Icom IC-7700 Service Manual page 90

PA UNIT FILTER UNIT
IC2:TA78L08 PA200W BOARD
Q1:2SB1119
Q2:DTC114E
PAT8
RL402 1.8M
D C_BUFF
2M
Q401A
3dB Q101 Q201 Q301 Q401B RL452 3.5M
RD01MUS1 PD550D3 MRF148A
MRF150x 2
RF PRE PWR
DRIVE
DRIVE
ATT AM P AM P AM P 3R5M
RL502 4/5M
5M
I D_DET
+15V RL552 7M
7M
+48V
THML TEMP
RL602 10M
DET
IDH
10M
IDL
RL652 14M
14M
RL702 18/21M
18M
MF 1
RL752 24/28M
24M
RL802 50M
RXINPUT_TO_RF
RX_ONLY_TO_RF_UNIT
50M
2M/3R5M/5M/7M/10M/
MF 2
14M/18M/24M/50M
THM L
LOGIC UNIT
IC604 IC821(1/2)
NJM2904
FANI
CPU FAN-IDET
HD64F2377VFQ33V
FANV_FROM_MAIN_UNIT
FAN FAN
CTRL FANG
Q 821:2SB1201
IC853
IC821(1/2):NJM2904 Q822:2SC4081
NJM2058
IC209 IC211
RXREC_FROM_MAIN_UNIT
AF AK5355 AK4384 IC852
AMP NJM2058
A/D D/A
AF AF
TONE_DET_OUT AF IC203 AM P AM P
AMP
FROM_MAIN_UNIT
CPU
IC210 IC212
VOXAF_FROM_MAIN_UNIT AF AK5355 AK4384 AF
HD64404
AMP AM P
A/D D/A
MREC_FROM_MAIN_UNIT
AF
AMP
IC31
UPG2009
SCPT_FROM_RF_UNIT
SCP_FROM_RF_UNIT
SSR/SST FROM CPU
Q701
2SC4406
SAD_FROM_PLL_UNIT
40MHz
BUFF
TO LOGIC UNIT(CPU) SDAT/SCK/DFRS/DX1S/DFXS
IC801
D101/D102 D 151/D152 D201/D202
HSM88ASx2 HSM88ASx2 HSM88ASx2
RL252
D303
CTIN
SWR-DET P-DET R-DET
RL401
TRC
LPF BIAS
AN3 THRU1
2M
IC1
Q252:2SB112 3
RL451 FOR/REF(MAIN)
M38022 Q253:2SD1619
AN0/AN1 Q254:DTC114 E
LPF
TUNER_
3R5M IKEY/ISTA/TDRS CPU RL254
TO/FROM CPU
RL501
FROM CPU
LPF
CSTB BAND 3R5M/4R6M
5M CTRL 4R6MOL
T8V
RL_CTRL
RL551 I C51:CD74HC4094
Q 3-Q10
IC52:BU4066
LPF
DTC114Ex8
Q51/Q52/Q53:DTC114Ex3 Q255:UMD3N
7M Q256:DTC114E
MOTOR
RL601 CTRL
FSTB
LPF
RL_CTRL
10M
I C55:CD74HC4094
RL651 IC57:TD62783
LPF
14M
C-NET
RL_CTRL
RL701
LPF
I C56:CD74HC4094
18M IC58:TD62783 THRU1
Q55:DTC114E THRU2
RL751
LPF
L-NET
24M
RL801
CTRL
LPF
50M
BOARD
RL_CTRL
IC401 IC402/IC403
TD62783 TD62783x2
C-NET DATA / BAND DATA
TUNER UNIT
REG UNIT
AC INPUT
(FP2212)
RXPLAY_TO_MAIN_UNIT
MICPLAY_TO_MAIN_UNIT
Q1 IC405
2SC4081 NJM2904
ATTV
AM P AM P
D 1/D2:CPH5513x2
Q2 FI201
D3:1SV263 D101
BW=1MHz FL-357
2SC555 1
HSB88W S
XTAL
LPF BPF AM P ATT
PIN-ATT
BPF
fc=64.455MHz BW=6KH z
fc=45MHz
IC820
Q101
Q720 AD9857AST
2SC467 3
2SC4406
LO
DDS LPF HPF ATT LPF
AM P
AM P
IC502
FROM CPU
TC7S04
SDAT/SCK/SST1/SPS0/SYNCIO
RESET /RESET
INV DRESL_FROM_LOGIC_UNI T
IC601 IC501 IC404/IC403(1/2) IC401(1/2)
TMS320C6720 AD7650AST UPC4094x2 fc=220kHz U PC4094
SCOPE IN/OUT
A/D LPF
DSP AMP AMP
IC401(1/2)/IC403(1/2)
IC607:R3111N111
40MHz
UPC4094x2
AM P I C821:TC7SH08
IC602/IC603
SN74LVC1G04x2 RESET /RESETD
DRESDS_FROM_LOGIC_UNIT
IC671
F-ROM
Q843 46MHz
AT49BV040
2SC5226
ADF4116
BUFF LPF ATT
IC803
TC74HCT7007A
1/448 LEVEL FROMCPU
CONV SDAT/SCK/SST2
Q841 Q842
Q821 2SC522 6
2SC4081
2SK210
PHASE LOOP LO
BUFF
FIL AM P
DET
44.8MHz
Q872
2SC440 6
DTC114E
Q810
1/400 40MHz
AM P MUT E
SMUT_FROM_MAIN_UNIT
CTRL
ANT-SW UNIT
D301/D30 2
HSM88ASx2
RL253 RL51
ANT1
1
CRNT
DET
THRU2 ANT 1
IC301
NJM2903
RL61
ANT2
AMP
1
ANT 2
RL71
ANT3
1
ANT 3
C-NET
RL81 ANT4
1
Q300:2SB1123
Q301:DTC114 E
FAN ANT 4
CTRL
Q11-Q14 RL84
RN2427x4
BUFF
ANT4G
RL_CTRL
RL_CTRL
IC11
BU2099
ANT4R
MF 3
C15V
+15V
+48V
IC801
RL142
C15V -12V
DC-DC
LG_PWR
H8V LM2594
8V
IC201
3R3V
DC-DC
+5V
BD9302
IC401
VDD5
DC-DC
VDD1R5
BD9302
IC601
VDD3R3
DC-DC
BD9302
Q141
DTD113
PWRS
SCOPE UNIT RL_CTRL
DC-DC UNIT
Q20 1 Q20 2
2SK882 2SK882
AM P AM P
18.955MHz -
19.955MHz
ATT
D4
HSB88W S
ATT
200kHz
44.8MHz
Q301
2SC4673
LO
IC2
ATT
AM P
TA79L05
-12V -5V -5V
REG
IC201
TLV1117
+3.3V +1.2V
+1.2V
REG
IC505
S-812C25AUA
+5V +2.5V +2.5V
REG
9 - 4