Block Diagram - Kenwood TK-290 Service Manual

Fuse
+BATT
DISPLAY X53-393 B/6
Power SW
LCD Driver
LCD
PF1 IC101
LC75824W
PF2
TX,BUSY LED
Toggle SW
LAMP
CONTROL X53-393 A/6
MIC Amp
IC3
INT MIC
(Main)
NJM2904V
NCSW
INT MIC
(N/C)
SW
AF Amp ASW
SW SW
SP
ISW
MUT
SW
IC1
EXT
TDA7053AT
ESW
TK-290

BLOCK DIAGRAM

RF X57-539
Protect
Q2
-V VCO
2SJ144 D4
MA2S
D400 1SR154-400
SW
111
SB SW
IC10
KCH40
-SW
SB IC6
SW
-VC
LMC7101
Q415 2SJ517 LPF
BIM5 -10V
Q412 2SK1824
D405 (2/2)
IC4
MAX
Rect
Rect
DC-DC
865
1SS 1SS SBC
301 301 4C
+10V
LEVEL
RIPPLE
D405 (1/2)
SHIFT Q4
FILTER
TV
IC2
2SK 2SC
LMC7101
1824 4617
BIM5 CTV
MA2S
Q414 +B→5V
CLK
5M 111
D/A2
FC DI
M62354
-VC
LD
IC3
PC PC
Regulate
IC402
TK11250BM
SB 5M
mod
5TC 5T
SW SW
5V 5V
5CC 5C
Q401 Q402
SW
UPA572T FP210 5R
5RC
5V
Q400,405
UMG3N *2
Q406
DTA123JE
SB
CLKS
Regulate
SB
IC401
TK11250BM RESET
IC409
PST9132NR
Latch
Flash-ROM
Microprocessor
upc784214GC***8EU
IC415
TC7S02F
Adress
Data
IC414
EEPROM
AT29C020-90TI
CLK
DATA
IC412 AT2408N10SI2.5
TK-290
Drive Amp
TX/RX
SW
Buff Amp Buff Amp
Q6
2SC5110
Q3 Q5
SB
D602,D603
2SC4619 2SC4619
DAN235E *2
PLL
LPF
CURRENT
IC5
DET.
NJM2904V
SA7025DK
LPF
(1/2)
16.8MHz T/R
X1 Q7 DC
DTC114EE
SW
TCXO
SW SW
5C
D5 Q1
DAN235K DTA114EE
TO
5C
180.85~218.85MHz
D6
IC300
FM System IC
IF Amp
TA31136FN
44.85MHz
Q302
SQL 455kHz
2SK1215
RSSI
X300
45.305MHz
CF300,301
CD300
CF302,303
EXT.MIC MIC SW
2SJ243/
DTC114EE
SUM Amp D/A
TO MIC
convertor
IC605
TC75W51FU
(1/2)
D/A
SUM Amp
Q407 M62364FP
2SC4215 AF
DTMF
IC604
X400
12MHz TC75W51FU
IC603
LPF
(2/2)
LSD
IC413
LPF
TC7W51FU
(1/2)
HSD
IC406
LSD
5C,5R,
5T
Shift Register
X45-539
Power Amp
Drive Amp
(IC801) LPF
M68776
+B
Q8
2SC4988 L12
APC
SW SW
IC7
IC7
NJM2904V Q9 Q10
DTA144EE DTC144EE
(2/2)
2SK
PC
5T
Q13 1824
TV
PROTECT
TUNE 1SV 1SV
D203,204,205, 273 273
206,207,208 *6 *2
Mixer
MCF BEF BPF RF Amp
Q200
XF301 IC200 L202,205,206
3SK274
GN2011
DET
DTMF_TX
Option
Audio Processor
Audio
IC607
TC35453F
Q601
2SK1824
TXOUT
AF Amp
AF
IC601
X600
3.579545MHz TC75W51FU
(2/2)
DTMF
Decoder
IC600
IC413
STD
TC7W51FU
LC73872M
(2/2)
LPF
IC602
TC75W01FU
IC400,403,404,405 (1/2)
BU4094BCFV
136~174MHz
INT.ANT
LPF
ANT
SW
D10 XB15A709
D11 MA77
LPF
HSM
88AS
L14 D200
LIM.
TUNE
D201,202
BPF
L201
Mute SW
MM
SW
IC301
TC7S66FU
T/R
68