to activate its auxiliary function (page 4).

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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 Disassembly for Repair Separating the case assembly from the chassisSeparating the chassis from the unit TK-260G Frequency configuration Circuit DescriptionReceiver PLL frequency synthesizer Microphone amplifier Power supplyEncode signaling Transmitter SystemOptional Board Terminal Control CircuitCircuit DESCRIPTION/SEMICONDUCTOR Data UPB1509GV IC301LCD Driver LC75823W Display Unit IC501 TK-270G only Shift register 2BU4094BCFVIC6 Semiconductor DataMicroprocesser 30622M4102GP TX-RX Unit IC13 Shift register 1BU4094BCFVIC5Description of Components Display Unit X54-3250-10 TK-270G OnlyTX-RX Unit 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/270GAdjustment Test Equipment Required for AlignmentRepair Jig Chassis Test Mode TK-270G only Test mode operating featuresRepair Jig Extention Flat cable part No E37-0851-05 LCD display Tuning mode Wide/Narrow indicator Panel Tuning ModeTuning mode Transmitter Section Common SectionAF Vtvm Hpfoff Ptton Dtmf BPF-WAVE Foil Side View Adjustment points TX-RX unit X57-587 Component side viewPC Board View TK-260G/270G Display Unit X54-3250-10 Component Side ViewDisplay Unit X54-3250-10 Foil Side View PC Board View DTA114EE TK-260G/270G PC Board View TK-260G TK-270GSCHEMATIC Diagram Block Diagram Level Diagram KNB-14KNB-15A KMC-17 Speaker microphone KMC-17 Parts List KMC-21 Speaker microphone KMC-21 Parts ListOptions General Specification