Motorola Two Way Portable Radio Ht1000 Jt1000 Mt2000 Mts2000 Mtx Series 6881200c75 B Manual

							109
REFERENCE
SYMBOLMOTOROLA
PART  NO .DESCRIPTION
3Pack.xls
(Sheet 23)CAPACITOR, Fixed: pF ± 5%; 50V 
unless stated
C700 thru 708 2113931F17 470
C709 2113743A23 0.22µF
C710 2311049J11 4.7µF
C711 2311049A07 1µF
C712, 713 2113743A19 0.1µF
C714, 715 2113932K15 0.1µF
C716, 717 2113741A45 10nF
C718 2113932K15 0.1µF
C719 2311049A01 0.1µF
C720 2113931F49 10nF
C721 2113932K15 0.1µF
C722 2311049A09 2.2µF
C723 2113743A23 0.22µF
C724 2113930F36 24 (NCN6106C, NCN/
PMCN6153A/B)
2113930F44 51 (NCN/PMCN6176A)
C725 2311049A07 1µF
C726 2113743F12 0.33µF
C727 2311049A07 1µF
C728 2113743F12 0.33µF
C729 2311049A07 1µF
C730 2113931F41 4700
C731 2113932K15 0.1µF
C732 2311049A57 10µF
C733 2113932K15 0.1µF
C734 2311049J23 10µF
C735 thru 738 2113931F17 470
C739 2113930F39 33
C740 thru 742 2113931F17 470
C743 2113741A49 15nF
C744 2113931F49 10nF
C745 2113930F39 33
C746 thru 757 2113931F17 470
C758 2113932K15 0.1µF
C759 thru 761 2113931F17 470
C762 2113932K15 0.1µF
C763 2113930F36 24
C764 2113930F36 24 (NCN6106C, NCN/
PMCN6153A/B)
2113930F44 51 (NCN/PMCN6176A)
C765 2113932K15 0.1µF
C766 2311049A42 3.3µF
C767 2113932K15 0.1µF
C768 2113931F13 330
C769 2113931F17 470
C770 2311049J23 10µF
C771 2113932K15 0.1µF
C772 2311049A42 3.3µF
C773 2113743A19 0.1µF (NCN6106C, NCN/
PMCN6153A/B)
- - - - - - - - - Not Placed (NCN/PMCN6176A)
C774, 775 2113931F17 470
C776 2113932K15 0.1µF
C777 2311049A07 1µF
C778 2113932K15 0.1µF
C779 - - - - - - - - - Not Placed
C780 thru 786 2113931F17 470
C787 2113930F39 33
C788 thru 790 2113931F17 470
C791 2113931F17 470 (NCN6106C, NCN/
PMCN61563A/B)
2113931F20 620 (NCN/PMCN6176A)
C792 2113931F13 330
C793 2113743A19 0.1µF
C795 2113930F39 33
C797 2113930F51 100
C798 2113931F49 10nF
C804 2113931F41 4700
C808 2113931F17 470
DIODE:
CR701 4813825A05 Schottky
CR702 thru 704 4805218N57 Dual
CR705 4813833C02 Dual
CR706 4805218N57 Dual
JACK:
J701 0905257V04 Connector, 26-pin; to P701 on 
Front Cover Display Flex
J702 0913915A11 Connector, 25-pin
J703 0905257V03Connector, 18-pin; to P703 on 
Controls Flex
J704 0905461X03 Connector, 20-pin; to P704 Strip 
Connector
COIL, RF:
L701 2462587Q40 270 nH (NCN6106C, NCN/
PMCN6153A/B)
0662057C01 0 Ω Resistor (NCN/PMCN6176A)
L702 2462587Q40 270 nH (NCN6106C, NCN/
PMCN6153A/B)
0662057C55 150 Ω Resistor (NCN/PMCN6176A)
L703 2462587Q40 270 nH (NCN6106C, NCN/
PMCN6153A/B)
0662057C55 150 Ω resistor (NCN/PMCN6176A)
L704, 705 2462587Q40 270 nH
L707 - - - - - - - - - Not Placed
L709 2462587Q40 270 nH
TRANSISTOR:
Q701 4805128M40 PNP
Q703 4880048M01 NPN
RESISTOR, Fixed: Ω ± 0.0625W 
