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

69
16.8 MHz REF OSCU203
U201
VCO BUFFER
SYNTHESIZERU204
ZIF U3
LOCK_DET
RSSI  9.2(TX)Vdc @ 520MHz  7.7(RX)Vdc @ 520MHz  7.4(TX)Vdc @ 512MHzUNLOCK=0V
-9dBm 
5V REG
4.9(RX)Vdc @ 450MHz
5V NC
NC NCGND
*
3Vdc (TX)
0Vdc (RX)NC
-12dBm(TX)NC
1.7Vdc (RX) 1.6Vdc (TX)
 6.1(RX)Vdc @ 512MHzPROGRAMING NC NC
4.6Vdc (NOTE 5)
(shield in place)
using 10 pF
GND GND 1.6VdcPINS 31-38 = 2.5Vdc
2.0Vdc
-36dBm (RX)
(NOTE 5)
1.4Vdc
-44dBm  (NOTE 5)2.5Vdc 2.0Vdc typical
2.8Vdc
-53dBm (NOTE 5)
3.4Vdc
2.9Vdc (RX) (NOTE 3)...

70NUE7267B, NUE7268B, NUE/PMUE7273B, AND NUE7275B UHF (450-520MHz)
TRANSCEIVER BOARDS’ PARTS LIST AND COMPONENT LOCATION DIAGRAMS
O.K. AS IS
O.K. AS MARKE
ISS.
REVISIONRLSE.CORRECTED
AS
MARKED
ILLUSTRATORDATE ENGINEER DATE
PROGRAM DISK
MEDIA & COMMUNICATIONS DEPT.
DWG. NO.
LETTERING SIZE:
REQUIRES:
EDITOR DATECHECKER DATE
Illustrator
Jedi UHF RF 
8404221J44.S
JP 12/18/97
O JWB
MAEPF-26303-O
MAEPF-2630
3
C157
MAEPF-26302-O 

71
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 ± 25%; 
50V unless stated
C1 2113930F18 4.3
C2 2113930F22...

72
U101TX ALC IC
U1 RF AMPLIFIER
U102
D/A IC
P.A.
U105
85Y11
COUPLERU104
0Vdc (RX)6.5Vdc (TX)
0Vdc (RX) 2.8Vdc (TX)
*
*
* **
*
*
*
**
*
*
**
    OF THE RF MILLIVOLTMETER & A RF LEVEL OF -20 DBM INTO J401. 2. RX RF VOLTAGES IN DBM ARE MEASURED WITH 1.5PF IN SERIES WITH 50 OHM ADAPTER 1. UNLESS OTHERWISE STATED RX DC VOLTAGES ARE MEASURED WITHOUT RF INTO J401. NOTES:
0Vdc (TX) 4.9Vdc (RX) 0Vdc (RX) 3.9Vdc (TX)
VR (RX)
520MHz 0Vdc, 520MHz 0.55Vdc 450MHz
FREQ
-28dBm 6. MEASUREMENTS MADE BELOW CROSSOVER...

73
ZIF U3
SYNTHESIZERU204
U201
VCO BUFFER
16.8 MHz REF OSCU203
DISC NC
SW_B+
*
3.4VdcREF_OSC_SEL
DAC_SEL 0V OR 5Vdc UNLOCK
3.8Vdc  -23dBm
1200mVpp 1.2Vdc 1.7Vdc 2.5Vdc
1.9Vdc (TX) -7.6 Vdc(Rx) (Note 6)
Else 0 Vdc (Note 7) -7.8 Vdc(Tx) (Note 6) NC
73.35MHz
2.5Vdc2.3VdcCLOCK
SQ_OUT NC
LOCK=5V
-18dBm
4.5Vdc -8dBm
2.2Vdc (RX)
0.1Vdc (TX) 1.4Vdc2.5Vdc 2.3Vdc
DEVIATION
0.1Vdc (RX)5Vdc
7.5Vdc
NC NC
2.1/2.4_MHZ NC
*
NCNC
NC1.6Vdc
280mVpp/kHz
4.6Vdc2.25Vdc (TX)DURING
PROGRAMING NC NC
4.6Vdc (NOTE 5)
(shield in...

