Onkyo TX-SR308 Service Manual page 9

MAIN/DSP Update Procedure-2
[NOTE: See MAIN/DSP Update Procedure-1]
*Combination of "MAIN_FW and OSD_FW" has limitation.
*OSD FW cannot be updated.
Preparation for Update
1. PC Personal Computer which
2. Software Given wav-formatted FW
3. Connection: DIGITAL (OPTICAL/COAXIAL) ourput of PC/CD Player --> DIGITAL (OPTICAL-1/COAXIAL-1) INPUT of TX-SR608 etc.
* PC needs to be able to handle wav files and output digital audio signal.
* For wav-compatible PCs which do not output audio signal at the above specification,
use a commercially-available USB-AUDIO interface unit. e.g. Onkyo-made ND-S1
* PC needs to run Windows XP. Windows Vista and Windows 7 do not work.
* Set wave Volume to Maximum including Volume Control in Control Panel.
For further information, please see Owner's manual of your PC.
* Instead of PC, CD players with DIGITAL output terminal can be used.
Note: CD players need to output digital audio signal .
Some CD players and DVD players are not suitable for update because they process audio signal to output.
Burn a CD-R as music disc.
Connection Example
PC(Personal Computer
USB cable
O RT
SP
AN
TR
iP od
USB-AUDIO interface unit.
e.g. Onkyo-made ND-S1
ANALOG
OUT
L
<NOTE 1>
"Writing" will not be shown even more than about 15 seconds passed after starting playback,
audio signal does not output at Sampling frequency:44.1kHz. Check the connection and settings and try again.
When another try results in failure again, use the other update method.
<NOTE 2>
DURING FW UPGRADE,DO NOT TURN OFF THE UNIT. DO NOT REMOVE ANY CONNECTIONS.
These operation will not allow FW Upgrade any more, andthe whole board or IC will need replacing.
output digital audio signal under Windows XP.
can play back wav files and
Store it in the PC in advance (PC Update) or burn a CD-R with it as a music disc (CD Update).
For a different shape of OPTICAL terminal,
Use a conversion adapter.
DIGITAL
OUT
OPTICAL
DIGITAL
OUT
OPTICAL
DIGITAL
OUT
OPTICAL
REMOTE
CONTROL
DIGITAL
OUT
OPTICAL
CD player
TX-SR308/ 508 HT-R280/ 380/ 538/ 580/ HT-RC230
Control Panel
--> Sounds and Audio Devices
--> Volume tab
--> Advanced
--> Turn all the levels to Max.
Rear Panel
OPTICAL
1
(VCR/DVR)
OPTICAL
1
(VCR/DVR)
Rear Panel