Icom iV86 Service Manual Addendum page 76

• MAIN UNIT (3/3)
+5V
S5V
T5V
+3.3V
VCC
MAIN UNIT
(1/3)
MICIN
AFO
ATX
+5V
EP700
J700
MMZ1005Y102CT
[MIC] EP701
MMZ1005Y102CT
MC700
1 4
VDD OUT
2 3
GND GND
SPU0410HR5H
Q704
DTC014YEB
RX:
Transceiver's PTT ON: 3.4 V
External PTT ON:
IC817
TLV9002IDGK
8
V+
V-
4
C814
1
Explanatory notes
TX Line
RX Line
Voltage Line (HV)
Voltage Line (VCC)
Voltage Line (+5V)
Voltage Line (+3.3V)
CP700 HV
Battery +
CP06S
Battery − CP701
CP06S
C806
150P
IC701
1
GAIN1
2
GAIN2 GAINSW
C745 3
DET INT
R725
1 4
OUT SENSE
5
39k
BUFFIN VREF
6
BUFFGAIN
7
BUFFOUT GND
NJM2783V
C741 R788 C798
Q703
DRA9123Y0
270P 10k 1
R726 R734 C747 R784
33k 39k 4.7k
1
RX: 0 V
Transceiver's PTT ON: 0 V
External PTT ON: 2.8 V
PTT
DET
0 V
Q721
LMUN5213DW1
0 V
MIC gain mic.1 mic.2 mic.3
MIC1 3.3 V 0 V 3.3 V
When the squelch is closed: 3.3 V
Other than the above: 0 V MIC2 3.3 V 3.3 V
R703
C703
1 82k
C815 C702 R803 R702 C708
0.1 0.033 560 5.6k 0.0039
R708
33k
2
C711
1
3
1
IC817
TLV9002IDGK
VCC
VCC
Battery monitor
BATV
Q722
UT6401G
Q712
DTC014YEB
PWON
Transceiver power
ON: 3.3 V
Q723
D711 OFF: 0 V
RUM002N02
POSW
[ ]
RB751CM
S700
KEY
C799 R727 C807
MICIN
1 1
1.2k
C809
1
14
IN
13
12
11
10
9
V+
8
R733
150k
R735 C748 C750 C752
6
D705
R723 C740
7
1k 1 0.1 0.1
5
1
10k L1SS400
IC817
TLV9002IDGK
mic.4
0 V
0 V 0 V
R804
68k
C744 R795 R796
AFVO
0.027 39k 82k
R797
Electronic volume 47k
IC702
1 8
VIN1 VIN2
2 7
VOUT1 VOUT2
3 6
GND VCC
4 5 VCL
DATA CLOCK
U2429G
R720
1k
Q705
DTC014YEB
When the Power Save function is ON:
See the IC-V86/IC-U86 ADVANCED MANUAL
for the duty cycle.
Other than the above:
9-3
5.0 V
VCC +3.3V T5V S5V +5V
When the Power Save function is ON:
5.0 V
0 V
See the IC-V86/IC-U86 ADVANCED MANUAL
for the duty cycle.
Other than the above:
IC818
1 5
VIN VOUT
2
VSS
3 4
NC CE
XC6701B502MR
+3.3 V DC/DC (3.376 V)
IC707
C769
1 6
GND VBST
2 5
0.1
SW EN
3 4 R767
VIN VFB
22k
TPS561201
R759
10k
When the squelch is closed: 3.3 V
Other than the above:
R729
100
IC706 Audio amplifier
ISD8102SYI
1 8
Shutdown VOUTN
2 7
5 VREF GND
3 3 6
MODE VDD
C802
4 4 5
VIN VOUTP
1
1
IC819
2
NJU7056F3
Q707
R752
2SB1132G
100k When an external speaker is:
Connected:
Not connected: 5.4 V
Q711
DTC014YEB
AF
R745
3.9k
When an external speaker is:
Connected: 1.0 V
Not connected: 0 V
3.0 V
0 V
0 V
* Refer to the PARTS LIST for the value and name of component.
+5V
S5V
T5V
+3.3V
VCC
TX : 4.9 V POSW
RX : 0 V 7.5 V 3.4 V
PWON
CL
TXC
XPTT
VOXV
MAIN UNIT
(2/3)
S5C
0 V VCL
VDT
BEEP
AFON
+3.3V RMUT
+5V
S5V switch
S5V BATV
T5V switch
Q717
T5V
2SAR502UB
MIC1
MIC2
Q720
2SAR502UB
TXC
Q718
DTC014YEB
S5C
Q716
DTC014YEB
5 V/3.3 V
0 V
MP4
1 2
3 4
3620
EP702
MPZ1608S601A
J701
[SP]
6.6 V
CL