Motorola Two Way Portable Radio Ht750 Ht1250 Mtx850 Mtx1250 Mtx8250 Mtx9250 Supplement Basic 68p81093c57 B Manual

 MTX4500 Radio Exploded Mechanical View and Parts List 
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3.3 MTX4500 Radio Exploded Mechanical View and Parts List
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ItemMotorola 
Part NumberDescription
 
1
See Accesso-
ries Chapter
Antenna
2 3280529Z01 Knob, Volume
3
3280530Z01
Knob, Frequency
4 1380525Z01
1380525Z03Escutcheon, Top (16CH)
Escutcheon, Top (Dotted)
5
3380644Z01
Escutcheon, Label
6 3280533Z01 Seal, Control Top
7...

 
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3.4 MTX150 Radio Exploded Mechanical View and Parts List
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ItemMotorola 
Part NumberDescription1
Please refer to 
section 7.1.1 on 
page 7-1
Antenna
2 3680529Z01 Knob, Volume
3
3680530Z02
Knob, Channel Selector
3a 4285611Z01 Stop, Mechanical (4-Channel)
4
1380525Z01
Escutcheon, Top
4a 1380525Z04 Escutcheon, Top (4-Channel)
5
3380644Z01
Escutcheon,...

 
MTX1500 Radio Exploded Mechanical View and Parts List
 
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3.5 MTX1500 Radio Exploded Mechanical View and Parts List
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ItemMotorola 
Part NumberDescription1
Please refer to 
section 7.1.1 on 
page 7-1
Antenna
2 3680529Z01 Knob, Volume
3
3680530Z01
Knob, Channel Selector
4 1380525Z01 Escutcheon, Top
5
3380644Z01
Escutcheon, Label
6 3280533Z01 Seal, Control Top
7
6180527Z01
Litepipe, Tx
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4-1
Chapter 4
Transceiver Performance Testing
For the missing sub-sections in this chapter, please refer to Basic Service Manual 68P80906Z54.
4.1 RF Test  Mode
When the radio is operating in its normal environment, the radioÕs microcontroller controls the RF 
channel selection, transmitter key-up, and receiver muting. However, when the unit is on the bench for 
testing, alignment, or repair, it is removed from its normal environment and cannot receive commands 
from its system. Therefore, the internal...

4-2Transceiver Performance Testing
To enter the test mode for a non-display radio:
Button Test (For models with ÓGÓ in location 10 of model number Example: AAH25RCH
6GB6AN)
1. Press the orange button; Ò3/1Ó appears which indicates that switch 3 is in the closed condition.
2. Release the orange button; Ò3/0Ó appears which indicates that switch 3 is in the open condition.
3. Rotate the mode selector knob; Ò4/0Óthrough Ò4/15Ó appears which indicates that knob 4 is in 
mode position 1 through 15.
4. Rotate...

Transceiver Performance Testing4-3
17. Press Option Select2, view Ò136/1Ó; release, view Ò136/0Ó.
18. Press Option Select3, view Ò137/1Ó; release, view Ò137/0Ó.
19. Pressing SB2 for 3 seconds in the Control Head Test mode will cause the radio to return to the RF 
Test mode. 
Figure 4-1. Radio Side Button Locations
Figure 4-2. Two-Line Display
Side Button 2
Side Button 3On/Off
KnobChannel
Selector
Knob
Side Button 1
(programmable)
(programmable)
(programmable)
Annunciators
Phone Call 

4-4Transceiver Performance Testing
Table 4-1.  Receiver Performance Checks
* See Table 4-4 of Basic Service Manual 68P80906Z54 for Test Frequencies.
Test Name Service Monitor Radio Test Set Comments
Reference 
FrequencyMode: PWR MON
4th channel test frequency*
Monitor: Frequency error
Input at RF In/OutTEST MODE,
Test Channel 
4 carrier 
squelch out-
put at 
antennaPTT to continu-
ous (during the 
performance 
check)Frequency error to be 
±600 Hz UHF
Rated Audio Mode: GEN
Output level: 1.0mV RF
4th...

Transceiver Performance Testing4-5
***MDC
* See Table 4-4 of Basic Service Manual 68P80906Z54 for Test Frequencies.
Table 4-2.  Transmitter Performance Checks 
Test 
NameService Monitor Radio Test Set Comments
Reference 
FrequencyMode: PWR MON
4th channel test frequency*
Monitor: Frequency error
Input at RF In/OutTEST MODE,
Test Channel 
4 carrier 
squelch PTT to continu-
ous (during the 
performance 
check)Frequency error 
±600 Hz UHF
Power RF As above As above As above Refer to SpeciÞcations 
Voice...

4-6Transceiver Performance Testing
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