unless stated
R700 0662057A65 4.7k
R701 0662057A56 2k
R702 0662057A81 22k
R703 0662057A56 2k
R704 0662057A41 470
R705 0662057R92 47.5k
R706 0662057A56 2k
R707 0662057A41 470
R708, 709 0662057A56 2k
R710 0662057A89 47k
R711 0662057A97 100k
R712 0662057A56 2k
R713 0662057A81 22k
R714 0683962T45 68
R715 0662057A97 100k
R716, 717 0662057A81 22k
R718 0662057A97 100k
R719 0662057B02 150k
R720 thru 722 0662057A89 47k
R723 0662057A49 1k
R724 0662057A89 47k
R725 0662057G07 75k
R726 0662057G08 82.5k
R727 0662057A81 22k
R728, 729 0662057A89 47k
R730, 731 0662057C55 150
R732 0662057A73 10k
R736 0662057A81 22k
R738 0662057A81 22k
R739 0662057A73 10k
R740, 741 0662057A81 22k
R743 0662057A73 10k
R746 0662057A97 100k
R747 0662057B02 150k
R749 0662057A73 10k
R750 0662057A97 100k
R753, 754 - - - - - - - - - Not Placed
R757 0662057A81 22k
R758 0662057A97 100k
R759 0662057A81 22k
R761 0662057A73 10k
R762 0662057B47 0
R775 0662057A56 2k (NCN6106C, NCN/
PMCN6153A/B)
0662057A29 150 (NCN/PMCN6176A)
R776 0662057A75 12k
R802, 803 0662057A56 2k
R805 0660076A41 470
INTEGRATED CIRCUIT MODULE:
U701 5185765B33 Audio Signalling Filter
U702 5105835U49 Audio PA
U703 4805921T09 Dual Transistor
U704 4805921T07 Transistor, NPN
U705 5185765B32 Microcomputer
U708 5105469E65 5V Regulator
U709 5105750U28 Mux
U710 5185765B30 SLIC V
U711 5113806A20 Multiplexer
U712 4805718V01 Transistor Package
U713 5105109Z72 32k X 8 EEPROM
U714 5185748L01 32k X 8 SRAM
U715 5105625U22 1 Meg X 8 FLASH
U716 5105279V65 AND Gate
DIODE, Zener:
VR701, 702 4813830A23 10V
VR703 4813830A18 6.8V
VR706 4813830A15 5.6V
VR709 4813830A15 5.6V
VR712 4813830A33 20V
VR713 4813830A23 10V
VR714 4813830A18 6.8V
VR715 4813830A14 5.1V
VR717 4813830A27 14V
VR720 thru 723 4805117Y01 6.2V
HearClear Components Not Placed on NCN6176A
CAPACITOR, Fixed: pF ± 5%; 50V 
unless stated
C601 2113743A19 0.1µF
C602 thru 604 2113741A33 3300
C605, 606 2113932K15 0.1µF
C607 2113743A23 0.22µF
C608 2113743A19 0.1µF
C609, 610 2311049A04 0.33µF
C611, 612 2311049A42 3.3µF
C613 2113931F17 470
C614 2113931F49 10nF
C615 2113931F17 470
C616 2113932K15 0.1µF
C617 2113741M53 0.022µF
C618 2113743A19 0.1µF
C619 2113931F49 10nF
C620 2113741M53 0.022µF
C621 2311049A07 1µF
RESISTOR, Fixed: Ω ± 0.0625W 
unless stated
R601 0662057G13 100k
R602 0662057A53 1.5k
R603 0662057R60 10k
R604 0662057R30 1k
R605 0662057A97 100k
R606 0662057R92 47.5k
R607 0662057G13 100k
R608 0662057A81 22k
INTEGRATED CIRCUIT MODULE
U601 5105835U50 HearClear
Electrical Parts List, Controllers
NCN6106C, NCN/PMCN6153A/B, NCN/PMCN6176A 
						

							110
NC
ASFIC
NC
470pF
Hear
Clear
C782 C621
1uFC717
.01uF
