Sony ICF-CD555TV Service Manual ▷ View online
ICF-CD555TV
21
21
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD Section –
A
B
D
F
E
C
I-V AMP
DETECTOR
12
11
17
18
27
SL+
SL–
F–
F+
T+
T–
SPINDLE
MOTOR DRIVE
M702
(SPINDLE)
SLED
MOTOR DRIVE
26
M701
(SLED)
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SP+
SP–
3
25
9
19
FIN
TIN
SLIN
SPIN
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC702
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-900AAA)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
2
1
M
M
7
MUTE
AUTOMATIC
POWER
CONTROL
Q701
8
FIN2
7
FIN1
+
MIX
4
RF
LPF
EQ
PH
BH
10
TIN2
9
TIN1
A/D
SW
LPF
TRACK
JUMP
TBAL
80
LDD
APC
AUDIO
ADJUST
SERVO
PROCESSOR
RUPTURE
DETECT
79
LDS
SW
AGC
D/A
13
FE
15
TE
20
TDO
21
FDO
23
SLDO
22
SPDO
S/H
3
EFMIN
SLISE LEVEL
CONTROL
ERROR
CORRECTION
AUDIO CD
RAM
8FS
DIGITAL
FILTER
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
1 BIT
DAC
42
LCHO
RCHO
LPF
DOUT
AUDIO
OUT
FSEQ
PLL
VCEC
CLV, CAV
CONTROL
FRAME SYNC
DETECT,
PROTECT, INSERT,
EFM DECODE
31
RAM
DRF
67
25
CONT4
72
CONT1
66
∗
RES
65
∗
WRQ
61
CE
62
CL
63
DI
64
DO
RF AMP, FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR, CLV SERVO,
DIGITAL FILTER, D/A CONVERTER
IC701
53 CD DATA IN
54 CD DATA
55 CD CLK
56 CD CE
50 WRQ
58 XRST
42 CD CLOSE DET
57 DRF
39 FSEQ
A
SYSTEM
CONTROLLER
IC401
(1/2)
R-CH
GENERAL PURPOSE
PORTS
COMMAND
INTERFACE
INTERFACE
DRF
XOUT
XIN
X701
16.9344MHz
CD LCH
PD1
PD2
F
E
LD
PD
T+
T–
F+
F–
When the optical pick-up
is inner position
is inner position
ON :
CD TRAY
CLOSE DETECT
S701
(LIMIT)
S702
61 CD OPEN DET
CD TRAY
OPEN DETECT
CD TRAY
OPEN/CLOSE
S703
45
39
CLOCK
GENERATOR
48
49
• SIGNAL PATH
: CD PLAY
• R-ch is omitted due to same as L-ch.
8 A OUT
B OUT
A IN
B IN
7
51 CD CLOSE
CD OPEN
60
3
CD TRAY OPEN/CLOSE
MOTOR DRIVE
IC305
2
M301
M
(Page 24)
ICF-CD555TV
22
22
6-2.
BLOCK DIAGRAM – TUNER Section –
2
24
4
7
20
21
FM
RF AMP
FM
MIX
FM
OSC
FM IF
AMP
IF
BUFFER
AF
BUFFER
AF
AMP
MPX
MUTE
STEREO/
MONO,
FM/AM
FM/AM
AM IF
AMP
FM
DET
AM
DET
DET
6
FM
RF IN
RF IN
22
AM
RF AMP
AM
MIX
AM
RF IN
RF IN
MIX OUT
OSC
OUT
CF2
FM/AM PLL
IC2
CF4
FM
RF OUT
RF OUT
10
QUAD
FM
IF IN
IF IN
12
15
11
L-OUT
MPX
IN
IN
R-OUT
13
AM
IF IN
IF IN
LPF1/BAND
AM OSC
FM OSC
FM/AM RF AMP, MIX, OSC,
FM/AM IF AMP, DET, MPX
IC1
L2
FM VCO VOLTAGE
L4
AM VCO VOLTAGE
CT1, L1
FM TRACKING
CT3, L3
AM TRACKING
T1
AM IFT
LOW-PASS
FILTER
LOW-PASS
FILTER
• SIGNAL PATH
: FM
: AM
X1
75kHz
CT3
L1
FM RF
XOUT
XIN
AMIN
IF IN
ST
-IND
LP-OUT
LP-IN
FMIN
20
19
11
12
18
FM/AM
6
CT1
D1
L4
AM OSC
L2
FM OSC
LEVEL
DET
ST
IND
14
LPF2/MO-ST
AM
OSC
BUFFER
BUFFER
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
BAND
DI
CL
CE
DO
DET
OUT
PD
IF OUT
ST IND
2
3
1
4
10
9
BAND
7
MO/ST
13
8
17
16
17
18
16
19
D2
D3
(1/2)
D3
(2/2)
T1
AM IF
• R-ch is omitted due to same as L-ch.
