Sony ICF-CD553RM Service Manual ▷ View online
ICF-CD553RM
13
13
CD SECTION
Perform all CD section check in the test mode.
FOCUS BIAS CHECK
Procedure:
1. Connect the oscilloscope to TP (RF) and TP (VREF) on the
1. Connect the oscilloscope to TP (RF) and TP (VREF) on the
CD board.
2. Set the CD TEST MODE. (Refer to CD TEST MODE (See
page 9))
3. Insert the test disc (YEDS-18). (Part No. 3-702-101-01) (CD)
4. Press the
4. Press the
7
key. (LPC ON)
5. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
6. Press the
7
key. (LPC OFF)
7. Perform confirmation in the same manner as step 5.
8. Press the
8. Press the
s
key.
9. Change the test disc (TCD-W082L). (Part No. J-2502-063-2)
(CD-RW)
10. Perform confirmation in the same manner as step 4 to 7.
• RF signal reference waveform (eye pattern)
Connecting Location:
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
TIME/DIV: 500 ns
CD:
1.1
1.1
±
0.2 Vp-p (LPC ON)
1.1
±
0.3 Vp-p (LPC OFF)
CD-RW:
1.0
1.0
±
0.2 Vp-p (LPC ON)
0.9
±
0.3 Vp-p (LPC OFF)
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
for AC range and raise vertical sensitivity.
TP
(RF)
TP
(TE)
TP
(VREF)
IC701
IC702
– CD BOARD (Conductor Side) –
ICF-CD553RM
14
14
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
(Page 16)
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
IC304
2
M301
M
ICF-CD553RM
15
15
6-2.
BLOCK DIAGRAM – TUNER Section –
24
4
7
20
21
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
T1
AM IFT
LOW-PASS
FILTER
X1
75kHz
XOUT
XIN
AMIN
IF IN
ST
-IND
LP-OUT
LP-IN
FMIN
20
19
11
12
18
6
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
FM/AM
DI
CL
CE
DO
DET
OUT
PD
IF OUT
ST IND
2
3
1
4
10
9
TV
-H
5
13
8
17
16
17
18
16
T1
AM IF
PLL DATA
PLL CLK
PLL CE
COUNT
R-CH
D
TU LCH
(Page 16)
(Page 16)
C
T2
FM/TV/WEATHER
IFT
T2
FM/TV/WEATHER IF
PLL DATA, PLL CLK,
PLL CE, COUNT
• SIGNAL PATH
: FM/TV (2
–
6CH)
: AM
• R-ch is omitted due to same as L-ch.
: TV (7
–
13CH)/WEATHER
TV
-H/WB
MO/ST
7
FM/TV
-L
D1
B.P.F.
BPF1
D13
D15
L1
TV/WEATHER
RF
CT2
D14
L2
FM/TV
RF
RADIO B+
D2
D17
L3
TV/WEATHER
OSC
CT4
D24
L4
FM/TV
OSC
CT3
RADIO B+
RADIO B+
TV (7-13CH)/
WEATHER
ON SWITCH
Q11
RADIO B+
FM/TV (2-6CH)
ON SWITCH
Q12
RADIO B+
SWITCHING
Q13
D21
OSC
BUFFER
Q14
2
FM
RF AMP
FM
MIX
CT2, L1
L2
FM/TV(2 – 6CH)
TRACKING
TV(7 – 13CH)/WEATHER
TRACKING
CT5, L5
AM TRACKING
CT5
D3
(1/2)
L5
AM FERRITE-ROD
ANTENNA
L6
AM VCO VOLTAGE
L6
AM OSC
D3
(2/2)
CT4, L3
CT3, L4
FM/TV(2 – 6CH)
VCO VOLTAGE
TV(7 – 13CH)/WEATHER
VCO VOLTAGE
19
VT B+
LOW-PASS
FILTER
B
ANT
(Page 16)
ICF-CD553RM
16
16
6-3.
BLOCK DIAGRAM – MAIN Section –
+12V
POWER AMP
B+
µ-COM +3.3V
+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
PLL DATA
D651, 652
(LCD BACK LIGHT)
C
TU LCH
(Page 14)
(Page 15)
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 (2
–
6CH)
: TV (7
–
13CH)/WEATHER
SIGNAL PATH
: MESSAGE PLAY
: MIC INPUT
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
(Page 15)
65 RADIO DATA
PLL CLK
66 RADIO CLK
PLL CE
64 RADIO CE
COUNT
63 COUNT
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
V LIN
5
CD LIN
INPUT
SELECT
SWITCH
MIC1
MIC AMP
Q308
BUFFER
Q303
30
27
LIN
AOUT
X301
4.19MHz
XT
18
XT
19
SO
MEMO SO
13
36
SI
14
SK
12
CS
15
BUSY
11
RESET
20
LOGIC
14
SI
13
SC
21
BNFL
20
BOUTL
VOICE MESSENGER
IC303
MEMO SI
37
MEMO SK
35
MEMO CS
34
MEMO BUSY
32 33
MEMO RESET
68
VOL DAT
67
VOL CLK
77
A MUTE
80
TIMER LED
76
RESET
49
AC IN
79
CD ON
78
RADIO ON
FILTER AMP
Q104
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
AC IN
70
SYSTEM CONTROLLER
IC401 (2/2)
D653
TIMER
D401
D402
+5.4V
MOTOR DRIVER
B+
D303
+6V
RADIO/VT
B+
+3.9V
REGULATOR
Q953
+3.3V
REGULATOR
Q954
+5V
REGULATOR
Q951, 952, 955
+6V
REGULATOR
Q956 – 958
CD ON
SWITCH
Q301
RADIO ON
SWITCH
Q302
RECT
D903 – 906
RECT
D901, 902
T901
POWER
TRANSFORMER
(AC IN)
(Page 15)
B
ANT
AC IN
DETECT
Q901
R-CH
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