Sony STR-DN1000 Service Manual page 13

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KEY CHECK MODE
Button check.
Procedure:
1. While pressing the [MUTING] and the [INPUT MODE] but-
tons, press the [
?/1
2. The message "REST 11" appears.
Every pressing of any button other than the [
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:
CD/DVD
player
DIGITAL board
COAXIAL DVD IN jack (J2000)
Procedure:
Normal case
1. While pressing [DIMMER] button, press the [
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
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is required.
3. Connect CD player to COAXIAL DVD IN jack (J2000 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 COAXIAL DVD IN jack (J2000 on the
DIGITAL board), and play update CD.
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Update is started when DSP detect update signal. From this,
same as normal case.
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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 [
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
2. The message "TESTING" is displayed and LED (MULTI
CHANNEL DECODING indicator) is blinking.
3. When abnormality is not found, the message disappears and
] button to 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
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LED is blinking in fast speed.
Communication error between video processor 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.
.
STR-DN1000
9 4 2 8
] button to turn on the main power.
1 5 0 5 8 2 9 9 4
m
co
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] button to
?/1
2 8 9 9
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