Jul. 2008
9
SECTION
11
VOLTAGE
DIAGRAM
NOTE:
Refer to “PARTS LIST” for the value or component name.
C53
C139
Q16
C116
C61
C163
C51
C60
Q5
C58
C208
C119
Q17
L35
C66
C36
C164
Q6
C109
L33
C165
C120
C108
C209
C145
C129
C395
C143
D1
0
C182
C62
C162
Q7
Q20
C155
C152
C225
C132
X1
C65
C67
C111
C137
C166
C30
C206
C150
C221
L9
C174
D9
C50
C54
C107
Q22
C223
C117
C71
C188
Q21
C32
C141
C33
C154
C205
C43
C161
C105
C222
C52
C104
C153
C226
C42
C59
C57
C135
L3
7
C167
C186
D1
8
Q4
IC 9
1
OSCIN
2
OSCOUT
3
MIXOUT
4
VCC
5
IFIN
6
DEC
7
FILOUT
8
FILI N
9
AFOUT
10
QUAD
11
I FOUT
12
RSSI
13
N-DET
14
N-REC
15
GND
16
MIXIN
D1
3
D1
1
Q24
Q25
Q26
IC17
1
CTRL
2
GND
3
NB
4
VOUT
5
VI
N
C231
C232
C235
C237
C239
C234
C240
C184
C185
C158
C110
IC 6
2
3
1
C148
C159
C170
C241
C242
C48
D1
7
IC14
1
AGNDIN
2
AGND
3
TXIN
4
TXINO
5
LIMLV
6
EXTLMI N
7
MOD
8
VSS
9
TCLK
10
TDATA
11
DI/O
12
RDF/FC
13
SCLK
14
DIR
15
XOU T
16
XIN
17
VDD
18
EXPOU T
19
RXAFIN
20
RXAF
21
RXLPFO
22
RXINO
23
RXI N
24
TEST
MC1
C95
C112
C130
C26
C35
C34
C90
C98
X5
C64
C47
C314
C315
IC 6
6
5
7
IC6
9
10
8
C316
C317
C318
C319
C320
C321
C169
C160
IC15
1
NC
2
VCC
3
NC
4
VI N
5
RIPPLE
6
NF
7
PHASE
8
PREGND
9
PWGND
10
POUT
C322
C323
C325
C327
C328
Q42
C329
C330
C331
D28
C335
C337
C338
C339
C340
C345
C346
C347
C348
C349
C351
D6
IC8
1
OUT
2
VDD
3
VSS
4
NC
5
CD
C352
C354
C355
J5
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
C356
C359
C360
D24
D20
D19
C24
D15
D14
C368
D25
C371
C375
C376
C377
C378
C380
IC20
1
P1/S1
2
P2/S2
3
P3/S3
4
P4/S4
5
P5/S5
6
P6/S6
7
P7/S7
8
P8/S8
9
S9
10
S10
11
S11
12
S12
13
S13
14
S14
15
S15
16
S16
17
S17
18
S18
19
S19
20
S20
21
S21
22
S22
23
S23
24
S24
25
S25
26
S26
27
S27
28
S28
29
S29
30
S30
31
S31
32
S32
33
S33
34
S34
35
COM1
36
COM2
37
COM3
38
COM4
39
VDD
40
VLCD
41
VLCD1
42
VLCD2
43
VSS
44
OSC
45
IN
H
46
CE
47
CL
48
DI
C384
C386
C387
C388
IC21
1
CUTO
2
VCCRF
3
VPRF
4
CPORF
5
GND
6
FINRF
7
FINRF
8
GND
9
OSCX
10
OSCIN
11
FO/LD
12
RF_EN
13
IF_EN
14
CLOCK
15
DATA
16
LE
17
GND
18
FINRF
19
FINIF
20
GND
21
CPOIF
22
VPIF
23
VCCIF
24
OUT1
C390
C37
C393
C394
C397
C180
C402
C400
C398
C401
L48
C171
C175
C147
C136
C131
C46
C31
C168
C379
C332
C334
D8
C403
Q18
1
2
3
4
5
J4
1
2
3
4
Q27
1
2
3
4
5
6
J2
Q41
1
2
3
4
5
6
S1
R256
CP53
C303
CP58
C233
C326
C308
IC13
1
2
3
4
5
6
7
8
EP1
EP4
EP5
EP3
IC24
1
2
