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

Page 45

A

1

2

3

4

5

6

7

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCHEMATIC DIAGRAM

 

TK-260G

Note) Component marked with a dot () are Parts of pattern 1.

Image 45
Contents TK-260G/270G ContentsGeneral / System SET-UP TK-260G/270GOperation Features Operating Features3 keys Programmable keysDtmf keypad SP/MIC jacksScan Operating TK-270G only Display TK-270G onlyIcon Description Scan typesDetails of Features Option Signalling DTMF/2 tone How to Enter Each Mode Operating Features / RealignmentFor the panel Test Mode TK-270G only Audible user feedback tonesFirmware Programming Mode PC ModeRealignment ChecksumFunction Clone ModeSelf programming mode setting Self Programming Mode TK-270G onlyChannel Setting Mode Flow ChartTone DtmfDelete ADDFunction Setting Mode Function Setting ModeTOT YES/NOYES Cttyes CttnoMemory 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 Encode signaling Power supplyTransmitter System Microphone amplifierOptional Board Terminal Control CircuitCircuit DESCRIPTION/SEMICONDUCTOR Data UPB1509GV IC301LCD Driver LC75823W Display Unit IC501 TK-270G only Microprocesser 30622M4102GP TX-RX Unit IC13 Semiconductor DataShift register 1BU4094BCFVIC5 Shift register 2BU4094BCFVIC6Description 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