Schematic Diagram - Io Board - Sony STR-KS370 Service Manual

5-15. SCHEMATIC DIAGRAM - IO Board -

1 2
A
IO BOARD
B
J200
AUTO
CAL MIC
FB203 FB200
C
R273
1k
RT1N441C-TP-1
PLUG DETECT
SWITCH
D
E C291
0.1p
R223
R 1k
TV R224
AUDIO IN 1k
L
J201
R225
R 1k
SA-CD/CD R226
1k
AUDIO IN
L
F
R232
100k
J202
VIDEO
COAX IN
DIGITAL
G
GND
3 0
SAT/CATV
OUT
2
OPT IN 0
VCC
1
IC202
DIGITAL OPTICAL RECEIVER
IC202
T0RX147L
GND
3 0
TV
OUT
OPT IN
2
H 0
VCC
1
IC203
DIGITAL OPTICAL RECEIVER
IC203
TORX147L
I
J
STR-KS370
• See page 33 for IC Block Diagrams.
3 4 5
C258
10 C259
R264
50V 47p
470
Q200 R267 R268
2SC3052EF-T1-LEF 470 27k
GAIN CONTROL
R262
2.2k 2.6 8.8
C260
120p
R269
3.1
22k
R266
1.8k
4.3 4.4 4.4 8.8
5 6 7 8
Q201
4 3 2 1
4.4 4.4 4.4
0
2.4
R263 R274
100k 10k
C254 C255 C257 R265 C256 C278 R275 C262
0.1 47 47 1k 100p 100 10k 10
16V 16V 16V 50V
R229
C227
100k 100p
C235
50V
C236
50V
C230 R231 C229 R230 C228
100p 100k 100p 100k 100p
C219 C221 R218 R219
47 1p 47k 470k
R216
16V
75
C220
0.1
IC211
R277
100
WAVE SHAPPER
IC211
TC7WHU04FU(TE12R)
R217
470
R276
100
R286
100
IC B/D
0 0 0 3.4
8 7 6 5 4 3 2 1
IC210
DIGITAL AUDIO
INPUT SELECTOR
IC210
TC74VHC153FT(EL)
9 10 11 1 2 1 3 1 4 1 5 1 6
3.4 3.3 3.3
C217 C216 C265 C223 C222
0.1 0.1 0.1 0.1 470
10V
6 7 8 9
C273 C272 R290
0.1 0.1
R272 R270
4.7k 100
IC209
MIC AMP
IC B/D 0 0 4.4 8.8 4.5
IC209
NJM4558V-TE2
24 23 22 21 20 19 18
IC212
ANALOG AUDIO
INPUT SELECTOR
IC212
BD3842FS-FD2
1 2 3 4 5 6 7
C261 C253
0.1 10 R252
4.4
4.4 4.4 4.4 4.4 4.4 4.4 4.4
C263 R271 50V 47k
0.1 4.7k
R256 47k
R241 47k
C233
R242 47k
10
50V
C234
R253 47k
10
10
50V
R257 47k
10
R281 47k
R254 47k
R258 47k
R255 47k
R243 47k
FB201
3.3 1.5 1.5
8 7 6 5
1 2 3 4
1.7 3.1
R220
100
JL231
25 25
10 11 12
R289
C214
47k 10 50V
47k
C206
10 50V
R211 2.2k
R210 R200
2.2k
2.2k
4.6 4.5 4.6
17 16 15 14 13
FB202
8 9 10 11 12
4.4 4.4 4.5 4.6
C201 C208
0.1 100
16V
R209 R208 R206
2.2k 2.2k 2.2k
R207
2.2k
R201
2.2k
C282 C281
47 47
16V 16V
R297
47k
C283
220p
R296
47k
C280
C284
0.1
220p
R295
R294
1k
1k
STR-KS370
13 14 15
CNS200
25P
JL226
1 DCAC ON/OFF
JL204
2 SAIR OUT L
JL227
3 BD3842 CLK
JL228
4 SAIR OUT R
JL205
5 BD3842 DATA
JL211
6 ANALOG OUT L
JL212
7 +3.3V
JL213
8 ANALOG OUT R
JL214
9 DGND
JL215
10 DMPORT R
JL216
C285
11 DGND
0.1
JL217
12 DMPORT L
JL229
13 DIGITAL OUT
JL230
14 TUNER GND
JL218
15 TC74VHC153 A
MAIN
JL207
16 +9AV
BOARD
JL208
17 TC74VHC153 B (1/5)
JL209
18 AGND CNS201
19 TUNED SD (Page 19)
20 CE
21 DI
22 CL
23 DO/ST/SD
24 RDS CLK
25 RDS DATA
CNS250
9P
JL234
9 DO/ST/SD
JL235
ANTENNA
8 CL
JL236
7 DI
JL237 FM 75
6 CE COAXIAL
JL238
5 TUNED_SD TUNER
JL239 (FM/AM)
4 GND
AM
JL240
3 Rch
JL241
2 VCC
JL242
1 Lch