Motorola Magone Basic 6816101h01 A Manual

							 
 
 
 
 
Mechanical View and Parts List 
 
 
Reference 
No 
 
 
 
 
2-15 
 
Table 2-1 Parts List 
 
Part No Part Name Qty  
48 PMAD4050_R Mag One™ 136-150MHz Antenna 1 
PMAD4051_R Mag One™ 150-174MHz Antenna 1 
PMAE4019_R Mag One™ 403-425MHz Antenna 1 
PMAE4020_R Mag One™ 450-470MHz Antenna 1 
PMAE4028_R Mag One™ 490-512MHz Antenna 1 
49 PMLN4743_ Mag One™ Spring Belt Clip 1 
50 PMNN4071_R Mag One™ NiMH Battery 1200mAH 1 
PMNN4071_RC Mag One™ NiMH Battery (Chinese Label) 1 
51 PMDN4058_R PCB-Chassis Tape for PMUD2085A_, 1 
PMUD2086A_,  PMUD2087A_,  
PMUD2171A_,  PMUE2384A_,  
PMUE2385A_, PMUE2386A_  
PCB-Chassis Tape for PMUD2085B_, 2 
PMUD2086B_, PMUD2087B_, 
PMUD2171B_, PMUD2088A_, 
PMUD2221A 
PCB-Chassis Tape for PMUE2384B_, 3 
PMUE2385B_, PMUE2386B_, 
PMUE2387A_, PMUE2736A_ 
52 PMDN4025_R O-Ring 1 
53 PMDN4027_R PCB Screw 10 
*boards  must  be  used  with  PMDN4011_R  and  PMDN4024_R.  
† boards must be used with PMDN4067_R and PMDN4068_R.   
						

							 
 
 
 
 
2-16 Service Aids 
 
9.0 Service Aids 
Table 2-2 lists service aids recommended for working on the Mag One™ by Motorola Radios. While all of 
these items are available from Motorola, most are standard shop equipment items, and any equivalent 
item capable of the same performance may be substituted for the item listed.  
Table 2-2    Service Aids  
Motorola Part 
No. 
PMDN4038_R 
PMDN4039_R 
PMDN4040_R 
PMDN4041_R 
 
PMDN4043_R 
 
PMDN4060_R 
 
 
PMDN4042_R 
 
PMDN4054_R 
 
PMDN4044_R 
 
 
PMDN4026_R 
 
PMDN4053_R 
 
 
 
 
 
 
 
 
TT907A  National  
Service  Technical  
Guide 
Description 
 
Chassis Opener 
Crab  Eye  Nut  Opener 
Test Box 
RF Adapter 
 
Programming/Test 
Cable 
Cloning Cable 
 
 
Battery Eliminator 
 
Antenna Ground Plate 
 
T-Head Ceramic 
Tuning Tool 
 
Flat  Ceramic  Tuning 
Tool (1.8mm) 
Flat  Ceramic  Tuning 
Tool (0.9mm) 
Phillips Head 
Screwdriver 
Flat  Head  Screwdriver 
Tweezers 
 
Repairing  Leadless 
Component 
Assemblies 
Application 
 
To disassemble the radio 
To fasten or remove crab-eye nut. 
Enables connection to the audio/accessory jack. 
Adapts  radio  antenna  port  to  BNC  cabling  of  test 
equipment. 
Connects radio to Computer. 
 
Allows a radio to  be  duplicated from a master radio  by 
transferring programmed data from the master radio to 
the other. 
Interconnects  radio  to  power  supply  (red-and-black 
power cable included). 
To  improve  grounding  while  conducting  tuning  and 
measurement. 
To  tune  the  variable  resistor  for  audio  and  sub-audio 
modulation  adjustment;  tuning  points  accessible  via 
battery-chassis area. 
To  tune  the  variable  resistor  for  audio  and  sub-audio 
modulation  adjustment;  requires  disassembly  of  PCB 
from chassis to get access to tuning point. 
 
 
To remove M2 and M2.6 Phillips screws. 
 
To remove speaker from speaker felt. 
To  remove  smaller  components  i.e.  latch  pad  and 
speaker connector. 
Guide  on  how  to  successfully  remove  and  replace 
surface mount devices.   
						

