Sony ICF-CD2000 / ICF-CD2000S Service Manual ▷ View online
– 48 –
– 49 –
– 50 –
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC3
ql
(XIN) (Radio ON Mode)
500 mV/DIV, 5 µs/DIV
2
IC501
7
(TE) (CD Play Mode)
200 mV/DIV, 5 ms/DIV
3
IC501
wa
(FE) (CD Play Mode)
200 mV/DIV, 20 ms/DIV
4
IC501
ea
(OSC) (CD Play Mode)
200 mV/DIV, 10 ms/DIV
6
IC502
tl
(XOUT) (CD Play Mode)
1 V/DIV, 20 ns/DIV
7
IC601
8
(OSC) (CD Play Mode)
500 mV/DIV, 5 µs/DIV
5
IC501
rj
(RF), IC502
qk
(EFMI)
(CD Play Mode)
500 mV/DIV, 500 ns/DIV
500 mV/DIV, 500 ns/DIV
8
Q74 (Collector) (Radio ON Mode)
2 V/DIV, 200 ns/DIV
2 V/DIV, 200 ns/DIV
– LCD Board –
1
IC401
8
(XT1/P74)
500 mV/DIV, 10 µs/DIV
1.8 Vp-p
13.3
µ
s
Approx.
360 mVp-p
360 mVp-p
Approx.
560 mVp-p
560 mVp-p
600 mVp-p
26.6 ms
1.2 Vp-p
3.6 Vp-p
59.2 ns
1.2 Vp-p
9.5
µ
s
5.4 Vp-p
386 ns
9
Q74 (Base), Q75 (Collector)
(Radio ON Mode)
200 mV/DIV, 200 ns/DIV
(Radio ON Mode)
200 mV/DIV, 200 ns/DIV
670 mVp-p
384 ns
2 Vp-p
30.6
µ
s
2
IC401
qs
(CF2)
1 V/DIV, 100 ns/DIV
3.4 Vp-p
32.9 ns
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC1
CXA1111N
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
FM.IF
DISCRI
TUNING
METER
RIPPLE
FILTER
AM.IF
DET.AGC
BAND SIGNAL
OUTPUT CIRCUIT
REGULATOR
FM.FE
AM.FE
BAND
AM IF
FM IF
TUNE
EARTH
IF
AFCW
AFCJ
DET
FILTER
VCC
MUTE
MIX OUT
EARTH
FM IN
NC
AM RF
FM RF
REG
FM OSC
AFC
AM OSC
DISCRI
EARTH
IC2
LA3335M
FF 0º
1
2
3
4
5
6
7
8
9
10
FF 1/2
FF 90º
V.C.O
VCO STOP
SYNC
DET
STEREO
SWITCH
SWITCH
PHASE
COMPALATE
LAMP
TRIGGER
DECODER
IN
FILTER
VCC
VCO
NC
GND
STLED
M/ST
L
R
IC3
LC72137M-TLM
11
10
9
8
7
6
5
4
3
2
1
12
13
14
15
16
19
20
UNLOCK
DETECTOR
POWER ON
RESET
UNIVERSAL
COUNTER
CCB
I/F
CE
DI
CL
DO
XOUT
AOUT
XIN
AIN
PD
VSS
VDD
B04
FMIN
AMIN
B01
B02
B03
I01
I02
IFIN
PHASE
DETECTOR
CHARGE
PUMP
REFERENCE
DIVIDER
SWALLOW
COUNTER
1/16,1/17
4BITS
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
1/2
17
18
IC404
TC74VHC595FT (EL)
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
SHIFT REGISTER
LATCH
PARALLEL DATA
OUTPUT
GND
VCC
LATCH
CLOCK
PARALLEL DATA
OUTPUT
SERIAL DATA
INPUT
OUTPUT
ENABLE
SHIFT
CLOCK
SERIAL DATA
OUTPUT
RESET
QB
QC
QD
QE
QF
QG
QH
SQH
A
QA
IC501
LA9251M-MPB
+
–
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
–
+
–
1
64
63
62
61 60 59
58 57 56 55 54 53 52 51 50
49
2
3
4
5
6
7
8
9
10
11
12
13
14
16
I/V
BAL
VCA
VCA
APC
REF
RF DET
SLC
48
46
45
44
43
42
41
40
39
38
37
36
34
33
+
–
47
RF AMP
+
–
+
–
15
T. SERVO
&T. LOGIC
17
18 19
20
21
22
23 24 25 26
27 28
29 30 31 32
F. SERVO
&F. LOGIC
SPINDLE
SERVO
SLED SERVO
35
LATCH
TE
FIN2
FIN1
E
F
TB
TE–
TE
TESI
SCI
TH
TA
TD–
TD
JP
TO
NC
FD
FD–
FA
FA
–
FE
FE–
SP
SPG
SP–
SPD
SLEQ
SLD
SL–
SL+
OSC
NC
SLOF
TGRF
SP8
EFBAL
FSTA
LASER
NC
TJP
TGL
TOFF
TES
HFL
CLV
GND
RF
RF–
SLC
SLI
DEF
DRF
FSC
TBC
FSS
VCC
REFI
VR
LF2
PH1
BH1
LDD
LDS
NC
– 51 –
IC502
LC78626KE
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85
84
83
82
81
DRAM CONTROL
OVERFLOW
PROCESS
STARTING
CONTROL
DATA WIDTH CONVERSION
SHOCK
DETECTION
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
ADPCM
ENCODER
RAM ADDRESS
GENERATOR
ADPCM
DECODER
DIGITAL
ATTENUATER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
VCO
CLOCK
OSCILLATION
CLOCK
CONTROL
SLICE
LEVEL
CONTROL
CLV
DIGITAL
SERVO
SERVO COMMANDER
µ
COM
INTERFACE
X4 OVER
SAMPLING
DIGITAL
FILTER
INTERPOLATION
MUTING
SYNCHRONISM
DETECTION
EFM
DEMODULATION
C1, C2 ERROR
DETECTION&
CORRECTION
FLAG PROCESS
SUBCODE ISOLATION
QCRC
37 38
39
40
41 42 43 44
45 46
36
35
34
33
32
31
GENERAL PURPOSE PORT
PROHBITION
2KX8 BIT
RAM
DIGITAL
OUT
XTAL SYSTEM
TIMING
GENERATOR
NODE
DETECTION
48 49 50
47
60
61
59
58
57
56
55
54
53
52
51
L.P.F.
