Kenwood TK-2170 Service Manual Supplement page 42

MAIN BOARD
SB
X57-700 (B/4)
SIDE KEY
1 1
AUX
PTT
CONTROL CIRCUIT
SW1
SW2
Q12
GND
2SC4617(S)
GND
Q13
6 6
2SB1132(Q,R)
SB
LCD
AVR
PTT BOARD
X57-700 (C/4)
LCDBL
KEY BACK LIGHT
(16KEY TYPE ONLY)
4KEY BOARD
D8,9,12,13
X57-700 (D/4)
B30-2050-05x4
12KEY
KEY1O KEY1
KEY4O
KEY4
KEY3O
IC9
CAT24WC64WI
EEPCL
EEPROM
EEPDAT
IC8
IC7
A0~A18
AT29C040A-90TU
30625MGP234HU
D0~D7
FLASH
WR
MEMORY
MICROPROCESSOR
CSO
RD
IC4,5
DMUTE 5MSC
BU4094BCFVx2
SSBC SAVE SFTSTB
WIDE STSW SHIFT
SFTOE
NARROW AM1 REGISTOR DT
VOXMUTE MMUTE CK
OPST LCDBL
RX AQSFT
TXD EN1 VOXIN PLLDAT
TX
RXD EN2 BATTSEL
PLE
EN3 BATTLVL
PCK
TXD2 EN4 ASQ
UL
RXD2 VOLIN RSSI
PTT THP
DACDAT
AUX1 AUX MDSW
DACCLK
AUX2 SIDE1 SELF
AUX3 SIDE2 OPTDET DACDL
AUX4
AUX5 5TC HSDO AFDAT
AUX6 5RC HSDIN AFDIO
BEEP
AFDIR
MIC
APCSW AM2 LSDOUT
DTRLOAD
DSW LSDIN
AFSTD
PC LEDR
SCLK
LEDG RESET
BB RDF/FD
INT
TCLK/DTRDO
SHIFT
SP
Q28,35
SSM3K01T(F)x2
AUDIO
MUTE
TXD
5MS
OPTDET
MUTE
PTT/RXD
SW
20
Q27
AUX6 DTC144EE
RA I
RA O
MIC I
ALT1
ALT2
DEO
TA2
MIC O
5C
TA1
TXD2
AUX5 Q15
SSM3K15TE(F)
AUX4
Q16
AUX3
2SA1774(S)
RXD2 SB
AUX2
DC SW
AUX1
SSB
SSBC
GND
1
RF BOARD
X57-700 (A/4)
D2
B30-2278-05
Q7
UPA672T-A
DC
SW
RX
LEDG,LEDR
PLE,PDAT,
PCLK
PLL
UL
IC501
ADF4111BCP7
TCXO TCXO
LCD BACK LIGHT
X501
16.8MHz
D5,7
B30-2210-05x2
4KEY
LCD PANEL
COM1 S1
COM4 S30
LCDCLK
LCDDAT
IC6
LCDCE
LC75834W-E
LCDINH
LCD DRIVER
X1
11.0952MHz
DC
SHIFT
SW
Q17
2SC4649(N,P)
IC17
TK62012F
TCXO
TCXO
BUFFER
D/A CONVERTER
IC16
IC18
5MS
M62364FP-F
TA7368FG
AF AMP
MOD
AM1
TA2
AMP SW 5MS
Q23
DTC144EE
Q24
SSM6J08FU(F) IC19
TC75S51FE(F)
DACDAT
BPF DC AMP
DACCLK
DACLD
IC15
TK62012F
ALC
RX HSD
HSDI
Q25 AMP
2SK1830F
Q26
2SJ347F
D30,31
RB706F-40x2
Q501
2SC5488
BPF DOUBLER
Q502
2SK508NV(K52)
D504,505,506,507
1SV325Fx4
TUNE
D513
1SV278F
D502,503,512
MOD
TX
HSC277x3
VCO
D501 Q506 Q507
HSC277 2SC5488 2SC5488
