Sony DAV-C770 / HCD-C770 / HCD-C990 Service Manual ▷ View online
HCD-C770/C990
61
61
7-30. SCHEMATIC DIAGRAM – VIDEO Section –
•
See page 76 for IC Block Diagrams.
C294
L207
L209
R256
R265
R266
C282
C281
IC206
C285
C277
C218
C202
C279
C292
C293
C295
C296
C297
C298
C300
C302
R270
C288
R259
R268
R273
L202
C252
R278
R286
Q214
CN207
CN203
C287
C272
C290
C289
C280
C283
C291
C278
C276
C284
IC207
C267
IC209
C299
C301
R267
R269
IC204
C248
C275
C274
J202
C286
Q210
IC208
C265
FB201
FB202
FB203
FB206
FB204
FB205
0.1
10k
10k
10k
0.1
0.1
MM1510
0.1
22 6.3V
47
16V
220
6.3V
0.01
220 6.3V
100 4.0V
100 6.3V
470 4V
220 6.3V
100 4V
100 6.3V
100 6.3V
75
0.1
75
75
75
0.1
10k
10k
DTC144EKA
11P
14P
0.1
0.1
0.1
10
6.3V
1.0
50V
50V
1.0
50V
10
6.3V
10
6.3V
10 6.3V
100
6.3V
NJM2235V
100
6.3V
NJM2285V
22 6.3V
22 6.3V
75
75
TORX179L
22
6.3V
0.1
10 6.3V
2P
0.1
DTA114EKA
MM1568
10
6.3V
IN1
SW
1
S
W
2
GN
D
O
U
T
V
D
D
IN3
G
ND
G
ND
GN
D
IN
2
VIDEOV
VIDEOY
VIDEOC
GND
D5V
GND
GND
CB
GND
CR
VS/WIDE
D5V
NC
CB
CR
Y
V2-IN
V-OUT
V1-IN
D-IN
AV2
AVO
AV1
GND
I/P SW
VIDEO INPUT
SELECTOR
SELECTOR
VIDEO
SAG
OUT
VCC
PS
GND
IN
VCC
Q210,214
WIDE SWITCH
OPTICAL RECEIVER
S VIDEO
VIDEO
OUT
MONITOR
DIGITAL IN
VIDEO 2
OPTICAL
VIDEO AMP, 75Ω DRIVER
10µH
10µH
75Ω DRIVER
10µH
65
64
63
62
61
(Page 59)
(Page 48)
HCD-C770/C990
62
62
7-31. PRINTED WIRING BOARDS – DC-DC CONVERTER Section –
•
See page 37 for Circuit Boards Location.
IC801
G
DVD BOARD
CN005
N
CONTROL BOARD
CNP804
M
KEY BOARD
CN811
P
POWER SW BOARD
CNP911
L
FL BOARD
CN805
9
1
10
E
DC- DC CONVERTER
STANDBY
D812
1
2
1
2
E
18
(COMPONENT SIDE)
DDCON BOARD
1-685-070-
11
(11)
DDCON BOARD
(CONDUCTOR SIDE)
1-685-070-
11
(11)
POWER LED BOARD
1-685-071-
11
(11)
A
B
C
D
E
1
2
3
4
5
• Semiconductor
Location
Ref. No.
Location
D806
E-2
D807
E-2
D808
E-2
D809
E-2
D810
E-3
D812
C-5
IC801
D-3
Q803
E-2
Q804
D-2
(Page 42)
(Page 64)
(Page 64)
(Page 69)
(Page 66)
HCD-C770/C990
63
63
7-32. SCHEMATIC DIAGRAM – DC-DC CONVERTER Section –
C822
D810
C823
C820
R874
R855
D806
D807
D808
D809
Q803
Q804
R850
C821
L801
CN814
FB802
C806
CN803
C805
R814
C802
C803
C804
IC801
CN812
CN804
R813
R812
R811
R810
R841
R842
R843
R838
FB800
FB801
CN807
CN802
CNP809
D812
R804
T801
0.1
UDZS-TE17
-6.2B
10
50V
0.01
33k
100
MA111-TX
MA111-TX
MA111-TX
MA111-TX
2SD1624-T
-TD
2SD1624-T
-TD
3.9k
10
10V
19P
22
6.3V
10P
0.01
47k
0.001
0.001
0.01
NJU3713G
12P
5P
100
100
100
100
100
100
100
47
2P
2P
2P
SLR325VR-T31
470
LCLR
LCS
FCLK
FDATA
FCS
KEY1
ENA
ENB
5V
6.5V
KEY0
SIRCS
KEY2
DGND
DIMM
STBY-LED
SIRCS
5V
DGND
FDATA
FCLK
FCS
DIMM
VFL
FL
FL1
DGND
VSS
P11
P12
P10(R)
P9(G)
P8(R)
P7(G)
P6(R)
P5(G)
VDD
CLK
DATA
STB
CLR
P4(R)
P3(G)
P2(R)
P1(G)
DGND
POWER-SW
LED DRIVER
DC-DC
CONVERTER
D806-809
RECT
Q803,804
OSC
STANDBY
47µH
(Page 51)
(Page 70)
(Page 65)
(Page 65)
(Page 67)
HCD-C770/C990
64
64
7-33. PRINTED WIRING BOARDS – CONTROL Section –
•
See page 37 for Circuit Boards Location.
DISC5
D805, S819
S820
DISC4
D804, S817
S818
(DISC5)
(DISC4)
DISC3
D803, S815
S816
(DISC3)
DISC2
D802, S813
S814
(DISC2)
DISC1
D801, S811
S812
(DISC1)
M
DDCON BOARD
CN812
1-685-068-
PRESET
−
+
NEXT
PREV
SOUND, −
FIELD, +
S821
DISPLAY
BAND
FUNCTION
N
DDCON BOARD
CN804
ROTARY ENCODER
1
3
VOLUME
(COMPONENT SIDE)
KEY BOARD
(CONDUCTOR SIDE)
KEY BOARD
(COMPONENT SIDE)
VOL BOARD
1-685-069-
11
(11)
1-685-069-
11
(11)
CONTROL BOARD
1-685-068-
11
(11)
11
(11)
A
B
C
D
E
F
G
1
2
3
4
5
6
7
1-685-887-
11
(11)
CONTROL BOARD
(CONDUCTOR SIDE)
• Semiconductor
Location
Ref. No.
Location
D801
A-6
D802
A-5
D803
A-4
D804
A-3
D805
A-2
(Page 62)
(Page 62)
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