Icom IC-PCR1500 Service Manual page 60

SECTION 11 VOLTAGE DIAGRAM
EP5
J3
HEC2711-01-620 MPZ1608S221A 2.21V
VCC
EP6 IC3
11.83V
MPZ1608S221A XC6202P502PR
I O
J4 G
B4B-ZR-SM4-TF
Q4
1
2SJ377
2
3
4
R7
470
0.56V
Q2002
2SB1123
R211
VCC
J5 1
3008L-6P6C
EP45
MMZ2012D301B R224
6
EP47
10K
6
5 EP46 MMZ2012D301B
5
4
4
3 EP48
R225
3
2 10K
Q2001
2
1 EP49 DTC144EU
1
MMZ1608Y102BT
EP50
MMZ2012D301B
7.93V
R1
3.3K
IC8 PC1555G2
8 VCC 1
R2
GND 2
7 DISCHARGE
33K
TRG 3
6 VTH
OUT 4
5 VCONT
RESET C44
10
MP1
D2 C22
2879
1SS355 4.7 R15
1.2K
IC2
EP51 L6
BA6161F
MPZ1608S221A L2 4.7M 1000H
1 DRIVE 8
FB
2 NC 7
NC
3 NC 6
NC
4 VIN 5
GND
11.74V
7.7V
Q5
2SB1201
Q8
XP1501
4.23V
4.82V
EP60
MPZ1608S221A
IC1
3.33V
S-812C33AMC
Q32
2SC4116 Q31
2SB798
D27
MA2S111
R203
3.32V
J2
1k
CMS1410-016010
2.73V
4
D+
To the 3
D–
PC 2
VBUS
1
EP8
MMZ1608Y102BT Q33
UNR9214J
EP2061
J2010 EP2013
HSJ1462-01-010 MMZ1608Y102BT MMZ1608Y102BT
DS232TX
EP2017
MMZ1608Y102BT DS232RX
R6
R5
0
EP2062 0
MMZ1608Y102BT
EP2014
MMZ1608Y102BT PCR2500 only
EP2053
J2008
MPZ1608S221A
HSJ0807-01-010 R2149
BFDET
1k R2013
C2021
DET-B
4.7K
0.1
J8 EP2015 C21 R13
HSJ0807-01-010 MMZ1608Y102BT 0.1
4.7K
FDET
DET-A R149
EP53
1k
MPZ1608S221A
EP15
MMZ1608Y102BT
EP29
J6
MPZ1608S221A
HSJ0807-01-010
SP
EP10
P1
J12 EP25
SP1 MPZ1608S221A
MPZ1608S221A
1 1
2 2
EP26
MPZ1608S221A
CHASSIS UNIT
R22 330
5.0V
VCC
5.10V
IC9
AN78L05M
L5V
I O
G
4.98V
Q6
DTC144EU
PWR
PCR2500 only
IC2006 TA7805F
B5V B5V
I O
G
IC2007 AN7708SP
B8V B8V
I O
G
BPWR
SN74LVC1G08DCKR
IC6
TA7805F
5V
5V
I O
G
IC7
AN7708SP
8V 8V
I O
G
R30 10
–5V
–5.1V
R23
15
23.5V
D6
1SS272
33.7V Q9
2SC4617
24.0V
5V
USBPOW
SPPWR
VBUS
X1 CR-815 24.00MHz
R25 1M
R18
12K
C220
0.1
37
C222
0.1
USB3.3V
1 27
VDDA33 VDD18
2 26
USBDP0 VSS
3 25
USBDN0 VBUS_DET
4 24
VSS IC32 RESET_N
5 23
USBDN1 USB2502 TEST
6 22
USBDP1 CLKIN_EN
7 21
VDDA33 CFG_SEL1
8 20
USBDP2 SCL/SMBCLK/CFG_SEL0
9 19
USBDN2 SDA/SMBDATA
4.95V
3.33V
1.8V
VBUS
EP18
MPZ1608S221A
Q25 Q26
3.41V
UNR9114J UNR9214J
IC15
SN74LVC1G08DCKR
1 A 5
VCC
2 B
3 GND 4
Y
USB_VBUS
R53 22
R48
22
C233
56P
D26
X4
HVC376B
CR-816
12.00MHz
PWRSW
R173
47K
BUSY
IC40
SN74AHC2G53HDCT3 BOE
1 8
COM VCC
2 7 TXD
INH Y0
3 6 APTXD
R252
GND Y1 R251
4 5
GND A 1k 1k
IC41
SN74AHC2G53HDCT3
R213
1 8
47K
COM VCC
2 INH 7 LRX
Y0
3 6
GND Y1
4 5 FPOW
GND A
OPT3 26
APRXD
P72/CLK2/TA1OUT/V
27
P71/RXD2/SCL2/TA0IN/TB5IN
28
TXD2
IC37 P70/TXD2/SDA2/TAOUT
29
P67/TXD1/SDA1
30
P66/RXD1/SCL1
1 5
31
A VCC
2 P65/CLK1
B 32
3 4
P64/CTS1/RTS1/CTS0/CLKS1
GND Y
OPSO 33
P63/TXD0/SDA0
OPSI 34
P62/RXD0/SCL0
OPSCK 35
P61/CLK0
36
AIRQ
P60/CTS0/RTS0
ASTB 37
P57/TDY/CLKOUT
ASI 38
IC14 P56/ALE
ASO 39
24LC512T
P55/HOLD
ACK 40
1 8
P54/HLDA
A0 VCC
2 7 DINT 41
A1 WP P53/BCLK
3 6
IMST 42
A2 SCL
4 5 P52/RD
VSS SDA 43
P51/WRH/BHE
