XR-C8220R
– 27 –
– 28 –
7-3.
BLOCK DIAGRAM – MAIN Section –
05
INAO1
VOUT
TCO1
VR
IN1
TIN1
FD
IN1
FNTO1
REO1
(Page 24)
(Page 24)
AM/TIR
FM-L
INPUT SELECT,
ELECTRICAL VOLUME
IC301
ELECTRICAL VOLUME
(FOR SUBWOOFER)
IC350
LINE DRIVER
IC310
INPUT
SELECTOR
VOLUME
CONTROL
CIRCUIT
VOLUME
CONTROL
CIRCUIT
TONE
CONTROL
CIRCUIT
FADER
CONTROL
CIRCUIT
REFERENCE VOLTAGE
GENERATOR (FOR BIAS)
IC302
SUB CUT
SWITCH
Q360, 362
LOUDNESS
CONTROL
CIRCUIT
SHIFT
REGISTER &
LATCH
VCT
BUFFER
CN780 (1/2)
BUS
AUDIO IN
L
R
R-CH
CN781 (1/2)
FRONT
LINE OUT
CN780 (2/2)
REAR
LINE OUT
L
R
L
R
R-CH
R-CH
COM +8V
R-CH
R-CH
R-CH
R-CH
D351
D350
CE
DATA
CLK
VOLCE
DATA
CLK
VCT
GAIN
B
(Page 25)
TAPE-L
C
22
16 21
17
40
42
33
32
31
OUT1
VR
IN1
INP1
16
15
INAO1
BUFFER
17
20
30
26
25
23
24
OUT1
OUT2
IN1
IN2
12
13
7
2
41
39
A
SHIFT
REGISTER &
LATCH
ZC
DET
CE
DATA
CLK
7
8 9
36 – 38
AM-IN-L
AUX-IN-L
FM-IN-L
TAPE-IN-L
CN781 (2/2)
SUB OUT
L
R
R-CH
R-CH
R-CH
SUBCE
DATA
CLK
SUBCE
VOLCE
DATA
CLK
+
MUTING
Q340
MUTING
Q430
MUTING
Q330
MUTING
Q440
MUTING
Q361
MUTING
Q461
22 MUTE
4
11
12
IN1
15 IN3
IN2
14 IN4
POWER AMP
IC700
5
3
21
23
OUT2+
OUT2–
OUT4+
OUT4–
7
OUT1+
OUT1–
17
19
OUT3+
OUT3–
CN700 (1/2)
(POWER CONNECTOR)
1
9
FRONT L (+)
FRONT L (–)
FRONT R (+)
FRONT R (–)
REAR L (+)
REAR L (–)
REAR R (+)
REAR R (–)
4
2
12
10
3
11
TEL-ATT
13
TEST MODE
15
9
POWER AMP
MUTE SWITCH
Q702
LEVEL SHIFT
Q603
MUTING
CONTROL SWITCH
Q700, 701
D717
66
VOLSO/SUBSO
VOLCKO/SUBCKO
67
62
SUB-SW0
SUB-SW1
61
68
SUBCE
VOLCE
MUTE
64
65
SD
CSV-SO
21
15
DOLBC 115
58
TEL-ATT 79
SYSTEM CONTROLLER
IC600 (3/5)
CSV
IC650
SI
CSV-CKO
22
14
CSV-CE
23
AOUT
R-CH
23
8
ST
NAR
CSV-NAR
117
22
RESET
9
17
D715
TESTIN
CSV-RST
BUFFER
IC320
BUFFER
IC383
XT
X650
4.19MHz
2
3
XT
ST-BY
• SIGNAL PATH
: AM (MW/LW)
: FM
: TAPE PLAY
: BUS AUDIO IN
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
