Icom IC-M803 Service Manual page 78

• PA UNIT
J6101
R6101 LR-360 C6103
YGR
39
L6102
P8V
J6703
3.3
L6703 100U
KEY 1
L6704 100U
START 2
EP6605 EP6606
3
13.6
ANTC/GND 4
EP6607 EP6608
MPZ2012S221A x4
MPZ2012S601A
EP6604
LDTC143ZE
Q6701
J6701
PON
PON
1
PHV
PHV
2
PHV
PHV
3
P14V
P14V
4
P14V P14V
5
P14V
P14V
6
P14V
P14V
7
P14V
P14V
8
P14V
P14V
9
P14V
P14V
10
P14V
KEYS KEYS
11
STAT
STAT
12
ANTC
ANTC
13
GND
GND
14
GND
GND
15
GND GND
16
GND
GND
17
GND
GND
18
P8V
P8V
19
PDICL L6707 100U
PDICL
20
PFANV
PFANV
21
PPID1V PPID1V EP6609 MPZ1608S601A
22
PDID1V EP6610 MPZ1608S601A
PDID1V
23
PDID2V EP6611 MPZ1608S601A
PDID2V
24
PFID1V EP6612 MPZ1608S601A
PFID1V
25
PFID2V EP6613 MPZ1608S601A
PFID2V
26
PFID3V PFID3V EP6614 MPZ1608S601A
27
PFID4V EP6615 MPZ1608S601A
PFID4V 28
THRM L6702 100U
THRM
29
PFICL L6501 100U
PFICL
30
2SD1664G
Q6501
J6501
R6510
220
7
FAN+ 1
2
GND
IC6101
NJM2904CRB1
R6108
560 C6201
RD06HVF1 0.1
Q6101
L6101
0.1
LR-361
C6202
0.1
P8V
P14V
IC6503
1 6
REF OUT
2 5
GND IN-
3 4
V+ IN+
2
INA199A2
3
C6701
2
L6708
0.1
3
680U
R6706
100K
R6707
Q6702
22K
TJ50S06M3L
6
At 25 ºC (77 ºF)
5
0.3
P8V
P14V
6
5
8 8 8 8
V+ V+ V+ V+
GND GND GND GND
4 4 4 4
R6207
82
Q6201
RD15HVF1
L6201
1 6
3
2
4 5
LR-530
Q6202
RD15HVF1
R6208
82
MPZ2012S101A
EP6203
4.5
*
0
4.7
R6112 *
0
3.3k
R6111
1
4.5
4.6
*
4.8
100
*
IC6101 0 0
NJM2904CRB1 0
R6424 R6426
NTCG16 R6402
R6212
4.7k
2
R6401
4.7k
1
R6211
3
1
100
IC6401
100 NJM2904CRB1
IC6201
NJM2904CRB1
R6425
NTCG16
R6406
R6216
4.7k
6
4.7k
R6405
7
R6215
7 5
100
IC6401
100
IC6201 NJM2904CRB1
NJM2904CRB1
P14V
P8V
11-12
R6322
C6335
22
1
C6313 R6323
R6318 0.1
22
RD100HHF1C
47
Q6304
C6309 R6319
2.2
0.1
R6310 C6333
C6331
1 RD100HHF1C
47
1 Q6303
R6311
C6303
2.2
0.1
L6301
LR-580
C6304 R6313
0.1 2.2
C6332
Q6302
R6312 C6334
1
RD100HHF1C
1
47
C6312 R6320
0.1 2.2
R6321
Q6301
RD100HHF1C
47
C6314
R6324
0.1
22
C6336
R6325
1
22
*
4.5
*
0
4.6
R6412
*
NTCG16
0
4.7k
2
R6411
1
3
IC6402 100
NJM2904CRB1
R6427
NTCG16
IC6502
1 6
R6416
REF OUT
2 5
GND IN-
3 4
4.7k V+ IN+
6
R6415
7
INA199A2
5
100
IC6402
NJM2904CRB1
R6504
1K
P14V
Measuring condition:
• Frequency: 12.23 MHz
• Mode: J3E (USB)
• RX: No signal is received.
• TX: No modulation signal is applied.
• Waveforms are measured by
an oscilloscope.
Voltage notation:
Explanatory notes
TX Line
RX Line
Voltage Line
*:Reference value
J6401
L6408
FLIN
LA-262
L6302
1
2
5
3
4
LR-609
13.6
EP6603
F4053A
HV13V
1
HV13V
2
HV13V
3
HV13V
4
EP6602
F4053A
GND
1
GND
2
GND
3
GND
4
(unless otherwise noted)
TX
Unit: Volt
RX
RX