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Main IC's located on the front side of the motherboard include:

Teridian 71M6531F SoC with an MPU core, RTC, FLASH and LCD driver

Texas Instruments LM2904 low power dual operational amplifier

RMFD RF2172 medium-power high efficiency amplifier IC

Texas Instruments CC1110F32 Sub-1GHz System-on-Chip with MCU and 32kB Flash memory

Two pads near the top of the board channel 240V AC electricity from the large copper wires onto the board and into the adjacent blue transformer box that steps it down to about 10V AC. From there, the AC voltage is rectified and conditioned to power the DC components on the board.

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