Ram Through; Pro Logic - Yamaha DSP-AX620 Service Manual

DSP-AX620

3. RAM THROUGH

• The input signal is automatically identified and switched in the priority order of dts
PCM AUDIO Analog (A/D) according to the signal detection.
• C, RL/RR and FL/FR signals are output through the external DRAM.
3.RAM 0dB
(2ch/Multi)
ANALOG
DIGITAL

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
19
RAM 0dB [Remote control code: 7A—10 (TUNER PRESET +)]
Reference
INPUT : DVD ANALOG
SWFR: 50Hz, Others: 1kHz
Condition
Both ch, -26 dBV, volume 0dB
*Multi: Lo/Ro Down Mix
AC3D3 YSS928
CODEC
(A/D)
AK4527
DIR
PRO LOGIC [Remote control code: 7A—8D (PRG 6)]
AC3D3 outputs signals using PRO LOGIC decoding operation with the auto input bal-
ance off.
Reference
INPUT : DVD ANALOG
SWFR: 50Hz, Others: 1kHz
Condition
Both ch, -26 dBV, volume 0dB
DOLBY DIGITAL
SPEAKERS
MAIN L/R CENTER
- ∞ dBV
19.2 dBV
L/R
MAIN
DSP
(Decoder)
SUB DSP
PCM THR
L/Mute
4M DRAM
DOLBY DIGITAL
SPEAKERS
MAIN L/R CENTER
-15.2 dBV 22.2 dBV
REAR L/R SWFR
- ∞ dBV - ∞ dBV
Mute
SDOB0
D/A
AK4382
SDOB1 CODEC
0dB/Mute
(D/A)
SWFR
AK4527
SDOB2 Mute
SDOB3 Mute
RR
REAR L/R SWFR
- ∞ dBV
- 3 dBV (Noise)
L
R
C
FL
FR
RL