Voltage Diagram - Icom IC-R8600 Service Manual

SECTION 12

VOLTAGE DIAGRAM

• DISPLAY UNIT
SMLE13BC8T
[POWER]
DS1 Q1
R4
POWER
S1 1.5K LDTC143ZE
SML-D12D8WT86
DS2 Q2
R5
STANDBY
3.3K
LDTC143ZE
LS8J2M B1931TX
DS3 Q3
R6
LOCAL
820 LDTC143ZE
[LOCAL]
B1931TX
S2
DS4 Q4
R7
P.LOCK
820 LDTC143ZE
SML-D12D8WT86
DS5
Q5
LS8J2M R8
TIMER
3.3K LDTC143ZE
R2 R3
[P.LOCK]
[SCAN] [PRIO]
4.7K 15K
S3
S5 S7
LS8J2M
LS8J2M LS8J2M
[TIMER] [MENU] [FUNCTION]
S4 S6 S8
LS8J2M LS8J2M LS8J2M
LOCALK
J11
GND
6
SQLDAK R24 SQLDAK
5
SQLK R25 1K SQLK
4
NC 1K
3
SQLDBK R26 SQLDBK
2
GND 1K
1
J12
GND
6
AFDAK R27 AFDAK
5
AFK R28 AFK
4
NC 1K
3
AFDBK R29 1K AFDBK F3R3V
2
GND
1
1K
J13
GND
6
MFDAK R30 MFDAK
5
MFK R31 1K MFK
4
NC 1K
3
MFDBK R32 MFDBK
2
Click ON
GND 1K
1
Click OFF
J14
FS3R3V EP31 MPZ1608S601A
1
MAINDBK R33 MAINDBK
2
MAINDAK R34 1K MAINDAK
3
CLKK R35 1K
4
GND 1K
5
J16
EP11 MPZ2012S601A
EP12 MPZ2012S601A
R16
EP13 MPZ2012S601A
22K
Headphones connection
Other
J15
PHOL
4
PHGL
3
PHGR
2
PHOR
1
LED brightness 0%
LED brightness 80%
LED brightness 100%
SMLE13EC8T
[GRP▲]
PWRLED
DS6 Q6
RECEIVE R9 RXLED S12
R12
1.5K
LDTC143ZE
B1931TX
2.2K
STBLED
DS7 Q7
R10
LOCK DLCKLED
820 LS8J2M
B1931TX LDTC143ZE
REMOLED
DS8
Q8
M-CH DIAL R11 FREQLED
[GRP▼] R13
820
LDTC143ZE
S13
15K
PLCKLED
LED brightness 0% 2.6 V
LED brightness 80% 5.8 V
TIMLED LS8J2M
LED brightness 100% 6.6 V
[M.SCOPE] [QUICK] [EXIT]
S9 S10 S11
LS8J2M LS8J2M LS8J2M
CP101
CP10S
FIN_PWRS 1
P120/ANI19/VCOUT0
FREQLED 2
P43/(INTP9)
3
DLCKLED
P42/(INTP8)
3.2 V
4
RXLED
P41/(TRJIO0)
TOOL0 5
0.6 V P40/TOOL0
6
RESET
CLKK 7
P124/XT2/EXCLKS
PHK 8
P123/XT1
FLRXD (FLIRQ) 9
P137/INTP0
10
R104
P122/X2/EXCLK
11
47K
P121/X1
C101 12
REGC
1 13
VSS
14
EVSS0
15
VDD
16
EVDD0
D11
PHK
LRB706F
3.2 V
0.6 V
12-1
3.0 V
6.0 V HV
10V
6.9 V
3R3V
PWRK
LDPS
Q43
R41
Q41
[V/M]
22
S14
2SB1201
2SB1132G
J51
Q42 Q44
L2SC4081 L2SC4081 42
LS8J2M
3250
MP51
[MW]
S15
24.4 V/38 mA
LS8J2M
IC51
TPS61161ADRV
1 6
[M-CH DIAL]
FB VIN
2 5
D51
COMP CTRL
S16 3 4
GND SW
DB2141300L
LS8J2M
[SCPH/LOCK]
S17
C60
0.1
Q51 IC53
1 5
2
LS8J2M LDTC143ZE 3 4
SN74AHC1G125DCK
FS3R3V
F3R3V
LDTC143ZE
Q61
R102
R103 6.8K
R101 6.8K
R123 6.8K
R124 47K
47K
R121
R107
1
47K
R5F104LCAFB
10K
IC103
IC101
NJM2904CRB1
