Pro Logic - Yamaha DSP-AX2 Service Manual

DSP-AX2

4. PRO LOGIC

The input signal is automatically identified and switched in the priority order of dts
PCM AUDIO Analog (A/D) according to the signal detection.
The operation conforms to the ordinary DOLBY Normal sound field.
4. PRO LOGIC
YSS928
Reference (PRE OUT)
INPUT : DVD ANALOG
SWFR: 50Hz, Others: 1kHz
Each ch, -20 dBV, volume 0dB
Both ch, -20 dBV, volume 0dB
Both ch, -20 dBV(reverce phase), volume 0dB
(2-ch source)
• AC3D3 outputs signals using PRO LOGIC decoding operation with the auto input balance off.
ANALOG
CODEC
(A/D)
AK4527
DIGITAL
(DOLBY DIGITAL/dts Normal)
ANALOG
CODEC
(A/D)
AK4527
DIGITAL
17
YSS928 [Remote control code: 7A—0C (CD FF)]
Condition MAIN L/R
-3.5 dBV
– ∞ dBV
– ∞ dBV
AC3D3 YSS928
L/R
MAIN
DSP
(Decoder)
L/R
DOLBY PRO
DIR
LOGIC
DECODER
C/S
AC3D3 YSS928
L/R
MAIN
DSP
(Decoder)
L/R
DD/dts
DIR
DECODER C/LFE
LS/RS
Note: (SDOxx) represents a terminal name of AC3D3.
The shaded square (
DOLBY DIGITAL
CENTER REAR C
– ∞ dBV – ∞ dBV
– ∞ dBV
– 0.5 dBV
– ∞ dBV – ∞ dBV
FILTER
DF1704
L/R
SDOA0
FILTER
SUB DSP
DF1704
C SDOB0 FILTER
DF1704
L/R
SDOB1
SDOB2
S SDOB3
4M DRAM
FILTER
DF1704
L/R
SDOA0
FILTER
SUB DSP
DF1704
C SDOB0 FILTER
DF1704
L/R,
LFE
SDOB1
SDOB2
LS/RS SDOB3
4M DRAM
) means that the element included in it does not operate.
SWFR REAR L/R FRONT L/R
– ∞ dBV – ∞ dBV – ∞ dBV
– ∞ dBV – ∞ dBV – ∞ dBV
– ∞ dBV – ∞ dBV
– 3.5 dBV
L
D/A
PCM1704
D/A
R
PCM1704
D/A
C
PCM1704
CODEC RC
(D/A)
SWFR
AK4527
FL
FR
RL
RR
L
D/A
PCM1704
D/A R
PCM1704
D/A
C
PCM1704
CODEC RC
(D/A)
SWFR
AK4527
FL
FR
RL
RR