Read Sony DVP-NW50 (serv.man2) Service Manual online
33
33
5-6-1. MIC sound
(SPEAK)
DISC
PLAYBACK
section
TUNER
LINE IN
MIC
(INTERCOM)
5.1ch
SPEAKER
Digital Audio
Receiver
(U16)
Buffer
(U18)
SYSTEM
CONTROLLER
(U1)
AMP section
(U301, U201, U401,
U402, U403, U504,
UU602)
PHYSICAL LAYER
TRANSCEIVER
(U26)
DAC/ADC
(U9)
SW
(U31)
LEVEL
DETECT
(U45)
Buffer
(U17,U8,U27)
Buffer
(U19)
Buffer
(U6)
ETHERNET
DEVICE
INTERCOM
SPEAKER
Buffer
(U21)
LEVEL
DETECT
(U45)
NOISE
DETECT
(U43)
This is a signal flow to speak with MIC in INTERCOM function.
The analog sound from MIC is sent to ADC (U9) through SW (U31).
When LEVEL DETECT (U31) detects the MIC sound input, SW (U31) turns on
and starts to go through the audio input signal,
and starts to go through the audio input signal,
The MIC input is converted to digital sound data in DAC (U9).
Then, the digital sound data is transferred to SYSTEM CONTROLLER (U1)
through Buffer (U21).
through Buffer (U21).
Then, SYSTEM CONTROLLER encode the sound data to ETEHRNET signal
and out put it through PHYSICAL LAYER TRANSCEIVER (U26).
and out put it through PHYSICAL LAYER TRANSCEIVER (U26).
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