Key pushed KI2
SPCH/LOCK 0 V
R108
7
M-CH DIAL 0.8 V
10K
IC103
MW 1.6 V
NJM2904CRB1
GRP▼ 2.5 V
No key is pushed 3.2 V
48 MFDBK
P147/ANI18/VCOUT1
47 MFDAK
P146
46
MFK
P10/SCK11/SCL11/TRDIOD1
45
DASTB
P11/SI11/SDA11/TRDIOC1/(RxD0_1)
44 DACK
P12/SO11/TRDIOB1/IVREF1/(INTP5)/(TxD0_1)
43 DADAT
P13/TxD2/SO20/TRDIOA1/IVCMP1
42 BKLV
P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0)
41 STBLED
P15/SCK20/SCL20/TRDIOB0/(SDAA0)
40 PWRLED
P16/TI01/TO01/INTP5/TRDIOC0/IVREF0/(SI00)/(RxD0)
39
SQLK
P17/TI02/TO02/TRDIOA0/TRDCLK/IVCMP0 /(SO00)/(TxD0)
38
SQLDBK
P55/(PCLBUZ1)/(SCK00)/(INTP4)
37 SQLDAK
P54/(INTP3)
36 MAINDBK
P53/(INTP2)
35 MAINDAK
P52/(INTP1)
34 FLTXD
P51/INTP2/SO00/TxD0/TOOLTxD/TRGIOB
33 FLRXD
P50/INTP1/SI00/RxD0/TOOLRxD/SDA00/TRGIOA/(TRJO0)
DS1 (FRONT UNIT)
41
Backlight 0% 20.2 V
Backlight 80% 22.7 V
Backlight 100% 24.2 V
3R3V
GND
R4 R64 LCD_R4
Q62 RZF020P01TL
R6 R65 22 LCD_R6
G2 R66 22 LCD_G2
G4 R67 22 LCD_G4
G6 R68 22 LCD_G6
B3 R69 22 LCD_B3
R61
B5 R70 22 LCD_B5
B7 R71 22 LCD_B7
1K
DISP R72 22 LCD_ON
VSYNC R73 22 LCD_VS
22 GND
R110
R74 FRES
R75 100 LRXD
18K R114
22
2
15K
3
R116
33K
R112
18K R115
6
R3 R77
15K
5 R5 R78 22
R117
R7 R79 22
G3 R80 22
33K
G5 R81 22
G7 R82 22
B4 R83 22
B6 R84 22
CLK R85 22
HSYNC R86 22
DE R87 22
22
IC102
R88
8 1
22
LD AO1
7 2
CLK AO2
6 3
DI AO3
5 4
GND VCC
BH2220FVM
PWRK
FUSB_DP
FVBUS
GND
SD_WP
SD_D1
SD_D2
GND
SD_CLK
RX: 13.4 V
SD_D3
GND
EP62
MPZ1608S601A
8 IC103
10V
EP61
V+
F3R3V
GND
MPZ1608S601A
4
NJM2904CRB1
RX: 3.3 V
LEDV
FUSB_DP
FVBUS
SD_WP
SD_D1
SD_D2
SD_D3
Q81
LDTC143ZE
TWDCLC
TWCS
TWDTX
TWBUSY
IC52
17
5 16 TWDRX
AVDD DOUT
6 15 TWPIRQ
X+ PENIRQ
7 14
Y+ DVDD
8 13 FS3R3V
X- VREF
UC6528XBNQ4G
EP64
MPZ1608S601A
J61
NC
1 2
LCD_R3
3 4
LCD_R5
5 6
LCD_R7
7 8
LCD_G3
9
10
LCD_G5
11 12
LCD_G7
13 14
LCD_B4
15 16
LCD_B6
17 18
LCD_CLK
19 20
LCD_HS
21 22
LCD_DE
23 24
GND
25 26
LTXD
27 28
GND
29 30
RX: 10.1 V
R63
100
EP63
10V
J71 MPZ1608S601A
NC
1 2
FUSB_DM
3 4
5 6
GND
7 8
SD_D0
9 10
NC
11 12
SD_3R3V
13 14
SD_CD
15 16
SD_CMD
17 18
GND
19 20
NC
21
22
HV HV
23 24
NC 10V
25 26
NC
27 28
F3R3V
29 30
R90
J81 1K
SD_LED
1 2
NC GND
3 4
FUSB_DM
5 6
GND
7 8
SD_D0
9 10
SD_CD
11 12
SD_CLK
13 14
NC SD_3R3V
15 16
NC GND
17 18
SD_CMD
19 20
RX: 3.3 V