Motorola Astro Digital Spectra Digital Spectra Plus Basic 6881076c20 E Manual

							6881076C20-EFebruary 3, 2003
Basic Troubleshooting: Synthesizer Troubleshooting 9-13
Synthesizer 
MalfunctioningSynthesizer Not Locked Check the synthesizer lock line (pin 14 of 
J500).
If > 1 V, then the synthesizer is not locked.
Go to Does Not Lock on Some Channels 
above.
Reference Oscillator 
Not On Frequency/
Working1. Check the reference oscillator 
frequency.
It should be 16.8 MHz ±4 Hz.
THIS MUST BE MEASURED @ 25° C
(77° F) TO BE ACCURATE.
2. Retune the reference oscillator if 
frequency is incorrect.
VOCON Board If the reference oscillator will not tune on 
frequency, is reference control voltage (pin 
2 of J500) tuning 1.5 to 3.0 volts, and is 
the 5 volt supply 5 V ±.2 V? If not, replace 
the VOCON board.
Programming 
(EEPROM)Check mode programming information to 
ensure that the correct frequency 
programming information has been 
entered.
RF Board Replace the RF board.
Table 9-7.  Synthesizer Troubleshooting Chart (Continued)
SymptomPossible CauseCorrection or Test (Measurements 
Taken at Room Temperature) 
						

							February 3, 20036881076C20-E
Notes
9-14Basic Troubleshooting: Synthesizer Troubleshooting 
						

							Chapter 10 Functional Block Diagrams and Connectors
This chapter contains the ASTRO Digital Spectra and Digital Spectra Plus functional block diagrams and connector locations. 
						

							10-2Functional Block Diagrams and Connectors: Digital Spectra Functional Block Diagram (Models W3, W4, W5, W7, and W9)
February 3, 20036881076C20-E10.1 Digital Spectra Functional Block Diagram (Models W3, W4, W5, W7, and W9)
Figure 10-1.  Digital Spectra Models W3, W4, W5, W7, and W9 Functional Block Diagram
PRESELECTOR
MIXERINJECTION
FILTER RX
(COAXIAL CABLE)
RX BUFFER
DIVIDERVCO TX BUFFER
PREAMP
TXVCO BOARDFRONT-END RECEIVER BOARD
COAXIAL
CABLE FROM
POWER
PA
TO
POWER
PA
VF VOLTAGE
SOURCE
MICROPROCESSOR
EEPROM
SERIAL BUS
INTERFACE
TO POSITIVE
TERMINAL OF
VEHICLE
BATTERY
LPF/
ANTENNA SWTXRX
RX TX
ANTENNA
CONNNECTOR
HIGH-POWER PA
DC POWER
CABLETO POSITIVE
TERMINAL OF
VEHICLE
BATTERYCHASSIS
GND FUSE
ANTENNA
CONNNECTOR
MID/LOW-POWER PA
DIRECTIONAL 
COUPLER/
DETECTORTXRX
TX
DIRECTIONAL
COUPLER/
DETECTORLPF/
ANTENNA SW
TX
BUFFER
RIBBON
CABLERX
DC POWER
CABLE
CHASSIS
GND FUSE
REAR ACCESSORY
CONNECTION
J2
P2 VIP
IN/OUT
IGNITION
CABLEFUSE
DASH MOUNT MODELS
RX
SERIAL BUS
INTERFACE
HIGH VOLTAGE
VF DRIVERMICRO-
PROCESSOR VACUUM
FLOURESCENT
8 CHARACTER
SPEAKER
REMOTE MOUNT MODELS
FUSEFUSE
BATT CABLE (GRN)
IGN. CABLE (ORG)
VIP IN/OUTREMOTE
INTERCONNECT
BOARDHANDHELD
INTERCONNECT
BOARD DASH
INTERCONNECT
BOARD
W3 HANDHELD CONTROL HEAD
SWITCHES
MICROPHONE
REMOTE
INTERCONNECT
BOARD
CONTROL HEAD (REMOTE  MOUNT)
(W5/W7 PUSHBUTTON AND W4 ROTARY MODELS)
8-CHARACTER
VACUUM
FLOURESCENT
DISPLAY
MICRO-
PROCESSORCONTROL HEAD (DASH MOUNT)
(W5/W7 PUSHBUTTON AND W4 ROTARY MODELS)
HIGH VOLTAGE
VF DRIVER SERIAL BUS
INTERFACE
DISPLAY
DRIVER
DISPLAY
VACUUM
FLUORESCENT
11-CHARACTER
HIGH VOLTAGE
VF DRIVER
CONTROL HEAD (REMOTE  MOUNT)
(W9 PUSHBUTTON MODEL)
MID-
POWERLOW-POWER
RIBBON
CABLE
FROM
COMMAND
BOARD FROM
VCO
BOARDTO
FRONT-END
RECEIVER
BOARD
COAXIAL
CABLE COAXIAL
CABLE
TO
FRONT-END
RECEIVER
BOARD
FROM
VCO
BOARD
FROM
COMMAND
BOARD
TO
COMMAND
BOARD
DSP
SUPPORT
CIRCUIT
MODULE
MODULATION OUT
2.4MHz REF
DIGITAL RX IN
SBI
DIGITAL SIGNAL
PROCESSOR
(DSP)
RAM
ROM
DATA IN
DATA OUT
ENCRYPTION
BOARD
(OPTIONAL)
MICROCONTROL
UNIT
(MCU)
AND
SUPPORT LOGIC IC
(SLIC)
RAMROM
EEPROM
MBEPF-23553-B
4 POLE
XTAL
SYNTHESIZER
PRESCALER 16.8MHz
XTAL
D/A
IC
AUDIO
PA
SERIAL
BUS
INTERFACE
POWER
CONTROL/
REGULATOR
REF
TUNE
INPUTMOSI
INPUT
MOSI
TO
POWER
PA
COMMAND BOARD
TO
INTERCONNECT
BOARD OR
DIRECTLY
TO W9
CONTROL
HEAD
VOCON BOARD
FROM
INTERCONNECT
BOARD
RF BOARD
IF AMPMIXER
L/C
L/C 450Khz
FILTER109.2MHz
ABACUS
IC
REF
2.1MHz
LOD OUT
D OUT
SBI
ODC
REF
TUNE
MOSI 
						

