STR-DH730, STR-DH830 - Sony Audio Service Manual (repair manual). Page 10

HISTORY MODE
The state that the set is used is memorized.
Procedure:
1.  While pressing the [TONE MODE] and [MUSIC] buttons,
 

press the [

?/1

] button to turn on the power and “HISTORY”

 is 

displayed.

2.  Each time the [ M ]  [ m ] key of remote commander is pressed,

 

the item is switched in order as follows.

Protector count

COUNT XX

Total single power on time

XXXXXHXX 01

Sound fi eld

SND FLD

Input function

FUNCTION

Input mode

INP MODE

Digital select

DIG IN

Stream information

 STREAM

Signal confi guration

CO XXXXX

Headphones

HP   XXX

Volume

VOL  XX

Bass

BASS XXX

Treble

TREB XXX

Level FL/FR

F XXXXXX

Level SL/SR

S XXXXXX

Level CT/SW

CWXXXXXX

Level BL/BR

B XXXXXX

Level LH/RH

H XXXXXX

Total power on time

XXXXXHXX 02

Muting

MUTE XXX

Power on counter
(Rebox test mode)

REBXXXXX

Protector Type

PROTXXXX

Temperature record

TEM XXXX

VACS step setting

VACS XX

USB UPDATE TEST MODE
To update Main MCU, Video MCU, DSP serial fl ash and Hudson 
II software through USB.
Procedure:
1.  Plug in USB device in power off condition.
2.  While pressing the [TONE MODE] and the [DISPLAY] 

buttons, press the [?/1] button to turn on the main power.

3.  The message “UPDATING” appears.
4.  If the updating progress succeeds, the message “COMPLETE” 

appears.

5.  If the updating progress fails, the message “ERROR” appears.

USB UPDATE VERSION MODE
Function that displays the version number to check whether USB 
update is necessary or not.
Procedure:
1.  While pressing [TONE MODE] and [DIMMER] buttons, 

press the [

?/1

] button to turn on the main power.

2.  The message “VER X.XXX” is displayed. “X.XXX” is 

calculated by adding all fi rmware version.

 Example:
 

(MAIN ver. + DSP ver. + HDMI ver. + FARO ver. + 6)/10 =

 Displayed 

version

 

MAIN = 1.02, DSP = 1.01, HDMI = 1.00, FARO = 1.03

 

↓

 

(1.02 + 1.01 + 1.00 + 1.03 + 6)/10 = 1.006

 

1.006 = X.XXX