Icom IC-T81E Service Manual page 44

RF UNIT
D806: MA2S077
Q138: MXR9745
Q824: 2SC5195 D807: MA2S077 Q131: 2SC5195 Q132: 2SC5454
LO TX/RX
YGR
BUFF BUFF
AMP SW AMP
RX-Lo FREQUENCY: TX-Lo FREQUENCY:
1200MHz BAND 1200MHz BAND
D804: MA2S077 Q136:
2SC3356
Q823: 2SC5107 D805: MA2S077 Q135: 2SC5107
LO TX/RX YGR
BUFF
AMP SW AMP
RX-Lo FREQUENCY: TX-Lo FREQUENCY:
430MHz BAND 430MHzBAND
Q134:
D802: MA2S077
Q133: 2SC4403
Q822: 2SC5107 D803: MA2S077 2SC3356 Q921: MRF9745
LO TX/RX
YGR
BUFF
AMP SW AMP
RX-Lo FREQUENCY: TX-Lo FREQUENCY:
50MHz/WFM/ 50/144MHz BAND
144MHz BAND
Q821: 2SC4403
VGGC
LO
AMP
TX-Lo FREQUENCY:
50MHz BAND
FI52:
LFL30-13C1270B060
BPF
IC901: Q912: UN9215
NJM3404AV
Q913: XP6401
APC
APC
SENS
PSET
RX-Lo FREQUENCY:
50MHz BAND
WFM BAND
144MHz BAND
430MHz BAND
1200MHz BAND
D602: 1SS364 FI601: FL-299 D601: 1SS364
MODE XTAL MODE
BPF
PDA2, CK SW SW
PLST2 IC601:
69.45MHz
UPC2757T
FI602: SFECV13.35MA
CERAMIC
BPF
13.35MHz
Q701: 2SC4215
IF
AMP
IC2:
DATA, CK, IOSTRB
BU4094BCFV
I/O
TXC
T4
T4
REG
DATA
Q901: UN9211
+3C +3
+3
Q902: 2SD2216 I/O
REG
Q903: 2SB1132
D901: MA133
IC5: S-81332HG-KC IC3: BU4094BCFV
Q1: 2SD2216
Q2: XP1501
Q3: 2SB1132
D51: MA2S077
D52: MA2S077
TX FREQUENCY: 1200MHz BAND ANT
HPF
SW
TX FREQUENCY:
D402: MA2S077
430MHz BAND
Q922: 2SK3075
D403: MA2S077
PWR ANT
HPF LPF
AMP SW
TX FREQUENCY:
D302: MA2S077
144MHz BAND D303: MA2S077
DRIVE ANT
LPF HPF HPF
AMP SW
D101: 1SV308
TX FREQUENCY:
D102: 1SV308
50MHz BAND
ANT
LPF LPF
SW
FI51:
IC51: UPC2748T LFL30-13C1270B060
Q51: 2SC5319
RF
RF
BPF
AMP AMP
RX FREQUENCY:
1200MHz BAND
FI401:
IC501:
Q401: 2SC5195
EFCH435MWNP1
UPC2748T
RF RF
BPF
AMP
AMP
RX FREQUENCY:
430MHz BAND
D309: MA2SV05
D310: MA2SV05 Q301: 3SK291 D306: MA2SV05
RF
BPF BPF
AMP
RX FREQUENCY:
144MHz BAND
D203: MA2S304 Q201: 3SK292 D202: MA2S304
RF
BPF BPF
AMP
RX FREQUENCY: WFM BAND
D106: HVU350
D107: HVU350 Q101: 2SC5195
RF
BPF
AMP
RX FREQUENCY: 50MHz BAND
LEVEL
Q9: XP4601
CONV
HV
TUNE
Q5: UN9210
VCC
CHGC
DC CHG
CHG
SW
CTRL
D4: MA2S728
Q4: 2SB1132
Q6: HAT1024R D5: MA133
D6: SB07-03C
TO BATT
TX/RX FREQUENCY
LPF HPF
HPF LPF
LPF
COMPLETE VIEW