0.1uF C773 SW_B +
Vaud VaudR776
12K
C610
0.1uF
R706
R707
470C793 2K470pF
0.1uFVAGOUTD8
VCOATNH8
VDDC2
VOXOC6 XTALIN E1XTALOU TE2
C786 SQIN H7
H3
TIMINGCAP
G1
TRKCLKI N
TXIN C7UNATRXOUTH5
UNIVIOB2
UPCLKD1
E7
VAGCAP
REFATNG7RESETJ2
RSSI G8RXAUDOUTJ4
RXI N H6
RXLIMCAPJ3
RXLIMOUTG4
SQDETH1
MDCREFB1
MICAMPOUTA6
MICIN B8PGMENAB F2PLCLK C3
PLIN J7PLLIMA4
PREM PC8
F4
GND7 D5
GND8 E5
GND9 F5LCAPA5
LIMI N E8
LOOPCAPC1
LOWSPCAPC5
GND10 G5
GND11 E6
GND12 F6
GND13 G6GND2 F3
GND3 G3
GND4 D4
GND5 E4
GND6
GCB1A3
GCB2B4
GCB3B3
GCB4A2
GCB5C4GNDA B7GNDD D2
GND1 D3DACOF7 DAT A E3
DCAPB6
DTMFCL K G2
EXPAUDIO J5
EXTMICI N A7EXTVOLI N H4
GCB0B5 J6
AUXRXI N
AUXTXIN D7
BIASRESF8 BUFFDISCD6
CHACTH2
CLK F1
C613
U701
1uF
470pF0.1uFC711
470pFC718
.022uFC617 C785
R700
4.7K C601
0.1uF22K R608
0.1uF C712C618
0.1uFC721
0.1uF
C609 SW_B +
C714
0.1uF
C611
0.1uFC614 3.3uF
C808 .01uF
470pF C779 R762
0C716
C612.01uF Vaud
3.3uF R601
100KR604
1K
3300pF C602
0.1uF C713 C709.01uFC798
0.22uF0.1uFC616 C608
0.1uF C605
0.1uF.01uFC720
470pF C704 NC4 E6 B5
NFILINNFILOUTC6
NOISHL DD5 RSSIIN F5
VAGA4
VCCB3HCIDSABB6 HIENAB C2ICENAB C4
LODSABA5
NC B1
NC1 B4
NC2 E5
NC3 D6EXPBYPC3 EXPIN C1EXPOUTA2
FFCNT LD4 E3
FFENAB
FFIN E4FFOU TF4GN D A3CBUFOU TF2
CFBBYPE2
CLIPREFC5
COMPBYPD2 COMPCAPE1 F3
COMPOUT CPNENAB D1
EXPADJB2
U601
CBUFIN D30.1uF C719
C792
330pF R761
10K47KR710
R602
1.5K
0.22uF C607 10K
C604
3300pFR603
R607 C603
3300pF
C606100K
0.1uF
.022uF R606
47.5K R605
C620C723 100K.01uFC619
0.22uF
R704 R703
2K
470
C743
.015uF VR706
5.6V
470pF C742C715
0.1uF
2.2uF C722
470pF C615C710
4.7uF
R705
47.5K HCI_DIS
HCI_DIS FF_EN
FF_EN COMP_E N
COMP_EN RX_IN
DISCVCO_MOD VCO_MOD
VOX VOXUNIV_IO
2.1_MHzPWR_RST
SCKSCK
ASFIC_SEL
AUX_RX
AUX_RX
SQINRX_DAT A RX_DATA
AUXTXIN
AUXTXIN
INT_MIC EXT_MICPRE-EMP
PRE-EM P LC_DIS
LC_DI S HI_CLMP_EN
HI_CLMP_EN LG_DTMFLG_DTMF PL_TXPL_TX
TX_DATATX_DATA
RX_AUDIO
EXT_SPKR_SEL EXT_SPKR_SELASFIC_MIC_AUD_out ASFIC_MIC_AUD_out
RSSIUPCL K UPCLKCHACT CHACTSQ_DET SQ_DET
PL_RX PL_RXMDC_REF MDC_REF
MOS IMOSI
63B81097C21-O
NCN6106C , NCN/PMCN6153A/B, NCN/PMCN6176A 
CONTROLLER BOARD ANALOG SECTION SCHEMATIC DIAGRAM 
						

							111
OPT_B+/BOOT_SEL
DVP_WE/RTSBOU T
KEY/FAIL
DVP_WE/RTSBIN
SCI_RX/TDX_OUT
DVP_WE/RTSBOUT
32k X 8 SRAM 1MEG X 8 FLASH
EXP_SEL2/OPT_CTB S LH_ BUSY/KID
EXP_SEL2/OPT_CTB SLH_DATA/KEY/FAILUNIV_IO/DVP_WE
UV CS
*
OPT_SEL1
SLICV 
32k X 8 EEPROM
EXP_INT2/OPT_TXDA(0)
A(1)
A(2)
A(3) 1
A(9)
A(0)
A(1) Vdd C781
470pF 470pF C7906 CR703
VDD1
J5
VDD2
E1
VDD3
VDD4B5
VSS1 E9
H5
VSS2
F1
VSS3
VSS4 C5ROM1CSB
ROM2CSBF5 J8
RTSBIN
J1
RTSBOUT
RWBI NB3 RXDI NB2D9
SCNEN SCNSLBG2 F9
G4
PL6
PL7 J3
K6
PM0_BNK2
PM1_BNK3 G5
PM2_BNK4 J6
PM3_BNK5 H6
