92
*
*
*
*
*
*
*
*
*
MDC TX ONLY
*
2.5Vdc
2.5Vdc
3.8Vdc
VCO MOD ATTENUATOR RATED 200mVpk-pk/kHz
PL ONLY
MDC ONLY
ASFIC
HearClear Option
*
PL ONLY
3.7Vdc
200Hz RX MDC ONLY
*
Hear
Clear
*
*
*
*
*
*
*
*
*
*
*
*
*
*
C611
4.9Vdc
0 Vdc
4.9Vdc
RATED 2.5Vdc
282mVpk-pk/kHz
2.5Vdc
C801
33pF
C800
C682
33pF
0.1uF
C714
C713
0.1uF
VDD
C6
VOXO
E1
XTALIN
E2
XTALOUT
C779
0.1uF
G1
C7
TXIN
H5
UNATRXOUT
B2
UNIVIO
D1
UPCLK
VAGCAP
E7
D8
VAGOUT
H8
VCOATN
C2
RSSI
J4
RXAUDOUT
H6
RXIN
J3
RXLIMCAP
G4
RXLIMOUT
H1
SQDET
H7
SQIN
TIMINGCAP
H3
TRKCLKIN
B8
MICIN
F2
PGMENAB
C3
PLCLK
J7
PLIN
A4
PLLIM
C8
PREMP
G7
REFATN
J2
RESET
G8
GND8
F5
GND9
A5
LCAP
E8
LIMIN
C1
LOOPCAP
C5
LOWSPCAP
B1
MDCREF
A6
MICAMPOUT
G6
GND13
F3
GND2
G3
GND3
D4
GND4
E4
GND5
F4
GND6
D5
GND7
E5
B3
GCB3
A2
GCB4
C4
GCB5
B7
GNDA
D2
GNDD
D3
GND1
G5
GND10
E6
GND11
F6
GND12
B6
DCAP
G2
DTMFCLK
J5
EXPAUDIO
A7
EXTMICIN
H4
EXTVOLIN
B5
GCB0
A3
GCB1
B4
GCB2
J6
D7
AUXTXIN
F8
BIASRES
D6
BUFFDISC
H2
CHACT
F1
CLK
F7
DACO
E3
DATA
U701
AUXRXIN
C679
C686
C683
R625
.022uF
C702
R621
C720
0.1uF
2K
R756
100pF
390nH
C721
L710
C787
R620
C684
Vcc
R702
470
R626
Vcc
C718
0.1uF
C608
C685
R622
C677
C705
0.1uF
R703
2K
470
RSSIIN
3
VAG
32
VCC
R701
NC
5
NC1
13
NC2
10
NC3
12
NC4
NFILIN
7
8
NFILOUT
11
NOISHLD
15
18
16
FFIN
17
FFOUT
1
GND
6
HCIDSAB
28
HIENAB
23
ICENAB
4
LODSAB
29
COMPCAP
COMPOUT
19
25
CPNENAB
30
EXPADJ
26
EXPBYP
27
EXPIN
31
EXPOUT
14
FFCNTL
FFENAB
U601
22
CBUFIN
21
CBUFOUT
20
CFBBYP
9
CLIPREF
24
COMPBYP
23
0.1uF
C678
C710
0.22uF
C706
C609
C680
C715
.01uF
Vcc
C681
10K
R755
.01uF
470pF
C777
C719
47K
R712
C674
C688
.01uF
C675
.01uF
C716
C780
SB+
0.1uF
C701
R726
390nH
L701
330pF
C775
C778
100pF
R628
1uF
C776
0.1uF
C732
100pF
C735
C703
.022uF
4.7K
R704
C717
0.1uF
C708
0.1uF
C712
4.7uF
C711
47.5K
R729
C707
R623
R624
EXT_MIC
COMP_EN
COMP_EN
AUPA_EN
AUPA_EN
LODSAB
LODSAB
EXT_SPKR_SEL
EXT_SPKR_SEL
HCI_DIS
HCI_DIS
HI_CLMP_EN
HI_CLMP_EN
VCO_MOD
VCO_MOD
FF_EN
INT_MIC
C736
VOX
UNIV_IO
UNIV_IO
2.1_MHz
PWR_RST
PWR_RST
SCK
SCK
ASFIC_SEL
AUX_RX
AUX_RX
SQIN
RX_DATA
RX_DATA
J702_7
RX_IN
DISC
LG_DTMF
LG_DTMF
PL_TX
PL_TX
TX_DATA
TX_DATA
RX_AUDIO
ASFIC_MIC_AUD_out
ASFIC_MIC_AUD_out
RSSI
UPCLK
UPCLK
CHACT
CHACT
SQ_DET
SQ_DET
PL_RX
PL_RX
MDC_REF
MDC_REF
DATA
DATA
VOX
63B81097C09-O
NCN6129C, NCN6138A, NCN6140A/B, NCN/PMCN6140C, NCN6141A, NCN6145A/C, NCN6146A,
NTN7089C AND PMCN6140C CONTROLLER BOARD ANALOG SECTION SCHEMATIC DIAGRAM
Summary of Contents for SYMBOL MT2000 Series
Page 1: ...HT 1000 JT 1000 MT 2000 MTS 2000 and MTX Series Handie Talkie Portable Radios Service Manual ...
Page 2: ......
Page 24: ...2 Notes ...
Page 78: ...56 Notes ...
Page 147: ...Appendix A 9 Appendix Figure 2 Secure Module Location Detail ...
Page 169: ......