Motorola Cp200 Detailed 6880309n62 C Manual

Table of Contentsix
6880309N62-CJune, 2005
Figure 7-33. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486342Z09-A) ...... 7-27
Figure 7-34. VHF (146-174 MHz) Microprocessor  Circuitry Schematic Diagram (8486342Z09-A) ... 7-28
Figure 7-35. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z09-A) ................... 7-29
Figure 7-36. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z09-A) ................... 7-30
Figure 7-37. VHF (146-174 MHz) Board Component Side View...

xTable of Contents
June, 20056880309N62-C
Figure 12-6. UHF (403-440 MHz) Synthesizer Schematic Diagram (8486635Z03-O) ....................... 12-8
Figure 12-7. UHF (403-440 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486635Z03-O).............................................................................................. 12-9
Figure 12-8. UHF (403-440 MHz) Transmitter and Power Control Schematic 
Diagram (8486635Z03-O)...

Table of Contentsxi
6880309N62-CJune, 2005
List of Tables
Table 1-1. Recommended Test Equipment ....................................................................................... 1-1
Table 1-2. Service Aids ..................................................................................................................... 1-2
Table 1-3. Recommended Service Tools .......................................................................................... 1-2
Table 2-1. Voltage Regulators...

xiiTable of Contents
June, 20056880309N62-C 

Chapter 1 Test Equipment, Service Aids, and 
Service Tools
1.1 Test Equipment
Table 1-1 lists test equipment required to service the CP150/CP200 Radios.
Table 1-1.  Recommended Test Equipment 
Motorola Part No. Description Characteristics Application
R2600 seriesSystem analyzerThis item will substitute for 
items with an asterisk (*)Frequency/deviation meter and 
signal generator for wide-range 
troubleshooting and alignment
*R1074A Fluke 87 digital multi-
meterTrue RMS metering, 
200 kHz frequency...

June, 20056880309N62-C
1-2Test Equipment, Service Aids, and Service Tools: Service Aids
1.2 Service Aids
Table 1-2 lists service aids recommended for working on the CP150/CP200 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 1-2.  Service Aids 
Motorola Part 
No.Description Application
RLN4460Po r ta ble  Tes t Se tEnables connection to the...

6880309N62-CJune, 2005
Test Equipment, Service Aids, and Service Tools: Service Aids 1-3
0180386A78Illuminated magnifying glass with 
lens attachment
Illumination and magnification of components
0180302E51 Master lens system
0180386A82Anti-static grounding kitUsed during all radio assembly and disassembly pro-
cedures
6684253C72 Straight prober
6680384A98Brush
1010041A86 Solder (RMA type), 63/67, 
0.5mm diameter, 1 lb. spool
0180303E45SMD tool kit (included with 
R1319A)
R1319A ChipMaster (110 V) Surface...

June, 20056880309N62-C
1-4Test Equipment, Service Aids, and Service Tools: Service Aids
Programming/Test Cable
Figure 1-1.  Programming/Test Cable
Figure 1-2.  Wiring of the Connectors
25 POSITION
FEMALE CONNECTOR 25 POSITION
MALE CONNECTOR
36.0”
CABLE
36.0”
CABLE
P1 P2 P3
P2
25 pin Male D Connector
Components molded inside
1
5
24
7
20
8
15
16
9
47
ohm
33K
+
1UF,16V 5% Orange
Blue
White
Spiral
Yellow
P1
2.5mm stereo and
3.5mm
1
2
5
3
4
3.5mm Tip
(Speaker +)
3.5mm
Sleeve
2.5mm Tip
(Microphone)
2.5mm...

Chapter 2 DC Power Distribution
2.1 DC Regulation and Distribution
A block diagram of the DC power distribution throughout the radio is shown in Figure 2-1.
Figure 2-1.  DC Power Distribution Block Diagram
Battery voltage enters at connector J301 and is routed through fuse F301 to become USWB+. 
VR301 protects against ESD, and D301 provides reverse polarity protection. This voltage is routed 
to:
• FET switch Q170 in the TX power control circuit (turned on during transmit)
• TX power amplifier module...

June, 20056880309N62-C
2-2DC Power Distribution: DC Regulation and Distribution
When the radio is turned on, SWB+ is present and is applied to:
• transistor switch Q494 (pins 1 and 6) which turns on Q493
• RX audio power amplifier U490
• voltage divider R420/R421 and port PE0, a microprocessor A/D input which measures battery 
voltage and radio on/off status
The output of FET switch Q493 is applied to the control pins of regulators U310, U320 and U330, 
turning them on. The following regulators are...