Sony HT-CT380 / HT-CT381 / SA-CT380 / SA-CT381 Service Manual ▷ View online
HT-CT380/CT381
25
2-14. User Update Mode
(It is displayed “UPDATE” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
(It is displayed “UPDATE” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
?/1
] button if having entered this mode.
2-15. SW Distance Test Mode
(It is displayed “SW.DIST” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
(It is displayed “SW.DIST” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
?/1
] button if having entered this mode.
2-16. HDCP Key Read Mode
(It is displayed “HDCP” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
(It is displayed “HDCP” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
?/1
] button if having entered this mode.
2-17. NFC Test Mode
(It is displayed “NFC.TST” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
(It is displayed “NFC.TST” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
?/1
] button if having entered this mode.
2-18. Auto Standby Test Mode
(It is displayed “T. STBY” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
(It is displayed “T. STBY” on the fl uorescent indicator tube)
Not used for the servicing.
Press the [
?/1
] button if having entered this mode.
2-19. Wireless Sound Test Mode
It can display the
It can display the
-com version of Subwoofer (SA-WCT380/
WCT381).
Note : More than one item may
be displayed on the fl uorescent indica-
tor tube
, but it is not used for the servicing other than “VER.CHE”.
Preparation:
• Prepare the remote commander (RMT-AH101U) attached to
• Prepare the remote commander (RMT-AH101U) attached to
this unit.
• Connect the Bar Speaker (SA-CT380/CT381) and the Sub-
woofer (SA-WCT380/WCT381) by wireless.
Procedure:
1. Enter the test mode menu.
1. Enter the test mode menu.
(Refer to “Setting method of the test mode menu” on page 22)
2. Press the [VOLUME +]/[VOLUME –] buttons to select the
“WS TST”, press the [INPUT] button.
3. The message “FACTRY” is displayed on the fl uorescent indi-
cator tube and enter the wireless sound test mode.
4. Press
the
[
V
]/[
v
] buttons on the remote commander, select the
“VER.CHE”, and press the [ENTER] button on the remote
commander.
commander.
5. The
-com version of Subwoofer (SA-WCT380/WCT381) is
displayed on the fl uorescent indicator tube.
(Displayed values in the above fi gure are example)
6. When [
V
]/[
v
] buttons on the remote commander is pressed
while the
-com version of Subwoofer (SA-WCT380/
WCT381) is displayed on the fl uorescent indicator tube, year,
month and day of the creation is displayed on the fl uorescent
indicator tube.
month and day of the creation is displayed on the fl uorescent
indicator tube.
(Displayed values in the above fi gure are example)
When
[
V
]/[
v
] buttons on the remote commander is pressed
again, the display returns to the
-com version of Subwoofer
(SA-WCT380/WCT381) display.
Releasing method:
Press the [
Press the [
?/1
] button to release the test mode menu.
2-20. Wireless Sound Cold Reset
It can initialize various backup information of Subwoofer (SA-
WCT380/WCT381).
It can initialize various backup information of Subwoofer (SA-
WCT380/WCT381).
Preparation:
Connect the Bar Speaker (SA-CT380/CT381) and the Subwoofer
(SA-WCT380/WCT381) by wireless.
Connect the Bar Speaker (SA-CT380/CT381) and the Subwoofer
(SA-WCT380/WCT381) by wireless.
Procedure:
1. Enter the test mode menu.
1. Enter the test mode menu.
(Refer to “Setting method of the test mode menu” on page 22)
2. Press the [VOLUME +]/[VOLUME –] buttons to select the
“WS RST”, press the [INPUT] button.
3. The on/standby indicator on the Subwoofer (SA-WCT380/WCT381)
turns red and fl ashes, then turns on yellow.
on/standby indicator
Red (flash)
Red (flash)
t
Yellow (light up)
4. Pull out the power cord on the Subwoofer (SA-WCT380/WCT381)
from an outlet and insert the power cord again.
HT-CT380/CT381
26
2-21. Cold
Reset
It can initialize various backup information.
Procedure:
1. Enter the test mode menu.
1. Enter the test mode menu.
(Refer to “Setting method of the test mode menu” on page 22)
2. Press the [VOLUME +]/[VOLUME –] buttons to select the
“RESET”, press the [INPUT] button.
3. The message “RESET” is displayed on the fl uorescent indica-
tor tube, then turn the power off.
HT-CT380/CT381
27
SECTION 4
TROUBLESHOOTING
1. “PRTECT” is displayed on the fl uorescent indicator tube after turning the power on
“PRTECT” is displayed on the
fluorescent indicator tube after
turning the power on.
fluorescent indicator tube after
turning the power on.
Yes
“PRTECT” is not displayed on the
fluorescent indicator tube, when
removing the speaker (SP1, SP2)
and turning the power on.
fluorescent indicator tube, when
removing the speaker (SP1, SP2)
and turning the power on.
No
Replace the IC3001 on the MAIN board.
IC3001 on the MAIN board is
burned out.
burned out.
Yes
Yes
Check and replace the speaker (SP1,
SP2) and connection cable (SPC1, SPC2).
SP2) and connection cable (SPC1, SPC2).
The voltage of the following is 3.3 V.
MAIN board: IC1002 pin 18
MAIN board: IC1002 pin 18
The voltage of the following is 3.3 V.
