Sony STR-K990 - Schematic Diagrams - Display & Power Key

3030
STR-K990
STR-K990
4-16. SCHEMATIC DIAGRAM – DISPLAY BOARD, POWER KEY BOARD –
• See page 41 for IC Block Diagrams.
R
DCAC BOARD
CN2000
(5pin)
(Page 34)
No mark:FM
H
DIGITAL
BOARD
(4/5)
CNS513
(Page 22)
M
MAIN BOARD
(4/4)
CNP507
(Page 28)
50V
10
C115
1k
R105
220p
C110
0.1
C145
220p
C149
S106
MOVIE
S105
MUSIC
220p
C112
S112
MEMORY/ENTER
1234567891011
12
13
14
15
16
17
18
19
20
21
22
2324252627282930313233
34
35
36
37
38
39
40
41
42
43
44
PT6315
IC100
SW1 SW2 SW3 SW4 OSC DOUT DIN CLK STB KEY1 KEY2
VSS
VDD
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16
VEE
SEG17
GRID11 GRID10
GRID9
GRID8
GRID7
GRID6
GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
1.5k
R106
S102
AUTO CAL
14 13 12 11 10 9 8
7654321
TC74ACT08P
IC101
S104
DISPLAY
330
R109
S109
S111
TUNING MODE
2.2k
R107
50V
C165
10
100
R115
S108
2CH
220
R101
S103
INPUT MODE
0.1
C160
470
R103
S101
MUTING
0.1
C162
RV102
82k
R118
220p
C147
220p
C164
220
R108
100
R116
470
R110
220p
C111
R120
10
1/4 W
680
R104
S107
A.F.D
0.1
C144
100R119
100
R117
27891011 1256 14 19181713 16 2015 23 24 2721 28262522 31 33 3530 32 363429 42 44434037 3938 41 46 484745 49 50 53
FL101
1
3
4
CN108
F1
F2
-20V
50VC148 10
CL001
CL002
CL003
CL066
CL004
CL010
CL011
CL022
CL023
CL024
CL030
CL042
1
2
2P
CNP106
DCAC IN
DCAC IN
10
JW102
10
JW103
CL028
CL029
0.1
C114
5.0
JW107
5.0
JW108
5.0
JW106
12.5
JW105
1
2
3
4
5
5P
CN104
AD1
PW_SW
GND
TUNING-JOG-A
TUNING-JOG-B
RV101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CNS100
NC
GND
GND
+3.3V(STBY)
+5V
VOL_JOG(2A)
VOL_JOG(2B)
PW-SW
SIRCS
AD2
AD1
FL-LAT
FL-DIN
FL-CLK
INPUT JOG 4A
INPUT JOG 4B
DCAC IN
2.7
R197
2.7
R198
S110
VCC
OUT
GND
NJL24H400A
IC103
330
R102
6G
5P
10P
17P
10G
1G
6P
7P
9P
1P
16P 5P 4P 6P
8G
12P
3G
2G 2P
6G
13P
7P
3P
14P
8G 9G
10G
9G
13P
5G
11P
8P
8P 14P 3P
15P 12P
9P
16P 10P
15P 17P
5G
1P
11G
4G
7G
11P
7G
2P
4P
11G
1G 2G 3G 4G
DISPLAY BOARD
IC100
IC101
IC103
IC B/D
IC B/D
REMOTE
CONTROL
RECEIVER
BUFFER
FL DRIVE
MASTER VOLUME
INPUT
SELECTOR
(FLUORESCENT INDICATOR TUBE)
3.3
+
-
TUNING
-17.1
-17.2
2.9
-13.5
-17.1
-17.1
-17.1
-17.1
-17.1
-17.1
-17.2
-17.1
5
0 5 5
-16.9
-16.9
-13.6
-12
-15.5
-12.2
-15.6
-10.7
5
-17.2 -17.2 -19.1 -18.7 -13.8 -15.5 -18.7 -15.4
-17 -17
3.3
5
5
53.3
5
5 55
0
0
3.3
5
S100
S115
680
R111
1
2
3
4
5
5P
CN103
AD1
PW_SW
GND
TUNING-JOG-A
TUNING-JOG-B
/
SPEAKERS
(OFF/A/B/A+B)
POWER KEY BOARD
3
2
1
17P
4P
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
A
B
C
D
E
F
G
H