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Model
SA-WCT770
Pages
38
Size
2.8 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sa-wct770.pdf
Date
PREV: Sony HT-CT770 Service Manual

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29
SA-WCT770
SECTION  5
EXPLODED  VIEWS
  1 
A-2043-824-A  PANEL TOP ASSY (SW) (for SERVICE)
 2 
3-087-053-01 +BVTP2.6 
(3CR)
  3 
4-874-614-02  SCREW (1) (3.5X14), TAPPING
 4 
4-486-634-01 PANEL, 
REAR
 5 
4-538-874-01 DOUBLE 
SIDE 
TAPE
  #1 
7-685-646-79  SCREW +BVTP 3X8 TYPE2 IT-3
  #2 
7-685-646-71  SCREW +BVTP 3X8 TYPE2 IT-3
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
Note:
•  -XX and -X mean standardized parts, so 
they may have some difference from the 
original one.
•  Items marked “*” are not stocked since 
they are seldom required for routine ser-
vice. Some delay should be anticipated 
when ordering these items.
•  The mechanical parts with no reference 
number in the exploded views are not sup-
plied.
•  Color Indication of Appearance Parts Ex-
ample:
  KNOB, BALANCE (WHITE) . . . (RED)
   
 
 
   
 
Parts Color  Cabinet’s Color
• Abbreviation
 AUS : 
Australian 
model
  CH 
: Chinese model
  CND  : Canadian model
  EA 
: Saudi Arabia model
  MX 
: Mexican model
  SP 
: Singapore model
 TW  : 
Taiwan 
model
5-1.  OVERALL  SECTION
A
A
not supplied
(SUB LED board)
not 
supplied
not supplied
not supplied
sub AMP section
subwoofer cabinet section
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
#2
#2
#1
#1
#1
#1
#1
not 
supplied
1
2
2
3
3
4
not supplied
not supplied
3
5
5
5
5
3
Ver. 1.2
The components identifi ed  by  mark  0 
or dotted line with mark 0 are critical for 
safety.
Replace only with part number specifi ed.
Les composants identifi és par une marque 
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
30
SA-WCT770
5-2.  SUB  AMP  SECTION
 51 
3-077-331-71 +BV3 
(3-CR)
 52 
4-237-065-01 CLAMP 
(L35)
  53 
A-1979-523-A  POWER BOARD, COMPLETE (US, CND, TW)
  53 
A-1989-270-A  POWER BOARD, COMPLETE 
(Except US, CND, TW)
  54 
A-1979-519-A  SUB MAIN BOARD, COMPLETE (See Note)
 55 
3-077-331-11 +BV3 
(3-CR)
 56 
4-485-625-01 BUTTON
0 57 
4-966-267-12  BUSHING (FBS001), CORD
  58 
4-974-510-11  SCREW (+BV 3X8 CU)
0 AC1 
1-834-965-22  CORD, POWER (US, CND)
0 AC1 
1-834-966-41  POWER-SUPPLY CORD (AEP, SP)
0 AC1 
1-835-068-21  CORD, POWER (AUS)
0 AC1 
1-837-344-11  CORD, POWER-SUPPLY (MX)
0 AC1 
1-837-345-11  CORD, POWER-SUPPLY (TW)
0 AC1 
1-837-822-21  CORD, POWER-SUPPLY (CH)
0 AC1 
1-839-999-21  POWER-SUPPLY CORD (UK, EA)
0 F900 
1-533-453-12  FUSE, GLASS (DIA. 5) (5 A/125 V) (US, CND)
0 F900 
1-576-230-51  FUSE (T 3.15 AH/ 250 V) (Except US, CND, TW)
0 F900 
1-576-232-51  FUSE (H. B. C.) (T 5 AH/250 V) (TW)
  FFC1 
9-885-194-87  FFC 24P RX-SUB MAIN 77
  RF1 
1-492-348-11  RF MODULATOR (SWA12-4V RX)
  #3 
7-685-648-79  SCREW +BVTP 3X12 TYPE2 IT-3
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
C
D
B
B
D
C
C
not supplied
not supplied
not supplied
51
#3
#3
AC1
57
51
51
51
51
51
not supplied
not supplied
not supplied
55
55
F900
52
51
51
(Except US, CND)
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
51
51
51
51
not supplied
51
58
51
51
51
51
51
58
51
51
51
53
not supplied
not supplied
not supplied
not supplied
not supplied
RF1
FFC1
not 
supplied
not 
supplied
not supplied
not supplied
not supplied
not supplied
not supplied
(SUB KEY board)
not supplied
not supplied
not supplied
not supplied
56
54
51
Note: When the complete SUB MAIN board is replaced, refer to “NOTE 
OF REPLACING THE IC104 ON THE SUB MAIN BOARD 
AND THE COMPLETE SUB MAIN BOARD” on page 4.
Ver. 1.2
31
SA-WCT770
5-3.  SUBWOOFER  CABINET  SECTION
 101 
4-434-111-11  FOOT
 102 
4-452-794-11 PANEL, 
BOTTOM
  103 
4-245-976-01  SCREW (4X16) (TYPE1), +BVTP
 104 
4-452-796-01 SPACER
 CAB1  A-1989-232-A SPEAKER 
(CABINET 
ASSY) 
(Including Speaker Wire) (US, CND)
 CAB1  A-1989-235-A SPEAKER 
(CABINET 
ASSY) 
(Including Speaker Wire) (Except US, CND)
  SP1 
1-858-535-21  LOUDSPEAKER (16 cm)
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
SP1
CAB1
101
102
104
103
101
101
101
103
103
103
103
103
103
103
Ver. 1.1
32
SA-WCT770
SECTION  6
ELECTRICAL  PARTS  LIST
   