PO RC9
K5 PK5_XCS1 B
PK6_XCS2 BG6
K7
PK7_XCS3 B
PL0 E7
PL1 J9
PL2 G7
F8
PL3
G9
PL4
PL5 K8PJ5
A7
PJ6
D6
PJ7
PK0_CTSBI NE8
PK1H9
PK2G8
PK3_A 9F6
PK4_A10F7
J7 PH 5 H2
H3
PH 6
PH 7 K2
B4
PJ0
PJ1 D5
PJ2_TXDOUT A5
B6
PJ3_CTSBOUT
PJ4_TXDIN A6
C6
MEMRWB A2
C4
OEB
B9
OVERRIDE
F3
PH 0
F4
PH 1
PH 2 F2
PH 3 H1
G3
PH 4
DECIN B8
J4
EE1CSB
EE2CSBK4
E4
HC11RSTB
IRQBE2
LHRSTI A8 B7
LHRSTOB A4C3
D0
B1
D1
C2
D2
D4
D3
D4C1
D2
D5
D3
D6
D1
D7
D8
A3
E6
A4
E3
AVB
BOOTRXJ2 E5
BOOTSTRPB
G1
CEB
A3
CLK_4XE CLK_E
U710
D7
A0
C7
A1
A14I NH8
A14OUTH4
H7
A15I N
A15OUTK3 C8
A2
Vdd Vdd Vdd
A(4)
A(5)
A(6)
A(7)
A(8)
A(9) 6
A(10)A(3)
A(11)
A(12) VddVdd
22K R741
A(3) 0
A(19) A(13)A(8)
A(9)
A(10)
A(11)6 470pF Vpp
R723 1K
A(13) C769 2
Y0
1
Y1
4
Z 5
Z0
Z1 3Vdd
6
EN
8
GND16VCC7VEE
14
X 12
X0
X1 13
15
Y
U711
A11
10
B
9
C
22K R759 VR713
10V3Vdd
Vdd
7 Vdd
VR717
14V0
1
4
C804 R758
4700pF 100K
A(16) VR712
20V22K R716
2
2K R712
0.1uF22K R757
C778 0.1uF C776
A(11)
A(12)
A(13)
A(14)
A(0)
A(1) 3
6
MECH_SWB+Vdd4
A(7)
A(8)
A(9)
A(10) C772
3.3uF
2K R701 R702
22K
A(15)
A(2) A(16)
A(4) L709 270nH
5 4 3 2
1 0A14_OUTA(0)
A(3)
U712TC7S08F 1
24
7 5
A(2) A(1)
U703
0.1uF C762A(10)
A(11)
A(12)
C775
470pF25
D6
D7 2627
EN_CE
1
EN_OE
6
EN_WE
21GND
7 VCC
4
A8
A93 D0 18
19
D1
20
D2
22
D3
23
D4
D5 24
5
A13
A148 A215
A314
13
A4
12
A5
11
A6
10
A717
A0
16
A1
28
A10
2
A11
9
A12
29
GND30GND
39
NC
40
NC
10 VCC31 VCC11 VPP
U713
33
D5
34
D6
35
D7EN_CE9
37
EN_OEEN_RP12
36
EN_RY_BY
38
EN_WE
16
A8
15
A924
AO D0 25
26
D1
27
D2
28
D3
32
D4
2
A18
1
A1922
A2
A321
20
A4
A519
18
A6
17
A7
14
A10
13
A11
8
A12
A137
6
A14
5
A15
4
A16
3
A17 Vdd
U715
23
A1A(4)
CR70216
IO4
IO5 17
18
IO6
19
IO7
28 VCC
5
A(14)
20
EN_CS
22
EN_OE
27
EN_WE
14GND
11
IO0
12
IO1
13
IO2
15
IO38
A2
7
A3
6
A4
5
A5
4
A6
3
A7
25
A8
24
A910
A0
9
A1
21
A10
23
A11
2
A12
26
A13
1
A14 A15_OUT
A(2)7
U714
A(15)A(12)
A(14)A(8)
2
0.1uF C765
C76610K R732 100K
3.3uF VddA(17) A(18) A(19) R711
100K R718
A(7)
C744
.01uF4 3 2 1
A14_OUT
A15_OUTA(5)
A(6)
470pF3
4
5
C748
XIRQE8 XTALA7
R746
100K
F8
PG6_CSGEN
PG7_CSPRO G E6
RESET E5B6
R_W*
VDDJ5
VRHA4
VRLD4
VSSB4
PE6_AN6 B3
PE7_AN7 C4
PG0 H7
PG1 F6
PG2 H8
PG3 F7
PG4_CSIO2 G7
PG5_CSIO1 G8
PD4_SCK G5
PD5_SS* H5PE0_AN0 B1
B2
PE1_AN1
PE2_AN2 C3
PE3_AN3 A3
PE4_AN4 D3
PE5_AN5 A2
PA4_OC4_OC1G4
H4
PA5_OC3_OC1
PA6_OC2_OC1J4
F5
PA7_PA1_OC1
PD0_RXD J7
PD1_TXD G6
PD2_MISO H6
PD3_MOS I J6
EXTALA6
IRQE7
MODA_LIR* C5
MODB_VSTBY B5
PA0_IC3G3
J2
PA1_IC2
PA2_IC1H3
PA3_OC5_IC4_OC1J3
D0_PC0C6
D1_PC1B8
D2_PC2C7
D3_PC3D5
D4_PC4C8
D7
D5_PC5
D6_PC6D6
D7_PC7D8
D1
E3
A4_PF4
A5_PF5E2
A6_PF6E1
A7_PF7E4
A8_PB0F1
A9_PB1F3 B7
CLK_4XE CLK_E A5
F2
G1
A11_PB3
A12_PB4F4
A13_PB5G2
A14_PB6H1
A15_PB7H2 A1_PF1C2
