SOYO SY-7ISA Quick Start Manual page 10

SY-7ISA Quick Start Guide
CNR MR Card-CODEC OPTION (JP8)
Step 6.
CNR MR Card-CODEC
OPTION
JP8 Setting
Set JP9 for FWH Boot Block Write-Protect
Step 7.
Setting this jumper to open will prevent the boot block area of the FWH (FirmWare Hub) chip
from being written data into such that it is write-protected from unwanted or abnormal write
activity.
Note: In some rare cases, the boot block area will need to be flashed to complete the BIOS
upgrade procedure. Setting JP9 to open will cause incomplete BIOS update in that case.
The FWH Boot Block
Write-Protect
JP9 Setting
SPEAKER OPTION (JP22)
Step 8.
Through this jumper the case speaker output can be redirected to the external (amplified)
speakers (if connected) through the on-board Audio-Codec.
SPEAKER OPTION
JP22 Setting
Primary
open JP8
1 2
Locked
open JP9
1 2
Lineout SPK
Short pin 1-2
1 2 3
10
Secondary
short JP8
1 2
Unlocked
short JP9
1 2
CASE SPK
Short pin 2-3
1 2 3