Sony CFD-G555CP / CFD-G555CPK Service Manual ▷ View online
21
CFD-G555CP/G555CPK
TUNER SECTION 0 dB = 1
µ
V
• AM Section
Setting:
RADIO BAND•AUTO PRESET button: AM
RADIO BAND•AUTO PRESET button: AM
•
Repeat the procedures in each adjustment several times, and
the tracking adjustments should be finally done by the trimmer
capacitors.
the tracking adjustments should be finally done by the trimmer
capacitors.
•
Remove FM antenna in FM adjustment.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
531 kHz
1,611 kHz
Reading on Digital voltmeter
1.0
± 0.05 V
4.8
± 0.7 V
Adjustment Part
L4
<confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
CT3
621 kHz
1,404 kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
1.3
± 0.3 V
3.0
± 0.2 V
Adjustment Part
<confirmation>
L2
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
87.5 MHz
108 MHz
Adjustment Location: See page 22.
• FM Section
Setting:
RADIO BAND•AUTO PRESET button: FM
RADIO BAND•AUTO PRESET button: FM
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible
modulation by
400 Hz signal
Output level:
as low as possible
Put the loop
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
32
Ω
i
jack (J391)
FM RF signal
generator
75 kHz frequency
deviation by 1 kHz
signal
Output level:
as low as possible
deviation by 1 kHz
signal
Output level:
as low as possible
+
–
–
level meter
set
32
Ω
0.01
µ
F
TUNER board
TP (GND)
TP (GND)
TUNER board
TP-ANT(JW2)
TP-ANT(JW2)
i
jack (J391)
digital voltmeter
TP (CV)
TP (GND)
100 k
Ω
TUNER board
22
CFD-G555CP/G555CPK
Adjustment Location:
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC701 pin 4 and pin qa
(or TP (RF) and TP (VC)).
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the u (CD) button.
4. Confirm that the oscilloscope waveform is as shown in the
3. Press the u (CD) button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
•
RF signal reference waveform (eye pattern)
Test Point:
– CD/MP3 Board (Side B) –
– CD/MP3 Board (Side B) –
RF level :
0.85
0.85
±
0.2 Vp-p
VOLT/DIV : 50 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
and raise vertical sensitivity.
Q701
R701
R702
R703
R704
R705
R706
R707
R708
R709
R711
R
R719
R722
R729
R730
R745
C701
C703
C705
C706
C740
C710
C711
C712
C713
C714
C716
C717
C718
C719
C720
C745
C750
C751
C721
R710
R731
R755
R756
R757
R758
R759
R724
R725
R726
R727
R728
C708
C746
C742
C743
C744
R763
R764
R723
IC7
CNP701
M701
C704
C723
C707
C715
C709
TP
(RF)
TP
(VC)
CD/MP3 board (side B)
L3,CT3
AM TRACKING ADJUSTMENT
AM TRACKING ADJUSTMENT
L1,CT1
FM TRACKNG
ADJUSTMENT
FM TRACKNG
ADJUSTMENT
L2
FM FREQUENCY
COVERAGE
ADJUSTMENT
FM FREQUENCY
COVERAGE
ADJUSTMENT
L4
AM FREQUENCY COVERAGE
ADJUSTMENT
AM FREQUENCY COVERAGE
ADJUSTMENT
TP-ANT
(JW2)
(JW2)
L3
IC1
CT3
CT1
L4
L2
T2
T1
L1
– TUNER BOARD (Component Side) –
TP
(GND)
TP
(CV)
TP-ANT
JW2
– TUNER BOARD (Conductor Side) –
T1
AM IF
ADJUSTMENT
AM IF
ADJUSTMENT
T2
FM IF
ADJUSTMENT
FM IF
ADJUSTMENT
23
23
CFD-G555CP/G555CPK
CFD-G555CP/G555CPK
• Circuit Boards Location
BATTERY2 board
VOL KEY board
POWER board
TRANS board
BATTERY1 board
LCD board
LED1 board
LED2 board
LED3 board
LED4 board
TUNER KEY board
CD KEY board
MIC board
(G555CPK only)
(G555CPK only)
H/P board
TC board
TUNER board
MAIN board
CD/MP3 board
POWER KEY board
(G555CPK only)
(G555CPK only)
SECTION 6
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
H
: adjustment for repair.
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
– CD/MP3 Board –
no mark : CD PLAY
– TUNER Board –
no mark : FM
(
– CD/MP3 Board –
no mark : CD PLAY
– TUNER Board –
no mark : FM
(
) : AM
– TC Board –
no mark : FM
(
no mark : FM
(
) : PB
<
> : REC
[
] : CD PLAY
– MAIN Board –
no mark : FM
<
no mark : FM
<
> : CD PLAY
– Other Boards –
no mark : FM
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: TAPE PLAY
a
: TAPE REC
J
: CD
N
: MIC (G555CPK)
• Abbreviation
AUS
: Australian model.
CND
: Canadian model.
E41
: AC 230 V area in E model.
E92
: AC 120 V area in E model.
MX
: Mexican model.
SP
: Singapore model.
For Printed Wiring Boards.