C1
A2_PF2
A3_PF3
U705
MC68HC11F1
A0_PF0D2
A10_PB2R754
R739
10K
75KR725
24pF C724 C763
24pF C764
24pF
82.5K R726100K R7501A(5)
A(6)
A(7)
R802
2K
4CNTL 12VDD
5VSS3
0 0
5
6
7
TC4S66FU709
100pF C797Vdd
A(5)
A(6)
CR705 Vdd
A(0)
A(1)
A(2)
A(3)
A(4)
7 R717
22K
A(17)
A(18) R749
10K 22K R740
C777 Vpp
VddA(13)
1uF R743
10K
R736
22K2
22K R727 VddA(14)
0.1uF C771A(4)
R720
47K 150K R719PWR_RST
VOXVOX
SCI_TX
SCI_TX
MISOMISO
MOSIMOSI
SCK
SCK
SYN_SEL RED_LED
RED_LED
CONC_SENCONC_SEN ZIF_SELZIF_SEL Vpp MODECNT L
OPT_SEL2
OPT_SEL2
OPT_SEL1
LOCK_DETLOCK_DET
DATA_LATCH
DATA_LATCHPL_RXPL_RX
RTA1RTA1
RTA3RTA3
RSSI
RSSI PWR_RSTPWR_RSTBUSY BUSY KID
KID
BUTT2 BUTT3
SW3POSSW3POS BUTT1BUTT1 VOL_SENSE
VOL_SENSE UNIV_IO
DA_SELDA_SEL
ASCFIC_SEL
ASCFIC_SELROSC_SEL
ROSC_SELSYN_SELSCI_RXSCI_R X
RWBI N
RWBIN UPCLK
UPCLK UPCLK
DATACNTL
CTSBOUT
CSI01
CSPROG
B+_CNT L
EXP_SEL1
GRN_LE D LCD_SEL
MUX_CNTL
SQ_DETCHACT
INT_PTT
BL_CNTL EMERGENCYRTA0
RTA2
EXP_INT1
CSGENRXDATA
RXDATA
MDC_REF
CSI01 KEY_INT
A(16)
A(17)
A(18)
A(19)
BOOTSTRPBOOTSTRP UV_CS2 UV_CS1
MEMRWB
OVERRIDEEE_CS
EE
AUPA_EN
LG_DTMF
PL_TX TX_DATA
LBAT
63B81097C22-O
VR715
5.1V
NCN6106C, NCN/PMCN6153A/B AND NCN/PMCN6176A 
CONTROLLER BOARD DIGITAL SECTION SCHEMATIC DIAGRAM 
						

							112
Power SectionAnalog SectionDigital Section
GND1
FLEX GND1
GN D DVP_WE/RTSBOUT
EXP_INT2/OPT_TX D
EXP_SEL2/OPT_CTB S SCI_RX/TDX_OU T LH_BUSY/KIDASFIC MIC AUD out
NC SPI TX DATA (MOSI)
SPI RX DATA (MISO) KEY INSERT DATA (KID)
LH_DATA/KEY/FAIL GND1
RESET
GND2
OPT_B+/BOOT_SEL
AUX_TX/DVP_WE/RTS
LH_BUSY/KID/DATA_IN
Vpp/CTS
SCI_RX/OPT_TXDATA
RF
BOARD
J301
SCK 2.1 MH z
GND0 GND2 UNIV_IO/DVP_WEOPT_B+/BOOT_SEL
TO UNSW B+1
MOS I
GND3
UNSW B+2 **
EXPANSION BOARD CONNECTOR
TAMPER SWITCH
KEY/FAIL2.1 MH z
ASFIC PRE-EMP out
SQ OU T
U704P704 P301
JUMPER           
C759
470pF R713
22K
R775 2K
23
C774
470pF 21
22470pF
C702
470pF C700
VR720
6.2V C745
33pFVR709
5.6V
1 2
C799
33pF 18
6.2V VR721
31 2270nH
VR703
6.8VR708 2KL701 470pF C708
31 2
3 17
   6.2V VR723
C788
470pF11
C784
470pF19 10
12
18 6
16 15
17 13
14 19
9 14 13470pF C701
16 15
C750
470pF47KR722R721
47K
6.2V VddVdd
470pF C757
VR722 33pFC741
470pF C739
0.1uFC758470pF C740
470pF C738C737
470pF
R724470pF C736
47K 470pF
C760
470pF C706
C761
470pF 26R803
2K
24
2516 14
15 13
C787
C754
470pF33pF
470pFC753
C752
470pF 470pF C751
C749
470pF C755
470pF C747
C756
470pF
470pF470pF
C746 11
129
107
8 5 3
4
2K 2
R709
2
3
8 7
C7804
5
470pF2
3
7 1
6
8
22
UNSW_B +
R729
47K12
MECH_SWB+R728
47K10
11
C7899
470pF J701
1
C791 470pF
470 R805 L705
20 UNSW_B + SW_B+ L703 270nH
5
6 1
4 SW_B+
470pF C783 VddVdd
L707
25 SW_B+ UNSW_B +Vdd
23
24
J70220
21 18
19
2017
