Icom iV86 Service Manual Addendum page 47

(Amended page)
April 2020
• MAIN UNIT (for IC-V86 and IC-V86-T) (3/3)
+5V
+5V
S5V
T5V
+3.3V
+3.3V
VCC
MAIN UNIT VCC
(1/3)
MICIN
AFO
ATX
+5V
J700 EP700
MMZ1005Y102CT
EP701
[MIC]
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
8 TLV9002IDGK
V+
V-
4
C814
1
VCC
+5V
Explanatory notes
TX Line
RX Line
Voltage Line
CP700 HV
Battery +
HV
CP06S
Battery − CP701
CP06S
+5V
C806
150P
IC701
1
GAIN1 IN
2
GAIN2 GAINSW
C745 3
R725 DET INT
1
4
OUT SENSE
5
39k
BUFFIN VREF
6
BUFFGAIN V+
7
BUFFOUT GND
NJM2783V
C741 R788 C798
Q703
DRA9123Y0
1
270P 10k
R726 R734 C747 R784
33k
39k 1 4.7k
RX: 0 V
Transceiver's PTT ON: 0 V
External PTT ON: 2.8 V
PTT
DET
R723
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
MIC2 3.3 V 3.3 V 0 V
Other than the above: 0 V
C703 R703
1 82k
C815 C702 R803 R702 C708
0.1 0.033 1.5k 5.6k 0.0039
R708
33k
Electronic volume
2
C711
1 1
3 2
1
3
IC817
TLV9002IDGK 4
VCC
The underlined parts have been updated from the previous version of the addendum, or from the original page.
+5V
+3.3V
VCC
VCC
VCC
Battery monitor
BATV
Q722
UT6401G
Q712
DTC014YEB
PWON
Transceiver power
ON: 3.3 V
Q723 OFF: 0 V
D711
RUM002N02 POSW
[ ]
S700 RB751CM
KEY
C799 R727 C807
MICIN
1 1.2k 1
C809
1
14
13
12
11
10
9
8
R733
150k
R735 C748 C750 C752
6
D705 C740
7
1k 1 0.1 0.1
5
10k L1SS400 1
IC817
TLV9002IDGK
mic.4
0 V
0 V
R804
68k
C744 R795 R796 5
AFVO 3
0.027 82k
33k R797
1
47k
2
IC702
8
VIN1 VIN2
7
VOUT1 VOUT2
6
GND VCC
5 VCL
DATA CLOCK
U2429G
R720
1k
Q725
RUM002N02
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:
8-3a
TX : 4.9 V
5.0 V RX : 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
VCC VIN VOUT +5V
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 R767
4
VIN VFB
22k
TPS561201
R759
10k
5 V/3.3 V
When the squelch is closed: 3.3 V
Other than the above:
R729
100
IC706 Audio amplifier
C818 C819
ISD8102SYI
1 8
1 1
Shutdown VOUTN
2 7
VREF GND
3 6
R809 C817
C802 MODE VDD
4 4 5
VIN VOUTP
1 1
100
IC819
NJU7056F3
Q724
RUM002N02
Q707
R752
2SB1132G
When an external speaker is:
100k
Connected: 6.6 V
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
+5V
+5V
S5V
T5V
+3.3V
+3.3V
VCC
VCC
POSW
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
0 V
MP4
1 2
3 4
3620
EP702
MPZ1608S601A
J701
[SP]
CL