							 
 
 
 
 
Test Equipment 2-17 
 
10.0 Test Equipment 
Table 2-3 lists test equipment required to service the Mag One™ by Motorola Radios and other twoway 
radios.  
Table 2-3    Recommended Test Equipment 
Motorola 
Part No. 
R2600 
 
 
R1038 
 
S1339A/220 
 
Description Characteristics 
 
Communication 
Analyzer 
 
Handheld Multimeter 
 
RF Millivolt Meter 100mv to 3VRF 
220V 100kHz to 1.2GHz 
 
Application 
 
Frequency/deviation meter and signal 
generator for wide-range troubleshooting 
and alignment 
AC/DC  Voltage  and  current  measure- 
ments 
RF Level Measurements  
 
 
 
11.0  Programming Cable (PMDN4043_R)  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 2-15 Programming Cable Schematic   
						

							 
 
 
 
 
2-18 
 
12.0 Cloning Cable (PMDN4060_R )otes 
    
2 . 5 p i e 
 
 
 
 
 
Figure 2-16 Cloning Cable Schematic 
 
13.0 Test Box (PMDN4040_R) 
        
2 . 5 p i e  
     
1M ohm 1 0uF 8 ohm 
AUDIO 1  2 4ohm 1 Mohm AUDIO 1 S W1 1 0uF     3. 5pe   S W 2 8 ohm or 24 ohm T X AU DI O  2 . 2Kohm 2 .5 p e    
SW 3 
Figure 2-17 Test Box Schematic   
						

							 
 
 
 
 
3-1  
Section 3  
RADIO TUNING  
 
1.0 Introduction 
This chapter provides an overview of the hardware tuning for this Mag One™ Series radio. There is no 
software tuning required.  
In  order  to  perform  the  manual  tuning  procedures,  the  radio  needs  to  be  disassembled  to  the  PC 
Board.  
 
Following are the parameters that can be tuned:- 
1. Transmitter Tuning 
a.    High Power Tuning 
b.    Low Power Tuning 
c. Frequency Tuning 
d.    Modulation Balancing 
e.    Maximum Modulation 
f. Subtone Modulation 
2. Receiver Tuning 
a.    Wide Band Sinad Tuning  
b.    Narrow Band Sinad Tuning  
3. PLL Synthesizer Tuning 
a.    Rx PLL Frequency Tuning  
b.    Tx PLL Frequency Tuning  
 
For a list of Service Aids required, refer to Table 2-2 on page 2-16Parts ListParts List   
						

							 
 
 
 
 
3-2 Hardware Tuning Setup and Procedure 
 
2.0 Hardware Tuning Setup and Procedure 
 
2.1 Tuning Frequency 
Table 3-1    Frequencies Used for Tuning. 
Band Tuning Parameter Frequency (MHz) 
 
PLL Synthesizer 149.975 
Transmitter 136.025 
Receiver 136.025 VHF 136 - 150 MHz Modulation Balance 136.025 (N band) 
Sub-Tone Modulation 149.975 (S band) 
Maximum Modulation 149.975 (S band) 
PLL Synthesizer 173.975 
Transmitter 150.025 
Receiver 150.025 VHF 150 - 174 MHz Modulation Balance 150.025 (N band) 
Sub-Tone Modulation 173.975 (S band) 
Maximum Modulation 173.975 (S band) 
PLL Synthesizer 424.975 
Transmitter 403.025 
Receiver 403.025 UHF 403 - 425 MHz Modulation Balance 424.975(N band) 
Sub-Tone Modulation 403.025(N band) 
Maximum Modulation 403.025(N band) 
PLL Synthesizer 469.975 
Transmitter 450.025 
Receiver 450.025 UHF 450 - 470 MHz Modulation Balance 469.975(N band) 
Sub-Tone Modulation 450.025(N band) 
Maximum Modulation 450.025(N band) 
 
2.2 Preparation Before Tuning (refer to Figure 3-1) 
1. Set Power Supply to 7.5V and then connect to the radio. 
2. Connect the connector and ground plate to the radio antenna port.  
						

							 
 
 
 
 
Hardware Tuning Setup and Procedure 3-3 
 
3. Connect the radio to the test equipment. 
 
Ground Contact Finger  
   
TEST BOX  Antenna Port  Acc 8 ohm 24 ohm 
Jack 
BNC BNC 
Radio Tx Rx     
N Type  
TEST EQUIPMENT 
BNC BNC 
Input Hi Output Lo  
 
Figure 3-1 Radio Tuning Setup  
NOTE  On the Test Box, select 8 ohm resistance when using with PMUD2085A_, PMUE2384A_.  
 For all other kits, please select 24 ohm resistance.  
NOTE  The radio may need to be disassembled to the PC board level to access certain tuning  
 ports. For disassembly, refer to Radio Disassembly — Detailed   on page 2-5  
 
2.3 Transmitter Tuning 
 
2.3.1 High Power 
1. Connect the radio to power meter. 
2. Set the radio to the appropriate tuning frequency (refer to Table 3-1). 
3. Key up the radio.  
						