SW3POS
SYN_SEL TX_DATA
UNIV_IO UPCLK
VOL_SENSEVO X
Vpp
ZIF_SEL OPT_SEL1
OPT_SEL 2PL_R XPL_TX
PWR_RST
RED_LEDROSC_SEL
RSSI
RTA0 RTA1
RTA2 RTA3 RXDAT A
SCK SQ_DET
GRN_LED INT_PTT KEY_INT
KEY|FAIL
KID LCD_SELLG_DTM F
LH_DATA|KEY|FAIL
LOCK_DETMDC_REF
MISO
MODECNT L
MOS I OPT_B+|BOOT_SELASCFIC_SEL
AUPA_EN
B+_CNT L BL_CNTL
BUTT1 BUTT2 BUTT3CHACT
CONC_SEN DATA_LATCH
DA_SEL
EMERGENCYEXP_INT1
EXP_SEL1 MOS I
PL_R
X
PL_TX PRE-EMP
PWR_RST
RSSI RX_AUDI O
RX_DATASCK
SQIN
SQ_DET
TX_DATAUNIV_IO
UPCLKVCO_MOD
VO X2.1_MHz ASFIC_MIC_AUD_out
ASFIC_SELAUXTXI NAUX_RX
CHACTDISC
EXT_MIC EXT_SPKR_SEL
INT_MIC
LG_DTMF
MDC_REF
5 1
6 270nH L702
150 R730
150R7312 4
3 SPKRCOM
EXTMIC
VOL_SENSE LCD_SELAUPA_ENB+CNT L
EXT_SPKR
EXT_SPKR_SEL INT_SPKRPWR_RST
RX_AUDI O SPKRCO M
SW_B+SW_B +ground
INT_SPKR
KEY_INT
OPT_SEL1
EXT_SPKR
SPICLK
MOSI
OPT_SEL2
MISO
MODE_CNTL INT_MI CDISC
PWR_RST
EXP_INT2DVP_WEAUX_RX UNSW_B +
Vdd
SW_B+
SPI_CLK
EXP_SEL 2AUX_TX
LOCK_DET
SYN_SELDA_SEL ROSC_SEL
ZIF_SELRSSI
RSSI
EMERGENCYRED_LED_DRV
RED_LED_DRV
GRN_LED_DRV GRN_LED_DRV BUTT2
BUTT1 BL_CNTL SW_B+
DATA_LATCH Vdd
DISC VCO_MOD EXP_INT1
EXP_SEL1
RTA1
RTA2 RTA3UNIV_IO
Vd d
UNSW_B +
MECH_SWB+ BUTT3
RTA0 INT_PTT
CONC_SEN SW3POS
63B81097C23-O
NCN6106C AND NCN/PMCN6153A/B AND NCN/PMCN6176A 
CONTROLLER BOARD TOP-LEVEL SCHEMATIC  
						

							113
*
NC
Vaud Regulator
NC
AUDIO PA
Vdd Regulator
*
Main Power Switch
10V VR701
C729 C725
1uF
F5
REGE6
REGOUT
B5
VCC1
C5
VCC2
1uF
NC3 C4
C3
NC4
D4
NC5
D3
NC6
E4
NC7
E3
NC8
D5
PLIND6
PLOUT
A2
GND1
A4
GND2
E5
GND3
E1
INT_MIC_IN
B2
INT_SPKRF2
MICAMPOUT
B4
NC1
B3
NC2
B1
BOOTCAPC2
BOOTCAPC3C2 D1
EN_AMP
E2
EN_INT_MI C
F3
EN_MIC
EXT_INT_SPKR C1 D2
EXT_MIC_IN F4
FREQCOMP
U702
A3
AMP2OUT
A5
AMP3OUT
C6
AMPI N
B6
BOOTCAPC1 SW_B+ MECH_SWB+
UNSW_B+R753
CR704150K R747
Q703
147K3
47K
25 6 7 8
4
1
2 3Vdd
U712
22K R738
270nH
C770
10uF L704
0.1uFC767
330pF C768
C707
470pF C73568 R714
470pFCR701
0.33uF C7280.1uF C771
Vaud SW_B+
SW_B+
C730
4700pF0.1uFC731
10uF C732 C733 C734
10uF Q701
0.1uF
10V C727VR702
1uF
C705 0.33uF C726C703
470pF 470pF CR706 4
GND
INPUT 8
OUTPUT1
SENSE2
SHUTDOWN 3
VR714
6.8V
RX_AUDIOU708
5V_TAP6 ERRO R5
FEEDBACK 7
B+CNTLPWR_RST
EXT_SPKR_SELAUPA_EN OPT_B+|BOOT_SEL
SPKRCOM
INT_SPKR EXT_SPKR
63B81097C24-O
NCN6106C, NCN/PMCN6153A/B AND NCN/PMCN6176A
CONTROLLER BOARD POWER SECTION SCHEMATIC DIAGRAM 
						

							114
MODE
13 5 6 4 3
1
2LCD SEL
MOS1
TO J703 ON CONTROLLER BOARD
*
EXT PTT1
01
1
10
00
S403 678 9
*
MAN DOWN
J403VOL SW MODE
LED RED LED GREEN
CR400B CR400AP703
CONTROLS FLEX
NC
TO J701 ON CONTROLLER BOARD
AUX_TX/DVP_WE/RTS
LH_BUSY/KID/DATA_IN
VPP/CTS
P403 Pin 8 Connected to P701 pin 2 