Note:
•
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
Q
E
Note:
The components identi-
fied by mark
fied by mark
0
or dot-
ted line with mark
0
are
critical for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés
par une marque
par une marque
0
sont cri-
tiques pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ver. 1.1
24
24
CFD-G555CP/G555CPK
CFD-G555CP/G555CPK
6-1. BLOCK DIAGRAM – CD/MP3 SECTION –
A
C
B
F
E
D
A
C
B
D
LD
PD
VR
F
T+
T–
F+
F–
F–
SL+
SL–
SL–
SP+
SP–
E
VREF
LD
PD
LD POWER
CONTROLLER
Q701
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
VREF
RF
10
9
11
80
7
79
4
8
20
17
18
TRACKING
COIL
DRIVE
10
7
FOCUS
COIL
DRIVE
TIN
FIN
25
SLIN
SLED
MOTOR
DRIVE
3
SPINDLE
MOTOR
DRIVE
SPIN
VREF
OPIN
MUTE
T+
T–
12
11
F+
F–
26
27
SL+
SL–
2
1
SP+
SP–
TRACKING
COIL
FOCUS
COIL
OPTICAL PICK-UP BLOCK
(KSS-213C)
M
M
M702
SLED
MOTOR
M701
SPINDLE
MOTOR
SLED/SPINDLE
MOTOR DRIVER,
TRACKING/FOCUS
COIL DRIVER
IC702
S701
(LIMIT)
EFMIN
HFL
AGC
PH(RFENV)
FE
TE
VREF
CONT1
FSEQ
CONT4
DRF
RES
DI
CE
CL
WRQ
DO
XOUT
XIN
LCHO
RCHO
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
CF2
FSX/16MIN
16MOUT
A
3
67
TDD
TD
FD
SP
SL
31
72 25
66
63 61 62
49
48
73
74
75
76
77
78
80
1
2
3
4
5
9
59
58
57
56
55
52
50
65 64
42
45
RF AMP,
SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC701
48
77
72
74 76 75 50 73
78
X701
16.9MHz
CE(CD)
DI(CD)
CL(CD)
WRQ(CD)
RES(CD)
DRF(CD)
FSEQ(CD)
DI(CD)
79
44
49
80
CE(MP3)
70
CL(MP3)
68
69
CMDIN(MP3)
INTB(MP3)
RESB(MP3)
CMDOUT(MP3)
RESB
INTB
CE
CL
CMDIN
CMDOUT
CD-DOOR
CD-ON
21
SYSTEM CONTROLLER
IC801 (1/2)
CD1.8V
CD3.3V
S801
PUSH
OPEN/
CLOSE
D901 –904
F902
CNJ901
T901
POWER
TRANSFORMER
AC IN
Signal Path
:CD
R-ch is omitted due to same as L-ch.
CLV,CAV
CONTROL
PLL
VCEC
SWITCH
ERROR
CORRECTION
AUDIO CD
A/D
CONVERTER,
SERVO
PROCESSOR
FRAME SYNC
DETECT,PROTECT
INSERT
EFM DECODER
INTERPOLATION
MUTE
&
ATTENUATION
DEEMPHASIS
8FS
DIGITAL
FILTER
&
1-bit DAC
LPF
SLICE
LEVEL
CONTROL
GENERAL
PURPOSE
PORT
COMMAND
INTERFACE
INTERFACE
CLOCK
GENERATOR
23
15
FD
SL
SP
TD
VREF
VREF
VREF
R-CH
DATACK
LRSY(I)
79
60
DATA IN
MAIN
SECTION
SECTION
(Page 25)
ADDATA(O)
ADBCK(O)
ADLRCK(O)
CF2IN(I)
WEB
OEB
CASLB
CASUB
RASB
CKOUT(O)
7
54
41 44 43 45 42
16 30 31 29 15
23-30,33-40
60-53,50
18-21,24-28
2-5,7-10,
35-38,40-43
CKIN(I)
CMDOUT
CMDIN
CL
CE
INTB
INTB
RESB
CMDOUT
CMDIN
CL
CL
CE
INTB
INTB
RESB
CD L CH
DRY BATTERY
SIZE " D "
(IEC DESIGNATION R20)
8PCS,12V
D/A
CONVERTER
PH/BH
POWER
CONTROL
Q806,808
+6V
REG
Q972
+3.3V
REG
Q956
+9V
REG
Q971
+6V
REG
Q954
POWER
CONTROL
Q951-953
Q951-953
20
FDD
SPDO
SLDO
21 22 23
+1.8V
REG
IC1003
Q803
AC CHK
REG-CHK
58
PCON
93
6V
U-COM(VDD)
U-COM3.3V
VDD(SW)
3.3V
CD6V
AUDIO 6V
MDATA0
I
MDATA15
MADRS0
I
MADRS8
WE
OE
LCAS
UCAS
RAS
DQ0-DQ15
A0-A8
MP3 DECODER,
CD-ROM DECODER,
ANTI-SHOK
CONTROLLER
IC1001
SDRAM
IC1002
1
3
2
3
+3.3V
REG
IC803
SERIAL
OUT
EXTERNAL
AUDIO IN
Click on the first or last page to see other CFD-G555CP / CFD-G555CPK service manuals if exist.