Only for MCM166-12-55-05-77
This is previous generation models.
The serial number is:
Before LM011039227020 (only for-12)
Before LM001039092086 (only for -55-77)
Rated Output Power 2X5W RMS
Speaker Driver 3.5”woofer+0.8” tweeter
Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent.
Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. This to avoid that little particles make scratches on the lens.
The actuator is a very precise mechanical component and may not be damaged in order to guarantee its full function. Clean the lens gently (don’t press too hard) with a soft and clean cotton bud moistened with the special lens cleaner.
Disassembly procedure
SCHEMATIC. Used Amplifier IC: TFA9842
CIRCUIT DIAGRAM - MCU BOARD
SCHEMATIC, Used Amplifier IC: ET2314 or BA5417
Disassembly procedure
Main board circuit diagram.