Icom IC-M802, Service Manual

Page: 69 / 79

11 - 1
SECTION 11 VOLTAGE DIAGRAMS
11-1 RC-21 and HM-135
C8218 10
1
2
3
4
5
6
7
8
J8701
MIC
C8222 0.0047
R8701 33
R8702 33
PMUT
PHE
PHO
L8701
10
µ
R8703 100k C8219 10
R8704
100
DSTK
CSCK
DALK
TUNK
MODK
SETK
EMLK
T1K
T2K
T3K
T4K
T5K
T6K
T7K
T8K
T9K
ENTK
T0K
FCHK
RXK
TXK
FUNK
DISTRESS
/CALL/ALM
DSC/CALL
/CHO/SELCALL
CANCEL
/TELCAL/TXF
MODE(DIM)
SET
e-mail
/DSC/TS(ALE)
1(NB)
2(SQL)
3(SCAN)
4(SP)
5(AGC)
6(RF-G)
7(LO)
8(MID)
9(HI)
ENT
0
FREQ/CH
RX(CLAR)
TX(TXF)
FUNC
CP8201 GPB
CP8202 GPA
CP8203 GND
CP8204 CHB
CP8205 CHA
CP8206 GND
R8230 47k R8231 47k
R8232 47k
R8233 47k
Q8340
2SC4116
R8341 470
R8340 22k
DS8340
DS8341
R8343 470
Q8341
2SC4116
R8342 22k
R8344 22k
Q8342
2SC4116
R8345 470
DS8342
R8346 56k
Q8343
2SC4116
R8347 390
DS8344
DS8343
R8348 68k
Q8344
2SC4116
R8349 330
DS8347
DS8346
DS8345
DS8348
DS8349
DS8350
R8351 330
Q8345
2SC4116
R8350 68k
DS8340-DS8350
SML-311YT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
DISTRESS
LED
POWER
LED
R8352 100k
W8340
C8223 0.0047
AF1
AF2
R8247
22
C8216 10
PTT
MIC
MISW PTTE
C8226 0.0047
L8202 10
µ
L8203 10
µ
W8201
W8202
D8204
1SS355
D8205
1SS355
R8224 47k R8225 18k
R8226 1.8k
R8227 10k
C8244 10 C8241 22
R8235 3.3k
R8223 47k R8237 68k
C8242 0.0047
C8243 47 R8222 1k
R8236 100
D8701
1SS355
R8260 10k R8705 1M
1
2
3
4
5
6
7
I/O1
O/I1
O/I2
I/O2
CONT2
CONT3
VSS VDD
CONT1
CONT4
I/O4
O/I4
O/I3
I/O3
14
13
12
11
10
9
8
IC8260
TC74HC4066AF
C8260 0.0047 R8263 47k
R8254
33k R8253
6.8k D8250
1SS355
IC8250
TC7W04F
C8250 0.01 R8252 100k R8250 100k
R8255 47k
R8211 47k
R8212 47k
R8213 47k
NC
VCC
NC
VIN
RIPPLE
PREGND
PWGND
POUT
PHASE
NF
R8270 680 C8373 0.1 R8373 680
IC8270
TA7368F
C8274 100
C8277 100
R8284
56k R8285
470
R8276
1k
IC8280
NJM2904M
2
3
1 -
+
R8282 120k
C8288 0.0047
C8282 10
Q8281
2SC4116
R8278
12k
R8279 22k
R8287
10k
R8289 1.5k
R8288 1.8k
Q8280
2SC4116
R8280
10k
R8281
100k
C8283
10 R8283
1k
C8284
2.2
W8281
W8280
R8274
68k
C8286
47
R8275
3.3k
D8280
DA221
C8285 10
Q8282
DTC114EU
C8280 22
C8281 0.0047
C8289 0.0047
L8286
10
µ
V+
GND
8
4
IC8280
NJM2904M
C8287
4.7
CP8201
CP8202
CP8203
CP8204
CP8205
CP8206
GPB
GPA
GND
CHB
CHA
GND
S8801
TP90N937E20-15F-1540
S8802
TP90N937E20-15F-1540
GROUP DIAL
CHANNEL DIAL
B
A
COM
A
COM
B
SENSOR BOARD
CP8209
CP8208
CP8207
