Kenwood TK-3170 Service Manual page 70

Q502
2SK508NV(K52)
D505,507
1SV325Fx2
D513
1SV278F
TX
VCO
Q506
2SC5488
VCO BUFFER
SW AMP
Q505
2SC4617(S)
RX
D514
VCO
HSC277
Q503
2SK508NV(K52)
CF701
D509,511
WIDE(E)
1SV325Fx2
D701
DAN235E
IF SW 450kHz
WIDE,NARROW WIDE,NARROW
CF702
NARROW(G)
Q701 IC701
2SC4649(N,P) TA31136FNG
2nd Lo FM IF
TRIPLER
50.4MHz SYSTEM
RSSI,ASQL
DETAF
CD701
450kHz
5C
BASEBAND CIRCUIT
MIC I
MIC O
R170
LSDO
MIC
MMUTE
MUTE
Q30
2SJ243
(F)
X2
3.6864MHz
AUDIO
PROCESSOR
IC13
AQUA-L
F)
TC7W53FK(F)
TK62012FK
AFSTD
AFDET
AFDIO SCLK
AFDIR BB RDF/FD
DTRLOAD TCLK/DTRDO
VOXMUTE
DC Q19
SW SSM3K15TE(F)
Q33
2SJ347F
VOXIN
HSD
MUTE
STSW
BLOCK DIAGRAM
Q507 D515,516 Q601
2SC5488 HSC277x2 2SC5488
RF BUFFER
TX/RX
AMP AMP
SW
5T
5T,5R
D601
5C
UDZS4.7B
RIPPLE
FILTER
ZENER
D702
DAN235E
IF SW
Q703
XF701
2SC4649(N,P)
49.95MHz
IF AMP MCF
W/N
NARROW
SW
Q702
DTA144EE
Q31,32
HSDO
2SC4649(N,P)x2
DC
AQSFT
SW
IC12 (B/2)
TK62012F
TX SUM
TX AMP
IC10 (A/2)
TK62012F
AF SW
DET
IC14
AMP
IC11
MUTE
DETAF
SW
LSD
Q14
FILTER
SSM3K15TE(F)
LSDIN
Q602 Q603
2SK3077F RD01MUS1
PRE-DRIVE DRIVE
AMP AMP
5T
Q605
DTC114EE
Q606
Q608
2SK879(GR)
DTA144EE
DC DC
DSW
SW SW
Q607
DC
APCSW
DTC114EE
SW
LPF
Q704 Q705
3SK318 L711,712,713 3SK318
1st RF
BPF
MIXER AMP
5R 5R
BPF TUNE
D703,704,705
HVC355Bx3
DC SUPPLY CIRCUIT
IC2
XC6204B502PR
5M AVR
Q9
SSM6J08FU(F)
DC
5MS
SW
5MSC
IC3
XC61CN3402NR
VOLTAGE
RST
DETECT
Q4 : FP210
Q5 : UPA672T
Q1,6 : UMG3Nx2
5T
AVR
5C
5TC SAVE
Q8
DTA114EE
DC
5R
SW
5RC
IC1
XC61CC5002NR
Q29
SSM3K15TE(F)
VOLTAGE
INT
DETECT
TK-3170/3173
Q604 D604,605,606,608
2SK3476 HVC131x4
RF FINAL ANT
SWITCH
AMP
+B
5T
450~490MHz
: TK-3170 (K,K4),
IC601
TK-3173 (K)
TA75W01FUF
400~430MHz
(A/2) (B/2)
: TK-3170 (K3,K6,M3)
COMP CURR
440~480MHz
AMP DET
: TK-3170 (M)
Q609
DC
SSM3K15TE(F)
SW
PC
L717,718
BPF
D901
1SR154-400
PROTECT
BPF TUNE
D706,707
HVC355Bx2
15
SB
SB
SB
SB
EN2(A)
GND
EN3(B)
5MS
VOL
GND
BATSEL
1
LPF
L616,617,618
+B
FUSE
BATT
7.5V
+
S
–
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