Service manual
Table Of Contents
- TO SERVICE PERSONNEL
- FRONT/REAR PANELS
- SPECIFICATIONS
- AV-S70 DISASSEMBLY PROCEDURES
- SW-AVS70 DISASSEMBLY PROCEDURES
- TEST PROGRAM MODE
- DSP DIAG MODE
- AV-S70 IC DATA
- AV-S70 BLOCK DIAGRAM
- SW-AVS70 BLOCK DIAGRAM
- AV-S70 PRINTED CIRCUIT BOARD
- SW-AVS70 PRINTED CIRCUIT BOARD
- AV-S70 SCHEMATIC DIAGRAM
- SW-AVS70 SCHEMATIC DIAGRAM
- PARTS LIST
- REMOTE CONTROL TRANSMITTER
- Parts List for Carbon Resistors
AV-S70/NX-SW70
AV-S70/NX-SW70
12
The input L/R signal is output through the specified channels according to the sub-menu.
There are 7 sub-menu items.
The signal output from the DSP section is normally in the EFFECT OFF state in the menus from 1 to
3. In the menus after that, the same signal as in the menu of 2. DSP THROUGH: YSS908 is output.
The analog switch settings in each sub-menu are as shown in the following table.
Sub-menu
1 MAIN : SMALL 0dB
2 MAIN : LARGE 0dB
3 LFE/BASS : MAIN CENTER : NONE
4 LFE/BASS : MAIN
5 LFE/BASS : SUBWOOFER
6 CENTER : NONE
7 CENTER : SMALL REAR : SMALL
CENTER
LARGE
LARGE
NONE
LARGE
LARGE
NONE
SMALL
REAR
LARGE
LARGE
LARGE
LARGE
LARGE
LARGE
SMALL
MAIN
SMALL
LARGE
LARGE
LARGE
LARGE
LARGE
LARGE
Output
5. Speakers Set (for reference only)
This menu is for checking during the production process and not for servicing.
LARGE: Signals are output in all bandwidths.
SMALL: Only signals lower than 90Hz are mixed in the channel specified by LFE/BASS.
NONE: The center contents are distributed to the MAIN L/R channels after -3dB.
SWFR: SUBWOOFER
Output: The signal before MASTER VOLUME is indicated.
* In Sub-menu 1, the lower range content of the MAIN L/R is output at SWFR as well.
* In Sub-menu 7, the lower range content of LFE, CENTER and REAR is output at SWFR as well.
Sub-menu Main application
MAIN : SMALL 0dB
Confirmation of high/low pass filter characteristics and gain when BASS REDIRECTION is used.
MAIN : LARGE 0dB Reference for Sub-menu 1 and 2
LFE/BASS : MAIN CENTER : NONE Confirmation of effect of the mix circuit to the main channel.
LFE/BASS : MAIN Confirmation of gain of BASS MIX.
LFE/BASS : SWFR Confirmation of the maximum output of LFE.
CENTER : NONE Confirmation of gain of CENTER MIX.
CENTER : SMALL REAR : SMALL
Confirmation of high/low pass filter characteristics and gain when BASS REDIRECTION is used.
MAIN LEVEL
0dB
0dB
0dB
0dB
0dB
0dB
0dB
LFE/BASS
SWFR
SWFR
MAIN
MAIN
SWFR
SWFR
SWFR
MAIN L
L
L
L
LFE+FL
X
C+FL
FL
MAIN R
R
R
R
LFE+FR
X
C+FR
FR
CENTER
X
X
X
X
X
X
C
REAR L
X
X
X
X
X
X
RL
REAR R
X
X
X
X
X
X
RR
SUBWOOFER
L+R
X
X
X
LFE
X
C+RL+RR+LFE