LG KF750 Service Manual page 61

3. TECHNICAL BRIEF
3.3.5 MIDI (Ring Tone Play)
This section provides a detailed description of the MIDI and WAV-file functions.
In Figure 2-4-6, External MIDI path is the same as Voice Loudspeaker downlink Mode, except source
in Asta (DSP and Audio Mixer).
MIDI : Asta → PCM Decoder → Auxiliary audio amplifier → SPKRP/N Port → AUDIO AMP(TPA6205)
→ Speaker(8Ω)
LGE Internal Use Only
Figure 3-3-6. External MIDI path
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