Main Unit - Icom IC-208H Service Manual

11-2 MAIN UNIT

MAIN UNIT (1)
L63 ZBFS5101-PT
W501
R508
47k
HV
L60
GND ZBFS5101-PT
13.8V
IC503
TA7805F
1 2
I O
G
3
J505
+
CHASSIS
-
SP1
J506
a
SP
b
EP518
C511
33p
Q508
UNR9213J
J504
PSQL
AFOUT
6 5
Q507
UNR9113J
PTTP
4 3
DATA
DATAOUT
DATAIN
2 1
R582 C549
4.7k 10
J502
8V EP501
MICU/D EP502
EXTMIC EP503
PTT EP504
to
MICE EP505
Microphone
MIC EP506
GND EP507
MICIN EP508
J503
W546
CTHV EP509
TXDATA EP510
to CONTROL
RDATA R501 1k
unit J3
GND EP511
7.9V W548
Q501
13.7V
2SB1182
IC504
TA7808F
1 2
I O
G
RX: 4.8V
3
TX: 4.8V
Q502
UNR9213J
Q503
2SA1588
D504
1SS400
R521
1k
IC502
R505
S-80945CLMC-G7F
4.7k
1 5
OUT CD
2
VDD
3 4
VSS NC
R529 47k
EP512
X501
C587 0.1
CR-520 EP513
VRSTB R517 100
R511
R518 1k
1M
W513
TX_MUTE
MIC_PTT R520 100
W526 R530 10k
UTXC
VTXC
IC501 DTCS_SEL
HN58X24128FPI
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
P_SQL
AFOUT
P_PTT
DETS
C575
10
DATAIN
R510 1k
MIC_SEL
R523 4.7k
8V
R527 1k
R507 100k
R531
EP515 10k
R524 R532
100k 150k
4 5 6
Q504
XP4601
R513 1
3 2 1
R516 10k
R525 4.7k
11 - 2
HV_I
HV
8V
5VS_W
5VS
VCC
MATORIX_IN1
MATORIX_IN2
MATORIX_IN3
R548 150k
R545 100
MATORIX_IN4
1
RES
2
XTAL
3
EXTAL
4
VCC1
5
MD1
6
MD0
7
NMI
8
STBY
9
VCC2(VCL)
10
KIN15/CIN15/A23/PA7
11
KIN14/CIN14/A22/PA6
12
SCK0/P52
IC505
13
RXD0/P51 HD6432143SA70FA [USA]
14
HD6432143SA69FA except [USA]
TXD0/P50
15
VSS
16
WAIT/P97
17
EXCL/P96
18
IOS/AS/P95
19
HWR/P94
20
KIN13/CIN13/A21/PA5
21
KIN12/CIN12/A20/PA4
22
RD/P93
23
IRQ0/P92
24
IRQ1/P91
25
ADTRG/IRQ2/LWR/P90 P42/TMRIO/SCK2
5VS_W
8V
R579 R568
1k EP517 100
R561
4.3V 2.2k
R554
Q505 470k
2SC4116
C534
0.039
C536 C537 R550
Q506
0.1 1 15k 5
3 2SC4116
- 4
1
+
2
IC506 4.3V
TA75S558F
PLLSW
MICMUTE
CLONE_IN
D507 D511 D519
Q510
UNR9210J
CLONE_OUT
D508 D512 D516
C548 R587
D509 D513 D517 D521 0.027 3.3k
D510 D514 D518 D522
R593
D507 1SS400 [EUR],[TPE],[EXP],[EUR-1] 33k
AF_MUTE
D508 1SS400 [TPE],[KOR],[AUS]
D509 1SS400 [IC-E208]
D510 1SS400 [ITR],[TPE],[KOR]
D511-D514,D516-D519
1SS400 [TPE],[KOR],[EUR-1]
D521,D522 1SS400 except [EXP]
75 AF_VOL_DATA
P14/A4 R570 100
74 MMUTE
P15/A5
73 RXVHF AF_VOL_CK
P16/A6
72 RXUHF
P17/A7
71 AM
VSS
70
VSS
69 c
PB4/D4 R577 100
68 RX400
PB5/D5
67 RX800
P20/A8
66 1200_9600SEL
P21/A9
R633
65
P22/A10 100k
64
P23/A11 R578 100
63 U_VCO
P24/A12
62 MIC_SENS
P25/A13
61 AF_VOL_CK
P26/A14
60 AF_VOL_DATA
P27/A15
59
VCC1 R571 100
58 DET_MUTE
PB6/D6
R639
57 PLLSTB1
PB7/D7 220k
56 PLLSTB2
P47/PWX1
55 AF_MUTE
P46/PWX0
54
P45/TMRI1
53 R574 100 DA_STB
P44/TMO1
52 R575 100 DA_CK
P43/TMCI1
51 R576 100 DA_DATA
R605
10k
AFOUT
R585 R591
4.7k 100k
DTMF
1200_9600SEL
MICMUTE
Q509
UNR9213J
EP521
MIC_SENS
R583 C553
1
P_MOD_MUTE
8.2k [USA]
5.6k except [USA]
R595
100k
5VS W
C547 1
R584
27k [USA]
8.2k except [USA]
DATAIN
PLLSW
Q514 Q513
R569
UNR9213J UNR9113J
470k
8V
5
3
- 4
1
+
IC507
2 RXVHF
TA75S01F
Q26
UNR9114J
RX: 4.4V
TX: 0V
RXUHF
Q27
UNR9114J
BUS LINE1
b
HV_I
HV_I
HV
HV
8V
8V
5VS_W
5VS_W
5VS
5VS
VCC
D523
MA742
EP528
C564
C568
0.22 5
1 470
4
2
3
IC510
LA4425A
Q512
2SC4213
IC508
M62429FP
1 8
VIN1 VIN2
2 7
VOUT1 VOUT2
3 6
GND VCC
4 5
DATA CLK
RX: 1.5V
TX: 2.0V
IC511 4.8V
R636
NJM3404AV
330k
1 8
2 7
- +
3 6
+ -
4 5
REF_V
MAIN
C573 1 UNIT
AFO
(2)
C574 10
C559 R597
0.0033 47k
MODIN
RX: 4.8V
TX: 4.8V
IC509
BU4066BCFV
1 14
I/O VDD
2 13
O/I CONT.A
3 12
O/I CONT.D
4 11
I/O I/O
5 10
CONT.B O/I
6 9
CONT.C O/I
7 8
VEE I/O
Q511
UNR9213J
DATAMOD
PLLSW8V
d RX400 f
Q28
UNR9114J
e RX800 g
Q29
UNR9114J
BUS LINE2