Sony HT-CT770 Service Manual ▷ View online
HT-CT770
HT-CT770
29
29
5-4. BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -
TH901
RECT
D901
RECT
D965
LINE FILTER
LF901
RECT
D967
1 SIRCS_IN
REMOTE CONTROL
RECEIVER
IC802
2 SIRCS2
REMOTE CONTROL
RECEIVER
IC901
82 LED_PW
LED DRIVE
Q803
D801
20 BT_LED
LED DRIVE
Q804
10
RESET
75 FL_DATA
77 FL_CLK
76 FL_CS
77 FL_CLK
76 FL_CS
ND001
FLUORESCENT
INDICATOR TUBE
SYSTEM CONTROLLER
IC1002 (4/4)
AC1
(AC IN)
F901
F3001
POWER CONTROL
IC930
BD
6
VCC
3
FB/OLP
5
D934
D942
D803
D3003, 3004
D936
D932
PVDD_28V
+28V
(FOR L-CH)
+28V
(FOR R-CH)
GVDD_12V
BT3.3V
D937
REGULATOR
Q930
D3001
D812
+12V
REGULATOR
IC3003
F3002
F931
E4V
E3.3V
DSP1.1V
DIGITAL
POWER AMP
B+
71
AC_CUT
80
P_CON_DSP
37
P_CONT2
26
PCONT_DRIVER
64
P_CONT1
DC/DC
CONVERTER
IC1009
DC/DC
CONVERTER
IC2012
DC/DC
CONVERTER
IC3705
VDD
59
P_CONT3
DD12V
+12V
REGULATOR
IC1011
E12V
VOLTAGE
DETECT
IC1003
RESET SWITCH
Q1002
+3.3V REGULATOR
IC2007
BT1.8V
43
PCONT_BT
+1.8V REGULATOR
IC2015
MFI3.3V
+3.3V REGULATOR
IC1013
23
HDMI_TX_5VPWR
HDMI_TX_5V
DD6V
HDMI5V
+5V REGULATOR
IC3007
+5V REGULATOR
IC3002
DIR5V
SW3.3V
+3.3V REGULATOR
IC1008
SW4V
B+ SWITCH
Q1007, 1008
+3.3V REGULATOR
IC806
DC/DC
CONVERTER
D808, 809, Q805
78
P_CONT_HDMI
HDMI3.3V
HDMI1V
D1008
P-COM3.3V
F+
VIN
VH
+3.3V
REGULATOR
IC3006
+1V
REGULATOR
IC3005
FOR
FLUORESCENT
INDICATOR TUBE
T901
POWER
TRANSFORMER
SI
SCK
STB
58 RST_FL
RESET
85 DATA_NFC
NFC1
NFC MODULE
(RC-S801)
NFC_DATA
SW
SPICLK
86 SPICLK_NFC
NFC_IRQ
83 IRQ_NFC
NFC_SW
81 SW_NFC
NFC_SEL
84 SEL_NFC
NFC_RFDET
17 RFDET_NFC
ISOLATOR
PH930
SHUNT
REGULATOR
IC931
PROTECT DETECT
Q931
LAMP
(WHITE)
LAMP
(BLUE)
D802
+5V REGULATOR
IC2006
I
/ 1
S701
95 KEY0
72 KEY_INT
93 KEY1
S702, 703
(TOP PANEL KEYS)
92 KEY2
S704, 705
(TOP PANEL KEYS)
D/ST
1
HT-CT770
HT-CT770
30
30
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
(ANALOG)
J :
AUDIO
(DIGITAL)
E :
VIDEO
N :
Bluetooth
• Abbreviation
AUS :
AUS :
Australian
model
CH
: Chinese model
CND : Canadian model
EA
EA
: Saudi Arabia model
MX
: Mexican model
SP
: Singapore model
TW :
Taiwan
model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Circuit Boards Location
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AUS :
AUS :
Australian
model
CH
: Chinese model
CND : Canadian model
EA
EA
: Saudi Arabia model
MX
: Mexican model
SP
: Singapore model
TW :
Taiwan
model
• HDMI and MAIN boards are multi-layer printed board.
However, the patterns of intermediate layers have not
been included in diagrams.
been included in diagrams.
Note: When the complete MAIN board is replaced, refer
to “NOTE OF REPLACING THE IC3001 ON THE
MAIN BOARD AND THE COMPLETE MAIN
BOARD” on page 4.
MAIN BOARD AND THE COMPLETE MAIN
BOARD” on page 4.
Note: When the complete MAIN board is replaced, refer
to “NOTE OF REPLACING THE IC3001 ON THE
MAIN BOARD AND THE COMPLETE MAIN
BOARD” on page 4.
MAIN BOARD AND THE COMPLETE MAIN
BOARD” on page 4.
