Yamaha DSP-A5 Service Manual page 13

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No.3 AC-3/DTS THROUGH
The input is digital signal only. AC-3 (DOLBY DIGITAL) or DTS Digital Surround decoding operation is executed,
according to the input source.
1. STATUS(BINARY FORM)
AC-3 (DOLBY DIGITAL) decoded signals are output to each channel via AC3D2av.
The AC-3 (DOLBY DIGITAL) signal status data will be displayed in the FL display using a binary number.
ANALOG IN
DIGITAL IN
: This shows that the device is not operating.
AC-3 Status Info. : bit 7 6 5
(Invalid in DTS)
TE
L 13942296513
No.4 PRO LOGIC
The submenu is switched between PRO LOGIC (AUTO BALANCE OFF) and EFFECT OFF.
1. CENTER LARGE
The input is automatically discriminated by signal detection and switched with priorities Coaxial>Optical>Analog.
DTS Digital Surround is disabled. The input signals are PRO LOGIC decoded and output.
(Remote control code 7A-8A: "3" key [DSP mode])
ANALOG IN
DIGITAL IN
www
.
2. EFFECT OFF
The input is only for analog signal. The L/R signals bypass the digital circuit and are output to the MAIN L/R.
http://www.xiaoyu163.com
bit 7
3 S T : 1 0 0 0 1 0 0 1
CODEC.ADC
AK4526A
DIR5
YSD917
4 3 2 1 0
1 0 0 0 1 0 0 1
4 P R O C N T R : L R G
CODEC.ADC
AK4526A
DIR5
YSD917
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y
i
4 P R O E F C T : O F F
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2 9
8
bit 1
AC3D2av(YSS918)
L/R
DECODER DSP
DOLBY DIGITAL
or
C/LFE
PRO LOGIC
or
DTS
LS/RS
1M SRAM
IEC958 digital data bit
IEC958 commercial-use device bit
IEC958 digital format error
Demodulator muting (without RF signal)
Q Q
1 for audio other than PCM linear audio 3 6 7 1 3 1 5
1 during red DTS lock
1 during DTS decode OK
1 during AC-3 decode OK
AC3D2av(YSS918)
L/R
DECODER DSP
DOLBY DIGITAL
or
C
PRO LOGIC
or
DTS
S
• INPUT : DVD/LD (Analog signal)
• OUTPUT : SPEAKERS
1M SRAM
co
.
9 4 2 8
DAC
MAIN L
AK4324
MAIN R
CODEC.DAC
C/LFE CENTER
SUBWOOFER
LS/RS REAR L
AK4526A
REAR R
0 5 8 2 9 9 4 2 8
DAC
MAIN L
AK4324
MAIN R
CODEC.DAC
CENTER
C
REAR L
S
AK4526A
REAR R
m
(Lch and Rch, or Lch only, 1KHz, –20dBV)
(INPUT : Lch and Rch ) (INPUT : Lch only)
MAIN L : –12.5 dBV MAIN L :
MAIN R : –12.5 dBV MAIN R : –19.0 dBV
CENTER: 27.0 dBV CENTER : –10.0 dBV
REAR L : –9.0 dBV REAR L : –9.0 dBV
REAR R : –9.0 dBV REAR R : –9.0 dBV
DSP-A5
9 9
9 9
24.0 dBV
12