							Functional Block Diagrams and Connectors: Digital Spectra Plus Functional Block Diagram (Models W3, W4, W5, W7, and W9)10-3
6881076C20-EFebruary 3, 200310.2 Digital Spectra Plus Functional Block Diagram (Models W3, W4, W5, W7, and W9)
Figure 10-2.  Digital Spectra Plus Models W3, W4, W5, W7, and W9 Functional Block Diagram
PRESELECTOR
MIXERINJECTION
FILTER RX
(COAXIAL CABLE)
RX BUFFER
DIVIDERVCO TX BUFFER
PREAMP
TXVCO BOARDFRONT-END RECEIVER BOARD
COAXIAL
CABLE FROM
POWER
PA
TO
POWER
PA
VF VOLTAGE
SOURCE
MICROPROCESSOR
EEPROM
SERIAL BUS
INTERFACE
TO POSITIVE
TERMINAL OF
VEHICLE
BATTERY
LPF/
ANTENNA SWTXRX
RX TX
ANTENNA
CONNNECTOR
HIGH-POWER PA
DC POWER
CABLETO POSITIVE
TERMINAL OF
VEHICLE
BATTERYCHASSIS
GND FUSE
ANTENNA
CONNNECTOR
MID/LOW-POWER PA
DIRECTIONAL 
COUPLER/
DETECTORTXRX
TX
DIRECTIONAL
COUPLER/
DETECTORLPF/
ANTENNA SW
TX
BUFFER
RIBBON
CABLERX
DC POWER
CABLE
CHASSIS
GND FUSE
REAR ACCESSORY
CONNECTION
J2
P2 VIP
IN/OUT
IGNITION
CABLEFUSE
DASH MOUNT MODELS
RX
SERIAL BUS
INTERFACE
HIGH VOLTAGE
VF DRIVERMICRO-
PROCESSOR VACUUM
FLOURESCENT
8 CHARACTER
SPEAKER
REMOTE MOUNT MODELS
FUSEFUSE
BATT CABLE (GRN)
IGN. CABLE (ORG)
VIP IN/OUTREMOTE
INTERCONNECT
BOARDHANDHELD
INTERCONNECT
BOARD DASH
INTERCONNECT
BOARD
W3 HANDHELD CONTROL HEAD
SWITCHES
MICROPHONE
REMOTE
INTERCONNECT
BOARD
CONTROL HEAD (REMOTE  MOUNT)
(W5/W7 PUSHBUTTON AND W4 ROTARY MODELS)
8-CHARACTER
VACUUM
FLOURESCENT
DISPLAY
MICRO-
PROCESSORCONTROL HEAD (DASH MOUNT)
(W5/W7 PUSHBUTTON AND W4 ROTARY MODELS)
HIGH VOLTAGE
VF DRIVER SERIAL BUS
INTERFACE
DISPLAY
DRIVER
DISPLAY
VACUUM
FLUORESCENT
11-CHARACTER
HIGH VOLTAGE
VF DRIVER
CONTROL HEAD (REMOTE  MOUNT)
(W9 PUSHBUTTON MODEL)
MID-
POWERLOW-POWER
RIBBON
CABLE
FROM
COMMAND
BOARD FROM
VCO
BOARDTO
FRONT-END
RECEIVER
BOARD
COAXIAL
CABLE COAXIAL
CABLE
TO
FRONT-END
RECEIVER
BOARD
FROM
VCO
BOARD
FROM
COMMAND
BOARD
TO
COMMAND
BOARD
CODEC
KRSIC
MODULATION OUT2.4MHz REF
DIGITAL RX IN  D OUT
DIGITAL RX IN  D OUT
SBI
ADDAGDATA IN
DATA OUT
ENCRYPTION
BOARD
(OPTIONAL)
DUAL-CORE
PROCESSSOR
(MCU AND DSP)
MBEPF-27239-O 
4 POLE
XTAL
SYNTHESIZER
PRESCALER 16.8MHz
XTAL
D/A
IC
AUDIO
PA
SERIAL
BUS
INTERFACE
POWER
CONTROL/
REGULATOR
REF
TUNE
INPUTMOSI
INPUT
MOSI
TO
POWER
PA
COMMAND BOARD
TO
INTERCONNECT
BOARD OR
DIRECTLY
TO W9
CONTROL
HEAD
VOCON BOARD DSP SUPPORT IC’S
FROM
INTERCONNECT
BOARD
RF BOARD
IF AMPMIXER
L/C
L/C 450Khz
FILTER109.2MHz
ABACUS
IC
REF
2.1MHz
LOD OUT
D OUT
SBI
ODC
REF
TUNE
MOSI
SRAM
FLASH 
						

