Kenwood UBZ-LJ8 SPECIFICATIONS

UBZ-LJ8

2

5

z

6

RF : X57-6672-70 (B/2)

Shielding Case (VCO)

D1

SHIFT

HVC

131

Q1

SW

DTC

114EE

F.CONT

D2

LV

1SV

270

VR1

MOD.CONT

D3

MOD

BLOCK DIAGRAM

TX : 446.00625MHz~446.09375MHz

RX : 424.30625MHz~424.39375MHz

Q4

BUFF

2SC

5108

(Y)

3C 3C

Q3
RIPPLE
FILTER

TX/RX

IC1 PLL

TB31202FN

21.25
MHz

CP,DP,STB

1SV

214

LPF

Q2

VCO

2SC

5066

(O)

2SC

4617

(S)

3C

X1

TCXO

VR3

F. CONT

Q6

RF AMP

2SC

5108

(Y)

3C

CLK 21.25MHz

Q5

RF AMP

2SC

5108

(Y)

3C

Q14

RF AMP

2SC

5108

(Y)

3T

Q13

AF AMP

2SC
4738
(GR)

IC2 IF AMP, FM DET

3R

AFO

D11

DET

RB706

F-40

TA31136FN

CF1

450kHz

CERAMIC

FILTER

450kHz

BUSY

Quad

Coil

L36

RX : 424.30

Q11

IF AMP

KTC

4082

R

CONTROL : X57-6672-70 (A/2)

AT24C01

IC210

EEPROM

LED

POWER

MODE

UP

DOWN

PTT

BATTERY

4.5V

(3.4V~5.0V)

3M

Q213

SW

DTC

114EE

LCD

A10SI18

F200

FUSE

F53-0217-05

CS,CP,DP

SCLK

X201

3.633MHz

DO

IC208

MPU

M38C24M6502HP

CTCSS_IN

VD RESET

BD47

24G

IC 202

VOLT DET

BD47

IC206

30G

VOLT
DET

3C

MOD

SP_AMP,SP_MUT,BEEP,C_3MS,SCLK
C_3R,C_3C,C_3T,CTCSS_OUT,MIC_MUT

PTT,UL,BUSY,REM

Q211

3M

SW
DTA

123JE

C_3MS

DTA

123JE

C_3R

IC207
AVR 3V

3MS

Q212

SW

3R

Q215

SW

MIC

DTA

3C

123JE

C_3C

Q210

SW

DTA

3T

123JE

B

C_3T

VCC

TK
71530
ASCL

UL

CP,DP,TSTB,TRST

IC204

MIC AMP

TC75
S51F

D202

DET

2SC

DAN

4919

Q200

AGC

MUT

222

MIC

B,3R,3C,3T

IC211
DET

2100V

BEEP

PRE-

EMPHA-

MA
742

D204

AGC

DET

NJM

SIS

2SC
4738
(GR)

Q201
AMP

AFO

RXA1

VR3

–4~+3.5/0.5dB

TXA1

–6~+4.5/1.5dB

MA
742

D203

DET

VR1

VOX

RX LPF

3MS

RX

TX

SW

SCLK

3.633MH

30

BLOCK DIAGRAM

UBZ-LJ8

Q7

RF AMP

2SC

5092

3T

: 424.30625MHz~424.39375MHz

Q11

IF AMP

KTC

4082

XF1

MCF

21.7MHz
MIXER

RF AMP

2SK

3656

3SK

318

Q10

Q8

P. CONT

3T

VR4

Q9

RF AMP

3SK

318

L31

BPF

446MHz

D8,D10

ANT SW

HVC131
HSC277

LPF

ANT

TX/RX FREQUENCY

446.00625MHz~

446.09375MHz

RX

TX

SW

SCLK

3.633MHz

SCRAMBLER/
DE-SCRAMBLER

fc=
300Hz

PASS

BY-

SW

SW

RX

TX

IC209 BASEBAND IC

VR4

–4.5~+4.5/1.5dB

VR2

–9.2~+3.0/0.2dB

SPLAT-

TER

FILTER

fc=

2.55kHz

CTCSS_OUT

AK2346

RXA2

SMF

LPF

DE-

EMPHA-

SIS

MOD

MOD

VR201

AF VR

B

Q220

SW

IC203

AF AMP

LM48

65M

2SA

1362

(GR)

2SC

4617

(S)

SP_AMP

Q216

SW

SP_MUT

Q217,Q219

BTL SW

CPH3413
2SK1824

SP_MUT

Q218

AF SW

CPH

3413

BTL_IN

REM

3MS

MIC

PTT

SP

EXT. SP

J200

EXT. MIC

MIC

MIC200

31