Sony HT-CT780 Service Manual ▷ View online
HT-CT780
5
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AUS :
AUS :
Australian
model
BR
: Brazilian model
CH
: Chinese model
CND : Canadian model
E3
E3
: African and Iranian models
EA3 : Saudi Arabia, UAE, Kuwait, Iraqi, Kenyan, Tanzanian and
Nigerian
models
LA
: Latin American model (Except for Brazilian)
SP
: Singapore model
TH :
Thai
model
TW :
Taiwan
model
ADVANCE PREPARATION WHEN CONFIRMING OP-
ERATION
All of the units included in the HT-CT780 (SA-CT780/SA-
WCT780/Remote control) are required to confi rming operation of
SA-CT780. Check in advance that you have all of the units.
ERATION
All of the units included in the HT-CT780 (SA-CT780/SA-
WCT780/Remote control) are required to confi rming operation of
SA-CT780. Check in advance that you have all of the units.
NOTE OF REPLACING THE KEY BOARD
When the KEY board is defective, replace the complete mounted
board.
When the KEY board is defective, replace the complete mounted
board.
NOTE OF REPLACING THE IC102, IC104, IC307, IC308,
IC313, IC601 TO IC603, IC605, IC1002, IC1004 AND
IC1501 ON THE MAIN BOARD
IC102, IC104, IC307, IC308, IC313, IC601 to IC603, IC605,
IC1002, IC1004 and IC1501 on the MAIN board cannot replace
with single. When these parts are damaged, replace the complete
mounted board.
IC313, IC601 TO IC603, IC605, IC1002, IC1004 AND
IC1501 ON THE MAIN BOARD
IC102, IC104, IC307, IC308, IC313, IC601 to IC603, IC605,
IC1002, IC1004 and IC1501 on the MAIN board cannot replace
with single. When these parts are damaged, replace the complete
mounted board.
NOTE OF REPLACING THE IC503 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD
When IC503 on the MAIN board and the complete MAIN board
are replaced, it is necessary to spread the compound between the
MAIN board and the heat sink.
Spread the compound referring to the fi gure below.
BOARD AND THE COMPLETE MAIN BOARD
When IC503 on the MAIN board and the complete MAIN board
are replaced, it is necessary to spread the compound between the
MAIN board and the heat sink.
Spread the compound referring to the fi gure below.
– MAIN Board (Side A) –
IC503
compound
IF “PRTECT (PROTECT)” APPEARS ON THE FRONT
PANEL DISPLAY OF THE BAR SPEAKER
PANEL DISPLAY OF THE BAR SPEAKER
Press the Ò/Æ (on/standby) button
on the Bar Speaker to turn off the
system. After the display stops
flashing, disconnect the AC power
cord (mains lead) then check that
nothing is blocking the ventilation
holes of the Bar Speaker.
system. After the display stops
flashing, disconnect the AC power
cord (mains lead) then check that
nothing is blocking the ventilation
holes of the Bar Speaker.
NOTES ON UPDATE PORT
UPDATE port
This is update dedicated port of this unit.
Use this port only when updating this unit.
This is update dedicated port of this unit.
Use this port only when updating this unit.
– Rear view –
NOTES ON THE WIRELESS CONNECTION (LINK) AFTER
REPAIRS ARE COMPLETE
When the parts below is replaced, the wireless connection (LINK)
of the Bar speaker and Subwoofer will be disconnected.
Before returning repaired products to the customer, follow the pro-
cedure below to LINK the Bar speaker and Subwoofer.
Also, if only the Bar speaker or Subwoofer is brought in for repair
and the parts below are replaced, be sure to inform the customer
when returning the repaired products that the customer must LINK
the Bar speaker and Subwoofer.
(Indicate that the LINK procedure is described in the operating
instructions)
REPAIRS ARE COMPLETE
When the parts below is replaced, the wireless connection (LINK)
of the Bar speaker and Subwoofer will be disconnected.
Before returning repaired products to the customer, follow the pro-
cedure below to LINK the Bar speaker and Subwoofer.
Also, if only the Bar speaker or Subwoofer is brought in for repair
and the parts below are replaced, be sure to inform the customer
when returning the repaired products that the customer must LINK
the Bar speaker and Subwoofer.
(Indicate that the LINK procedure is described in the operating
instructions)
Parts in which the LINK will be disconnected due to re-
placement:
• Complete MAIN board
• RF modulator (SWA12-4V TX) (Ref. No. RF1)
placement:
• Complete MAIN board
• RF modulator (SWA12-4V TX) (Ref. No. RF1)
Linking the system (Link to the Subwoofer)
Set up the wireless subwoofer
connection again.
connection again.
1
Press MENU.
2
Select [WS] with j (select), then
press ENTER.
press ENTER.
3
Select [LINK] with j (select), then
press ENTER.
press ENTER.
4
When [START] appears on the
display, press ENTER.
[SEARCH] appears, and the Bar
Speaker searches for a device that
can be used with Link. Proceed to
the next step within 1 minute.
To quit the Link function while
searching for a device, press BACK.
display, press ENTER.
[SEARCH] appears, and the Bar
Speaker searches for a device that
can be used with Link. Proceed to
the next step within 1 minute.
To quit the Link function while
searching for a device, press BACK.