PLL DATA
PLL CLK
PLL CE
COUNT
R-CH
D
TU LCH
C
T2
FM IFT
T2
FM IF
L3
AM FERRITE-ROD
ANTENNA
VT B+
PLL DATA, PLL CLK,
PLL CE, COUNT
B
ANT
(Page 24)
(Page 24)
(Page 24)
ICF-CD555TV
23
23
6-3.
BLOCK DIAGRAM – MONITOR Section –
PHASE
COMPARATOR
IC1651
OSD DRIVER
IC1551
RGB DECODER
IC1501
VR
DATA
OSC OUT
CTRAPOUT
R-OUT
G
POL
VD
CTRAPIN
CSYNCOUT
LCD CONTROLLER
IC1601
PD
STV1
VGON (17V)
RED
VCOM
VCOM
GREEN
VGH17V
LIQUID CRYSTAL
DISPLAY MODULE
LCD1
BUFFER
Q1501
SYNC DET
Q1502, 1503
SDATA
VXO-NTSC
EEPROM
IC1451
HD
VD
R
B
G
BLUE
B
R
HD
OSC
TRAP
RV1651
PLL
RV1551
V COM
X1501
3.579545MHz
SDA
SCL
VHF/UHF
TV ANT
25
13
L OUT
16
DET OUT
4
SDA
24
R OUT
R-CH
12
R
AUDIO
L
JK301
INPUT
VIDEO
R-CH
11
14
3
5
9
4
R-CH
MUTING
Q104
D104
VIDEO AMP
Q350
52
54
26
VCOMOUT 28
G-OUT 21
B-OUT 19
R-IN2 14
VDIN
35
YIN
57 CIN
46
34
HDOUT 32
CSYNCIN
SYNC
SEPARATOR
Q1504, 1505
Q1504, 1505
63
53
16
VG
G-IN2 15
17
VB
B-IN2 16
18
BLK
POL
YS 17
15
HSYNCIN
20
36
BLAK
BLAK
18
7
OSC IN 8
VDOUT 31
VSYNCIN
19
3
SCLK
1
CSN
2
33
VCO1
36
HSYNCIN
2
VDBIN
5
BLAK
BLACK
8
POL
POL
14
VCO0
37
12
ZOOM
ZOOM
JUST
SIDE1
SIDE2
31
JUST
4
SIDE1
3
61 62 63
OSD-DATA
OSD-CLK
OSD-CS
54 55 53
SDA
SCL
HSYNCLOCK
66
T-A MUTE
34
TV/VIDEO
77
67
65
VSYNC
52
EEPROM-SDA
49
X1
74
64
SIDE2
20
STV1
STV2
26
STV2
STH1
23
STH1
STH2
24
STH2
CLK1
29
CPH1
CLK2
27
CPH2
CLK3
25
CPH3
CPV
16
CPV
OEV1
19
OEV1
OEV2
18
OEV2
OEV3
17
OEV3
CPV
21
OEH
V COM BIAS
Q1551 – 1553
V COM AMP
IC1552
VDD (3.3V)
VDD3V
VEE (5.0V)
VB (2.5V)
VEE5V
VSS (–13.0V)
VSS–13V
48
SCLK
47
HSYNCLOCK
39
F
TV LCH
G
MONITOR ON
9
9V (MPX)
32 T-SDATA
3
SCL
33 T-SCL
15
AFT OUT
46 T-AFT
37 TFT OPEN
56 TV DATA-SI
13
RF AGC
30 T-AGC
22
MUTE
31 T-MUTE
AGC
Q502
20
MODE
78 T-MODE
AUDIO MODE
SELECT SWITCH
Q503
21
F MONO
79 T-FMONO
57 TV DATA-SO
AUDIO MODE
SELECT SWITCH
Q504
+9V
2
5V (TU)
14
5V (F)
26
5V (D/D)
TV+5V
TU501
TV TUNER UNIT
5
EEPROM-SCL
50
X2
75
6
X1401
4.19MHz
S701
DISPLAY
RELEASE
LATCH
SDATA
58 TV DATA-CLK
SCK
76 RESET
RESET
E
SDATA, SCK,
LATCH, RESET
LATCH, RESET
: AUX IN (AUDIO)
: TV
: VIDEO
SIGNAL PATH
: AUX IN (VIDEO)
R-CH : R-ch is omitted due to same as L-ch.
