Icom IC-7610 Service Manual page 82

• DISPLAY UNIT (2/2)
EP231
2.9 V
MMZ1005B601C
EP201
MMZ1005B601C
IC453
48
J201 VCC RxOUT17
47
B6 R285
RxOUT16 RxOUT18
0 46
B5 R284
NC 40 RxOUT15 GND
0 45
B4 R283
RxOUT19
NC 39 RxOUT14
0
44
GND 38 GND RxOUT20
B3 R282 43
VDD 37 RxOUT13 N/C
0
42
R0 36 VCC LVDSGND
41
R1 35 RxOUT12 RxINO–
G7 R281 40
R2 34 RxOUT11 RxINO+
R3 G6 R280 0 39
R3 33 RxOUT10 RxINO1–
R4 0 38
R4 32 GND RxINO1+
37
R5 G5 R279
R5 31 RxOUT9 LVDSVCC
0 36
R6
R6 30 VCC LVDSGND
R7 G4 R278 35
RxIN2–
R7 29 RxOUT8
0
G3 R277 34
G0 28 RxOUT7 RxIN2+
0
G2 R276 33
G1 27 RxOUT6 RxCLKIN–
0
G2 32
G2 26 GND RxCLKIN+
G3 R7 R275 31
G3 25 RxOUT5 LVDSGND
G4 R6 R274 0 30
G4 24 RxOUT4 PLLGND
G5 R5 R273 0 29
G5 23 RxOUT3 PLLVCC
0 28
G6
G6 22 VCC PLLGND
27
G7 R4 R272
G7 21 RxOUT2 PWRDWN
0 26
R3 R271
B0 RxCLKOUT
20 RxOUT1
0
25
RxOUT0
B1 19 GND
B2 18
B3 DS90CF364AMT
B3 17
B4
B4 16
B5
B5 15
B6
B6 14
B7
B7 13
GND 12
R210
LCK
PCLK 11
LCD_ON
100
DISP 10
HS
HSYNC 9
VS
3.3 V
VSYNC 8
DE
DE 7
NC 6
GND 5
XR R251
XR 4
R252
YD
YD 3
10
XL R253
XL 2
10
YU R254
YU 1
10
DS1
(FRONT UNIT)
4.9 V
D221 L221 L222
VLED+
RB160L 27U
IC221
1 6
LX VIN
2 5
GND OVP
3 4
FB EN
APW7136CCI
VLED–
R224
47k
• USB UNIT
J107
GND_1 J109
4 5.0 V
D+1
3
D–1
2
VBUS1 GND_1 EP105
1 1
D+1 R103 MPZ2012S331A
2
D–1 R104 0
3
VBUS1 EP102 0
4
GND_2 EP115 MPZ2012S331A
5
J108 D+2 R114 MPZ2012S331A
6
GND_2 D–2 R113 0
4 7
D+2 VBUS2 EP112 0
3 8
D–2 MPZ2012S331A
2 9
VBUS2
1
5.0 V
D3R3V
3.0 V
1 R286 B7
2 0
R287 HS
3 0
4
R288 VS
0
5 R289 DE
0
6
7
8 RxIN0– LK0M
9 RxIN0+ LK0P
10 RxIN1– LK1M
11 RxIN1+ LK1P
12
13
14 LK2M
15 LK2P
16 CLKM
L271
17 CLKP
18
100U
19
20
21
22
23
24
LCD_ON
TWDCLC
TWCS
R211
TWDTX
TWBUSY
0
IC251
17
5 16 TWDRX
AVDD DOUT
6 15
TWPIRQ
X+ PENIRQ
7 14
Y+ DVDD
8 13
X– VREF
UC6528XBNQ4G
22U
C223
0.1
SN74AHCT
1G08DCKR
4 3
2
5 1
IC222
R223
100k
D222
LRB751S
• MULTI UNIT
clockwise
MFDAK
GND_1
D+1
MFDBK
D–1
VBUS1
MAIN UNIT
S1
GND_2
(1/10)
RE1107CM1
D+2
D–2
A
VBUS2
B
GND
GND [MULTI]
COM
MFDAK
MFK
MFDBK
GND
[MULTI] is held down 0 V
[MULTI] is released 3.3 V
10-2
• MIC UNIT
J1
1 MIC
7 MICE
1 7
2 +8V
8 AF OUT
6 GND
2 8 6
3 MIC U/D
4 SQL
5
3 5 PTT
4
J203
LK0M
1
LK0P
2
LK1M
3
LK1P
4
LK2M
5
LK2P
6
CLKM MAIN UNIT
7
CLKP (1/11)
8
LCD_ON
9
GND
10
D3R3V
11
D3R3V
12
GND
13
TWDCLC
TWCS
• JACK UNIT
TWDTX
TWBUSY
J103
PHONES
TWDRX
TWPIRQ
DISPLAY UNIT
(1/2)
F3R3V
5V
BKLV
J102
ELEC-KEY
VLED+
VLED–
• SD UNIT
J2
#9:DAT2
#1:CD/DAT3
#2:CMD
counterclockwise #3-1:VSS
#3-2:VSS
3.3 V 3.3 V #4:VDD
SD CARD #5:CLK
CD
0 V 0 V #6:VSS
#7:DAT0
#8:DAT1
3.3 V 3.3 V
WP1
WP2
0 V 0 V
J2
1
2
3
4
DISPLAY UNIT
5 When an SD card is inserted
(1/2)
6
7 When no SD card is inserted
8
9
10
No SD CARD is inserted
SD CARD insertion / Write Protect ON
SD CARD insertion / Write Protect OFF
C8 C1
7.9 V
47P 0.01
EP4
MMZ1608Y102BT
EP9
MMZ1608D301B
EP10
EP7 MMZ1608D301B
EP2 MPZ2012S601A
EP3 MMZ1608Y102BT
MMZ1608Y102BT
EP6
MPZ1608S221A
PTT ON 0 V SQL OPEN 0 V
PTT OFF 6.7 V SQL CLOSE 7.9 V
EP3 R2
EP2 MPZ1608S221A R1 22
MPZ1608S221A 22
When a headphone is connected
When no headphone is connected
EP1
MPZ1608S221A
DASH keyed 0 V
Un-keyed 3.2 V
EP101
MMZ1608Y102BT
EP102
MMZ1608Y102BT
DOT keyed 0 V
Un-keyed 3.2 V
3.3 V
J1
R5
14 SDDAT2
27
R6
13 SDDAT3
27
R7
12 SDCMD
27
11 GND
EP4
10 VDD(3R3V)
MPZ1608S601A
R8
9 SDCLK
27
R1
8 SDCD MAIN UNIT
220
R9
(1/11)
7 SDDAT0
27
R10
6 SDDAT1
27
5 GND
R2
4 SDWP
220
3 GND
2 GND
1 GND
0 V
3.3 V
3.3 V
3.3 V
0 V
J2
MICI L1
1 MICI
100U
MICE
2 MICE
AFO
3 AFO
GND
4 GND DISPLAY UNIT
8V
5 8V (1/2)
MUDL
L2
6 MUDL
SQLS 100U
L3
7 SQLS
100U
MSND
8 MSND
3.2 V
0 V
J1
10 PHE
9 PHOR
PHE
8 PHE
7 PHOL
DISPLAY UNIT
6 PHE
PHNI
(1/2)
5 PHNI
4 GND
DASH
3 DASH
DOT
2 DOT
1 GND