Sony HCD-XGV10AV / HCD-XGV6 / HCD-XGV8 / LBT-XGV10AV / LBT-XGV6 / LBT-XGV8 Service Manual ▷ View online
21
HCD-XGV6/XGV8/XGV10AV
CD SECTION
Note :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use LUV-P01 (4-999-032-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10M impedance.
4. Clean the object lens by an applicator with neutral detergent
3. Use an oscilloscope with more than 10M impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
following checks.
S-Curve Check
BD board
Oscilloscope
TP(FE)
TP(DVC)
TP(DVC)
Procedure :
1. Connect oscilloscope to TP (FE).
2. Connect between TP (FE) and TP (DVC ( 1.65 V)) by lead wire.
3. Press the \/1 button to turn the power ON.
4. Load a disc (LUV-P01) and actuate the focus search. (In conse-
1. Connect oscilloscope to TP (FE).
2. Connect between TP (FE) and TP (DVC ( 1.65 V)) by lead wire.
3. Press the \/1 button to turn the power ON.
4. Load a disc (LUV-P01) and actuate the focus search. (In conse-
quence of open and close the disc tray, actuate the focus search)
5. Confirm that the oscilloscope waveform (S-curve) is symmetri-
cal between A and B. And confirm peak to peak level within 2
±0.5 Vp-p.
±0.5 Vp-p.
symmetry
S-curve waveform
within 4
±
1Vp-p
A
B
6. After check, remove the lead wire connected in step 2.
Note :
• Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
TP(RFDC)
TP(RFAC)
TP(RFAC)
BD board
oscilloscope
Procedure :
1. Connect oscilloscope to TP (RFDC) and TP (RFAC).
2. Press the \/1 button to turn the power ON.
3. Load a disc (LUV-P01) and playback.
4. Confirm that oscilloscope waveform is clear and check RF
1. Connect oscilloscope to TP (RFDC) and TP (RFAC).
2. Press the \/1 button to turn the power ON.
3. Load a disc (LUV-P01) and playback.
4. Confirm that oscilloscope waveform is clear and check RF
signal level is correct or not.
Note:
Clear RF signal waveform means that the shape “
◊
” can be
clearly distinguished at the center of the waveform.
VOLT/DIV : 200mV
TIME/DIV : 500ns
TIME/DIV : 500ns
level : 1.45
±
0.3Vp-p
E-F Balance (1 Track jump) Check
TP(TE)
TP(DVC)
TP(DVC)
BD board
oscilloscope
Procedure:
1. Connect oscilloscope to TP (TE) and TP (DVC) board.
2. Press the \/1 button to turn the power ON.
3. Load a disc (LUV-P01) and playback the number nine track.
4. Press the bB button. (Becomes the 1track jump mode.)
5. Confirm that the level B and A (DC voltage) on the oscilloscope
1. Connect oscilloscope to TP (TE) and TP (DVC) board.
2. Press the \/1 button to turn the power ON.
3. Load a disc (LUV-P01) and playback the number nine track.
4. Press the bB button. (Becomes the 1track jump mode.)
5. Confirm that the level B and A (DC voltage) on the oscilloscope
waveform.
B=1.3
±
0.6Vp-p
symmetry
A (DC voltage)
center of
waveform
waveform
B
0V
Specified level:
×
100=less than – 22%
B
A
Checking Location:
[BD BOARD]
DVC
RFDC
RFAC
TE
FE
SE
DVC
22
HCD-XGV6/XGV8/XGV10AV
VIDEO SECTION
Note :
1. VIDEO board is basically designed to operate without adjust-
ment. Therefore, check each item in order given.
2. Use HLX-504 (J-6090-088-A) or HLX-505 (J-6090-089-A)
unless otherwise indicated.
3. Use an oscilloscope with more than 10M
Ω
impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
following checks.
Video Level Adjustment (VIDEO BOARD)
Purpose
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
Purpose
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
Procedure:
1. Connect oscilloscope to VIDEO output.
2. Load a disc (HLX-504 or HLX-505) playback.
3. Adjust the RV501 to attain 1.0±0.1Vp-p.
1. Connect oscilloscope to VIDEO output.
2. Load a disc (HLX-504 or HLX-505) playback.
3. Adjust the RV501 to attain 1.0±0.1Vp-p.
J721
VIDEO OUTPUT
VIDEO OUTPUT
75
Ω
Oscilloscope
set
1.0
±
0.1 Vp-p
(WHITE 100%)
VIDEO BOARD (SIDE A)
IC508
IC505
RV501
VIDEO LEVEL
CN301
CN101
23
23
HCD-XGV6/XGV8/XGV10AV
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
(The other layers´ Patterns are not indicated.)
