Icom ID-800H Service Manual page 52

SECTION 11 VOLTAGE DIAGRAMS
11-1 MAIN UNIT
MAIN UNIT(1)
W501
HV
L63
GND
J505
SP+
+
CHASSIS
SP1
-
L60
ZBFS5101-PT
J506
SP
a
b
IC503
TA7805F
1
I O
G
3
J507
GND
PTTIN EP534 PTTIN
5V
PTTOUT EP535 PTTOUT
8V
DMOD EP537
DAFIN EP533 DAFIN
BUSY_C EP536 BUSY_C
RMUTE EP538 RMUTE
DETS EP544 DETS
to CODEC
board J301
DAFOUT EP539 DAFOUT
FLASH EP541 FLASH
GND
SO EP542 SO
OPV3
SI EP543 SI
J508 OPV3
232IN
to CODEC 232OUT
board
5VS
J504
EP551
P_SQL
AFOUT
8 7 6
EP549
P_PTT
DATA 5 4 3
DATAOUT
DATAIN
2 1 EP550
R582 C549
4.7k 10
EP548
J502
8V EP501
MICU/D EP502
EXTMIC EP503
PTT EP504
to
MICE EP505
Microphone
MIC R776 100
GND EP507
MICIN EP508
C766
0.01
C: 13.6V
J503
HV EP509
TDATA EP510
to CONTROL
RDATA
unit J3
GND EP511
ZBFS5101-PT
C: 7.9V
R748 ERJ3GE-JPW
Q501
C: 13.8V
2SB1182
C: 13.8V
R508
C: 7.9V IC514
47k
TA7808F
IC504
O I
TA7808F G
1 2
I O
G
3
RX: 4.8V
5VS
TX: 4.8V
Q503
C: 4.9V
2SA1588 Q519
2 5V
2SA1362
D504
1SS400
R521
1k
FM: 4.8V
DV: 4.8V
Q502
UNR9213J
IC502
R505
S-80945CNMC-G9F
4.7k
1 5
OUT CD
2
VDD
3 4
VSS NC
EP518
5V
R529
C511
33p EP512
X501
C587
CR-520 EP513
VRSTB R517
R511 1M
R518
SI
SO
R713
ERJ3GE-JPW
TX_MUTE
R726 MIC_PTT R520
ERJ3GE-JPW
5V UTXC
VTXC
IC501
HN58X24128FPI
DTCS_SEL
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
Q508
UNR9213J P_SQL
AFOUT
Q507
UNR9113J
P_PTT
DETS
C575
10
DATAIN
R510 1k
MIC_SEL
R523 4.7k
8V
R527 1k
R507 100k 5V
EP515 R531 10k
5V
R524
100k
4
Q504
R746
XP4601
MCR10-JPW
R513 1
R516 10k 3
R501 1k R525 4.7k
HV_I
HV
8V
5VS_W
5VS
VCC
IC513 AN6123MS C672 R649 C671
0.1 22k 0.1
2 3 IC512
DET INPUT
SN74AHC2G53HDCT
4
GND
1 5 1 8
VCC OUTPUT COM VCC
2 7
C674 R651 INH Y0
270k 3 6
0.1
R773 33k GND Y1
4 5
GND A
IC518
SN74AHC2G53HDCT
R774 R652 C673
8 1 100k 150k 0.1
C713 1 VCC COM
7 2
Y0 INH
6 3
Y1 GND
5 4
A GND
WN_SEL
R752
470
R548 100
R545 100
Explanatory notes
VOLTAGE LINE
1
RES
2
XTAL
TX LINE
3
EXTAL
4
VCC1
RX LINE
47k 5
MD1
6
MD0 COMMON LINE
7
NMI
8
STBY
0.1 9
VCC2(VCL)
100 10
KIN15/CIN15/A23/PA7
11
KIN14/CIN14/A22/PA6
1k 12
SCK0/P52
13
IC505
RXD0/P51
HD64F2144AFA20
14
TXD0/P50
15
VSS
16
WAIT/P97
100 17
EXCL/P96
18
R530 10k 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
5V
5VS_W
8V
R579 R568
1k EP517 100
R532
150k
C: 4.3V
5 6
C534
0.039
R554
Q505
470k
2SC4116
C536 C537 R550
2 1
0.1 1 12k 5
3
- 4
1
+
2
IC506 C: 4.3V
TA75S558F
D507
MATORIX
_IN1 CLONE_IN
D521
CLONE_OUT
MATORIX
_IN3
D522
MATORIX
_IN4
C548
0.027
D507 1SS400[EXP]
D521,D522 1SS400[USA]
VCO_SHIFT
R593
R5CTRL 33k
AF_MUTE
MICMUTE
R563
100
AF_VOL_DATA
AF_VOL_CK
75
P14/A4 R570 100
74 MMUTE
P15/A5
73 RXVHF
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
65
P22/A10
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
R571 100
VCC1
58 DET_MUTE
PB6/D6
57 PLLSTB1
PB7/D7
56 PLLSTB2
P47/PWX1
55 AF_MUTE
P46/PWX0
54 FLASH
P45/TMRI1
53 R574 100 DA_STB
P44/TMO1
52 R575 100 DA_CK
P43/TMCI1
51 R576 100 DA_DATA
P42/TMRIO/SCK2
AFOUT
R585
4.7k
DTMF
MODIN_
1200_9600SEL
MICMUTE
W-TX: 4.9V
N-TX: 4.9V
Q509
UNR9213J
EP521
MIC_SENS
P_MOD_MUTE
R595
100k
5VS_W
C547 1
8V
DATAIN
R569
470k
R561 2.2k
Q506
5
2SC4116
3 RXVHF
-
4
1
+
IC507
2 Q26
TX: 4.8V TA75S01F
UNR9114J
RX: 6.1mV
RXUHF
Q27
UNR9114J
11 - 1
BUS LINE1
b
HV_I
HV_I
HV
HV
8V
8V
5VS_W
5VS_W
5VS
5VS
VCC
D523
MA742
EP528
Q510
UNR9210J
R587 C564
C568
3.3k 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: 1.5V
IC511 C: 4.8V
R636
NJM2115V
330k
1 8
2 7
- +
3 6
+ -
4 5
MAIN
C573 1 UNIT
AFO
(2)
R605
10k
C574 10
R591 C559 R597
100k 0.0033 47k
RX: 2.3V
TX: 2.3V
IC509
CD4066BPWR
1 14
I/O VDD
2 13
O/I CONT.A
3 12
R583
C553 O/I CONT.D
4 11
8.2k [USA] 1
I/O I/O
5.6k [EXP] 5 10
CONT.B O/I
6 9
CONT.C O/I
7 8
VEE I/O
DATAMOD
Q511
UNR9213J
R584
27k [USA]
8.2k [EXP]
R598
4.7k
RX: 4.7V
TX: 0V RX: 0.6V
TX: 0.6V
d RX400 f
RX: 0V RX: 6.0mV
Q28
TX: 4.5mV
TX: 0V
UNR9114J
e RX800 g
Q29
UNR9114J
BUS LINE2