Block Diagram - Kenwood UBZ-LJ8 Service Manual

UBZ-LJ8
RF : X57-6672-70 (B/2)
Shielding Case (VCO)
D1
SHIFT
HVC
131
Q1
SW
DTC
114EE
CONTROL : X57-6672-70 (A/2)
AT24C01
IC210
A10SI18
EEPROM
3M
Q213
SW
DTC
114EE
LED
POWER
MODE
UP
DOWN
PTT
LCD
BATTERY
4.5V F200
FUSE
(3.4V~5.0V)
F53-0217-05
30

BLOCK DIAGRAM

D3
D2
F.CONT MOD
1SV
1SV
214
270
LPF
LV
VR1
MOD.CONT
MOD
CS,CP,DP
SCLK
X201
3.633MHz
DO
IC208
SP_AMP,SP_MUT,BEEP,C_3MS,SCLK
MPU
C_3R,C_3C,C_3T,CTCSS_OUT,MIC_MUT
M38C24M6502HP
CTCSS_IN
PTT,UL,BUSY,REM
Q211
SW
VD RESET VCC
DTA
123JE
BD47
C_3MS
24G
Q212
IC 202
DTA
VOLT DET
123JE
3M
TK
BD47
C_3R
IC206
71530
30G
VOLT ASCL IC207
AVR 3V
DET
TX : 446.00625MHz~446.09375MHz
RX : 424.30625MHz~424.39375MHz
Q2 Q4
Q6
VCO BUFF
RF AMP
2SC 2SC
2SC
5108
5066 5108
(O) (Y) (Y)
3C 3C
Q3
2SC
RIPPLE
4617
(S)
FILTER
3C
RF AMP
TX/RX
IC1 PLL
TB31202FN
3C
21.25
X1
CLK 21.25MHz
MHz
TCXO
VR3
F. CONT
3C
UL
CP,DP,TSTB,TRST
IC204
MIC AMP
Q215
3MS
TC75
SW
MIC
S51F
DTA
3C
123JE
D202
DET
C_3C
SW
2SC DAN
Q210
4919
222
3R
SW
Q200
DTA
MIC
AGC
3T
123JE
MUT
B C_3T
Q14
RF AMP
2SC
5108
(Y)
3T
Q13
D11
AF AMP DET
2SC
RB706
4738
F-40
Q5
(GR)
2SC
IC2 IF AMP, FM DET
5108
TA31136FN
(Y)
3C
CF1
3R
Quad
450kHz 450kHz
CERAMIC
FILTER
AFO
RXA1
RX LPF
IC211
VR3
DET
–4~+3.5/0.5dB
NJM
2100V
BEEP
TXA1
PRE-
EMPHA-
SIS
VR1
–6~+4.5/1.5dB
MA
742
D204
2SC
MA
AGC
4738
VOX
742
(GR)
DET
D203
Q201
DET
AMP
R
2
5
RX : 424.306
BUSY
Q11
IF AMP
KTC
4082
Coil
L36
RX
TX
SW
3MS SCLK
3.633MHz