Read Sony DVP-NW50 (serv.man2) Service Manual online
34
34
5-6-2. MIC sound
(LISTEN)
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 listen with INTERCOM SPEAKER in INTERCOM
function.
function.
The INTERCOM MIC sound from other ETHERNET DEVICE is input to
The digital sound data of INTERCOM MIC from other EHTERNET DEVICE is
input to SYSTEM CONTROLLER (U1) through PHYSICAL LAYER
TRANSCEIVER (U26).
input to SYSTEM CONTROLLER (U1) through PHYSICAL LAYER
TRANSCEIVER (U26).
Then, the digital MIC sound data is picked up by SYSTEM CONTROLLER and
sent to DAC(U9) through Buffer (U21).
sent to DAC(U9) through Buffer (U21).
The digital MIC sound is converted to analog signal in DAC( U9) and sent to
INTERCOM SPEAKER through SW (U31).
INTERCOM SPEAKER through SW (U31).
By LEVEL DETECT (U45), SW (U31) turns on and go through the MIC sound.
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