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

89
B+
CLK
D
SYN
MHz CLK
Tx_RF5VREG
5VREG D
AGC5VREG
LO
2.1MHz 2.1MHz
B+B+ LCK
3.65VDAC SEL 2.5Vdc
0V 5VGND
GND
GND
GND
4.7 V
4.7 V
2.5V16.8 MHz
2.8V TX
3-11V
FLEX P301
DAC_SEL
CLOCK
1.65VJ301
U205
BUFFER
OTHERWISE LOCK
VCO REF OSC5V REG
SYNTHESIZER
LCK CLK D
NCLCK
4.6V TX4.7 V4.6V
4.6V
4.7 V
NC
13V
2.5Vdc
NC
NC
5V0V RX
NC
0V 5V
*
16.8 
VCO
VCO MOD
2.28V
1.65VSYN
2.1 MHz
IF SEL 2.5 V dc
2.8 V 2.4V
1.55V2.5V
2.4V
3.0V
2.4V
0V OR 5V UNLOCKLOCK DET
NC NC
NC NC
NC
NCNC
VCO MOD
REF OSC SYN SEL
VCO MODSW B+ GND...

90
CHECK
ONE
O.K. AS IS
O.K. AS MARKED(     )
(     )
ISS.
REVISIONRLSE.CORRECTED
AS
MARKED
ILLUSTRATORDATE ENGINEER DATE
PROGRAM DISK
MEDIA & COMMUNICATIONS DEPT.
RLSE.
DWG. NO.
LETTERING SIZE:
REQUIRES:
EDITOR DATECHECKER DATE
Illustrator
Jedi HT/JT  Trans. Cont.
8405261Z04.D
JPMAEPF-26100
O JWB5/28/97
MAEPF-26100-OMAEPF-26099-O
NCN6145A/C, NCN6146A, NTN7089C, NCN6129C, NCN6138A, NCN6140A/B, NCN6141A, NCN/PMCN6140C 
CONTROLLER BOARDS’ PARTS LIST AND COMPONENT LOCATION DIAGRAMS 

91
Notes:
1. For optimum performance, order replacement diodes, transistors, 
and circuit modules by Motorola part number only.
2. When ordering crystals, specify carrier frequency, crystal 
frequency, crystal frequency, crystal type number, and Motorola 
part number.
3. “Not Placed” means that components are for future use, and are 
not placed on the circuit board at this time.
REFERENCE
SYMBOLMOTOROLA
PART  NO .DESCRIPTION
CAPACITOR, FIXED: pF ±5%; 50V 
unless stated
C608, 609, 611 - - - - - - - - -...

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 ONLY3.7Vdc
200Hz RX MDC ONLY
*
Hear
Clear
*** *
*
* * **** * * *
C611
4.9Vdc0 Vdc
4.9Vdc RATED 2.5Vdc
282mVpk-pk/kHz2.5Vdc
C801
33pF
C800 C682
33pF 0.1uF C714
C713
0.1uF
VDD
C6
VOXO E1
XTALINE2
XTALOUT
C779
0.1uFG1
C7
TXINH5
UNATRXOUT
B2
UNIVIO
D1
UPCLK
VAGCAPE7
D8
VAGOUT
H8
VCOATN
C2
RSSIJ4
RXAUDOUT
H6
RXIN
J3
RXLIMCAP
G4
RXLIMOUT
H1
SQDET
H7
SQIN
TIMINGCAPH3...

93
U702
MICRO-PU705
68HC711P2
**
** ** **TP4 5V
7.9488 MHz
5V UNSQTP1
TP3
U708
TP2 0V
5Vp-p
0V SQ
**100K
**5.0Vdc
****
1VR719
6.2V
3 21
6.2V VR718
3 2
Q7015V_REG
R714
10K
C752R717
4.7K
5.6V VR723
20.1uF C730SB+
R721
0 5V_REG
0
5.6V VR714 10K
R722 R715
100pF C737
Q703R730
100K
R725 *HOLD
*WP S1
SCKSO VD D
VSS
0 R753
*CS
R707 5V_REG
R709
B+R708
82.5K 75K C728
.01uF 3.3uFC729
100pF C797150 R764VR722
6.2V
3 12
VR721
32 16.2VC747
6 3C748
1 C750
4 5V_REG
C749 5V_REG
R724
0R700
2.2K
C753
VDD_A_D
VRH VRL VSS...

