Kenwood TK-270G, TK-260G service manual Specification, General

Page 50

TK-260G/270G

 

SPECIFICATION

General

 

Frequency Range

150~174MHz

Number of channels

Max. 8 (TK-260G) Max. 128 (TK-270G)

Number of groups

Max. 128 (TK-270G)

Channel Spacing

25kHz, 30kHz (Wide) 12.5kHz, 15kHz (Narrow)

PLL Step

2.5kHz, 5kHz, 6.25kHz, 7.5kHz

Operating Voltage

7.5 VDC

Battery Life

More than 8 hours at 5 watts (5-5-90 duty cycle with KNB-15A battery)

Operating Temperature renge

-30˚C to +60˚C (-22 ˚F to +140 ˚F)

Dimensions and Weight

 

With KNB-14 (7.2V 600mAh battery)

58 (2-5/16) W x 135 (5-5/16) H x 32 (1-1/4) D mm (in)

 

400g (0.88lbs)

With KNB-15A (7.2V 1100mAh battery)

58 (2-5/16) W x 135 (5-5/16) H x 35 (1-3/8) D mm (in)

 

440g (0.97lbs)

Receiver (Measurements made per EIA standard EIA-RS316B)

Sensitivity

 

EIA 12dB SINAD

0.25V (Wide)/0.28V (Narrow)

Selectivity

70dB (Wide)/65dB (Narrow)

Intermodulation

65dB (Wide)/60dB (Narrow)

Spurious responce

65dB

Audio Power Output

500mW

Frequency Stability

±3ppm

Channel Frequency Spread

24MHz

Transmitter (Measurements made per EIA standard EIA-RS 316B)

RF Power output

5W/1W

Spurious and Harmonics

70dB

Modulation

16KφF3E (Wide)/11KφF3E (Narrow)

FM Noise

-45dB (Wide)/-43dB (Narrow)

Audio Distortion

Less than 5%

Frequency Stability

±3ppm

Channel Frequency Spread

24MHz

KENWOOD CORPORATION

14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo 150-8501, Japan

KENWOOD SERVICE CORPORATION

P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745, U.S.A.

KENWOOD ELECTRONICS LATIN AMERICA S.A.

P.O. BOX 55-2791 Piso 6 Plaza Chase Cl, 47 y Aquilino de la Guardio Panama, Republic of Panama

KENWOOD ELECTRONICS CANADA INC.

6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD ELECTRONICS DEUTSCHLAND GMBH

Rembrücker Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS BELGIUM N.V.

Mechelsesteenweg 418 B-1930 Zaventem, Belgium

KENWOOD ELECTRONICS FRANCE S.A.

13, Boulevard Ney, 75018 Paris, France

KENWOOD ELECTRONICS U.K. LIMITED

KENWOOD House, Dwight Road, Watford, Herst., WD1 8EB United Kingdom

KENWOOD ELECTRONICS EUROPE B.V.

Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

KENWOOD ELECTRONICS ITALIA S.p.A.

Via G. Sirtori, 7/9 20129 Milano, Italy

KENWOOD IBERICA S.A.

Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.

(A.C.N. 001 499 074)

P.O. Box 504, 8 Figtree Drive, Australia Centre, Homebush, N.S.W. 2140, Australia

KENWOOD ELECTRONICS (HONG KONG) LTD.

Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong

KENWOOD ELECTRONICS TECHNOLOGIES(S) PTE LTD.

Sales Marketing Division

1 Ang Mo Kio Street 63, Singapore 569110

Image 50
Contents Contents TK-260G/270GTK-260G/270G General / System SET-UPOperating Features Operation FeaturesDtmf keypad Programmable keys3 keys SP/MIC jacksIcon Description Display TK-270G onlyScan Operating TK-270G only Scan typesDetails of Features Option Signalling DTMF/2 tone For the panel Test Mode TK-270G only Operating Features / RealignmentHow to Enter Each Mode Audible user feedback tonesRealignment PC ModeFirmware Programming Mode ChecksumClone Mode FunctionChannel Setting Mode Self Programming Mode TK-270G onlySelf programming mode setting Flow ChartDelete DtmfTone ADDFunction Setting Mode Function Setting ModeYES Cttyes YES/NOTOT CttnoMemory 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 Transmitter System Power supplyEncode signaling Microphone amplifierControl Circuit Optional Board TerminalLCD Driver LC75823W Display Unit IC501 TK-270G only Circuit DESCRIPTION/SEMICONDUCTOR DataUPB1509GV IC301 Shift register 1BU4094BCFVIC5 Semiconductor DataMicroprocesser 30622M4102GP TX-RX Unit IC13 Shift register 2BU4094BCFVIC6TX-RX Unit Description of ComponentsDisplay Unit X54-3250-10 TK-270G Only Parts List TK-260G/270GTX-RX Unit Ceramic Trimmer CAP10P CN1 Coil R92 RK73GB1J100J VR1 Exploded View TK-260G Exploded View TK-270G TK-260G/270G PackingRepair 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 Common Section Transmitter SectionAF Vtvm Hpfoff Ptton Dtmf BPF-WAVE Adjustment points TX-RX unit X57-587 Component side view Foil 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 Specification General