instead of P701 pin 8 On Front Display Models
GND2
BL CNTLTO DTMF KEYPAD
P701 J501
TO LCD
P502
ONLY ON 
TOP DISPLAY C MODELS11 45
SPI CLOCK
Vdd
OPT_SEL1 OPT_SEL 2
NORMAL
EXT SPK
P403 SCI_RX/OPT_TXDATA
LH_DATA/KEY/FAIL
FRONT COVER DISPLAY FLEX
OPT_B+/BOOT_SEL
UNIVERSAL 
CONNECTOR MK401
LS401
INT PTT MON SIDE BUTTON 2 SIDE BUTTON 1
EMER 123 10
123 4567 8910111218 12
20 17 16 14
15 9
13 3 1
7 2
6
814
25
26 24 23 22 11
21 19 10 C401
56pF4
5
S402
2 1
3
5 IN 3NEG
OUT
4POS
1
VAR
2 S408
S407 S406 S404
S11
S24
S4 3S8 6 S405SWITCHS401
A7 8
BC2
C1 516
17
18 15 3
13 11 2
12 10 8 4
7
9 5
6 GND
MECH_SWB+BUTT3
BUTT2
RTA1
RTA0 RTA2
RED_LED_DRV
GRN_LED_DRVRTA3
EMERGENCY1
INT_SPKR
RESET
SPKR_COM
GND2 INT_MICGND1
BL_CNTLSW_B+
KEY_INT
DATA_LATCH
EXT_MIC
SPI_CLK
MOSI EXT_SPKR
MISO OPT_SEL2
LCD_SEL OPT_SEL1
VDD
MODE_CNTLINT_PTT
BUTT1
VDD
SW3POS
VOL_SENSEUNSW_B+
INTERNAL
SPEAKER INTERNAL
MICROPHONE
63B81097C27-O
FRONT COVER DISPLAY FLEX AND CONTROLS FLEX SCHEMATIC DIAGRAMS 
						

							115
Replacement Parts Ordering
10
IntroductionWhen ordering replacement parts or equipment information, the 
complete identification number should be included. This applies to all 
components, kits, and chassis. If the component part number is not 
known, the order should include the number of the chassis or kit of 
which it is a part, and sufficient description of the desired component 
to identify  it.
Crystal and channel element orders should specify the crystal or 
channel element type number, crystal and carrier frequency, and the 
model number in which the part is used.
Motorola OnlineMotorola Online users can access our online catalog at
https://www.motorola.com/businessonline
To register for online access: Domestic customers: please call 800-814-0601 (U.S. and 
Canada).
 International customer s: please go to 
h
ttps://www.motorola.com/businessonline 
and click on “Sign Up Now.”
Mail OrdersSend written orders to  the following addresses:
Replacement Parts/
Test Equipment/Manuals/
Crystal Service Items:
Motorola Inc.
Radio Products Services Division*
Attention: Order Processing
2200 Galvin Drive
Elgin, IL 60123
U.S.A. Federal Government Orders:
Motorola Inc.
U.S. Federal Government 
Markets Division
Attention: Order Processing
7230 Parkway Drive
Landover, MD 21076
U.S.A.International Orders:
Motorola Inc.
Radio Products Services Division*
Attention: Order Processing
2200 Galvin Drive
Elgin, IL 60123
U.S.A. 
						

							116
Telephone OrdersCall telephone orders to the following numbers:
Radio Products Services Division*
(United States and Canada)
7:00 AM to 7:00 PM (Central Standard Time)
Monday through Friday (Chicago, U.S.A.)