A-1979-523-A  POWER BOARD, COMPLETE (US, CND, TW)
   
A-1989-270-A  POWER BOARD, COMPLETE
 (Except US, CND, TW)
  
 
**********************
   
7-685-647-71  SCREW +BVTP 3X10 TYPE2 IT-3
   
 
< CAPACITOR >
0 C900 
1-165-529-11  MYLAR 
0.22uF 
10% 
250V
(US, CND, TW)
0 C901 
1-165-529-11  MYLAR 
0.22uF 
10% 
250V
(Except US, CND, TW)
0 C902 
1-165-528-11  MYLAR 
0.1uF 
10% 
250V
(Except US, CND, TW)
0 C903 
1-112-870-51  CERAMIC 
0.001uF 
20% 
250V
(US, CND, TW)
0 C904 
1-112-869-51  CERAMIC 
470PF 
10% 
250V
(Except US, CND, TW)
0 C905 
1-112-870-51  CERAMIC 
0.001uF 
20% 
250V
(US, CND, TW)
0 C906 
1-112-869-51  CERAMIC 
470PF 
10% 
250V
(Except US, CND, TW)
0 C907 
1-112-866-51  CERAMIC 
100PF 
10% 
250V
(US, CND, TW)
0 C907 
1-112-869-51  CERAMIC 
470PF 
10% 
250V
(Except US, CND, TW)
0 C911 
1-116-393-11  FILM 
0.0033uF  5% 
400V
0 C914 
1-107-932-91  ELECT 
47uF 
20% 
100V
0 C916 
1-162-968-91  CERAMIC CHIP  0.0047uF  10% 
50V
0 C917 
1-107-903-91  ELECT 
2.2uF 
20% 
50V
0 C919 
1-107-902-91  ELECT 
1uF 
20% 
50V
0 C920 
1-116-392-11  FILM 
0.01uF 
5% 
400V
(US, CND, TW)
0 C921 
1-116-393-11  FILM 
0.0033uF  5% 
400V
(Except US, CND, TW)
0 C922 
1-125-893-11  FILM 
680PF 
3% 
1.5KV
(Except US, CND, TW)
0 C923 
1-117-631-11  FILM 
3300PF 
3% 
1.2KV
(US, CND, TW)
0 C924 
1-107-906-91  ELECT 
10uF 
20% 
50V
0 C925 
1-164-315-91  CERAMIC CHIP  470PF 
5% 
50V
0 C927 
1-107-909-91  ELECT 
47uF 
20% 
50V
0 C928 
1-118-342-11  CERAMIC CHIP  2200PF 
10% 
50V
0 C929 
1-100-152-91  CERAMIC CHIP  100PF 
5% 
100V
0 C930 
1-118-345-11  CERAMIC CHIP  0.01uF 
10% 
25V
0 C931 
1-118-345-11  CERAMIC CHIP  0.01uF 
10% 
25V
0 C932 
1-118-361-11  CERAMIC CHIP  0.1uF 
10% 
50V
0 C935 
1-100-922-11  ELECT 
330uF 
20% 
200V
(US, CND, TW)
0 C936 
1-100-923-11  ELECT 
100uF 
20% 
450V
(Except US, CND, TW)
0 C937 
1-165-528-11  MYLAR 
0.1uF 
10% 
250V
(US, CND, TW)
 C940  1-115-350-51 CERAMIC 
0.0047uF  
2KV
 C941  1-112-254-11  ELECT 
1000uF  20%  35V
 C943  1-100-756-91 CERAMIC 
CHIP 0.047uF  10%  50V
 C944  1-118-373-11  CERAMIC 
CHIP 0.01uF  10%  50V
 C946  1-118-361-11  CERAMIC 
CHIP 0.1uF 
10%  50V
 C947  1-118-361-11  CERAMIC 
CHIP 0.1uF 
10%  50V
 C951  1-112-222-11  ELECT 
2200uF  20%  10V
 C952  1-118-345-11  CERAMIC 
CHIP 0.01uF  10%  25V
 C953  1-100-756-91 CERAMIC 
CHIP 0.047uF  10%  50V
 C954  1-118-345-11  CERAMIC 
CHIP 0.01uF  10%  25V
 C960  1-118-347-11  CERAMIC 
CHIP 0.1uF 
10%  25V
   