VR5V
VOL
GND
R8901
TP96N97
VOLUME
CP8208
CP8209
CP8207 GND
VOL
VR5V
VR BOARD
FMOD
FMODG
GND
FAF
FAFG
H13V
TXD
RXD
GND
GND
FMOD
FMODG
GND
FAF
FAFG
H13V
TXD
RXD
GND
GND
FMOD
FMODG
GND
FAF
FAFG
H13V
TXD
RXD
GND
GND
J8602 J8903 J8601
JACK BOARD
R8291
1k
EP8295
EP8294
EP8296
EP8292
EP8293
W8296
C8271 0.0047
C8270 100
L8270
100
µ
FE1
W8270
W8271
Q8260
DTC114EU
R8229 10k
R8203 47k R8202 47k
C8202 100 C8201 0.1
R8204
47k
L8201
10
µ
R8216 47k
R8206 47k R8207 47k
D8201 DA221
D8203 DA221
R8239 1k R8240 1k
OUT
VDD
VSS CD
NC
C8208 0.1
R8209 100k
C8209 0.01
IC8202
S-80942CNMC-G9C
C8220
0.47
R8210
47k
C8205 0.01
X8211
CR-636A
C8207 12p
C8206 12p
R8201 47k
R8215
47k
O I
G
C8292 0.1 C8293 47
IC8290
TA7805F
C8291 0.1 C8290 47
O I
C8304 47
G
C8303 0.1 C8302 0.1
IC8301
AN8010M
C8301 47
R8290 10
O I
C8313 47
G
C8312 0.0047 C8311 0.0047
IC8310
TA7808F
C8310 47
C8203 0.1
R8301 47
R8300
3.9k
DS8302 DS8305 DS8308 DS8311
DS8301 DS8310 DS8307 DS8304
DS8300 DS8309 DS8306 DS8303
R8303 47
R8302
3.9k
DS8314 DS8323 DS8320 DS8317
DS8313 DS8322 DS8319 DS8316
DS8312 DS8321 DS8318 DS8315
Q8300
2SD1619
Q8301
2SD1619
R8214 47k
R8241
100k
W8242
W8238
-
+
7
6
5
IC8280
NJM2904M
R8243 100k
R8707
1k
R8708
NTCG16
R8706
100
CP8240 CP8239 CP8236 CP8235 CP8234 CP8233 CP8232 CP8231
CP8221 CP8222 CP8223 CP8224 CP8225 CP8226 CP8227 CP8228 CP8229
CP8241
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
R8242
2.2M
R8245 47k R8243 47k
R8244 47k
C8230 0.1
C8231 0.1
C8232 1
C8233 1
C8234 1
C8235 1
C8236 1
R8241
1.8M R8246
1.8M
C8237
0.1
LCL1
LRES
LCS
LRS
LWR
LRD
LDB0
LDB1
LDB2
LDB3
LDB4
LDB5
LDB6
LDB7
L8221 10
µ
L8220 10
µ
GND1
VLCD1
VCC1
V5O
V4O
V3O
V2O
V1O
GREF
IREFM
IREFP
VLCD2
VLCD3
VCC2
GND2
GND3
VCC3
OSC1
OSC2
OSC
CO
DCON
CL1
FLM
M
M/S
RES
CS
RS
WR
RD
VCC4
GND4
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
VCC5
GND5
VCC6
VLCD4
GND6 COM100
COM99
COM98
COM51
SEG160
SEG159
SEG158
SEG3
SEG2
SEG1
COM50
COM49
COM3
COM2
COM1
IC8240
HD66421TBO
DS8220 HLC7700-018800
LCD
CONNECT BOARD
LCL1
LRES
LCS
LRS
LWR
LRD
LDB0
LDB1
LDB2
LDB3
LDB4
LDB5
LDB6
LDB7
9V
5V
GND
GND
CL1
RES
CS
RS
WR
RD
GND
GND
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7 9V
5V
GND
GND
CL1
RES
CS
RS
WR
RD
GND
GND
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
RES
XTAL
EXTAL
MD1
MD0
NMI
STBY
