Schematic Diagram - I/O Section (1/2) - Sony HCD-S550 Service Manual

HCD-S550/S880
7-29. SCHEMATIC DIAGRAM – I/O Section (1/2) – •
J205
6P
AUDIO OUT R
R235
47k
AUDIO IN R
R300 0
R232
6.8k
R303 0
R230
100k
AUDIO OUT L
C233
1000p
VIDEO 1
AUDIO IN L
VIDEO OUT
R231
75
VIDEO IN
R251
75
C229 2200p
C231 2200p
(CHASSIS)
C244 2200p
J206
6P
AUDIO IN R
COMPONENT
C1
VIDEO OUT
Y
VIDEO 2 AUDIO IN L
COMPONENT
C2
VIDEO OUT
PB/CB
VIDEO IN
R254
75
COMPONENT
C3
VIDEO OUT
PR/CR
•
See page 67 for Waveform. See page 72 for IC Block Diagrams.
(1/2) (AEP,UK,CIS)
R203
68k
C236 R229 C234 R236
220p 100k 1000p 10k
C204
560p
C238 R241 C235 R242 R233
220p 47k 22 10k 10k
25V
R237 R238
6.8k 10k
C237 R244
C207
22 10k
4.7
25V
50V
R250
10k
R243 C239
6.8k 22
25V
R246 C240
47k 220p
R249 C241
6.8k 22
25V
R253 C242
47k 220p
AUDIO INPUT
SELECTOR
IC202
MC14052 BDR2
C226
0.1
C201 R201
330p 4.7k R206
Q201 470k
2SC2492K-T
-146-QR
BUFFER
R204 R202 R205 C203
47k 1k 100k 0.1
R207
IC201 C209
270
BU1924F-E2 47
16V
CMP T2
VSS3 T1
VSS1 VSS2
C205
VDD1 VDD2
0.01
R292
MUX XI C206 C215 C216
1k
51p 1 1
VREF XO
C208
56p
RDATA NC X201 R290
4.332MHz 470k
QUAL RCLK
Q220 Q221
RDS DECODER
2SC2412K 2SC2412K
AMP AMP
C210
R294
22
330
25V
R214
6.8k
R223 R218 R217 R225
10k 10k 33k 33k
C220
22 C224
25V
C222
R219 100
R222 R226
R224 100
33k 33k
Q206
DTC124EK
INVERTER
Q205
DTC124EK
INVERTER
C225
0.1
Q207
DTC343TK-T-146
MUTING
Q208
DTC343TK-T-146
MUTING
(Page 57)
56 56
CN201
L-CH
TD R212 220
TUNED
R-CH
10V
C214 C213
A.GND
0.01 0.01
FM-DET
A.GND
CK R208 220
D203 D202
CK
MA111-TX 0
C217 DO R209 220
220 DO
16V CE R211 220
CE
DI R210 220
DI
L205
Q222
2SA1037AK
B+ SWITCH
R293
1k
R291 R216 R213
470k 4.7k 47k
CN205
Q223
DTC124EKA
C211 B+ SWITCH
R295
22
330
25V
R215 DO
L206
6.8k
10µH
DI
R220 100k TD
C608 6800p CE
C609 6800p CK
22 25V R221 100k
22 16V
R266
10k
R256
10k
C227 22 16V
C230
10
R227
50V
1k
R228 C232
1k 10
50V
D204
0
11P
COAXIAL
FM/AM TUNER FM
PACK 75Ω
SUPPLIED WITH
THE ASSEMBLED
AM
BLOCK
CNP205
2P 2P
S801
SCAN SELECT
SELECTABLE
INTERLACE
CN202
29P
RDATA
RCLK
TUNDO
TUNDIN
TUNSTE
TUNCE
TUNCLK
D.GND
D.IN
D.DND
D.OUT
D.GND
I/P-SEL
NC
AV0
AV1
AV2
(Page 48)
AUMUTE
TU-ON
DGND
L
A.GND
R
A.GND
R.IN
A.GND
L.IN
10V
10V