5
Press LINK on the subwoofer.
The on/standby indicator on the
subwoofer lights up in green. [OK]
appears on the display of the Bar
Speaker.
If [FAILED] appears, check to ensure
the subwoofer is turned on and
perform the process again from
step 1.
The on/standby indicator on the
subwoofer lights up in green. [OK]
appears on the display of the Bar
Speaker.
If [FAILED] appears, check to ensure
the subwoofer is turned on and
perform the process again from
step 1.
6
Press MENU.
The menu turns off.
The menu turns off.
Ver. 1.2
HT-CT780
6
BOND FIXATION OF ELECTRIC PARTS
When the following parts are replaced, fi x the parts by using the bond (SC608Z2) (Refer to the fi gure below).
When the following parts are replaced, fi x the parts by using the bond (SC608Z2) (Refer to the fi gure below).
Target parts:
< POWER board >
C902, C903, C905, C914 or C915, C941, C967, C970, C977, C978, C980, C988, D901, F931, LF901, R934, TH901, VDR901
(C978, C980: Except US, Canadian and Taiwan models only)
< POWER board >
C902, C903, C905, C914 or C915, C941, C967, C970, C977, C978, C980, C988, D901, F931, LF901, R934, TH901, VDR901
(C978, C980: Except US, Canadian and Taiwan models only)
– POWER Board (Component Side) –
(US, Canadian and Taiwan models)
(US, Canadian and Taiwan models)
TH901
C988
C914
D901
A932
C941
R934
C967
C970
F931
C903
C902
C905
VDR901
LF901
– POWER Board (Component Side) –
(Except US, Canadian and Taiwan models)
(Except US, Canadian and Taiwan models)
TH901
C988
C915
D901
A932
C941
R934
C978
C980
C967
C977
C970
F931
C903
C902
C905
VDR901
LF901
C967
C977
C967
C977
C977
– Side view –
– Side view –
Ver. 1.1
HT-CT780
7
SECTION 2
DISASSEMBLY
•
This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
SET
2-14. BOTTOM CHASSIS BLOCK
(Page
(Page
20)
2-15. SERVICE POSITION
(Page
(Page
21)
2-10. KEY BOARD, KEY
(Page
(Page
16)
2-12. POWER CORD (AC1)
(Page
(Page
18)
2-13. BLUETOOTH MODULE (BT1)
(Page
(Page
19)
2-11. MAIN BOARD
(Page
(Page
17)
2-2. TOP PANEL BLOCK
(Page
(Page
8)
2-3. HOW TO INSTALL THE CONNECTION
CABLE WITH SPEAKER (L-CH, R-CH)
(SPC1,
SPC2)
(Page
9)
2-4. SPEAKER (60 mm) (L-CH, R-CH) (SP1, SP2),
SPEAKER (19 mm) (L-CH, R-CH) (SP3, SP4)
(Page
10)
2-5. NFC MODULE (NFC1)
(Page
(Page
11)
2-7. POWER
BOARD
(Page
13)
2-6. FL
BOARD
(Page
12)
2-9. CONNECTION CABLE WITH SPEAKER
(L-CH, R-CH) (SPC1, SPC2)
(Page
15)
2-8. RF MODULATOR (RF1)
(Page
(Page
14)
HT-CT780
8
Note: Follow the disassembly procedure in the numerical order given.
2-2. TOP PANEL BLOCK
• For the speaker cable setting, see page 9.
7
terminal [gray]
(wide
side)
6
terminal [black]
(wide
side)
6
terminal [gray]
(narrow
side)
6
terminal [black]
(narrow
side)
6
terminal [blue]
(wide
side)
7
terminal [black]
(narrow
side)
4
cushion (CZ)
5
cushion top
5
cushion top
4
cushion (CZ)
5
cushion top
5
cushion top
6
terminal [black]
(narrow
side)
6
terminal [blue]
(wide
side)
6
terminal
[black]
(wide
(wide
side)
6
terminal [red]
(narrow
side)
7
terminal [red]
(wide
side)
7
terminal [black]
(narrow
side)
4
cushion (CZ)
4
cushion
(CZ)
2 Remove the top panel
block in the direction
of the arrow.
1 eight screws
(BVTP3
u 10)
1 nine screws
(BVTP3
u 10)
1 eight screws
(BVTP3
u 10)
– Bottom view –
– Rear view –
3 flexible flat cable
(18 core) (FFC3)
(CN104)
8 top panel block
colored line
Insert straight into the interior.
flexible flat
cable
cable
connector
OK
colored line
Insert at a slant.
flexible flat
cable
cable
connector
NG
How to install the flexible flat cable
When installing the flexible flat cable, ensure that
the colored line is parallel to the connector after insertion.
When installing the flexible flat cable, ensure that
the colored line is parallel to the connector after insertion.
)OH[LEOHIODWFDEOH))&VHWWLQJ
flexible flat cable
(18 core) (FFC3)
(18 core) (FFC3)
connector
(CN104)
(CN104)
Terminal face is
below side.
below side.
front
side
Note 2: Flexible flat cable (18 core) (FFC3) have
been changed to without the cushion from
the midway of production.
Note 1: Please spread a sheet under a
unit not to injure top panel.
Ver. 1.2
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