TV/VIDEO
SELECT SWITCH
IC304
80
MONITOR ON
H
TFT-ON
60
TFT-ON
TV SYSTEM CONTROLLER
IC1401
(Page 24)
(Page 24)
(Page 24)
(Page 24)
ICF-CD555TV
24
24
6-4.
BLOCK DIAGRAM – MAIN Section –
+12V
POWER AMP
B+
µ-COM +3.3V
+3.3V
TV
µ-COM +3.3V
+5V
CD +3.3V
CD +6V
R-CH
SP101
(L-CH)
(L-CH)
SEG0 – SEG21
LIQUID CRYSTAL DISPLAY
LCD651
10 – 31
COM0 – COM3
6 – 9
S618 – 620
PLL DATA
D651, 652
(LCD BACK LIGHT)
C
TU LCH
F
TV LCH
INPUT SELECT SWITCH,
ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC302
VOLUME
CONTROL
7
4
AGC
Q202
R-CH
R-CH
D102
+
+
MUTING
Q103
MUTING CONTROL
SWITCH
Q304
R-CH
LED DRIVE
Q651
REMOTE CONTROL
RECEIVER
IC651
RESET SIGNAL
GENERATOR
IC402
: CD PLAY
: FM
: TV
SIGNAL PATH
R-CH : R-ch is omitted due to same as L-ch.
R LIN
D
PLL DATA, PLL CLK,
PLL CE, COUNT
PLL CE, COUNT
65 RADIO DATA
PLL CLK
66 RADIO CLK
PLL CE
64 RADIO CE
COUNT
63 COUNT
SDATA
E
SDATA, SCK,
LATCH, RESET
LATCH, RESET
33 TV DATA SO
SCK
34 TV DATA SCK
LATCH
35 TV DATA SI
RESET
36 RESET
SURROUND
CONTROL
TONE
CONTROL
1
V LIN
SEL L
A
CD LCH
17
L OUT
L IN
L OUT
12
3
SP201
(R-CH)
NF L
13
9
TV LIN
5
CD LIN
INPUT
SELECT
SWITCH
LOGIC
14
SI
13
SC
21
BNFL
20
BOUTL
68
VOL DAT
67
VOL CLK
77
A MUTE
80
TIMER LED
76
RESET
49
AC IN
79
CD ON
32
TV POWER ON
78
RADIO ON
LINE AMP
Q101
POWER
AMP
52
BUZZER
59
POWER ON
8
STBY
STANDBY
SWITCH
Q305
POWER AMP
IC301
D203
48 RC
43 KEY3
S612 – 617
44 KEY2
S606 – 611
45 KEY1
S601 – 605
46 KEY0
40 ENCODER+
41 ENCODER–
SIRCS
BUFFER
Q401
ROTARY
ENCODER
S651
X401
4.19MHz
X2
75
X1
74
X402
32.768kHz
XT2
71
XT1
70
SYSTEM CONTROLLER
IC401 (2/2)
D653
TIMER
D401
D402
D1401,
1402
+5.4V
MOTOR DRIVER
B+
D303
+6V
RADIO/VT
B+
+3.9V
REGULATOR
IC903
+3.3V
REGULATOR
Q954
+5V
REGULATOR
Q951, 952, 955
+6V
REGULATOR
Q956 – 958
CD ON
SWITCH
Q301
TV ON
SWITCH
Q403, 404
RADIO ON
SWITCH
Q302
RECT
D903 – 906
RECT
D901, 902
RECT
D912 – 918
RECT
D908 – 911
T901
POWER
TRANSFORMER
(AC IN)
B
ANT
G
MONITOR ON
AC IN DETECT
Q901
R-CH
+9V
REGULATOR
IC901
TV ON
SWITCH
Q959, 960
+7.5V
+9V
D1953,
1954
REGULATOR
Q1903
B+ SWITCH
Q1801, 1802
B+ SWITCH
Q1905, 1906
REGULATOR
Q1803, 1804
Q1803, 1804
+5V
REGULATOR
IC1901
+3.3V
REGULATOR
IC1903
VDD3.3V
VEE5V
T1801
INBERTER
TRANSFORMER
OSC
Q1805, 1806
BACK LIGHT
UNIT
+5V
REGULATOR
IC902
TV ON
SWITCH
Q501, 505
+17V
REGULATOR
Q1902
–13V
REGULATOR
Q1902
B+ SWITCH
Q1911, 1912
H
TFT-ON
B– SWITCH
Q1909, 1910
POWER ON/OFF
CONTROL SWITCH
Q1913
TV +5V
VGH17V
VSS–13V
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