Kenwood TK-270G PC Board View TK-260G/270G, Display Unit X54-3250-10 Component Side View

Page 41

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DISPLAY UNIT (X54-3250-10) Component Side View

PC BOARD VIEW TK-260G/270G

DISPLAY UNIT (X54-3250-10) Foil Side View

1

2

DISPLAY UNIT (X54-3250-10)

Component Side View

DISPLAY UNIT (X54-3250-10) Foil Side View

Ref. NO.

Address

IC501

4E

 

 

Q501

4H

 

 

Q502

4G

 

 

D501

4D

 

 

D502

5F

 

 

D503

5F

 

 

D504

5F

 

 

D505

4D

 

 

D506

4H

 

 

D507

4G

 

 

D508

8G

 

 

D509

9G

 

 

D510

10G

 

 

D511

4C

 

 

D512

8D

 

 

D513

9D

 

 

D514

10D

 

 

D515

7G

 

 

D516

7D

D511

LCD

 

 

D506

D516

D515

R518

 

 

L502

 

 

E

 

C515

C Q502

 

C516

R522

 

B

D507

Q501

 

 

D504 C509

C508

D503

R509

R510

R524

16

1

 

 

 

 

 

 

17

 

 

64

 

 

 

 

 

 

 

R511

R516

C513

R515

R513

 

IC501

 

R514

 

 

 

 

 

 

R517

 

 

 

 

32

 

 

49

 

 

 

 

 

 

D501

D505

 

 

CP501

33

48

 

 

 

 

 

 

 

 

 

 

 

 

 

L501

C501

R501

 

 

D502

C506

 

 

 

 

 

 

 

 

 

C507

 

 

 

 

 

 

 

R508

 

 

 

 

 

 

 

 

 

 

R507

 

 

 

 

 

 

 

 

 

 

 

CP502

 

 

 

 

 

 

 

R502

 

 

 

 

 

 

 

C502

 

CP503

 

 

 

 

 

 

 

 

 

 

 

R512

 

 

 

 

 

 

 

 

16

 

Ref. NO.

Address

IC501

4N

Q501

4K

Q502

4L

D501

4O

D502

5M

D503

5M

D504

5M

D505

4O

D506

4K

D507

4L

D508

8L

D509

9L

D510

10L

D511

4P

D512

8O

D513

9O

D514

10O

D515

7L

D516

7O

 

 

3

4

5

6

7

1

2

3

A

 

D512

 

D508

4

5

6

B

 

D513

 

 

 

 

 

D509

R519

R521

R520

C505

 

 

 

 

 

 

 

 

 

CE

 

 

 

 

 

 

 

 

C503

 

 

 

 

5M

 

 

 

 

 

 

 

 

 

 

 

 

DI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CL

 

 

 

 

 

 

 

 

R503

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

LMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KIN0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KIN1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KIN2

 

 

 

 

 

 

 

 

 

 

 

 

 

CN501

 

 

 

 

 

 

 

 

KIN3

 

 

 

 

 

 

 

 

KIN4

 

 

 

 

 

 

 

 

KOUT0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KOUT1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KOUT2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KOUT3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SB

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R504

 

 

 

 

 

 

C504

R505

 

 

R523

 

R506

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2SC4617(S)

B

E

C

2SB1132(Q,R)

8

9

Component Side

Foil Side

78

D514

0

J72-0663-02

9

 

C

C

E

 

 

B

10

 

D510

LC75823W

 

 

 

 

 

 

#

 

D

 

11

 

 

 

LED d i r e c t i o n

12

 

Component Side

Foil Side

13

 

 

 

41

42

14

Image 41
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 Separating the chassis from the unit TK-260G Disassembly for RepairSeparating the case assembly from the chassis Receiver Frequency configurationCircuit Description PLL frequency synthesizer Encode signaling Power supplyTransmitter System Microphone amplifierOptional Board Terminal Control CircuitLCD Driver LC75823W Display Unit IC501 TK-270G only Circuit DESCRIPTION/SEMICONDUCTOR DataUPB1509GV IC301 Microprocesser 30622M4102GP TX-RX Unit IC13 Semiconductor DataShift register 1BU4094BCFVIC5 Shift register 2BU4094BCFVIC6TX-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