1BIT
DAC
DEFI
TAI
PDO
VVSS
ISET
VVDD
FR
VSS
TESCLK
TESA
TESB
TESC
TESGB
TEST5
CS
TEST1
EFMO
EFMI
TEST2
CLV+
CLV–
V/P
HFL
TES
TOFF
TGL
JP+
JP–
PCK
FSEQ
VDD
ASRES
CONT2
CONT3/SBC
CONT4/SFSY
CONT5/P
SBSY
TEST3
DOUT
TEST4
16M
42M
EFLG
FSX
EMPH
C2F
TOUT
MR1
TESE
TESD
MUTEL
LVDD
LCHO
L/RVSS
RCHO
RVDD
MUTER
XVDD
XOUT
XIN
XVSS
RWC
COIN
CQCK
SQOUT
WRQ
FMT
EMPP
RES
MMC0
MMC1
MMC2
MMC3
OVF
CNTOK
WOK
PAUSEIN
NGJ
EMPN
SHOCK
DRAM0
DRAM1
DRAM2
DRAM3
OE
WE
CAS
RAS
A9
A8
A7
A6
A5
VSS
A4
A3
A2
A1
A0
VDD
– 52 –
IC601
LB8118M
IC901
RN5RZ33BA-TR
+
–
+
–
–
+
–
+
–
+
–
+
–
+
–
–
+
–
H SLED
FORWARD
REVERSE
DRIVE
FORWARD
REVERSE
DRIVE
H SPINDLE
+
–
+
–
44
43
42
41
40
39
38
37
36
35
34
1
2
3
4
5
7
9
10
H FOCUS
FORWARD
REVERSE
DRIVE
FORWARD
REVERSE
DRIVE
H TRACKING
MAXIMUM
VALUE
MAXIMUM
VALUE
+
–
33
32
31
30
29
28
27
26
1CH/2CH
CHARGE
-OVER
OR
INVERSION
OUTPUT
–
+
+
+
–
+
–
ASP REF
CLUMP+
OFFSET
CLUMP+
OFFSET
+
–
+
–
DEAD
TIME
+
–
+
–
1.2V
6
DEAD
TIME
8
SAWTOOTH
OSCILATION
DEAD
TIME
+
–
11
SW
1.2V
13
14
15
16
17
18
19
20
21
22
VREF
2.7V
EXTERNAL
VOLTAGE
JUDGMENT
FORCED
STARTING
12
0.7V
–
+
+
23
+
–
25
24
STARTING
1.2V
TSD
PWM
ERROR
AMP
1.2V
ERROR
AMP
PWM
ERROR
AMP
PWM
PWM
ERROR
AMP
ERROR
AMP
PWM
PWM
ERROR AMP
IN1
IN2
VOUT1
VCD
CHG DRY
CHG MON
GND
OSC
EXT DRN
VEXT
VEXT-OHG
EXTBASE
CHG-ON
DB1
DB2
VO SET
ASP DRV
VASP
UPBASE
VZ
BO
BI
APC DRV
VAPC
VLD
VOC
S/S
MUTE
SL REF
ASP REF
VOUT2
IN3
IN4
SL MODE
OUT4–
OUT4+
OUT3–
OUT3+
PGND
OUT2–
OUT2+
OUT1–
OUT1+
1CH/2CH
1
2
3
4
5
+
–
VREF
CE
NC
VOUT
VDD
GND
CURRENT
LIMIT
– 53 –
(1)
GENERAL SECTION
SECTION 8
EXPLODED VIEWS
Les composants identifiés par une
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-368-852-01 FOOT
2
3-318-203-71 SCREW(B1.7X5), TAPPING
3
3-033-558-01 HOOK (OPEN)
4
3-033-554-01 KNOB (OPEN)
5
3-934-442-01 SPRING, TENSION
6
3-033-578-01 SPRING (LOCK)
7
3-033-553-01 BUTTON (CD OPEN)
8
X-3377-220-1 LID ASSY, CD
9
3-038-974-01 SHEET (CD)
10
3-033-575-01 PANEL (CD)
11
3-033-572-01 SPRING (CD OPEN)
12
4-356-741-21 SCREW, TAPPING (BIND 2X8)
13
3-033-556-01 COVER
14
X-3378-356-3 SHAFT ASSY
* 15
A-3663-312-A KEY BOARD, COMPLETE
16
X-3377-219-1 CABINET (UPPER) ASSY
17
3-040-690-01 SPRING (LID)
9
8
10
13
14
11
7
6
17
2
1
12
15
5
4
3
12
16
• Abbreviation
CND : Canadian model
JEW : Tourist model
JEW : Tourist model
SP
: Singapore model
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