Motorola Main Interconnect Flex Cable for PCB to Speaker/Microphone Connection
This is a Motorola universal flexible printed circuit board that serves as the main electrical interconnect between the radio's main PCB and the speaker/microphone assembly. The orange polyimide flex cable features a complex, irregularly-shaped design with multiple sections optimized for routing through the radio chassis. Visible markings include "8415169H02 ?EV ??" along with a QR code and barcode for identification. One end features a large array of gold-plated contact pads (approximately 14 pads visible) for connection to the main board, while the opposite end has a smaller contact pad configuration. The flex cable includes multiple conductor traces, strategically placed cutouts for component clearance, and what appears to be a small surface-mount component (possibly a ferrite bead or filter) mounted directly on the flex circuit with a black coating.
Key Features
- Motorola universal main flex connector for speaker/microphone interface
- Orange polyimide flexible PCB construction
- Part number marking: 8415169H02 (revision markings partially visible)
- QR code and barcode identification for traceability
- Large gold-plated contact pad array on main board connection end
- Integrated surface-mount component for signal conditioning or filtering
- Multiple fine-pitch conductor traces for audio, control, and power signals
- Strategic cutouts and contours for optimal chassis routing
- White protective backing with green marking/text visible on one section
Compatible Models
- Various Motorola two-way radio models using this universal flex connector design (consult service documentation for specific compatibility)
What's Included
- One (1) Main Flex PCB Connector Assembly
Application & Installation
This main flex connector is a critical component that carries audio signals, control data, and possibly power between the radio's main circuit board and the speaker/microphone assembly. As a universal design, it may be used across multiple Motorola radio models, making it a versatile service part. Replacement is necessary when audio problems occur such as no speaker output, distorted audio, microphone failure, intermittent audio operation, or complete loss of transmit/receive audio capability. Common failure modes include fractured traces from repeated flexing, damage to the contact pads from improper insertion or removal, contamination affecting electrical contact, or failure of the integrated surface-mount component. Installation requires professional expertise due to the complexity of the flex circuit design and the precision needed for proper connector mating. The technician must completely disassemble the radio, carefully disconnect the failed flex cable from both the main board and speaker/mic assembly ensuring no damage to the mating connectors, route the new flex cable along the exact original path avoiding sharp bends or kinks that could damage the internal traces, align and insert the contact pads into their respective connectors with proper orientation and full seating, and verify all audio functions operate correctly before reassembly. The integrated component on the flex circuit must not be subjected to excessive mechanical stress during installation. Due to the irregular shape and multiple bends in this flex design, special care must be taken to follow the original routing path and maintain proper clearances from other components and chassis edges. This repair should only be performed by experienced radio technicians familiar with flexible circuit handling and Motorola radio construction.
Manufacturer Part Number: 8415169H02
Type: Universal Main Flex Connector
Function: PCB to Speaker/Microphone Interface
