STR-DH810 - Sony Audio Service Manual (repair manual). Page 11

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 [INPUT MODE] and [MUTING] buttons, 

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.

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

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. + 7)/10 =

 

Displayed version

 

MAIN = 1.02, DSP = 1.01, HDMI = 1.00

 

↓

 

(1.02 + 1.01 + 1.00 + 1.03 + 7)/10 = 1.006

 

1.006 = X.XXX

SPDIF  UPDATE  TEST  MODE
Function that checks hardware error for SPDIF update.
This test takes about 15 seconds.
Procedure:
1.  While pressing [INPUT MODE] and [DIMMER] buttons, 

press the [

?/1

] button to turn on the main power.

2.  The message “TESTING” is displayed.
3.  When abnormality is not found, the message disappears.
4.  Communication error between other devices microcontroller 

and DSP, the messages “UART” and “ERROR” are displayed.

 

Communication error between HDMI microcomputer and 
DSP, the messages “HDMI” and “ERROR” are displayed.

 

Communication error between MAIN MICOM and DSP, the 
messages “MCU” and “ERROR” are displayed.

 

Unknown error, the messages “UNKNOWN” and “ERROR” 
are displayed.

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 “SP OUT” appears.
3.  Press [

,] button and then press [M]/[m] buttons on the re-

mote commander to select “SOURCE” or “MIC”.

 

SOURCE: normal mode

 

MIC: mode that output audio from mic input