HCD-S550/S880
56
56
7-29. SCHEMATIC DIAGRAM – I/O Section (1/2) –
•
See page 67 for Waveform.
•
See page 72 for IC Block Diagrams.
L205
R215
R292
R208
R209
R211
R210
R212
D203
D202
R220
C608
C609
R221
R213
R216
L206
R293
C217
R291
R295
C216
C215
C211
Q220
Q221
R294
C210
C213
C214
R266
R256
C224
C222
R290
C227
R214
R225
R217
R218
R223
R222
R226
R219
R224
C
228
CN205
J205
J206
R236
R242
C235
R241
C238
C234
R229
C236
R235
R244
R238
C237
R237
C241
C239
C240
R246
R243
R249
C242
R253
R300
R303
C229
C231
C244
R251
R231
R254
Q206
Q205
C225
Q208
D204
R227
C232
R228
C230
Q207
C
245
C
243
C
223
C221
X201
C208
C206
C205
C209
D
201
R207
C204
R203
R204
R202
R205
C203
R206
Q223
Q222
R201
C201
IC202
CNP205
S801
R250
R233
R247
R
252
C233
R230
R232
Q201
C226
CN201
CN202
IC201
C220
C207
6.8k
1k
220
220
220
220
220
MA111-TX
0
100k
6800p
6800p
100k
47k
4.7k
1k
220
16V
470k
330
1
1
22
25V
2SC2412K
2SC2412K
330
22
25V
0.01
0.01
10k
10k
22 25V
22 16V
470k
22 16V
6.8k
33k
33k
10k
10k
33k
33k
100
100
0.1
2P
6P
6P
10k
10k
22
25V
47k
220p
1000p
100k
220p
47k
10k
10k
22
25V
6.8k
22
25V
22
25V
220p
47k
6.8k
6.8k
220p
47k
0
0
2200p
2200p
2200p
75
75
75
DTC124EK
DTC124EK
0.1
DTC343TK-T-146
0
1k
10
50V
1k
10
50V
DTC343TK-T-146
10
50V
10
6.3V
0.1
22
16V
4.332MHz
56p
51p
0.01
47
16V
U
D
Z-T
E1
7
-4
.3B
270
560p
68k
47k
1k
100k
0.1
470k
DTC124EKA
2SA1037AK
4.7k
330p
MC14052 BDR2
2P
10k
10k
10k
10k
1000p
100k
6.8k
2SC2492K-T
-146-QR
0.1
11P
29P
BU1924F-E2
22
25V
4.7
50V
Z1
Z2
Z3
Z4
Z5
Z7
Z
8
Z9
Z10
CE
TD
DO
DI
CK
TD
CK
DO
CE
DI
C1
C2
C3
FM-DET
TUNED
R-CH
L-CH
DO
CK
CE
DI
Y0
Y2
Y
Y3
Y1
INH
VEE
VSS
VDD
X2
X1
X
X0
X3
A
B
A.GND
RDATA
RCLK
TUNDO
TUNDIN
TUNSTE
TUNCE
TUNCLK
D.GND
D.IN
D.DND
D.OUT
D.GND
AUMUTE
DGND
L
A.GND
R
A.GND
R.IN
A.GND
L.IN
10V
10V
AV0
AV1
AV2
NC
I/P-SEL
10V
TU-ON
A.GND
(CHASSIS)
(1/2)
AUDIO OUT R
AUDIO IN R
AUDIO OUT L
AUDIO IN L
VIDEO OUT
VIDEO IN
AUDIO IN R
AUDIO IN L
COMPONENT
VIDEO OUT
Y
COMPONENT
VIDEO OUT
PB/CB
VIDEO IN
COMPONENT
VIDEO OUT
PR/CR
VIDEO 1
VIDEO 2
BUFFER
RDS DECODER
AMP
AMP
B+ SWITCH
B+ SWITCH
(AEP,UK,CIS)
AUDIO INPUT
SELECTOR
INVERTER
INVERTER
MUTING
MUTING
SELECTABLE
INTERLACE
SCAN SELECT
FM/AM TUNER
PACK
THE ASSEMBLED
BLOCK
SUPPLIED WITH
FM
COAXIAL
AM
T2
T1
VSS2
VDD2
XI
XO
NC
RCLK
CMP
VSS3
VSS1
VDD1
MUX
VREF
RDATA
QUAL
10
µ
H
75
Ω
(Page 57)
(Page 48)