							10-4Functional Block Diagrams and Connectors: Radio Connectors
February 3, 20036881076C20-E10.3 Radio ConnectorsFigure 10-3.  J0103 Remote-Mount Control Head Connector
Figure 10-4.  J5 Control Cable for Remote-Mount Control HeadFigure 10-5.  J6 Radio Operations Connector
Figure 10-6.  J2 Rear Accessory Connector
Figure 10-7.  P104 Microphone Jack
12
345
13
12 11
10 8 7
14151617
48 49 40 41 34 43 4435
36
3738
45 46 4750
VIP 2
OUTVIP 1
OUT
VIP 2
IN
VIP 1
INDATA
OUT
MIC
LO
MIC
HISPKR
LO
SPKR
LOMIC
HI
MIC
LO BATT -
VF
SENSE
1 IGN +ANALOG
GND
BUS +SWB +DIG
GND
PTT/HUB
REFPTT
RESETEMGCYBATT +
(A+)BATT -
VF
SENSE
2
IGN -
BUSY SWB +DIG
GND
SPARE
-1
SPARE
-2
29
28 27
26
303132
18 1920
21 23 24 33
VIP 3
OUT
SWB +DIG 
GND
VIP 3
INCLOCK HUB
SWB +SPKR
HINC
BATT +DIG
GND
BUS SPKR
HINC NC
RADIO MIC
VIP
MAEPF-21670-A
EMERMIC
HIANA
GNDTX
AUDFLT
AUDIO(FILT-AUD
SHLD)
MIC
LODET
AUDRX
AUDIOBUS +
IGN RESET
B+
BUSY
SPKR
LOSWB + SPKR
HI
DIG
GNDBUS -1 2 3 4 5 6 13
12 11 10 9 8 7
14 15 16 17 18 19 20 21
22 23 24
25
MAEPF-23798-O
(PTT  )
BUS
SHLD
A +RESET SPARE-2
SPARE-1RSSI


