Block Diagram - Kenwood TH-K40A Service Manual

TH-K40A/K40E
TX-RX ユニット (X57-822X-XX )
D426
B30-1782-05
BUSY
(GRN)
LTC014EEBFS8
D427
B30-1779-05
TX
(RED)
LCD B38-0939-05
D414,D415 B30-2261-05
D416~D425 B30-2337-05
LCD/KEY BACKLIGHT
KEY MATRIX
PTT S418
MONI
S417
S419
W02-3766-05
ENC
F300
BATT+
7.5V
3.15A
PROTECT
BATT-
VR300
R31-0684-05
SB
VOLIN
VOLOUT
VOL/PSW
30

BLOCK DIAGRAM

5MS
DCSW LEDG
LTC014EEBFS8
Q403
PLLD
INVERT
5MS
DCSW LEDR
2SC5383-T111
Q404
LTC014EEBFS8
COM0~COM3,SEG0~SEG31
Q401 Q402
12A02CH 2SC4617(R)
DCSW DCSW LAMP
SB
D404~D407
1SS388
D408~D412
MA2S111-F
DIODE
KEYI1~KEYI4,KEYIS,KEYIT
KEYO1~KEYO4
MATRIX
INPTT
MON
ENC1
ENC2
+B
D301
GN1G
IC306
XC6209B502P-G
D302
RB521S-30
AVR
PROTECT
5V
XC6120N302N-G
IC1
MB15A02PFV2E1
PLPS
Q6
PLLE
DAT
PLL SYSTEM
CLK
LD
3.3V
Q7
REG
TCXO
19.2MHz
5C
X1
L77-1944-05
5C
LSDO
IC300(6/8)
R2A20178NP
D/A
FREQ
CONV.
5MS
5MSC
LEDG
LEDR 5TC
PLLE 5RC
5CC
DAT
CLK
BATT PLLD
RESET
ENC1
EXPTT
ENC2
INPTT
MON
XIN
XOUT
X400
L78-2974-05
11.0592MHz
SW
Q400
2SC4919-S
BATT
IC308
SB
D304 XC6209B502P-G
RB521S-30
AVR
PROTECT
5CC
5M
Q304
SSM3J05FU-F
DC SW
5MS
5MSC
RESET
RESET
IC305
LPF
Q3
MCH3914(7)-H
D1,D2
1SV325F
LOOP
VCO
FILTER D4
HVC350B
MOD
5MS
SHIFT
D/A
ASSIST
SW
CONV. D5
HVC350B
IC300(5/8)
SHIFT
R2A20178NP
VCO oscillation frequency
RX: 361.150~431.145MHz (M,E)
TX: 400.000~469.995MHz (M)
430.000~439.995MHz (E)
5M
THREM
CURRENT
RSSI
SQL
VOX
LSDI
MCU
IC401
R5F2L3ACCKEKA
VDCSW
WIID/NAR
HSDO
SPM
CLK
DATA
E2PIN
5M
E2PCS
BSFT
EEPROM
IC400
BR255640FV1-W
5C
Q308
SSM3J05FU-F
5T
DC SW
5V
5TC
Q307
LTA023JEBFS8
DC SW 5R
5RC
2
Q1
LTC014EEBFS8
D3
HSC277