3
4
5
C404
IC23
6
5
7
IC23
2
3
1
IC19
6
5
7
IC19
2
3
1
C405
IC6
13
12
14
C406
D21
Q14
Q15
Q29
L41
L32
Q19
Q38
Q40
Q28
Q45
R315
C74
C72
IC16
1
2
3
4
5
C73
C78
C76
C77
DS3
1
SEG25
2
SEG26
3
SEG27
4
SEG28
5
SEG29
6
SEG30
7
SEG31
8
SEG32
9
SEG33
10
SEG34
11
COM1
12
COM2
13
COM3
14
COM4
15
SEG24
16
SEG23
17
SEG22
18
SEG21
19
SEG20
20
SEG19
21
SEG18
22
SEG17
23
SEG16
24
SEG15
25
SEG14
26
SEG13
27
SEG12
28
SEG11
29
SEG10
30
SEG9
31
SEG8
32
SEG7
33
SEG6
34
SEG5
35
SEG4
36
SEG3
37
SEG2
38
SEG1
CP68
CP69
Q3
Q2
1
2
3
4
5
6
D5
C408
C407
C309
C310
S5
S3
S4
S21
S22
S25
S26
S23
S24
S7
S9
S10
S11
S14
S15
S17
S18
S19
S13
CP45
CP4
CP3
CP46
CP1
DS1
DS2
CP2
C236
C140
R16
R75
R182
R35
R116
R89
R115
R43
R68
R34
R156
R86
R36
R91
R185
R92
R184
R157
R38
R69
R21
R25
R90
R7
8
R154
R70
R76
R80
R33
R29
R181
R48
R22
R98
R19
R15
R23
R24
R186
R101
R31
R40
R183
R77
R50
R39
R17
R175
R148
R172
R147
R174
R173
R103
R166
R162
R164
R161
R163
R165
R12
R107
R114
R119
R93
R106
R97
R209
R210
R211
R213
R214
R215
R216
R217
R218
R227
R228
R229
R233
R234
R237
R239
R243
R247
R257
R258
R259
R260
R261
R262
R263
R266
R267
R269
R13
R283
R288
R289
R291
R300
R301
R302
R303
R306
R304
R307
R74
R73
R282
R123
R235
R236
R224
R295
R309
R223
R221
R205
R204
R203
R292
R293
R1
R222
R321
R323
R325
R327
R329
R331
R333
R335
R336
R337
R338
R339
R340
R341
R342
R343
R344
R319
R318
R320
R345
R346
R347
R348
R349
R351
R350
R352
R353
R354
R355
R356
R357
R358
R359
C357
C302
R18
C409
L2
5
C333
C75
IC10
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
L43
X6
L11
C156
R361
C336
C125
R117
C128
R111
R124
C151
C63
D16
C183
R272
C157
R360
R121
T5V
J6
1
2
3
4
5
APC
TX
CP70
CP71
C412
C29
C100
C113
C142
R122
C115
R104
C211
C56
L22
R82
C22
R7
1
L21
R273
C324
C17
C414
S27
C1
1
C2
2
1
3
2
4
4
5
8
6
IC22
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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
IC12
1
VIN1
2
VOUT1
3
VOUT2
4
VIN2
5
VDD
6
LD
7
CLK
8
DI
9
VIN3
10
VOUT3
11
VOUT4
12
VIN4
13
VIN5
14
VOUT5
15
VOUT6
16
VIN6
17
DO
18
VDAREF
19
RESET
20
GND
21
VIN7
22
VOUT7
23
VOUT8
24
VIN8
R509
R508
FI2
I O
L46
L12
C45
R79
R83
R85
R84
L27
C123
R151
R512
R511
R513
R510
R270
C411
C353
R130
R131
C176
C177
C238
C124
R108
R264
R265
R120
R514
R507
R45
R46
R44
C69
C396
C114
R225
R226
R245
C350
C18
L31
EP11
R515
R246
C106