EMERMIC
HIANA
GNDTX
AUDFLT
AUD NCFIL AUD
SHLD
MIC
LODET
AUDRX
AUDBUS +
IGNPTT/
VIP IN 1
SPKR
HIBUSY BUS
SHIELDRESET
SPKR
LOSWB +A + DIG
GNDSPARE
2
SPARE
1RSSI/
VIP IN 2
BUS -
1 2 3 4 5 6 13
12 11 10 9 8 7
14 15
16
17 18 19 20 21
22 23 24
25
MAEPF-21669-A
DIG
GNDSPKR
HIEMER SPKR
LONOTE 1
IGNITIONVIP OUT 2
NOTE 1
SWB+
PTT/
TX-RS232BUSY1 2 3 4 5 6 87
9
10 11
12 13 14 15
MAEPF-23799-O
VRS TX/
CTS-RS232
MIC HI/RESET/
RTS-RS232BUS+ VIP OUT 1
NOTE1
DISC. AUD/
RX-RS232BUS-
FUNCTIONAL ONLY IN DASH-MOUNT
CONFIGURATION. N.C. IN REMOTE-MOUNT
CONFIGURATION. NOTES:
1.
GNDDIG
GND
MIC
LO
PTT/
PROGRAM
RESET9
10 7
8 5
6
MAEPF-23800-A
PROG
RX
DATASWB+
PINS 1, 2, 9, AND 10 ARE NO CONNECTIONS (NC)
ON P104 OF A REMOTE-MOUNT CONTROL HEAD.
DETAIL SHOWN FROM
CONTROL HEAP FRONT VIEW
(MALE PIN VIEW)V
pp1
23
4
HUB/
BUSY
KEYFAIL/
PROG
TX DATA
MIC HI/
PROG
RX/TX ENABLE







 
						

							Functional Block Diagrams and Connectors: Radio Connector Locations10-5
6881076C20-EFebruary 3, 200310.4 Radio Connector Locations
Figure 10-8.  Dash-Mount Radio Connector Locations
Figure 10-9.  Remote-Mount Radio Connector Locations
10.5 Radio Connector Locations (cont.)
Figure 10-10.  Command Board Connector Locations
Figure 10-11.  VOCON Board Connector Locations
MAEPF-24496-O
0
PWR
Mode
Scan
Phon
Sel
Call
VolD
IM
H
O
M
EX
M
IT
B
U
S
Y
1
2
3
4
56
7
8
9
0S
ts
M
s
g
H
/L
M
o
n
D
ir
R
c
l
D
e
l
DASH-MOUNT RADIO
J2ANTENNA
PWR
P502
P104
MAEPF-24497-A
0
PWR
M
o
d
e
S
c
a
n
P
h
o
n
S
e
l
C
a
ll
V
o
lD
I
M
H
O
M
EX
M
IT
B
U
S
Y
1
2
3
4
56
7
8
9
0Sts
Msg
H/L
Mon
Dir
Rcl
Del
J2
J5P506
REMOTE-MOUNT
CONTROL HEAD REMOTE-MOUNT
RADIO
J6 J0103
P104ANTENNA
PWR
COMMAND BOARD
(VIEWED FROM SIDE 1)
P503
F500
U45015
24 19
1
6 J500
2
50
491
25 30
P501
P502
1 38 29
1020
19 13
12 14
13
12
11
10
9
8
3 6
5
4
2
171214
13 2526VOCON BOARD
(VIEWED FROM SIDE 2)
49
50J501
25 24
J801 2
1 1
2 
						