MAIN board: IC1002 pin 74
MAIN board: IC1002 pin 74
No
The voltage of the following is 12 V.
MAIN board: IC3003 pin 4
MAIN board: IC3003 pin 4
No
Yes
Replace the IC1002 on the MAIN board.
Yes
No
No
No
No
OUT_D line (pin 27, 28), OUT_C line
(pin 32), OUT_B line (pin 35) and OUT_A
line (pin 39, 40) of IC3001 on the MAIN
board do not short-circuits or opens.
(pin 32), OUT_B line (pin 35) and OUT_A
line (pin 39, 40) of IC3001 on the MAIN
board do not short-circuits or opens.
Replace the IC3001 on the MAIN board.
Yes
Replace the IC3001 on the MAIN board.
Yes
Yes
Mounted parts on the OUT_D line (pin 27,
28), OUT_C line (pin 32), OUT_B line (pin
35) and OUT_A line (pin 39, 40) of IC3001
on the MAIN board short-circuits or opens.
28), OUT_C line (pin 32), OUT_B line (pin
35) and OUT_A line (pin 39, 40) of IC3001
on the MAIN board short-circuits or opens.
The PWM signal is inputted INPUT_D
line (pin 15), INPUT_C line (pin 14),
INPUT_B line (pin 6) and INPUT_A line
(pin 5) of IC3001 on the MAIN board.
line (pin 15), INPUT_C line (pin 14),
INPUT_B line (pin 6) and INPUT_A line
(pin 5) of IC3001 on the MAIN board.
Repair the short-circuit and opening of
mount parts.
mount parts.
Yes
Check and repair the area
surrounding IC3003 on the MAIN
board.
surrounding IC3003 on the MAIN
board.
Check and repair the area surrounding
IC3002 on the MAIN board.
IC3002 on the MAIN board.
HT-CT380/CT381
28
2. The sound is not outputted
After entering to the tone test mode (Refer
to 2-9. Tone test mode on the SECTION 3
TEST MODE on page 24), test signal is
outputted.
to 2-9. Tone test mode on the SECTION 3
TEST MODE on page 24), test signal is
outputted.
The sound is not outputted.
No
Yes
Check and repair the signal path for
being inputted to the DSP (IC2009) on
the MAIN board.
(DSP (IC2009) and digital power
amplifier (IC3001) on the MAIN board is
OK)
being inputted to the DSP (IC2009) on
the MAIN board.
(DSP (IC2009) and digital power
amplifier (IC3001) on the MAIN board is
OK)
Yes
Check and repair the area surrounding
IC3002 on the MAIN board.
IC3002 on the MAIN board.
No
Check and repair the area surrounding
IC3001 on the MAIN board.
IC3001 on the MAIN board.
No
Yes
Yes
The “H” is inputted to the pin 37 (VALID) of
IC3002 on the MAIN board.
IC3002 on the MAIN board.
The PWM signal is inputted INPUT_D line
(pin 15), INPUT_C line (pin 14), INPUT_B
line (pin 6) and INPUT_A line (pin 5) of
IC3001 on the MAIN board.
(pin 15), INPUT_C line (pin 14), INPUT_B
line (pin 6) and INPUT_A line (pin 5) of
IC3001 on the MAIN board.
Check that cable is properly connected to
the connector (CN3001, CN3002) on the
MAIN board.
the connector (CN3001, CN3002) on the
MAIN board.
3. Power is not turned on
Power is not turned on.
The voltage of the following is 28 V.
POWER board: CN902 pin 3 to 5
The voltage of the following is 12 to
17 V.
POWER board: CN902 pin 9
POWER board: CN902 pin 3 to 5
The voltage of the following is 12 to
17 V.
POWER board: CN902 pin 9
The voltage of the following is 3.3 V.
MAIN board: IC1002 pin 96, 97
MAIN board: IC1002 pin 96, 97
Yes
POWER board is damaged.
Yes
Yes
Vibrator (X1001) on the MAIN board
is oscillated after AC input.
is oscillated after AC input.
Yes
Fuse (F901, F931) on the POWER
board conduct the electricity.
board conduct the electricity.
No
No
No
Replace the IC1002 or vibrator (X1001) on
the MAIN board.
the MAIN board.
The reset signal is inputted to pin
10 of IC1002 on the MAIN board
after AC input.
10 of IC1002 on the MAIN board
after AC input.
Check and repair the area surrounding
IC1003 on the MAIN board.
IC1003 on the MAIN board.
Yes
Yes
No
Replace the IC1002 on the MAIN
board.
board.
No
Replace the fuse (F901, F931) on the
POWER board.
POWER board.
No
Repair the capacitor (C1035), diode
(D1008) or IC1009 on the MAIN board.
(D1008) or IC1009 on the MAIN board.
The voltage of the following is about 15 V.
MAIN board: IC1009 pin 2
The voltage of the following is 4.0 V.
MAIN board: C1035 plus side
The voltage of the following is 3.3 V.
MAIN board: D1008 cathode side
MAIN board: IC1009 pin 2
The voltage of the following is 4.0 V.
MAIN board: C1035 plus side
The voltage of the following is 3.3 V.
MAIN board: D1008 cathode side
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