Sony STR-DN840 Service Manual page 15

HISTORY MODE
The state that the set is used is memorized.
Procedure:
1. While pressing [TUNING MODE] and [DISPLAY] buttons
?/1
simultaneously, press the [
"HISTORY" is displayed.
2. Each time the [Ø M Ø ] [Ø m Ø ] key of remote commander is pressed,
the item is switched in order as follows.
Items
Protector Count C O U
Total Power ON time T x
Main Power On M x
Protector type P R O T
Sound Field S N
Function F
Input Mode I N
Digital Select D I
Stream S T
Channel Confi g C O N F
Headphone H E
Volume V O L
Muting M U T
Front Bass F
Front Treble F
Center Bass C
Center Treble C
Surround Bass S
Surround Treble S
Front Height Bass H
Front Height Treble H
Front Level F
Center Level C
Surround Level S
Surround Back Level B
Front Height Level H
Temperature T E
Total Power On T x
Main Power On M x
Power On Count R E
] button to turn on the power and
Display
N T x x x
x x x x H x x M
x x x x H x x M
x x x x
D F I E L D
U N C T I O N
P M O D E
G S E L E C T
R E A M I N F O
x x x x x
A D P H x x x
: x x
I N G : x x
B x x x
T x x x
B x x x
T x x x
B x x x
T x x x
B x x x
T x x x
x x x / x x x
x x x / x x x
x x x / x x x
x x x / x x x
x x x / x x x
M P :
x x x x H x x M
x x x x H x x M
B O X : x x
USB UPDATE TEST MODE
To update micontroller software through USB.
Procedure:
1. Plug in USB device in power off condition.
2. While pressing [TUNING MODE] and [PURE DIRECT]
buttons simultaneously, 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 [TUNING 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:
(MCU ver. + VIDEO ver. + DSP ver. + OSD ver. +
NETWORK ver. + 5)/10 = Displayed USB Update version
MCU = 1.01, VIDEO = 1.04, DSP = 1.02, OSD = 1.03,
NETWORK = 1.00
;
(1.01 + 1.04 + 1.02 + 1.03 + 1.00 + 5)/10 = 1.010
1.010 = X.XXX
STR-DN840
15