1-800-422-4210
1-847-538-8023 (International Orders)
U.S. Federal Government Markets Division (USFGMD)
1-800-826-1913 Federal Government Parts - Credit Cards Only
8:30 AM to 5:00 PM (Eastern Standard Time)
FAX OrdersFAX orders to the following numbers:
Radio Products Services Division*
(United States and Canada)
1-800-622-6210
1-847-576-3023 (International)
USFGMD
(Federal Government Orders)
1-800-526-8641 (For Parts and Equipment Purchase Orders)
Parts IdentificationRadio Products Services Division*
(United States and Canada)
1-800-422-4210, menu 3
Product Customer 
ServiceCustomer Response Center
(Non-technical Issues)
1-800-247-2346
FAX:1-800-247-2347
*The Radio Products Services Division (RPSD) was formerly known as 
the Customer Care and Services Division (CCSD) and/or the 
Accessories and Aftermarket Division (AAD). 
						

							 Appendix A- 1
Appendix A
11
Secure Modules: 
NTN7279A, 
NTN7280A, 
NTN7281A, 
NTN7282A, and 
NTN7283A for 
MTS 2000 RadiosNOTE:The Secure Module is NOT serviceable. The 
information contained in this appendix is only 
meant to help determine whether a problem is 
due to the Secure Module or the radio itself.
IntroductionThe Secure Module is designed to digitally encrypt and decrypt voice 
data in Motorola’s MTS 2000 Series Handie-Talkie™ Portable Radios. 
The Secure Module uses a custom encryption integrated circuit (IC) 
and an encryption key variable to perform its encode/decode function. 
The encryption key variable is loaded into the Secure Module via the 
radio’s universal (side) connector from a hand held key variable loader. 
The encryption IC corresponds to the particular encryption algorithm 
purchased. The encryption algorithms and their corresponding kit 
numbers are:
Data Encryption Standard (DES)NTN7279A
DES-XLNTN7280A
Digital Voice Protection (DVP)NTN7281A
DVP-XLNTN7282A
DVI-XLNTN7283A
Circuit DescriptionThe Secure Module, shown in Appendix Figure 1, operates from two 
power supplies. The first 5 volt supply (Vdd) is received from the 
controller board through connector plug P1 pin 2. This Vdd supply is 
turned on and off with the radio on/off switch. The second supply 
(UNSW B+) is received from the controller board through connector 
Plug P1 pin 1. UNSW B+ provides power to the Secure Module as long 
as the radio battery is in place.
Key variables are loaded into the Secure Module through connector P1 
pins 13, 15, and 16. One key variable can be stored in the module at a 
time. The key variable is stored in volatile electronic memory, so it can 
only remain in memory as long as the radio is connected to a charged 
battery. If the battery is removed or if the battery fails, then a capacitor 
will allow the module to retain the key variable for at least 30 seconds 
while the battery is being replaced.
The radio’s host processor communicates with the Secure Module on 
the Serial Peripheral Interface (SPI) bus. The host processor is the 
master on this bus, while the Secure Module is a slave on the bus. The  
						

							Appendix A- 2SPI bus consists of five signal lines. Refer to Appendix Table 1 for the 
signal information. A communications failure between the host 
processor and the Secure Module will be indicated as an “ERROR 09/
10” message on the radio display.
Appendix A Table 1.   MTS 2000 Single Key Secure Module I/O Definition
SIGNAL NAMECONNECTOR PLUG
P1 PIN NUMBERFUNCTION
UNSW B+ 1 Unswitched battery voltage
Vdd 2 Switched 5 volt supply
2.1MHz REF CLK 3 2.1/2.4 MHz clock signal
GROUND 4 Ground
ASFIC PRE-EMP out 7 Transmit Clear Audio
AUX RX 9 Receive Clear Audio
DISCRIMINATOR 10 Receive Encrypted Audio
GROUND 11 Ground
RESET 12 Radio Reset - Does NOT reset module
KEY/FAIL 13 Keyloading Signal
TX AUDIO 14 Transmit Encrypted Audio
KEY INSERT DATA 15 Keyloading Signal
DVP WE 16 Keyloading Signal
SPI CLK 17 SPI Data Clock
SPI TX DATA (MOSI) 18 SPI Data from Host
SPI RX DATA (MISO) 19 SPI Data to Host
EXP INT1 20 SPI Secure Interrupt Request
EXP SEL1 21 SPI Secure Slave Select
CONT 5V 24 Continuous 5 Volt Regulator Output (Not Used)
5,6,8,22,23,25 Not Used
2 1
18 17
21
3
7
4 1019
20
24 14
9
16
15
13
12
11 SPI CLKUNSW B+ Vdd
SPI TX DATA (MOSI)
EXP SEL 1
2.1MHz REF CLK
ASFIC PRE-EMP out
DISCRIMINATORSPI RX DATA (MISO)
EXP INT 1
TX AUDIO
AUX RX
CONT 5V DVP WE
KEY INSERT DATA
KEY/FAIL
RESET
Interface and Control
Encode / Decode
Key Variable StorageSerial Peripheral Interface (SPI)
MAEPF-26127-O
Not Connected: 5,6,8,22,23,25
Appendix Figure 1.   Secure Module