VCC2(VCL)
SCK0/P52
RXD0/P51
TXD0/P50
VSS
WAIT/P97
EXCL/P96
IOS/AS/P95
HWR/P94
RD/P93
IRQ0/P92
IRQ1/P91
ADTRG/IRQ2/P90
P60/FTCI/CIN0/KIN0 P61/FTOA/CIN1/KIN1 P62/FTIA/CIN2/KIN2/TMIY P63/FTIB/CIN3/KIN3 P64/FTIC/CIN4/KIN4 P65/FTID/CIN5/KIN5 P66/FTOB/CIN6/KIN6/IRQ6 P67/CIN7/KIN7/IRQ7 AVCC P70/AN0 P71/AN1 P72/AN2 P73/AN3 P74/AN4 P75/AN5 P76/AN6/DA0 P77/AN7/DA1 AVSS P40/TMCI0/TXD2/IRTXD P41/TMO0/RXD2/IRRXD
SCK1/IRQ5/P86 RXD1/IRQ4/P85
TXD1/IRQ3/P84
P83 P82 P81 P80
VSS
D7/P37 D6/P36 D5/P35 D4/P34 D3/P33 D2/P32 D1/P31 D0/P30 A0/P10 A1/P11 A2/P12 A3/P13
P14/A4
P15/A5
P16/A6
P17/A17
VSS
P20/A8
P21/A9
P22/A10
P23/A11
P24/A12
P25/A13
P26/A14
P27/A15
VCC1
P47/PWX1
P46/PWX0
P45/TMRI1
P44/TMO1
P43/TMCI1
P42/TMRI0/SCK2
IC8201
HD64F2134AFA20
DISPLAY BOARD
MI
FE1
AFIN
LRXD
LTXD
FP
MCE
MC
M2
GPB
GPA
CHB
CHA
R8234
1k
EP8205
FUNK TXK RXK FCHK TOK ENTK FP
M1
M2
M1
CLONE
R8221 1k
R8218 1k
R8219 1k
C8214 0.0047 C8211 0.0047 C8212 0.0047 C8210 0.0047
R8246 47k
C8204 0.1
MCE
MC
FE1
AFIN
MI
PHE AF
FZ5V
FZRX
FZTX
FZRS
FZMD
FZ5V
FZRX
FZTX
FZRS
NC
FZMD
NC
GND
GND
GND
J8902
J8205 J8220
FZTX
FZRX
FZMD FZRS
GPB GPA CHB CHA
DSTK CSCK
DALK
TUNK MODK
SETK
EMLK
T1K T2K T3K T4K T5K
T6K
T7K
T8K
T9K
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
CS
RES
WR
RD
RS
CL1
to IC-M802 MAIN unit J2051
J8702
HEADPHONE
/CLONE
3
2
1
3
2
1
POWER
TUNE
(THRU/METER)
C8261 22
MICE
AFE
C8221 0.0047
AF
1
2
3 5
4 DS3800-DS8311
TLYU1002
1
2
3
4
5 10
9
8
7
6
R8208 56k
1
2
3
4
8
7
6
5
6 5 4
1 2 3
Q8251
XP4601
R8251 18k
5V 5V
5V
5V
R8205 10k
FZ5V
L8206 HF50ACC322513-B
DS8312-DS8323
TLYU1002
306
305
304
257
256
255
254
99
98
97
96
95
49
48
47
CL1
RES
CS
RS
WR
RD
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
5V
DIMMER
C8295 100p
C8294 1000p
C8297 0.0047
LRXD
LTXD
C8300 47p
C8299 47p
L8290
HF50ACC322513-B
C8298 0.0047
8
7
6
1
2
3 5
4
MICE(SHIELD)
(BLACK) PTT(RED) SW(GREEN) MOD(YELLOW)
S1
SKHHAMG24A
R2
33k
S1
SKHHAMG24A
P
SW UNIT
CHASSIS UNIT W1
MAIN UNIT
R3
6.8k
UP
S2
SKHHAMG24A
R4
15k
DN
S3
SKHHAMG24A
R1 12k
C1 470p
W1
W2
MC1
HM-135
4.95V
6.42V
1.97V
1.91V
1.98V
1.92V
12.9V
10.11V
7.83V
4.73V
4.73V
MESUREMENT CONDITIONS
frequency: 12.29 MHz
mode: J3E(USB)
*ANT(RX): no input
(TX): no modulation
Digital tester
unit: V
range: 20V
input impedance: 10M
Ω
no specification : voltage at RX