STR-DN1010 - Sony Audio Service Manual (repair manual). Page 13

KEY  CHECK  MODE
Button check.
Procedure:
1.  While pressing the [INPUT MODE] and the [MUTING] but-

tons, press the [

?/1

] button to turn on the main power.

2.  The message “REST 11” appears.
 

Every pressing of any button other than the [

?/1

] counts down 

the buttons. The buttons which are already counted once are 
not counted again. When all buttons are pressed “REST 00” 
displayed.

SPDIF  UPDATE  MODE
User plays the CD that contains u-com/DSP data with CD/DVD 
player.
Update u-com/DSP etc. fi rmware from SPDIF input.
Connection:

Procedure:
Normal case
1.  While pressing [DIMMER] button, press the [

?/1

] button to 

turn on the main power.

2.  The messages “UPDATE” and “PLAY DISC” are displayed 

alternately every one second.

 

After this step, all user operation is prohibited except power 
off. To cancel this mode, power off or AC power cord pull out 
is required.

3.  Connect CD player to TV OPTICAL IN jack (IC2004 on the 

DIGITAL board), and play update CD.

 

Update is started when DSP detect update signal. The message 
“UPDATING” is displayed blinks every one second.

 

From this step, all user operation is prohibited. Power off is 
also prohibited.

4.  While main u-com is being updated, fl uorescent indicator tube 

is blacked out.

5.  When update data error is detected or disc is not matched with 

target model, error messages “DISC ERROR” and “PLAY 
DISC” are displayed to restart playing valid CD.

 When 

fl ash writing error is happened, error messages “UP-

DATE ERR” and “PLAY DISC” are displayed to restart play-
ing CD.

6.  When all update is fi nished, set is reboot automatically. After 

reboot, complete message “COMPLETE” is displayed (dis-
played continuously until any user operation).

Procedure:
After update is abnormal exit, and set is power on again
1.  Enter update mode automatically after power on.
2.  The messages “UPDATE” and “PLAY DISC” are displayed 

alternately every one second.

 

From this step, all user operation is prohibited. Power off is 
also prohibited.

 

If main u-com was failed to update, nothing is displayed.

3.  Connect CD player to TV OPTICAL IN jack (IC2004 on the 

DIGITAL board), and play update CD.

 

Update is started when DSP detect update signal. From this, 
same as normal case.

VERSION  CHECK
Function that displays the version number to check whether SPDIF 
update is necessary or not.
Procedure:
1.  While pressing  [MUTING] button, press the [

?/1

] button to 

turn on the main power.

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

lated 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

SPDIF  UPDATE  CHECK
Function that checks hardware error for SPDIF update.
This test takes about 15 seconds.
Procedure:
1.  While pressing [DIMMER] and [2CH/A.DIRECT] buttons, 

press the [

?/1

] button to turn on the main power.

2.  The message “TESTING” is displayed and LED (MULTI 

CHANNEL DECODING indicator) is blinking.

3.  When abnormality is not found, the message disappears and 

LED is light up.

4.  Communication error between main microcomputer and DSP, 

the messages “UART” and “ERROR” are displayed and LED 
is blinking in fast speed.

  Communication error between HDMI microcomputer and 

DSP, the messages “HDMI” and “ERROR” are displayed and 
LED is blinking in fast speed.

 

Communication error between Faraudja and DSP, the messages 
“VIDEO” and “ERROR” are displayed and LED is blinking in 
fast speed.

 

Unknown error, the messages “UNKNOWN” and “ERROR” 
are displayed and LED is blinking in fast speed.

5.  To release from this mode, AC power cord pull out.

Note: SPDIF UPDATE MODE, VERSION CHECK and SPDIF UPDATE 

CHECK are supported with DSP version 1.02 or later.

DCAC  TEST  MODE
Procedure:
1.  While pressing the [INPUT MODE] and the [MOVIE] but-

tons, press the [

?/1

] button to turn on the main power.

2.  The message “SOURCE” or “MIC” appears.
 

SOURCE: normal mode
MIC: mode that output audio from mic input