4-4. BLOCK DIAGRAM — MAIN SECTION —
– 41 –
– 42 –
33
32
MUTE
CONTROL
Q205, 206
ACC
CHECK
Q608
BU
CHECK
IC604
BEEP
DRIVE
Q502
MUTE
CONTROL
Q211
VOL
CONTROL
Q203
67
CKO
66
SO
64
VOLCE
68
SUBCE
61
SW1
62
SW0
118
LEDON
81
ACCIN
78
ILLIN
79
TELMUTE
58
TESTIN
15
BEEP
55
1
2
RAMBU
120
POWON
SUB
VOL/
SUB
R
L
FRONT
-1
-2
CN201
CN201
21 16 22
11
14
13
20
12
11
7
9
4
15
9 10
9 8 7
26
25
23
7
24
CLK
DATA
CE
PDOWN
RES
CE
B A
SWITCH (SUB)
IC201
CLK
DATA
CE
ELECTRONIC VOLUME (SUB)
IC204
ELECTRONIC VOLUME
IC202
12
D201
7
1
3
LINE DRIVER (SUB)
IC205
2
12
13
SW201
(LINE OUT/IN)
OUT IN
Q201
Q207
Q208
LINE DRIVER
IC207
REO1
FNTO1
Q214
Q215
GND
ISOLATION
IC209
GND ISOLATION
IC210
STBY
22
MUTE
3
5
1
9
2
10
5
14
13
15
7
16
6
AMP+B
BATT
BU5V
ILL
CHECK
Q604
ACC
D607
D602
6
FM-ON
7
4
3
2
TU-ON
REG
IC603
3
1
BATT
BZ501
BEEP
SW502
(POWER SELECT)
MODE2
MODE1
STB
9
8
COM8V
ANT+B
6
AMP+B
ANT+B
7
VCC
10 AM8V
11 FM8V
COM8V
AM8V
FM8V
AMP+B
POWER SUPPLY
IC602
ACC
F901
BATT
Q622
BU5V
R-CH
R
L
REAR
-3
-4
R-CH
R
L
EQ OUT
-1
-2
R-CH
CN202
CN203
R
L
SUB OUT
-1
-2
R-CH
LINE
OUT/IN
POWER AMP
IC211
CN601
FL+
FL-
RL+
RL-
AMP REM
ILL
ATT
TEST
ACC
BATT
ANT REM
1
13
1
13
SYSTEM CONTROL
IC501 (1/2)
LPF
Q51
FM 8V
AM 8V
D12
L-OUT
R-OUT
S-METER
SD
ST-IND
AM-IFCOUT
FM-IFCOUT
VCO (FM/AM)
VT (FM/AM)
LO/DX
RECEIVE/SEEK
TUNER UNIT
TU10
18
16
AM-DET.OUT 12
19
53
60
5
13
20
22
11
21
6
5
4
13
39
41
40
42
CN201
BUS AUDIO
IN
R-CH
X10
7.2MHz
SI
ST-MONO
SD-IN
VSM
TUNMUTE
SO
PLL
CKO
CE
TIR
Q17
R-CH
R-CH
CD SECTION
CD L-CH
16
9
15
IF.IN
AM.OSC
FM.OSC
PD
LO/DX
SEKOUT
XI
XO
D.OUT
NARROW
D.IN
CLK
CE
1
20
6
5
4
2
PLL
IC10
25
26
27
28
7
MUTE 65
8.5V REG
Q12
5V REG
Q11
TU 8.5V
FM-ANT
AM-ANT
FM+B
+B (FM/AM)
AM+B
1
2
8
9
10
WIDE/
NARROW 24
1
DISPLAY SECTION
S-OUT
4
(ANTENNA)
04
Signal Path
: FM
: AM
: CD
TIRPLAY
MUTE
DRIVE
Q19
2
1
TIR/AM/CSV SWITCH
IC104
7
6
3
5
WIDE
3
Q15
Q16
Q102
Q103
IC11
ANT+B
TU 5V
98
99
CE
RES
PDOWN
18
NARROW
CONTROL
Q14
L-CH
R-CH
-5
-6
40
4
1
30
LOCNTR
BBE
PRCSS
8 9 10
TONE
31
VOL
4
12
3
11
R-CH
FR+
FR–
RR+
RR–
BYPASS/BOOST
ENHANSMENT
IC301
14
20
VCT
VREF (L)
VREF (R)
REF VOLTAGE
IC206
5
7
3
1
17
56
POWSEL
51
DSTSEL2
57
EQ-SEL
E model
FM200k
AM10k
FM50k
AM9k
ON
OFF
SW501
FREQUENCY
SELECT
SW201
(LINE OUT/IN)
IN OUT
15
PDOWN
RES
CE
116
114
115
109
A-MUTE
ML
MD
MC
ML
AATT
MD
MC
110
EMPH
EMPH
2
CD
SECTION
100
CDX-C880
Содержание CDX-C880 - Fm/am Compact Disc Player
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