LOOP VCO BUFFER RF
TX,RX
FILTER SW AMP AMP
Q505
RX 2SC4617(S)
VCO
D514
HSC277
Q503
2SK508NV(K52)
CF701
D508~511
WIDE(E)
1SV325Fx4
D701
DAN235E
IF SW 450kHz
WIDE,NARROW WIDE,NARROW
CF702
NARROW(G)
Q701 IC701
2SC4649(N,P) TA31136FNG
2nd Lo FM IF
TRIPLER
SYSTEM
50.4MHz
RSSI,ASQL
DETAF
CD701
450kHz
5C
BASEBAND CIRCUIT
MIC I MIC O
R170
LSD
LSDO
FILTER
MIC
MMUTE
MUTE
IC12 (A/2) TX
Q30
TK62012F
2SJ243-A
MOD
AF SW
AMP
Q21 : RN4910(F)
X2
3.6864MHz
AUDIO
PROCESSOR
IC13
AQUA-L
RA O
Q22
SSM3K15TE(F)
TC7W53FK(F)
AUDIO
RA I
MUTE
TK62012F
Q34
AM2
SSM3K15TE(F) AFDET AFSTD
AFDIO SCLK
AUDIO
AFDIR BB RDF/FD
ALTI
DTRLOAD TCLK/DTRDO
ATT
VOXMUTE
OPST
DC Q19
BEEP
SW SSM3K15TE(F)
Q33
2SJ347F
VOXIN
HSD
MUTE
STSW
D516,519 Q602
Q603
HSC277x2 2SK3077F RD01MUS1
TX/RX PRE-DRIVE DRIVE
AMP AMP
SW D601
UDZS4.7B
5T
5T,5R
ZENER
5C
RIPPLE
D609
FILTER
AVRM Q608
Q605
DTA144EE
1608180M6A DTC114EE
D702 DC DC
VARISTOR DSW
DAN235E
SW SW
IF SW
Q607
DC
APCSW
DTC114EE
SW
LPF
Q703 XF701 Q704
2SC4649(N,P) 49.95MHz L711,713
3S294(F)
1st
IF AMP MCF BPF
MIXER
5R
W/N
NARROW BPF TUNE
SW
Q702 D703,704
DTA144EE 1SV323Fx2
DC SUPPLY CIRCUIT
XC6204B502PR
5M
SSM6J08FU(F)
5MS
Q31,32
HSDO
2SC4649(N,P)x2 XC61CN3402NR
DC
VOLTAGE
AQSFT RST
SW
DETECT
Q4 : FP210
IC12 (B/2)
Q5 : UPA672T-A
TK62012F
Q1,6 : UMG3Nx2
TX SUM
5T
TX AMP
5C
IC10 (A/2)
TK62012F
5TC
AF SW
DET
IC14
AMP
DTA114EE
IC11
5R
MUTE
DETAF
SW
LSD
Q14
FILTER
SSM3K15TE(F)
LSDIN
XC61CC5002NR
SSM3K15TE(F)
VOLTAGE
INT
DETECT
D610
AVRM1608270MAB
VARISTOR
D604,605,606,608
Q604
HVC131x4
2SK2595-E
RF FINAL ANT
LPF
AMP SWITCH
L616,617,618
5T
+B
136~174MHz
IC601
TA75W01FUF
(A/2) (B/2)
COMP CURR
AMP DET
Q609
DC
SSM3K15TE(F)
SW
PC
+B
Q705
3SK294(F) L715,716
RF
BPF D901
AMP
1SR154-400
5R PROTECT
BPF TUNE
FUSE
D705,706
1SV323Fx2
BATT
7.5V
15
SB
SB
SB
IC2
SB
EN2(A)
AVR
GND
EN3(B)
Q9
5MS
DC
VOL
SW
GND
5MSC
BATSEL
IC3
1
AVR
SAVE
Q8
DC
SW
5RC
IC1
Q29
+
S
–