Read Sony ICF-CD830 / ICF-CD830L Service Manual online
11
11
ICF-CD830/CD830L
5-2. BLOCK DIAGRAM (CD830)
: AM
: FM
: CD
• Signal Path
SYSTEM CONTROL
IC401
OPTICAL PICK-UP
BLOCK
(KSS-213C)
A
B
C
D
E
F
LD
VC
+5V
GND
PD
VR
LD
DRIVE
FOCUS
COIL
TRACKING
COIL
Q501
RF AMP
IC501
VC
51
PD1
38
PD2
39
E
42
F
41
LD
36
PD
37
MOTOR/COIL DRIVE
IC591
F+
26
F-
27
T+
17
T-
18
SL+
2
SL-
1
M
SLED
MOTOR
SP+
12
SP-
11
M
SPINDLE
MOTOR
F+
F-
T+
T-
25
19
3
SLO
16
TAO
13
FEO
6
DIGITAL SIGNAL PROC.
D/A CONV.
IC551
DIGITAL SERVO
RF
35
32
RFI
33
RFO
DATA
20
CLK
23
XRST
DATO
12
CLKO
14
67
L OUT1
74
L OUT2
7
DATA
9
CLK
8
XLAT
4
SQCK
57
SCOR
5
SQSO
71
XTAI
72
XTAO
17
XLON MUTE
X551
16.9344MHz
C DATA
56
C CLOCK
54
C LATCH
55
C SQCK
62
C SQSO
61
C SENS
50
6
SENS
C MUTE
63
13
14
FM IF
AM IF
FM/AM
FRONT- END
15 BAND
C SCOR
52
SL IN
T IN
F IN
MAIN BOARD
ANT1
18
20
22
19
24
FM RF IN
FM RF OUT
FM OSC
AM RF
AM OSC
BPF1
B.P.F
3
1
IC1
CF3
10.7MHz
T1
AM IFT
MUTE
Q151
MUTE
CONT
Q351
Q351
S401
DOOR SW
22
21
XLT
XLTO
13
27
FOK
FOK
18
24
COUT
CIN
11
25
SENS1
SEIN
10
26
SENS2
76
A OUT2
65
A OUT1
SPOA(LIMIT)
15
62
SMUTE
RADIO ON
80
C SENS2
51
C RST
64
21 REG
L1
AM FERRITE-ROD
ANTENNA
L2
FM RF
CT2
CV1-2
CV1-1
CV1-4
L3
FM OSC
CT3
CT1
CT4
CV1-3
L4
AM OSC
RESET
IC402
16
MIX OUT
CF2
455kHz
26
DISCRI
27
VCO
CF1
S1
FM
AM
RV1
6
L OUT
5
R OUT
BUFFER
Q131
BUFFER
Q231
BUFFER
Q101
BUFFER
Q201
MUTE
Q251
RV351
VOLUME
BOARD
MOTOR(6P)
15
MDP
21
SP IN
7
MUTE
79
XRST
53
BUZZER
77
A MUTE
79
POWER ON
DOOR IN
75
LIMIT
SW
11
12
3
5
8
IC371
POWER AMP
SP101
L
SP201
R
(SPEAKER)
KEY BOARD
+B SW
Q1
+5V
TU +B
SEG0
SEG15
11
26
LIQUID CRYSTAL
DISPLAY PANEL
LCD401
COM0
COM3
7
10
KEY0
KEY12
33
47
FUNCTION
KEY
S601-613
BOARD
LED
D401-402
D653
D652
D651
60
ALM-BUZZER LED
59
ALM-RADIO LED
58
ALM-CD LED
67
RESET
D905-908
AC
IN
T901
POWER
TRANSFOMER
BOARD
TRANSFORMER
REG
Q903
REG
Q901
+B SW
Q551
CD +B
+5V
M +6V
IC402
D903
D904
49
AC IN
57
CD ON
FM
TRACKING
AM
TRACKING
FM
FREQUENCY
COVERAGE
AM
FREQUENCY
COVERAGE
AM
IF
FM
VCO
(FM ANTENNA)
M571
M572
S570
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