94
Power SectionDigital SectionAnalog Section
BOARD TX_DATA RTS
LH_BUSY
CTS
RF GRN LED
SCK 2.1 MHz
GND GND RAW_B+
DATA
GND
UNSW B+2 GND
EXPANSION BOARD CONNECTOR
INT_PTT
PAENABLELH_BUSY
TX_OUT
SQ OUT
P704 P301
JUMPER  GND
FLEX GND1
GND OPT_B+
J301 GNDTX_IN
SB2 TONE OUTOPT_SEL1
8 NC NC3
DTMF Keypad
DTMF Keypad
DTMF Keypad
DTMF Keypad
DTMF Keypad
DTMF Keypad
DTMF Keypad DTMF Keypad
U704
TO
C740
100pF4
5 2
3 1
C792
100pF 100pF C799
100pF 100pF C798
C742 C796
100pF 16
17 12
R765
10K R737 150
100pF C704
C755...

95
3.8Vdc UNSQ
RATED 5.5Vpk-pk
AUDIO OUTPUT MAX: 6.5Vpk-pkEXT SPK
3.8Vdc UNSQ
1800mVrms, RATED AUDIO OUTPUT
5V Regulator
AUDIO PA
Vcc Regulator
1.1Vdc
900mVpk-pk : MAX AUDIO SETTING
250mVpk-pk : RATED AUDIO SETTING6.8Vdc5.0Vdc
0Vdc EXT SPK SEL
5Vdc INT SPK SEL5Vdc UNSQ
0Vdc SQ
RATED 5.5Vpk-pk
AUDIO OUTPUT MAX: 6.5Vpk-pk100pF C767 0.1uF C723 5V_TAP6 ERROR5
FEEDBACK 7
4
GND
INPUT 8
OUTPUT1
SENSE2
SHUTDOWN 3U709
C768L705
390nH SB+
100pF 0.1uFC725
0.1uF C7245V_REG
SB+C722
10uF
1uF C773
31
NC7
32
NC8
10...

96
CHECK
ONE
O.K. AS IS
O.K. AS MARKED(     )
(     )
ISS.
REVISIONRLSE.CORRECTED
AS
MARKED
ILLUSTRATORDATE ENGINEER DATE
PROGRAM DISK
MEDIA & COMMUNICATIONS DEPT.
RLSE.
DWG. NO.
LETTERING SIZE:
REQUIRES:
EDITORDATE CHECKER DATE
Illustrator
Jedi Dual Flash Cont.
8405940W06.E
JP
JWB5/28/97MAEPF-26098
O
MAEPF-26098-OMAEPF-26097-O
NCN6147A/B, NCN6150A/B, NTN7091D, NTN7620E, PMCN6147B AND PMCN6150B 
CONTROLLER BOARD’ PARTS LIST AND COMPONENT LOCATION DIAGRAM 

97
REFERENCE
SYMBOLMOTOROLA
PART  NO .DESCRIPTION
CAPACITOR, Fixed: pF ± 5%; 50V 
unless stated
C700 thru C708 2113931F17 470pF
C709 2113743A23 0.22µF
C710 2311049J11 4.7µF
C711 2311049A07 1µF
C712, C713 2113743A19 0.1µF
C714, C715 2113932K15 0.1µF
C716, C717 2113931F49 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 2113930F44 51
C725 2311049A07 1µF
C726 2113743F12 0.33µF
C727 2311049A07 1µF
C728 2113743F12...

98
* *
ASFIC
NC
*
* C720
.01uF.01uF C717
C713 R707
0.1uF R706
470C793
0.1uF 2K 4.7uF C796
0 R771
62pF C810
470pF C786 D1
UPCLK
VAGCAPE7
D8
VAGOUT
H8
VCOATN
C2
VDD
C6
VOXO E1
XTALINE2
XTALOUT
G4
RXLIMOUT
H1
SQDET
H7
SQIN
TIMINGCAPH3
TRKCLKIN G1
C7
TXINH5
UNATRXOUT
B2
UNIVIO
A4
PLLIM
C8
PREMPG7
REFATN
J2
RESET
G8
RSSIJ4
RXAUDOUT
H6
RXIN
J3
RXLIMCAPC1
LOOPCAP
C5
LOWSPCAP
B1
MDCREF
A6
MICAMPOUT
B8
MICIN F2
PGMENAB C3
PLCLK
J7
PLIN
D4
GND4
E4
GND5
F4
GND6
D5
GND7
E5
GND8
F5
GND9A5
LCAP
E8
LIMIN
D2
GNDD
D3...