Icom IC-F80DS Service Manual page 38

11-2 MAIN UNIT
MAIN UNIT
S5V
5V
C7 47p
R5 560k
R2
270k
REF 6
- 7
BAL 5
+
R1
IC2
10k
NJM12902V
1.5V
TEMP
LVIN
5V
L46 1.8µ
L1 1.8µ
PLST
SSO
SCK
UNLK
R4
1k
5V
C326
1.1V 0.1
IC2
NJM12902V
R311 12
3 14 +
470
CDEC 1 + 13
2 -
-
IC2
R314 470k
NJM12902V
C319 470p
R315 C321
100k 10
R304 56k[L]/82k[H] C315 1
TONE
R334 C344
R305 47k C316 1
MICA
470k 4.7
R306 220k C317 1[L]
SIG
C324 1[H]
5V
4
V+
GND
5.0V
11
R333
IC12 100k
NJM12902V
4
V+
GND
11
IC2
NJM12902V
R308 18k EP300
5V R300 82k
R301 47k
MTCK
MTDT
MDIO
MRDF
MSCK
MDIR
SDEC
AFOUT
MEASUREMENT CONDITIONS
SUPPLY VOLTAGE:DC 7.2V
Measurement frequency: RX 400.050 MHz
TX 400.100 MHz
Resister of tester: 50kΩ/V
5V
S5V
S5V
5V
X1
CR-778
4 3
Q2
VCC OUT
1 2 CP3 2SK880
VCON GND
R25
560
IC1 R17
C54
LMX2352TM 1.8k[L]/4.7k[H]
0.001
24 1
OUT1 CUTO
23 2
VCCIF VCCRF C55 0.001
22 3
VPIF VPRF
21 4
CPOIF CPORF
20 5
GND GND C20 5p C27 1p C28 0.5p
19 6
FINIF FINRF
18 7 C13 47p
FINRF FINRF
17 8
GND GND
16 9
L2 18n L3 15n
LE OSCX C14 0.001
15 10
DATA OSCIN
14 11
CLOCK FO/LD C9 0.001
13 12
IF_EN RF_EN
5V
R322 R329
22k 22k
R401
4.7
R320
22k
IC303
M62364FP R342
R460 18k 680
1 24
VIN1 VIN8
2 23
VOUT1 VOUT8
3 22
VOUT2 VOUT7
4 21
VIN2 VIN7
5 20
C351
VDD GND
6 19 0.1
IC12
LD RESET
NJM12902V
7 18
CLK VDAREF
2 8 17
1 DI D0
-
C387
3 9 16
+
VIN3 VIN6 0.1
10 15
R336
VOUT3 VOUT6
11 14
100k
2.0V VOUT4 VOUT5
12 13 R352
VIN4 VIN5
R457 C462
2.0V
6.8k[L]/2.7k[H]
1
R467
9
47
- 8
10
+
IC2
NJM12902V
R324 22k C339 0.1
IC301
AK2346
C318 1
1 24
AGNDIN TEST C323 82p R325 220k
2 23
AGND RXIN
3 22
TXIN RXINO
4 21
TXINO RXLPFO R319 470k
5 20
LIMLV RXAF
6 19 1
EXTLMIN RXAFIN
R323 7 18
MOD EXPOUT 2
470k 8 17
VSS VDD R331 100
R326
9 16 3
TCLK XIN 22k
10 15
TDATA XOUT 4
11 14
DI/O DIR R356 1M
12 13
RDF/FC SCLK
CP2
X301
CR-799
R309 1k
C308 0.1 R302 3.3k
R312 390k CP16 CP1 R318 10k
R337
R316 C327
ERJ2GE-JPW
33k 0.1
R313 12k
5V
S5V
S5V V5V
5V
Q3
2SC4116
R600 L602
ERJ2GE-JPW 1µ
0.9V
R601 L603
ERJ2GE-JPW 1µ
R625
4.7k
L604
0.82µ
IC600
TC4S66F
R5V
5V 5V
SP+
BEPO
D13
DAN235E
C117
4p
C353 Q14
0.1 2SC4215
R351
3.9k Explanatory notes
VOLTAGE LINE
68k R64 22
TX LINE
RX LINE
3.7V
WIDE:0.1V
NARROW:4.5V
R355
120k
5V
R330 47k
IC313 IC300
TC4W53FU LC73872M
C311 0.1
8 1 14
INPUT VDD
2 13
7 NC NC
3 12
PO EST
6 4 11
OSCO STD
5 10
5 OSCI ACK
6 9
NC SD
7 8
VSS LOAD
X300
0.46V
CR-800
R303
1M
R604 3.3k R607 1.5k
C605 C609
12p[L]/7p[H] 12p[L]/9p[H]
Q600
2SC4226
R608 1.5k
R605
3.3k
Q601
C606 C610
2SC4226
8p[L]/7p[H] 9p[L]/7p[H]
C626
0.3p[L]
0.75p[H]
L611 R610
C2012C-R39G 470
R606 6.8k R609 3.3k
R23 120k
C615
7p[L]/5p[H]
C607
Q602
12p[L]/7p[H]
2SC4226
L613
C2012C-R39G
TX: 0V
RX: 2.3V
C129 3p
R72
47
C133 0.1
IC3
TA31136FN
FI1
C127 C130
0.1 CFWC450F 0.1 1 16
OSCIN MIXIN
I O 2 15
D14 OSCOUT GND
3 14
DAN235E MIXOUT N-REC
4 13
C135 0.1 VCC N-DET
5 12
IFIN RSSI
R67 6 11
DEC IFOUT
22k
7 10
FILOUT QUAD
8 9
FILIN AFOUT
R74
FI2 220k
C128 C131
CFWC450G
0.1 0.1
R77
I O
150k
Q15
DTA144EE
Q16
DTC144EE
5V
R360
IC302
BU4053BCFV 18k
1 16 Q300
Y1 VDD
C365
DTC144EE
2 15
Y0 Y 0.1
3 14
Z1 X
4 13
Z X1
5 12
Z0 X0
6 11
INH A
IC12
7 10
R364
VEE B NJM12902V
R361
8 9
47k
VSS C 10
4.7k
8 +
9
-
0.8V
C361 0.0082
IC12
IC12
R362 R363 NJM12902V
NJM12902V
68k 68k
5 14 +
7 +
-
6
-
5V
S5V
11 - 2
A
V5V
B
EP600
Q605
L612 C
2SC5107
C2012C-R39G
Q606
Q603
2SC5107
XP1214
D
4.940V
4 3
R5V
E
Hi: 2.8V 2 Q604
Lo: 0V DTC144EE
5 1
Hi: 0V
Lo: 2.9V
R617
Q607 10k
XP1214
R612 R619
470 10k
4 3
2 F
R618
1k
5 1
R5V
5V
G
H
C145
27p
C146
82p
C382 0.1
R378
4.7k
Q303
2SC4215
R382 3.3k
DUSE
R372 R374
47k 180k
CENC0
R375
56k
CENC1
R376
22k
CENC2
CP10
R366 R368 R377
47k 1k
47k
C372 0.0056
R365 R367 R371
68k 68k 68k
12 SENC
13
I
J
R5V
K
5V
L
S5V
M
N