Icom IC-R8600 Service Manual page 67

• MAIN UNIT ( 3/10 )
H3R3V
H3R3V
A8V
A8V
H4V
H4V
TO MAIN UNIT (8/10)
Q303
RVBUS RVBUS_
RVBUS
LDTC114YE
USB connection
RUPWS
RUPWS
Other
IC304
1 5 RUSB3R3V
VIN VOUT
2
VSS
3 4
CE NC
XC6209F332MR
USB connection 3.3 V
Other 0 V
TO MAIN UNIT (5/10)
RUSB_AF_L
RUSB_AF_L
RUSB_AF_R
RUSB_AF_R
H3R3V
TO MAIN UNIT (8/10)
R349
RUDRXD2
RUDRXD2
22
R350
RUDTXD2
RUDTXD2
22
RUDRES
RUDRES
RUDRXD1/RUDBSY
RUDRXD1/RUDBSY
RUDTXD1
RUDTXD1
CRXD/CBSY
CRXD/CBSY
CTXD
CTXD
UCLKS
UCLKS
5V
3R3VA
3R3VA
TO MAIN UNIT (8/10) MUTES
Q391
L2SC4081
R394
33K
TO MAIN UNIT (7/10) DIG_CK
TO MAIN UNIT (8/10) DIG_DAT
83.3 ns
RVBUS_ RUSB3R3V
( 12.0 MHz )
R315
1M
3.5 Vp-p
X302
CR-1020
4.8 V
0 V
RUSB_AVDD
Q304
LDTC114YE
IC302
PCM2901E
IC301
1 16
Y1 VDD
2 15
Y0 Y
14
3
Z1 X
4 13
Z X1
5 12
Z0 X0
6 11 C304
INH A
7 10 10
VEE B
8 9 C305
VSS C
10
CD4053B C306
10
CP302
SHORT
28 8
DTR VBUS
27 9
DSR RST
26 10
TXD NC
IC341
25 11
RXD SUSPEND
24 CP2102GMR 12
RTS SUSPEND
23 13
CTS NC
22 14
NC NC
Q341
LDTC114YE
D391
L1SS400
C391
0.1
IC391
1
2
3
TC7SZ07FU
C392
0.1
IC392
1
2
3
TC7SZ07FU
EP321
MPZ1608S601A
41.4 ns
( 24.2 MHz )
IC303
5 1
VCC A
2
B
4 3 1.0 Vp-p
Y GND
SN74AHC1G32DCK
R324
47
RUSB3-P
R320
RUSB1-M
RUSB3-M RUSB1-P 27
REN3
RUSB2-M R332
RUSB2-P 27
RUSB3-M R326
RUSB3-P 27
RUSB3R3V
R351
RUDRXD1/RUDBSY
22
28
27
26
RUSRXD
R354
RUDTXD1 RUSTXD 25
24
22
23
22
H3R3V
CRXD/CBSY
CTXD
UCLKS
5
4
R396
100
5
R397
4
100
C367
0.1
R328
12K
R_12K_ERA3YED
X321
CR-1028
1
USBDM_DN1/PRT_DIS_M1
R322 2
USBDP_DN1/PRT_DIS_P1
27 3
USBDM_DN2/PRT_DIS_M2
4
USBDP_DN2/PRT_DIS_P2
IC321
5
VDDA33
USB2513B
6
USBDM_DN3/PRT_DOS_M3 SDA/SMBDATA/NON_REM1
7
USBDP_DN3/PRT_DIS_P3
8
NC
9
NC
R335
27
R330
27
R355
REN1
0
R356
REN2
0
8 REN1
DTR VBUS
9
DSR RST
10
TXD NC
IC351 11
RXD SUSPEND R357
CP2102GMR 12 REN3
RTS SUSPEND
13
CTS NC 0
14
NC NC
R377 R378
H3R3V
10K
18K
C371
Q371
0.1
L2SA1576AR
IC372
8 1 L2SC4081
R371 7 2 Q372
R375
R373 22 6 3
22 5 4
12K
CP371 CP372
SN74LVC3G14DCTR
SHORT1005 SHORT1005
R387 R388
H3R3V
10K 18K
C381
Q373
0.1
L2SA1576AR
IC373
8 1 L2SC4081
R381 7 2
UCTXD Q374
R385
22 6 3
UCRXD R383
22
5 4
12K
CP381 CP382
SN74LVC3G14DCTR
SHORT1005 SHORT1005
SSSS925800
CP391
CP06S D392
S391
RCLAMP7524T
12-4
R339
27
R340
27
R325
100K
D321
LRB706F
D322
27
VBUS_DET
26
RESET_N
25 LRB706F
HS_IND/CFG_SEL1
24
SCL/SMBCLK/CFG_SEL0
23
VDD33
22
21
CP321
NC CP06VR SCL
20
CP322
NC CP06VR SDA
19
CP323
CP06VR RESET
OCS_N3
J322
1 2
3 4
5 6
7 8
9 10
C369
0.1
IC322
SDA VSS
5 4
SCL A2
6 3
WP A1
7 2
VCC A0
8 1
BR24T32FVT
3 2
4 1
J321
[USB]
CIV
EP371
MMZ1005B601C
J371
[REMOTE]
CIVE CP373
SHORT1005
J392
EP391
MMZ1005B601C
[MUTE]
EP392
MMZ1005B601C