Motorola HT1250-LS+ Service Manual page 5

4.8 Removing and Reinstalling the Circuit Board......................................................... 4-6
4.9 Power Up Self-Test Error Codes............................................................................ 4-6
4.10 200 MHz Troubleshooting Charts .......................................................................... 4-8
4.11 700 MHz Troubleshooting Charts ........................................................................ 4-14
4.12 PassPort Trunking Troubleshooting Chart ........................................................... 4-20
4.13 Keypad Troubleshooting Chart ............................................................................ 4-21
Chapter 5 Schematic Diagrams, Overlays, and Parts Lists
5.1 Introduction ............................................................................................................ 5-1
5.1.1 Notes For All Schematics and Circuit Boards ..................................................... 5-1
5.2 Flex Layout............................................................................................................. 5-2
5.2.1 Keypad/PassPort Controller Interconnect Flex Schematic.................................. 5-3
5.2.2 Keypad/PassPortController Interconnect Flex Parts List .................................... 5-3
5.2.3 Universal Flex Connector ................................................................................... 5-4
5.2.4 Universal Connector Flex Schematic .................................................................. 5-5
5.2.5 Universal Flex Connector Parts List .................................................................... 5-5
Figure 5-5.
Figure 5-6.
Figure 5-7.
Figure 5-8.
Figure 5-9.
Figure 5-10.
Figure 5-11.
Figure 5-12.
Figure 5-13.
Figure 5-14.
Figure 5-15.
Figure 5-16.
Figure 5-17.
Figure 5-18.
200 MHz Radio Parts List ................................................................................................ 5-21
Figure 5-19.
Figure 5-20.
Figure 5-21.
Figure 5-22.
Figure 5-23.
Figure 5-24.
Figure 5-25.
Figure 5-26.
Figure 5-27.
Figure 5-28.
Figure 5-29.
200 MHz Main Board Bottom Side PCB 8486236Z06............................ 5-7
200 MHz Main Board Top Side PCB 8486236Z06 ................................. 5-8
200 MHz Receiver Front End Schematic Diagram ................................. 5-9
200 MHz Receiver I-F Schematic Diagram .......................................... 5-10
200 MHz Frequency Synthesizer Schematic Diagram ......................... 5-11
200 MHz Voltage Controlled Oscillator Schematic Diagram ................ 5-12
200 MHz Transmitter and Power Control Schematic Diagram ............. 5-13
200 MHz Controller Block Diagram ...................................................... 5-14
200 MHz Microprocessor Schematic Diagram ..................................... 5-15
200 MHz Memory Schematic Diagram ................................................. 5-16
200 MHz ASFIC Schematic Diagram ................................................... 5-17
200 MHz Audio Power Amplifier Schematic Diagram........................... 5-18
200 MHz Control and Indicators Schematic Diagram ........................... 5-19
200 MHz Keypad/PassPort Board Interface Schematic Diagram......... 5-20
700 MHz Main Board Bottom Side PCB 8486220Z07.......................... 5-25
700 MHz Main Board Top Side PCB 8486220Z07 .............................. 5-26
700 MHz Receiver Front End Schematic Diagram ............................... 5-27
700 MHz Receiver I-F Schematic Diagram .......................................... 5-28
700 MHz Frequency Synthesizer Schematic Diagram ......................... 5-29
700 MHz Voltage Controlled Oscillator Schematic Diagram ................ 5-30
700 MHz Transmitter and Power Control Schematic Diagram ............. 5-31
700 MHz Controller Block Diagram ...................................................... 5-32
700 MHz Microprocessor Schematic Diagram ..................................... 5-33
700 MHz Memory Schematic Diagram ................................................. 5-34
700 MHz ASFIC Schematic Diagram ................................................... 5-35
iii