							10-6Functional Block Diagrams and Connectors: Extender Cable (P501)
February 3, 20036881076C20-E10.6 Extender Cable (P501)
Figure 10-12.  P501 Extender Cable
10.7 Control Head Cabling Diagram
Figure 10-13.  Control Head Cabling Diagram
15 17 19 131197531 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49
16
18
20
14
12 108
642
22 24 26 28 30 32 34 36
38
40
42
44
46
48
50
P501
EXTENDER
CABLE
(3080370E06)
(FACING TOWARD
CONTROL HEAD)
J501
COMMAND BOARD
P1001
SPARE 2
EMERGENCY
SPARE 1
DIG GND
SWB+
BUS +
BUS -
BUSY
BUS SHIELD
RESET
DET AUDIO
ANA GND
PTT
MIC HI
MIC LO
SPKR HI
SPKR LO
A+
RSSI
RX AUDIO RED
VIO
BRN
BLU
YEL
WHT
BLK
BLK/RED
BARE
BLK/ORG
BLK/BRN
SHIELD
BLK/GRN
SHIELD
BLK/YEL
SHIELD
ORG
GRN
CONTROL HEAD
ORG
GRN NC
NC
MIC LO
MIC HI
SWB+
HUB
PTT
PTT/HUB REF
SWB+
SWB+
SWB+
DIG GND
DIG GND
DIG GND
(DATA IN)
(STROBE)
(CLOCK)
(DATA OUT) BUS +
BUS -
BUSY
RESET
DET AUDIO
ANA GND
PTT IGN+
IGN-
BATT+
BATT+
BATT-
SPARE 2
BATT-
EMERGENCY
SPARE 1
BLK/GRN
BLK/ORG DIG GRD
SWB+
P5
RADIO
15
32
47
30
31
29
14
27
28
49
48
17
50
33
26
45
16
46
12
13
44
11
10
43
7
8
41
40
24
23
18
19
3
20
21
36
4
3
37
2
1
34
38
5
SPEAKER
17
13
16
18
22
5
14
23
21
19
9
0
1
12
11
25
24
20
15
7
1
2
3
1
2
3
VIP IN
VIP OUT 
						

							Chapter 11 Exploded Views and Parts Lists
This chapter contains the exploded views and associated parts lists for each of the ASTRO Digital Spectra and Digital Spectra Plus control heads. Tables containing pushbutton parts lists are also included. 
						

							February 3, 20036881076C20-E11-2Exploded Views and Parts Lists: Model W3 Hand-Held Control Head Exploded View11.1 Model W3 Hand-Held Control Head Exploded View
Figure 11-1.  Model W3 Hand-Held Control Head Exploded View
2
1
3
4
5
6
7
8
415
14
109
12
11
13
Table 11-1.  Model W3 Hand-Held Control Head Exploded View Parts List
Item No.
Motorola Part No.
Description
1 Not available LABEL
2 0105955T26 ASSEMBLY, Rear Cover
3 3205082E93 SEAL, Main
4 4205343Y01 RETAINER, Snap (Qty 2)
5 0102707D81 BOARD, SB9600 Circuit
6 7505832X01 KEYPAD (Part of Item 7)
7 0102707D86 ASSEMBLY, Housing (Includes Items 6 and 9 thru 
13)
8 0102708D08 ASSEMBLY, Microphone
9 7505618V02 ACTUATOR, PTT (Part of Item 7)
10 4505850X01 LEVER, PTT (Part of Item 7)
11 3205839X01 INDICATOR, Transmit (Part of Item 7)
12 3805835X01 BOOT, PTT (Part of Item 7)
13 3305409X17 LABEL (Part of Item 7)
14 3205274V01 WEDGE, Seal Support
15 HKN6095_ ASSEMBLY, Cable
Note:  _ = The latest version kit. When ordering, refer to your specific kit 
for this suffix letter.
Universal Crypto Module (UCM) part numbers and descriptions are 
listed in the Encryption chapter of this manual.