IC25
1
2
3
4
5
R362
R516
EP6
CP5
Q44
C312
C399
R518
D23
R231
R100
C70
R72
R81
R519
Q46
C39
R96
C193
R5
R6
R9
C79
C80
C416
L13
R520
R521
R152
R219
C172
C417
R220
R522
C418
Q502
R118
R240
R241
R242
R244
R275
R95
C419
L49
C420
L47
L28
L42
R523
R524
C423
C424
J7
C40
C41
C413
C19
C44
C49
C121
C122
C27
C369
C415
C134
C126
C192
R87
R88
R8
R281
R14
R7
R4
L7
L8
C133
R127
C191
R305
R110
C21
C28
C25
Q43
Q503
MP 1
1
2
3
CP62
CP63
CP64
CP65
CP66
CP67
C146
C425
X2
1
VCON
2
GND
3
OUT
4
VCC
FI1
1
IN
2
OUT
3
GND
4
GND
5
6
R308
C118
C103
C102
R525
R527
IC6
V+
4
GND
11
IC19
V+
8
GND
4
IC23
V+
8
GND
4
S2
D506
C421
C422
C149
R238
D12
J3
R32
C138
T2
NOIS
TLVA
RLVA
T1
T2
DAST
SCK
SO
MTCK
MTDT
MDI
O
MRDF
MDIR
MSCK
M RDF
PTTI
N
PTTOUT
MICOUT
MICI
N
AFOUT
AFOUT
DISCIN
SIGOUT
BUSY
OPV1
OPV2
OPV3
CLO
S5C
R5C
T5C
RSSI
BEEP
MSCK
PMFM
KS4
KS0
KS1
KS2
KS3
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
COM1
COM2
COM3
COM4
CL
I
SIGOUT
KS4
SO
ULCK
CDEC
CDEC
MDIO
KRT0
KRT1
KRT2
KRT3
MICOU T
AUTX
PTT
SO
OPT3
OPT2
OPT1
BAL
TLVA
KRT2
KRT0
KRT3
TONE
LVIN
CCS
SCK
KR0
SDEC
DAST
MTCK
M DIR
OPT1
OPT2
CL
I
RES
KR1
KR2
KR3
KS0
KS1
KS2
KS3
BUSY
CCS
BEEP
TMUT
S5C
T5C
R5C
CLI
CLO
CIRQ
SCK
SO
OPV3
OPV2
OPV1
CENC2
CENC1
CENC0
CENC0
CENC1
CENC2
MD2
CIRQ
OPT3
OPT1
OPT2
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
COM4
C
OM3
COM2
COM1
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
RES
MD2
OPV2
OPV1
PWRI
PWRO
PWRO
PTT
AUTX
PWRI
PWRO
AFON
SCK
PLST
PLST
SI
MMUT
RMUT
RMUT
MMUT
KR0
KRT1
MOD
REF
LVIN
MTDT
RSSI
RSSI
ULCK
NOIS
NOIS
KEY
KEY
T1
GND
P_DE
T
MOD
BAL
KR1
KR2
KR3
SI
PTTOUT
MICIN
P TTIN
TX
S5V
T5V
T5V
DISCIN
PMFM
RLVA
VCC
VCC
AFON
TMUT
RSSI
SENC
T2
APC
APC
MUTE
MUTE
KEYKEY
REF
+5V
AGC
RF AMP
MIX
IF AMP
IF IC
RX VCO
TX VCO
REF
*3 MULTI
+5V
S5V
+5V
R5V
VCC
T5V
R5V
+5V
AFOUT
CLONE
SP
CTCSS/DTCS
+5V
CSFT
BATV
LCD
R5V
VCC
VCC
+5V
S5V
R5V
T5V
+5V
S5V
T5V
VCC
to DISCIN
GND
+5V
VCC
M ICMUTE
AFONOP
BEEPOUT
RXMUTE
DISCIN
REM
CCS
CIRQ
SO
SI
SCK
PTTIN
PTTOUT
MICOUT
MICIN
AUX
BUSY
MDW N
SIGOUT
OPT1
OPT2
OPT3
GND
OPV3
OPV2
OPV1
from AFOUT
AFOUT
+5V
TONE
+5V
DUS E
BEEPOUT
AutoTX
DTMF
Enc
TONC
DEVT
MOD
SQLC
RX
From PA UNIT
PTT SW
Vcc
T5V
APC
FLASH WRITE
(REMO)
AFONOP
P0
P1
P2
P3
2
4
56
7
8
9
0
*
#
Cad 921 x6
+5V
S5V
BA L
KEY
UP
DOWN
MONI
EMER
VCC
3
1
+5V
C
D
F
G
A
Y
Y
X
To PA UNIT