MAIN board
HDMI board
POWER board
DISPLAY board
IO board
KEY board
bluetooth module
(BT1)
(BT1)
NFC module
(NFC1)
(NFC1)
IR board
RF modulator
(RF1)
(RF1)
Ver. 1.2
Note: The components identifi ed by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Note: Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifi é.
le numéro spécifi é.
HT-CT770
HT-CT770
31
31
5-5. PRINTED WIRING BOARD - IO Board -
•
: Uses unleaded solder.
• See page 30 for Circuit Boards Location.
1
9
CN201
C201
C202
1
3
IC201
CAM201
R202
R203
R204
C203
JL201
JL202
JL203
JL204
JL205
JL206
JL207
JL208
R201
J201
IO BOARD
(COMPONENT SIDE)
IO BOARD
(CONDUCTOR SIDE)
(CHASSIS)
MAIN
BOARD
CN2005
>03P
ANALOG IN
OPT (TV)
DIGITAL IN
1-889-798-
1-889-798-
A
B
C
D
1
2
3
12, 13
(12, 13)
12, 13
(12, 13)
5-6. SCHEMATIC DIAGRAM - IO Board -
3.3
3.3
220p
C202
0.1
C203
220p
C201
J201
JL201
JL202
JL204
JL205
JL203
JL206
2.2k
R202
0
R201
100
R204
2.2k
R203
JSR1124
IC201
VOUT
1
GND
2
VCC
3
9P
CN201
SW3.3V
1
OPT
2
DGND
3
Lch
4
AGND
5
Rch
6
AGND
7
8
IR4V
9
IR
JL207
JL208
IC201
OPTICAL RECEIVER
ANALOG IN
OPT (TV) DIGITAL IN
IO BOARD
CN2005
MAIN
>03S
(2/6)
BOARD
(CHASSIS)
CAM201
1
C
2
B
3
A
4
5
(Page 37)
(Page 34)
Ver. 1.2
HT-CT770
HT-CT770
32
32
5-7. PRINTED WIRING BOARD - HDMI Board -
•
: Uses unleaded solder.
• See page 30 for Circuit Boards Location.
1
1
19
1
19
1
19
1
5
1
19
19
18
2
1
3
1
4
5
5
8
1
4
5
8
1
4
3
1
4
5
50
51
76
75
100
1
26
25
C3058
C3059
R3034
R3036
R3037
C3060
C3061
C3063
C3064
C3066
C3067
C3068
C3069
C3081
C3086
C3087
R3062
R3087
R3089 R3090
R3091
R3092
R3093
R3094
R3095
R3098
R3099
RB3000
RB3001
X3001
C3106
FB3002
FB3005
R3100
R3101
R3102
R3114
R3115
R3116
R3135
R3136
R3160
R3161
R3173
R3174
R3175
R3194
R3195
R3196
R3197
CN3002
CN3001
CN3000
CN3005
CN3006
CN3009
JL3036
JL3037
JL3038
JL3039
JL3040
JL3041
JL3042
C3014
C3015
C3021
D3001
IC3002
IC3005
R3202
IC3006
C3037
IC3007
R3203
R3204
IC3009
R3011
R3205
R3206
C3049
JL3085
JL3086
C3054
C3055
C3056
C3057
1
C3073
C3074
C3075
C3076
C3077
R3055
C3080
C3084
C3085
C3098
C3099
R3076
R3082
C3102
C3108
C3109
C3111
C3112
FB3003
FB3004
R3103
R3104 R3105
R3106
R3112
R3113
L3000
L3006
R3128
R3129
R3131
R3132
ET3000
ET3001
R3148
R3150
R3162
R3163
R3164
R3172
CL3000
R3183
R3184
R3185
R3187
CL3010
R3188
R3189
R3190
R3191
R3193
CL3031
CL3032
CL3033
CL3034
CL3035
CL3048
CL3059
C3008
CL3060
CL3061
CL3065
CL3066
CL3067
CL3068
CL3069
CL3070
CL3071
CL3072
CL3073
CL3074
CL3075
CL3076
CL3077
CL3078
CL3079
C3027
D3003
C3028
D3004
R3000
C3029
R3001
R3002
R3003
CL3080
R3004
CL3081
R3005
R3006
CL3083
R3007
CL3084
C3030
R3008
R3009
C3033
R3200
R3201
R3010
C3040
C3048
R3023
R3088
HDMI BOARD
(SIDE A)
HDMI BOARD
(SIDE B)
MAIN
BOARD
CN3502
CN3502
>01P
MAIN
BOARD
CN3501
CN3501
>02P
FFC1
A
K
TV (ARC)
HDMI OUT
3
2
1
HDMI IN
(CHASSIS)
(CHASSIS)
K
A
K
A
1-889-226-
11
(11)
1-889-226-
11
(11)
A
B
C
D
1
2
3
4
5
6
7
8
9
10
11
12
13
Note: IC3009 on the HDMI board cannot replace with single. When
this part is damaged, replace the complete mounted board.
(Page 34)
(Page 34)
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