 
< CONNECTOR >
0 CN900 
1-564-321-11  PIN, CONNECTOR (3.96 mm PITCH) 2P
   
 
< DIODE >
0 D900 
8-719-077-77  DIODE   D3SB60F3
0 D901 
8-719-063-74  DIODE   D1NL20U-TR2
0 D902 
6-502-961-01  DIODE   DA2J10100L
0 D910 
6-501-297-01  DIODE   1F6G
0 D911 
8-719-063-74  DIODE   D1NL20U-TR2
0 D912 
6-503-022-01  DIODE   DZ2J100M0L
0 D913 
6-503-037-01  DIODE   DZ2J24000L
0 D914 
8-719-083-71  DIODE   UDZSUSTE-1730B
0 D915 
8-719-069-61  DIODE   UDZSUSTE-1710B
0 D916 
6-503-015-01  DIODE   DZ2J051M0L
0 D920 
6-503-731-01  DIODE   SARS10
0 D922 
6-503-034-01  DIODE   DZ2J200M0L
0 D923 
6-502-961-01  DIODE   DA2J10100L
0 D924 
8-719-063-74  DIODE   D1NL20U-TR2
0 D925 
6-502-961-01  DIODE   DA2J10100L
0 D926 
6-502-961-01  DIODE   DA2J10100L
0 D927 
8-719-069-56  DIODE   UDZSUSTE-176.2B
0 D928 
6-502-968-01  DIODE   DZ2J062M0L
0 D929 
6-502-961-01  DIODE   DA2J10100L
0 D930 
6-503-042-01  DIODE   DZ2J330M0L
0 D931 
6-502-970-01  DIODE   DZ2J068M0L (Except US, CND, TW)
0 D932 
6-503-022-01  DIODE   DZ2J100M0L
  D940 
6-501-849-01  DIODE   FMX-22SL
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
When indicating parts by reference num-
ber, please include the board name.
Note:
•  Due to standardization, replacements in 
the parts list may be different from the 
parts specifi ed in the diagrams or the com-
ponents used on the set.
•  -XX and -X mean standardized parts, so 
they may have some difference from the 
original one.
•  Items marked “*” are not stocked since 
they are seldom required for routine ser-
vice. Some delay should be anticipated 
when ordering these items.
• RESISTORS
  All resistors are in ohms.
 METAL: 
Metal-fi lm resistor.
  METAL OXIDE: Metal oxide-fi lm resistor.
 F: 
nonfl ammable
• CAPACITORS
 uF: 
μF
• COILS
 uH: 
μH
• SEMICONDUCTORS
  In each case, u: μ, for example:
 uA. 
. : 
μA. . , uPA. . , μPA. . , 
 uPB. 
. 
: 
μPB. . , uPC. . , μPC. . , 
 uPD. 
. 
: 
μPD. .
• Abbreviation
 AUS : 
Australian 
model
  CH 
: Chinese model
  CND  : Canadian model
  EA 
: Saudi Arabia model
  MX 
: Mexican model
  SP 
: Singapore model
 TW  : 
Taiwan 
model
POWER
Ver. 1.2
The components identifi ed by mark 0 
or dotted line with mark 0 are critical for 
safety.
Replace only with part number specifi ed.
Les composants identifi és par une marque 
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
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