							 
 
 
 
 
3-4 Hardware Tuning Setup and Procedure 
 
4. Using the ceramic tool, adjust R425 to tune high power (refer to Figure 3-2). 
 
 
 
 
 
 
 
 
R425 
R426 
 
R216 
FL701 
R215 
 
 
Figure 3-2 Tuning Ports 
 
2.3.2 Low Power 
1. Connect the radio to power meter. 
2. Set the radio to the appropriate tuning frequency (refer to Table 3-1). 
3. Key up the radio. 
4. Using the ceramic tool, adjust R426 to tune low power (refer to Figure 3-2). 
 
2.3.3 Frequency Tuning 
1. Set the radio to the appropriate tuning frequency (refer to Table 3-1). 
2. Using the ceramic tool, adjust FL701 to tune the frequency (refer to Figure 3-2). 
 
2.3.4 Modulation Balancing 
1. Set the radio to the appropriate tuning frequency (refer to Table 3-1). 
2. On the test equipment, set the following configurations: 
Audio bandwidth: 0.25Hz to 15,000Hz. 
De-emphasis: Off 
FM: Peak negative 
3. Using the Audio Analyzer, inject a 0.3kHz tone to the radio through the test box. 
4. Key up the radio.  
						

							 
 
 
 
 
Hardware Tuning Setup and Procedure 3-5 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
R159 TP1 
 
R174 
R172 
 
Figure 3-3 Top Side of PCB 
5. Using the ceramic tool, adjust R174 (refer to Figure 3-3) to modulation balance as per Figure 
3-4. 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 3-4  
 
 
 
 
Improperly tuned modulation balance can cause errors in Tx sub-tone modulation.   
						

							 
 
 
 
 
3-6 Hardware Tuning Setup and Procedure 
 
2.3.5 Maximum Modulation 
1. Set the radio to the appropriate tuning frequency (refer to Table 3-1). 
2. On the test equipment, set the following configurations: 
Audio bandwidth: 0.25Hz to 15,000Hz 
De-emphasis: Off 
FM: Peak negative 
3. Using the Audio Analyzer, input a 1kHz tone + 67Hz subtone, 120mV to the radio through the 
test box. 
4. Key up the radio. 
5. Using the ceramic tool, adjust R159 to tune maximum modulation between 2.4 ± 0.02KHz for 
narrow band or under 5KHz for wide band (refer to Figure 3-3). 
2.3.6 Subtone Modulation 
1. Set the radio to the appropriate tuning frequency (refer to table3-1). 
2. On the test equipment set the following configuration 
Audio bandwidth: 0.25Hz to 15,000Hz 
De-emphasis: Off 
FM: Peak negative 
3. Program radio subtone to 67Hz (CTCSS). 
4. Key up the radio. 
Table 3-2    Subtone Modulation Configurations 
Band U1, U2 V1, V2 
 
Subtone Level 0.42 ± 0.02kHz 0.96 ± 0.02kHz 
5. Using the ceramic tool, adjust R172 to tune subtone modulation to the configurations in Table 
3-2. 
 
2.4 Receiver Tuning 
 
2.4.1 Wide Band Sinad Tuning 
1. Set the radio to the appropriate tuning frequency (refer to Table 3-1). 
2. Set RF Signal Generator level to -47dBm at 1 kHz tone, 60% of the deviation. 
3. Find the SINAD level 7 of the radio to decrease RF Signal Generator level. 
4. Using the ceramic tool, adjust R215 clockwise to off the audio output. 
5. Then adjust R215 counterclockwise at the point where the Audio Frequency signal appears 
(refer to Figure 3-2). 
 
2.4.2 Narrow Band Sinad Tuning 
1. Set the radio to the appropriate tuning frequency (refer to Table 3-1). 
2. Set RF Signal Generator level to -47dBm at 1 kHz tone, 60% of the deviation. 
3. Find the SINAD level 7 of the radio to decrease RF Signal Generator level. 
4. Using the ceramic tool, adjust R216 clockwise to off the audio output (refer to Figure 3-2).