Genuine Motorola Controller Keypad Flex Cable Assembly
The Motorola 8415764H02 is an OEM replacement flex cable assembly that connects the keypad controller to the main circuit board in Motorola radio equipment. This flexible printed circuit (FPC) features multiple conductive traces on a polyimide substrate, allowing for reliable signal transmission while accommodating the folding and flexing required in compact radio designs. The assembly includes reinforced areas at connector terminations for enhanced durability.
Key Features
- Genuine Motorola OEM Part: Factory original component ensuring proper electrical characteristics and reliability
- Flexible Printed Circuit Design: Polyimide substrate with copper traces allows flexing without conductor damage
- Multiple Connection Points: Features several connector terminations and via holes for board mounting
- Reinforced Terminations: Stiffener sections at connection points prevent stress damage during insertion
- Precise Trace Routing: Custom-designed conductor layout optimized for signal integrity
- High-Reliability Construction: Designed to withstand thousands of flex cycles in normal use
- Professional Grade: Built to meet demanding requirements of commercial radio equipment
What's Included
- One (1) Motorola 8415764H02 Controller Keypad Flex Cable Assembly
Application and Installation
This flex cable assembly serves as the critical electrical connection between the keypad controller circuitry and the main radio board. The flexible design allows the cable to fold and route through the tight spaces within the radio housing while maintaining reliable electrical connections. The multiple conductive traces carry signals for keypad matrix scanning, LED indicators, and other control functions.
Flex cables can fail due to repeated flexing beyond design limits, cracking of conductor traces, contamination of connector contacts, physical damage during service, or degradation from environmental exposure. Symptoms of a failing flex cable include intermittent or non-responsive keypad operation, erratic display behavior, missing LED indicators, or complete loss of user interface functions. Because the flex cable carries multiple critical signals, even a single broken trace can result in significant operational problems.
Replacement requires professional installation by qualified radio technicians. The radio must be completely disassembled to access the flex cable routing. Both connector ends must be carefully disconnected from their mating connectors on the circuit boards. The cable routing path must be documented before removal to ensure correct installation of the replacement.
The new flex cable must be routed exactly as the original, avoiding sharp bends that exceed the minimum bend radius specification. Excessive bending can crack the internal conductors even if no visible damage occurs. The cable should not be twisted or kinked during installation. Connector ends must be fully inserted into their mating connectors with proper alignment to ensure reliable contact with all pins.
After installation, all functions controlled by the flex cable should be thoroughly tested before final reassembly, including all keypad buttons, display segments, and indicator lights. Any non-functional elements may indicate improper cable seating or a defective replacement part.
This component is essential for radio service centers performing repairs on Motorola equipment. Due to the specialized nature of flex cable installation and the risk of damage during handling, this repair should only be performed by experienced technicians with proper ESD protection and precision tools.
Manufacturer Part Number: 8415764H02
Part Type: Flexible Printed Circuit Cable Assembly
Material: Polyimide Substrate with Copper Traces
Application: Controller-to-Keypad Interconnection
