Icom IC-E92D Service Manual page 50

SECTION 9 BLOCK DIAGRAM
CHASSIS
D601:MA2S728
Q600:CPF3313
Q601:UNR9213
+5V
SW
OPTV
1 8
2 9 7
11 12
3 10 6
45
Q303:XP1215
MC300
GAIN
SW
EM-140
TX
Q301:UNR9213 MIC1,MIC2
SW
Q 300:2SA1832
12.288MHz
X1:CR-864
CLK
SHIFT
D13:MA2S077
Q200:UNR9213 BLED
Q201:UNR9213 T-R
DS201:CL-165HR LIGHT TXC
D200:MA2S111
I C52:MAX3221
RX232
RS
232C TX232
IC50:CD4066
Q52:UNR9213
+3V
TEMP TEMP
TTEMP SEL
CLONE
DS210:SML-A12MT LCD Q50:2SD2216
DS211:SML-A12MT LIGHT D50:MA2S728
D51:MA2S111
D52:MA2S728
DS202-DS209: KEY LED
LCD
RY-SP19UYG24 LIGHT CTRL
Q202:UNR911
9 - 1
I C53:CD4094 MUTE,DTCS,MICC,D_AS,
MIC1,MIC2
DATA,CK,IOSTB4
+5V
I/O
Q305:UNR9213
DTMF
LPF
IC302B:LMV324
Q302:UNR9113 Q306:XP1213
Q304:2SC4738 Q307:UNR9115
MIC
MODE
IDC
AM P
SW
IC301:TC7W53
Q309:UNR9213
ALC
LPF
AM P
I C300:AN6123
IC507:XC6202P502 IC508:R1111N321
CTCSS 16.384MHz
VCC 5V C5V 3.2V 3.2V X501:CR-820
REG REG
Q506:2SA1832
Q507:XP1501
+5V 3.3V +3D
REG
PTT Q504:2SA1832
DET Q503:UNR9213
+5V 5V
SW
X500:CR-821
9.8304MHz
CPUHV
VIN
CPU
I C1:HD64F2239 CHGH,CHGC
RESET
IC2:SN74AHC1G08
POWER
PCON
MATRIX KEYBOARD EEPROM
RX232
I C51:24LC512
I C400:NJM2070
SP
AF
AMP
SPSW SP
SW
AF
Q402:2SC4116 MUTE
Q403:RSR025N03 AFON
Q404:RSR025N03 REG
Q405:UNR9213
Q400:2SB1201
Q401:XP1501
I C302C:LMV324 IC504A:NJM2115
IC503:AD73311
LPF
BUFF
LINEAR
CODEC
Q505:2SC4738
AMP BUFF
DSP
CODEC
IC505:SN74LVC1G04
I C506:AMBE-2020
IC504B:NJM2115
BUFF
IC500:SN74LVC2G74
MODEM
1/2
AMP
IC501:CMX589
Q500:2SC4738 IC502:TC7S66 I C302D:LMV324
Q501:UNR9213
Q502:UNR9213
Q51:2SD2216
D53:MA8082
D54:MA2S111
HV
DET
IC50:CD4066
Q 53:UNR9115
VDET
SEL
Q 150:2SA1588
Q151:2SB1201
Q152:UNR9213
Q153:XP1501
D150:MA133
D 151:SB07-03C
CHG
+5V
CPU3 DC
REG SW
IC100:R1150H022 IC104:LMV331
D100:MA2S111 Q100:HAT1024R
Q102:UNR9113
D103:MA2S111
+3V +3
REG
IC103:XC6204B332
+5.5V
DC-DC
IC101:XC6371A551PR
D101:RB551
LOGIC UNIT
DATA,CK,IOSTB3
DATA,CK,IOSTB3
Q310:UNR9115
Q311:2SC4213
MODE
SW
BUFF
IC303:TC7W53
S703
2
A
3
RMUT E
B
1
COM
5 IC700C/D:CD4066
A
6
B
4
COM
TP70D974E20
SQL
+3V
PTT
R3C,AR3C,BR3C
S701
SKHLLFA010
S700
SKHLLFA010
SW VCC
REG
I C102:XC9201C05
Q101:RSO035P03
D102:RB161VA
MAIN UNIT
IC701:CD4094 DAFS,ACT,BCT,W/N,R3C
AR3C,BR3C,ARMUTE
I/O
IC702:CD4094 VBVCOC,UBVCOC,WFM,BRMUTE
AAM,BAM,VAVCOC,UAVCOC
I/O
LPF
IC150:LM2904
I C703:CD4066 Q150:UNR9113
TONE
TONE FILTER
SEL
IC250:LM2904
Q250:UNR9115
TONE
FILTER
LPF
I C500A:CD4066
I C501:NJM2904
Q500:UNR9211 M ODE
SW
AF
FIL
Q501:UNR9211
IC502:NJM2904 IC500D:CD4066
AF M ODE
FIL SW
Q502:2SC4738
AF
FIL
IC600:M62364FP
D/A
Q603:UNR9115
Q604:XP1115
+3V
R3V
R3,AR3,BR3
SEL
COMMON
CONTROL
RX(Analog voice)
RX(Digital voice)
TX(Analog voice)
TX(Digital voice)