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MOTOROLA HT-1000 Service Manual: Ncn6129c, Ncn6138a, Ncn6140a/b, Ncn/pmcn6140c, Ncn6141a, Ncn6145a/c, Ncn6146a, Ntn7089c Controller Board Digital Section Schematic Diagram

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5V
0V
7.9488 MHz
5Vp-p
UP_CLK
5.0Vdc
RX_DATA
PL_RX
MDC_REF
LH_BUSY
TX_DATA
PL_TX
LG_DTMF
LOCK_DET
J701_20
J701_19
J701_17
ASFIC_SEL
SYN_SEL
REF_SEL
ZIF_SEL
DAC_SEL
GRN_LED
RED_LED
J701_3
FF_EN
CHACT
SQ_DET
0V SQ
5V UNSQ
J701_26
C786
C737
5V_REG
100pF
100pF
U702
8
VD D
7
*HOLD
3
*C726*
*WP
4
VSS
CLK
DATA
J701_14
J701_25
VR718
VR702
6.2V
2
1
2
1
6.2V
*
C753
*
*
C754
*
3
3
C728
5V_REG
5V_REG
.01uF
R753
R716
10K
TP3
R754
0
1
*CS
2
SO
5
S1
6
SCK
R714
10K
R723
R725
0
0
R724
0
R764
150
VR721
6.2V
1
2
C797
*
C752
*
100pF
3
R706
R707
R705
Q701
5V_REG
C729
R735
3.3uF
10K
5V_REG
C727
0.1uF
R731
R715
R738
R717
4.7K
10K
22K
4.7K
TP2
XTAL
EXTAL
CLK_E
MODB
MODA
PA0
RESETB
PA1
XIRQ
PA2
IRQ
PA3
PA4
PE0
U705
PA5
PE1
PA6
PE2
MICRO-P
PA7
PE3
PE4
68HC711P2
PB0
PE5
PB1
PE6
PB2
PE7
PB3
PB4
PF0
PB5
PF1
PB6
PF2
PB7
PF3
PF4
PC0
PF5
PC1
PF6
PC2
PF7
PC3
PC4
PG0
PC5
PG1
PC6
PG2
PC7
PG3
PG4
PD0
PG5
PD1
PG6
PD2
PG7
PD3
R722
PD4
PH0
0
PD5
PH1
PH2
XFC
PH3
VDDSYN
PH4
PH5
PH6
PH7
VR722
1
2
6.2V
*
C747
*
*
C750
*
3
C730
0.1uF
4
5
1
SB+
2
U708
Q703
3
6
B+
NCN6129C, NCN6138A, NCN6140A/B, NCN/PMCN6140C, NCN6141A, NCN6145A/C, NCN6146A, NTN7089C
CONTROLLER BOARD DIGITAL SECTION SCHEMATIC DIAGRAM
SB+
5V_REG
5V_REG
R708
R700
R721
75K
2.2K
0
100K
TP4
TP1
R730
*
C749
*
100K
VR714
VR723
5.6V
5.6V
R709
2
*
C751
*
*
C748
*
82.5K
3
63B81097C10-O
RESET
U709_5
VOX
VOL_SENSE
SW3POS
RSSI
RAT
EMERGENCY
INT_PTT
SCAN_PROG
MON
J701_24
RTA0
RTA1
RTA2
RTA3
CONC_SEN
J701_10
J701_18
J701_15
J701_13
J701_11
J701_9
J701_5
J701_7
VR719
6.2V
1
93

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This manual also for:

Jt-1000, Mt-2000, Mts-2000

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