Read Sony STR-DH740 Service Manual online
STR-DH740
11
HISTORY MODE
The state that the set is used is memorized.
Procedure:
1. While pressing [TUNING MODE] and [DISPLAY] buttons
The state that the set is used is memorized.
Procedure:
1. While pressing [TUNING MODE] and [DISPLAY] buttons
simultaneously, 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.
Items
Display
Protector Count
C O U N T
x x x
Total
Power
ON
time
T x x x x x H x x M
Main
Power
On
M
x x x x x H x x M
Protector
type
P R O T x x x x
Sound Field
S N D
F I
E L D
Function
F U N C T I O N
Input Mode
I N P
M O D E
Digital
Select
D I G S E L E C T
Stream
S T R E A M I
N F O
Channel Confi
g
C O N F x x x x x
Headphone
H E A D P H x x x
Volume
V O L : x x
Muting
M U T I N G : x x
Bass
B
A
S
S
x x x
Treble
T R E B L E x x x
Front
Level
F x x x / x x x
Center
Level
C x x x / x x x
Surround
Level
S x x x / x x x
Surround
Back
Level
B x x x / x x x
Front
Height
Level
H x x x / x x x
Temperature
T
E
M
P
:
Total
Power
On
T x x x x x H x x M
Main
Power
On
M
x x x x x H x x M
Power On Count
R E 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]
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.
main power.
3. The message “UPDATING” appears.
4. If the updating progress succeeds, the message “COMPLETE”
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,
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. + 6)/10 =
Displayed USB Update version
MCU = 1.01, VIDEO = 1.04, DSP = 1.02, OSD = 1.03
↓
(1.01 + 1.04 + 1.02 + 1.03 + 6)/10 = 1.010
1.010 = X.XXX
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