74
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 800/900 RF 
8405108X38.J
JP 12/19/97
O JWB
MAEPF-26305-O
MAEPF-26305
MAEPF-26304-O
NUF6410B/C, NUF6498B/C, NUF6500B/C AND NUF6501C (800MHz)
TRANSCEIVER BOARDS’ PARTS LIST AND COMPONENT LOCATION DIAGRAMS 

75
REFERENCE
SYMBOLMOTOROLA
PA R T  N O .DESCRIPTION
3Pack.xls
(Sheet 2)CAPACITOR, Fixed: pF ± 5%; 50V 
unless stated
C1 2311049J23 10uF
C2 2113932K15 0.1uF
C3 2113931F37 3300
C4 2113930F29 12
C5 2113931F37 3300
C6 2113930F43 47
C7 2113930F22 6.2
C8 2113930F39 33
C9 2113932K15 0.1uF
C10 2113930F11 2.2
C11 2113930F51 100
C12 2113930F15 3.3
C13 2311049J23 10uF
C15 2113932E07 0.022uF
C16 2113930F24 7.5
C19 2113930F41 39
C31 2113932E07 0.022uF
C34 2113932K15 0.1uF
C35 2113930F43 47
C36 2113930F13 2.7
C37...

76
1 2 TO UNIVERSAL
CONNECTOR
EXTERNAL
ANTENNA
NCNC NC
3-POLE FILTER
5V
5V 5V 7.4 V RX 4.3 V TX
COUPLER
NC
0V RX5V TX 0V RX
0V TX 5V RX
0V RX.37V TX 7.5V RX0V TX 5V RX
5V TX 0V RX
6.6V TX 7.5V RX
.55- .7V
ALC DAC
3.93V  TX 5V
RF PA
MIXER
BUFFER 3-POLE FILTER
*
**
ANTENNA6-6.8V TX0V RX 
5V TX
RF
AMPLIFIER
RF SWITCH
NOTE:
 INDICATES A COMPONENT  THAT IS NOT PLACED
NC NC
5V
*LO
IF 5.1V TXB+
Tx_RF LCK
CLK
D
.022uF C140
C153
C10
2.2pFD 5VREG DAC_SEL
2.4pFAGC 5VREG
LCK
B+
CLK
R120
2K
J401 CONTACT
PIN11
2PIN2...

77
4.7 V
NC
13 V
2.5Vdc
NC
NC
5V0V RX
NC
0V 5V
*
16.8 MHz
GNDGND GNDGND GNDRAW B+ RAW B+ J301
5V TX 
NC4.7 V
OTHERWISE LOCK
VCOREF OSC5V REG
SYNTHESIZER
FRACTN IC
IF IC
NC0V
2.4 RX
RSSI SQ OUT DATA
DISC 2.1 MHz
CLOCK SYN
4.6V TX4.7 V4.6V
4.6V 0V 5V
4.7 V
2.5 Vdc
TO JUMPER
FLEX P301
U205
VCO MOD
BUFFER
NC NC
NCNC NC
MHz
IF SEL J301
2.8 V  2.4V 2.6V
2.5 Vdc 0.8 V 
3.3V 
0V OR 5V UNLOCKLOCK DET
NC NC
DAC SEL REF OSC SEL SYN SEL
VCO MODSW B+ 16.8
VCO
VCO MOD
2.28V1.65V
3.65 VLCK CLK D
NC
1.55 V
2.5V
2.4V...

78
VIEWED FROM SIDE 2
CHECK
ONE
O.K. AS IS
O.K. AS MARKED(     )
(     )
ISS.
REVISIONRLSE.CORRECTED
AS
MARKED
ILLUSTRATOR DATEENGINEER DATE
PROGRAM DISK
MEDIA & COMMUNICATIONS DEPT.
RLSE.
DWG. NO.
EDITOR DATECHECKER DATEIllustrator
Jedi 800/900 RF
8405108X41.MJP
MAEPF-27152
MAEPF-27152-O
2/7/01
O AM
800MHz: NUF6500D, NUF6533A
900MHz: NUF6499D
VIEWED FROM SIDE 1
ISS.
REVISIONRLSE
.RLSE.
MAEPF-27151-O
O
800MHz: NUF6500D, NUF6533A
900MHz: NUF6499D
NUF/PMUF6500D, NUF/PMUF6533A AND NUF/PMUF6410D (800MHz)...