SDA 44
P50/WRL/WR
OPAFSEL 45
P47/CS3
OPAFINH 46
P46/CS2
BOPAFSEL 47
P45/CS1
BOPAFINH 48
P44/CS0
RXMUTE 49
P43/A19
APRMT 50
P42/A18
R195
0
TXD2
C215
0.1
R245
1M
MP2
2879
C276
0.0056
EP30 R181
MPZ1608S221A 47K
X3 CR-816
12.00MHz
R180 21
1 DCD
1M NC
2 RI 20
NC
3 GND IC20 19
NC
4 D+ CP2101 18
NC
5 D– 17
NC
6 VDD 16
NC
7 REGIN 15
NC
L5V
R153
4.7K
5.12
IC16
L5V L5V
PCM2901E
4.85
Q15
2.39
2SA1832
R50
4.0
27K
Q2015
C92
2SA1832
0.1
C86 R3232
C80
1
0
1
IC2038
L5V
SN74AHC1G66HDBV3
USBINSEL
R197 12K
CPU5V
R199
IC35
100K
S-80942CNMC
1 5
OUT CD
2
R171 VDD
3 4
OE
10K VSS NC
LSTB
VDAT
VCK
APPWR
OPPWR
SPMUTE
SPPWR
BEEP
MDAT
MCK
100
P95/ANEX0/CLK4
99
P96/ANEX1/SOUT4
SMAD
98 USBPOW
P97/ADTRG/SIN4 BSMAD
97
C214
AVCC CMAD
0.1 RTONE
96
VREF SCAD
95
P100/AN0 BCMAD
94
AVSS
93
P101/AN1
R222 FDET
92
P102/AN2
100K VSCAF
91
P103/AN3
90
P104/AN4/KI0
89
P105/AN5/KI1
88 TEMP
IC18
P106/AN6/KI2
87
M30624FGPGP
P107/AN7/KI3
86
P00/AN00/D0
85 R2151 BRTONE
P01/AN01/D1
100K
84 BFDET
P02/AN02/D2
83 BVSCAF
P03/AN03/D3
82
P04/AN04/D4
81
MST2
P05/AN05/D5
80
MST1
P06/AN06/D6
79 MST0
P07/AN07/D7
78 DPSTR
P10/D8
77 P1STB
P11/D9
76 P2STB
P12/D10
ACK
ASI
ASO
AIRQ
ASTB
OPV2
AOPT
PDSTB
DSTB
APRMT
APAFON
D34 1SS400
BP1STB
OPV2
BUSY
OE
BDSTB
OPT1
OPT2
IMST1
D14
D20
MA2S111
MA2S111
BAND4
EXP_DI
D15 MA2S111
D21
MA2S111
BAND3
DIGITAL
D16 MA2S111
D22
MA2S111
BAND2
1500/2500
OPSCK
D17 MA2S111
D23 OPSI
MA2S111 OPSO
BAND1 CCS
MODE
RXMUTE
D18 MA2S111
D24
MA2S111
P25
EXP_TYPE
LOGIC UNIT
11 - 1
IC34
CD4094BPWR
1 STR 16
V+
2 D 15
OE
FDETSEL
3 CLK 14
Q5
4 Q1 13 FDETINH
Q6
IFOUTSEL
5 Q2 12
Q7
6 Q3 11
Q8
7 Q4 10
Q'S
8 GND 9
QS
IC36
CD4094BPWR
1 STR 16
V+
2 D 15
OE
PPS
3 CLK 14
Q5
USBINSEL 4 Q1 13 BPPS
Q6
PDRES
5 Q2 12
Q7
BPWR
DSPS 6 Q3 11
Q8
DRES 7 Q4 10
Q'S
8 GND 9
QS
1k
R229
1k
R2229 VCC
R230 1k Q2019
2SB798
R231 1k
Q2021
2SC4116
R2230 1k
R2117
APPWR
D2012 10K
IC2039
MA2S111
SN74AHC2G53HDCT3
L5V
1 8
COM VCC
2 7
INH Y0
R2120 3 6
GND Y1
100 4 5
GND A
BUSY
R2150 1k C2205
0.1
IC2028
450kHzIN
C2277 SN74AHC2G53HDCT3
C2151 0.01 L5V
1 8
0.01
COM VCC
2 7
R2131 INH Y0
Q2023
3 6
4.7K
APCO 2SA1832 GND Y1
4 5
J2017
GND A
R2159
AXN330C130P
100K
PCR2500 only
C2169
0.1
R2249
1k
APAFOUT
R189
47K
R188 47K
5V
VCC
Q2020
Q2039
2SB798
UNR9214J
Q2022
2SC4116
D35 OPPWR
MA2S728 R110 8.2K
D2013
R2121
R111 100K
MA2S111 10K
R112 100K
R107 1M
R108 1M
OPT3 R109 1M
R2247 0
R2246 100K
C2152
UT-114 / 118
PCR2500 only
0.001
J2018
PCR2500 only
AXN330C130P
L5V
C2160
0.001
OP5V
IC2029
R2141 R2143
AFOUT R2122 100 SN74AHC2G53HDCT3
R99 47K 82K
82K
1 8
Q2024 C2166
COM VCC
4.7
2SA1832 2 7
INH Y0
R91 47K
3 6
GND Y1
4 5
GND A
DS232RX DS232TX
Explanatory notes
+B LINE
RX LINE (PCR1500/2500)
RX LINE (PCR2500 only)
RX COMMON LINE
PCR 2500 only
A
5V
B
C
D
E
F
G
H
I
J
K