LIST OF EFFECTIVE PAGES Service Instructions Amplifier-Loudspeaker Motorola Kit HSN4035( ) Motorola Publication Number 68P81109C65-O Issue Dates of Original and Revised Pages are: Original:March 1999 The Number of pages in this publication is 33 consisting of the following: Revision Revision...
Safety Summary Exposure to Radio Your Motorola two-way Radio, which generates and radiates radio Frequency Energy frequency (RF) electromagnetic energy (EME), is designed to comply with the following national and international standards and guide- (National and lines regarding exposure of human beings to radio frequency electro-...
Mobile Antenna Install the vehicle antenna external to the vehicle and in accordance with: Installation • The requirements of the antenna manufacturer/supplier • Instructions in the Radio Installation Manual Control Station When radio equipment is used to operate as a control station, it is important that the antenna be installed outside the building and away Operation from places where people may be in close proximity.
W A R N I N G Motorola recommends the following radio installation precautions and vehicle braking system test procedures to ensure that the radio, when transmitting, does not interfere with operation of the vehicle braking system.
Ensure that there is a minimum of two vehicle lengths between front of vehicle and any object in vehicle’s forward path. Then, set vehicle transmission selector to DRIVE. Press brake pedal just far enough to stop vehicle motion completely. Key radio transmitter.
Motorola Publication 68P81109C63 - Installation Instructions for Motorola MCS 2000 Dual Control Head Radio Motorola Publication 68P81109C64 - Retrofit Instructions for Motorola MCS 2000 Radio, Single Control Head to Dual Control Head Conversion Motorola Publication 68P02058U20 - GM 900, MC 900, GM 1200, MCX 1200, GM 2000, MCS 2000, MC 2100 Mobile Radios;...
Test Setup 1. Secure the test equipment listed in Table 1 or its equivalents. 2. Refer to Figure 1 and Table 2 on page 3 and assemble a test connector for the amplifie5-loudspeaker as follows: 1. Crimp a 24-inch length of stranded insulated 18 AWG hookup wire onto each of the four female connector pins.
Spanner Nut Bit for Adjustable Motorola 66-80371B34 Torque Screwdriver Motorola Test Box RKN4460( ) can be substituted for the 4-Ohm 20-Watt fixed resistor specified in table 1. When pins 2 and 6 of female connector on back of test box are shorted Note...
START TEST 1. Turn Off Power Supply. Perform Procedure Titled 2. Perform Procedure Titled Replacing 9-Foot Cable. 13.8Vdc Sound Output Separating Front and Present Between Terminals If That Does Not Repair From Rear Housings. TP12 (+) and TP13 (-) Fault, Perform Procedure Amplifier-Loudpeaker? 3.
Repair Procedures Initial Disassembly 1. Refer to Figure 3. Push tips of two identical or similar small ﬂat blade screwdrivers into opening between front and rear housings. 2. Push both screwdriver blades simultaneously away from speaker to pop up and release front housing from rear housing. When performing step 3, be very careful to avoid damaging loudspeaker cone, which faces upward directly below front cover.
PCB. Discard old speaker. 3. Using a soldering iron, connect wires disconnected in step 2 to terminals of new speaker, Motorola part no. 5085891B01. Either wire can be connected to either speaker terminal. 4. Perform procedure titled Final Reassembly on page 15 .
6. 4. Carefully lift PCB straight up and out of rear housing. 5. Apply a thin layer of thermal compound, Motorola part no. 1110022A55, to shaded area shown in Figure 5. 6. Mount new PCB to inside of rear housing using the four M3x0.5 machine screws removed in step 3.
Table 5 Printed Circuit Board Connections PCB Terminal Wire Color From/To Component Number 9-Foot Cable White 9-Foot Cable Blue Volume Pot. Counterwise End) Gray Volume Pot. Center (Arm) White Volume Pot. Clockwise End Black Speaker (Either Terminal) TP10 Black Speaker (Either Terminal) TP11 TP10 TP11...
3. Refer to Figure 6 on page 11. Pull knob straight off of Volume potentiometer shaft. 4. Using an adjustable torque screwdriver, Motorola kit RSX4043( ) with a spanner wrench tip, Motorola part no. 6680371B03, remove spanner nut that retains Volume potentiometer in rear housing.
8. Place a new wave washer, Motorola Part No. 3205082E48, over threaded shaft of new potentiometer. 9. Refer to Figure 7 on page 12. Install a new O-ring. Motorola Part No. 3205082E48, on a new spanner nut, Motorola Part No.
4. Refer to Figure 10 on page 15. Insert unwired end of new 9-foot cable, Motorola part no. 3085853B01, into new strain relief, Motorola part no. 428541A02, so that cable jacket protrudes 0.25- inch or slightly less past inside edge of strain relief.
Table 8 9-Foot Cable Connections to PCB PCB Terminal Wire Color Number Blue Black White/Black Bare White Strain Relief Locknut Rear Housing Surface must be flush with exterior surface of rear housing Strain Relief 9-Foot Cable MAEPF-26575-O Figure 9 Removing and Installing 9-Foot Cable...
Repair Parts for Final The repair parts required for final reassembly of the Amplifier- Reassembly Loudspeaker are listed in table 9. Table 9 Repair Parts Required for Final Reassembly Motorola Part Quantity Description Required 3285203C01 Gasket (Required for Final Assembly of...
PCB. 2. Refer to Figure 11. Remove and discard gasket from front housing. 3. Lubricate new gasket Motorola part no. 3285203C01, using gasket lubricant Motorola part no. 1110027B23. 4. Place new gasket into front housing being certain that gasket is oriented as shown in Figure 11.
Exploded View and Figure 12 is an exploded view, which illustrates and locates all repair parts for the Amplifier-Loudspeaker, Motorola kit HSN4035( ). Table 8 Repair Parts List lists all repair parts for the Amplifier-Loudspeaker and provides Motorola part numbers for all repair parts. Table 10 crossreferences the repair parts to the parts illustrated on Figure 12.
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