Yamaha RX-V420 Service Manual page 14

RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS
[2ch source]
ANALOG CODEC
(A/D)
AK4527
DIGITAL
[Multi ch source]
ANALOG CODEC
(A/D)
AK4527
DIGITAL
13
M, C, R, SW CH [Remote control code: 7A-89 (PRG 2)]
• The input signal is automatically identified and switched in the priority order of
dts ➔ DOLBY DIGITAL ➔ PCM AUDIO ➔ Analog (A/D) according to the signal
detection.
• L/R, C/SWF, RL/RR signals are output through DSP (see the signal path in the
figure below) without using the external DRAM. (Head margin included)
Head margin:
L/R: 0dBFS, Center: 0dBFS, RL/RR: -12dBFS, SWFR: Add L/R signal at -
20dBFS.
Reference data
INPUT: DVD ANALOG
SWFR: 50Hz, Others: 1kHz
Both ch, -20 dBV, volume -10 dB 22.5 dBV 12.5 dBV 10.0 dBV -6.5 dBV
AC3D3 YSS928
Main DSP
(Decoder)
INTERNAL
DIR
AC3D3 outputs signals using DOLBY DIGITAL/dts decode operation.
AC3D3 YSS928
Main DSP
(Decoder)
INTERNAL
DIR
SDOxx represents a terminal name of AC3D3.
The shaded square (
operate.
Condition MAIN L/R CENTER
Sub DSP
L/R L/R
SDOB2
L/R
SDOB1
L/R SDOB3
4M DRAM
Sub DSP
L/R L/R
SDOB2
C/LFE C/LFE SDOB1
LS/RS
LS/RS SDOB3
4M DRAM
) means that the element indicated in it does not
RL/RR SWFR
CODEC
0dB L
(D/A)
R
AK4527
0dB/-20dB
C
SWFR
-12dB
RL
RR
CODEC
L
0dB
(D/A)
R
AK4527
0dB/-20dB
C
SWFR
-12dB
RL
RR