Motorola Cm Radio Basic Manual

Radio Disassembly - Detailed2-9
6.6 Disassembly of Control Head - CM140/CM340
1. Disconnect the flat cable from the Control Head PCB connector. See Figure 2-9
2. Remove the keypad assembly from the control head housing by lifting it up from the face side.
3. Disconnect the speaker socket and remove the speaker from the keypad assembly.
4. Remove the pcb from the keypad assembly.
5. Remove the LENs from the rubber keypad assembly.
.
Figure 2-9Control Head Housing Removal (CM140/CM340)
NOTEDO NOT touch or...

2-10MAINTENANCE
6.7 Disassembly of Control Heads - CM160 and CM360
1. Disconnect the flat cable from the Control Head PCB connector. See Figure 2-10
2. Remove the keypad assembly from the control head housing by lifting it up from the face 
side.
3. Disconnect the speaker socket and remove the speaker from the keypad assembly.
4. Remove the PCB from the keypad assembly.
5. Remove the LCD assembly from the rubber keypad assembly.
Figure 2-10Control Head Housing Removal (CM160/CM360)
NOTEDO NOT touch or...

Radio Assembly2-11
7.0 Radio Assembly
7.1 Chassis Assembly
1. Ensure that the Fugi Poly Thermal Pad is on the small pedestal located on the PA 
compartment of the chassis.
2. Verify that the potentiometer is soldered properly.
3. Take the main PCB and smear thermal paste on LDMOS Power Amplifier, TO220, and Audio 
Power Amplifier. 
4. Slide the main board diagonally into the chassis. 
5. Assemble the O-ring on the RF connector and tighten it using Torque 22 lb.in.
6. Tighten the RF connector security...

2-12MAINTENANCE
7.4 Option Board Installation
1. Follow the disassembly procedure in paragraphs 6.1 to 6.3.
2. Remove and discard the 4xM3 screws holding the main pcb and replace with the 4 spacers 
provided. Torque the spacers to 10 lbs.
3. Insert the jumper flex into the connector on the option board. Notice the orientation of the 
right-angle flex circuit.
4. Insert the other end of the jumper flex into the connector on the main pcb. 
5. Fold the flex circuit under the option board. 
6. Position the...

Radio Exploded Mechanical Views and Parts Lists 2-13
8.0 Radio Exploded Mechanical Views and Parts Lists
8.1 Radio Assembly - 25W Models
Figure 2-12Radio Assembly - 25W Models
Ta b l e 2 - 1Radio Assembly Parts List - 25W Models
Item No. Description Part Number
1 Upper Cover 25W 1589224U01
2 Main Seal 3289329U01
3 Main Shield2689338U01
4 PA Shield 2689337U01
5 RF Connector Clip4289561U01
6 Screw  0310943J12
7 PA  C l i p0789352U01
8  VHF Main PCB
UHF Main PCB
Midband Main PCBFLD6000A
FLE6029A
FUC1600A
9...

2-14MAINTENANCE
8.2 Control Head - CM140/CM340
Figure 2-13Control Head CM140/CM340
Ta b l e 2 - 2Control Head CM140/CM340 Parts List
Item noDescriptionPart No
1Control Head PCBFCN6288A
2Lens6189338U01
3Keypad7589330U01
4Control Head Plastic1589332U01
5Knob Spring (part of knob - item 6)
6Knob, Volume3689331U02
7Speaker5005156Z02
8Flat Cable (not shown)3089305U01 

Radio Exploded Mechanical Views and Parts Lists 2-15
8.3 Control Head - CM160/CM360
Figure 2-14Control Head - CM160/CM360
Ta b l e 2 - 3Control Head CM160/CM360 Parts List
Item no Description Part No.
1Control Head PCBFCN5523A
2 Light Guide 6189624U01
3 Elastomeric Connector2802619S03
4 LCD Holder 0789623U01
5 LCD7202421H33
6 Keypad 7589340U01
7 Speaker 5005156Z02
8  Control Head Plastic 1589333U01
9 Knob Spring (part of Knob - item 10)
10 Knob  3689331U02
11  Lens:
CM160
CM360
6189339U06
6189339U01
12...

2-16MAINTENANCE
9.0 Service Aids
Table 2-4 lists the service aids recommended for working on the radio. While all of these items are 
available from Motorola, most are standard workshop equipment items, and any equivalent item 
capable of the same performance may be substituted for the item listed.
Ta b l e 2 - 4Service Aids
Motorola Part
No.Description Application
RLN4460_Portable Test SetEnables connection to audio/accessory jack. 
Allows switching for radio testing.
GMVN5034A Customer Programming...

Service Aids2-17
WADN4055A Portable Soldering Station Digitally controlled soldering iron.
6604008K010.4mm Replacement TipFor WADN4055A Soldering iron.
6604008K02 0.8mm Replacement Tip For WADN4055A Soldering iron.
0180386A82Anti-static Grounding KitUsed for all radio assembly/disassembly 
procedures.
6684253C72 Straight Prober
6680384A98Brush
1010041A86 Solder (RMA type) 63/37, 0.5mm diameter, 2.2kg (1lb) spool.Ta b l e 2 - 4Service Aids
Motorola Part
No.Description Application 

2-18MAINTENANCE
10.0 Test Equipment
Table 2-5 lists test equipment required to service the radio and other two-way radios.
Ta b l e 2 - 5Recommended Test Equipment
Motorola Part
No.Description Characteristics Application
R2600_NTComms System 
Analyzer (non MPT)This monitor will 
substitute for items with 
an asterisk *Frequency/deviation meter 
and signal generator for wide-
range troubleshooting and 
alignment
*R1072_ Digital Multimeter AC/DC voltage and current 
measurements
*R1377_AC Voltmeter100 µV...