• Indication of transistor.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
BD board section
no mark: CD PLAY
Other board section
no mark: TUNER (FM/AM)
( ): TAPE PLAY
< >: TAPE REC
[ ]: CD PLAY
BD board section
no mark: CD PLAY
Other board section
no mark: TUNER (FM/AM)
( ): TAPE PLAY
< >: TAPE REC
[ ]: CD PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
E
: TAPE PALY (DECK A)
d
: TAPE PALY (DECK B)
G
: RECORD
J
: CD PALY (ANALOG OUT)
N
: MIC INPUT
g
: VIDEO
Note:
The components identified by mark
The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
SECTION 7
DIAGRAMS
7-1. CIRCUIT BOARD LOCATION
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q
PANEL FL board
TRANS board
SUB TRANS board
MAIN board
PA board
PROLOGIC board
(XGV10)
SUB AMP board
(XGV8/XGV10)
(XGV8/XGV10)
TC-B board
HEADPHONE board
FRONT INPUT board
CD-R board
CD-L board
MIC/GUITAR board
TC-A board
PANEL VR board
TUNER PACK
(FM/AM TUNER UNIT)
(FM/AM TUNER UNIT)
VIDEO board
SENSOR board
D-SW board
MOTOR board
LED board
BD board
• Abbreviation
SP
: Singapore model
TH
: Thai model
EA
: Saudi Arabia model
• Abbreviation
SP
: Singapore model
TH
: Thai model
EA
: Saudi Arabia model
24
24
HCD-XGV6/XGV8/XGV10AV
7-2. BLOCK DIAGRAMS
– CD SERVO SECTION –
VO1-
VO1+
4
3
11
10
1
27
26
32
31
35
34
1
2
5
10
E
B
C
D
A
PD1
PD2
I1-6
I5-10
LD
PD
CD D+5V
F
A
B
C
D
RF
SUMMING
AMP
∑
A-D
FOCUS
ERROR AMP
COLOR
BURST
RF EQ
AMP
DC
AMP
VDC
BUFFER
TRACKING
ERROR AMP
RFAC
AC_SUM
EQ_IN
RFDCO
RFDCI
FE
FEI
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
TE
VDC
E
F
F I-V AMP
E I-V AMP
LD
DRIVE
Q101
APC LD
AMP
APC PD
AMP
LD
LD
PD
LASER DIODE
IN3+
IN4
VREF
IN3-
VO3+
VO3-
IN2+
T+
T-
F+
F-
IN2-
IN1+
IN1-
8
STBY
DATA DECODERR,
D/A CONVERTOR
IC506
HUE CONTROL
IC303
SHARPNESS
CONTROL
IC304
VIDEO AMP
IC307
LPF
IC102
D/A
CONVERTOR
IC504
SYNC
DETECT
IC301
DELAY
IC302
SDRAM
IC507
ROM
IC508
VO4+
VO4-
M101
SPINDLE
MOTOR
MOTOR
DRIVE
MOTOR
DRIVE
COIL
DRIVE
VO2-
VO2+
COIL
DRIVE
M
M
M102
SLED
MOTOR
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
TRACKING
COIL
S101
(LIMIT)
ON: when the optical pick-up
is inner position.
FOCUS
COIL
OPTICAL PICK-UP BLOCK
(A-MAX.3)
SW
PD
TE
LD-ON
FE
RFDC
I-V AMP
56
55
47
52
Q102
RFC
DI
CLK
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
WE
CAS
RAS
BA0
CLK
LDQM
UDQM
SI
SO
SCK
SRQ
SOK
SCS
RST
SYS RST
NVOEL
CSIA
C
Y
CPSIG
AUDLRCK
MCLK
LAT
CLK
BLK
LRCK
LOUT
CD-L
R-CM
VCD-VIDEO
VCC
A+5V
(5W)
+2.5V
VDD
ROUT
DATA
DATA
VRF
RV501
AUDDTO0
AUDLRCK
AUDBCK
GPIO11
DRDQM1
DRDQM0
DRCK
DRBS
DRRAS
DRCAS
DRWEL
8-15
0-7
0-15
RST
RST
DATA
HUE
SHARPNESS
CLK
GPIO14
SSTP
FRDR
FFDR
TRDR
TFDR
SRDR
SFDR
VC
CE
DE
VIN
BGP
TINT
VOUT
SE
TE
FE
RFDC
RFAC
XTSL
MDP
GPIO9
XTAO
XTAI
CLKB
CLKA
GPIO13
GPIO12
LD
X501
33.8688MHz
X502
27MHz
A0-A9
DRDAT0
I
DRDAT15
DRADR0
I
DRADR10
DQ0-DQ15
A0-A16 DQ0-DQ7
CONTROL
I/F
DIFF
CONTROL
AMP
Y/C MIX
BUF
IN
STB
OUT
+4.5V
(IC103)
+2.5V
D+5V
(SW)
+3.3V
PC
CONT
V_OUT
SYNC
OUT
V_IN
THRU
VIDEO
IN
BAFFER
Q301
+3.3V
REG
Q581
BUFFER
Q302
SYNC
SEPA
+
SQ-DATA
SQ-CLK
V-MUTE
CD-DATA
XLT
CD-CLK
SCOR
HOLD
XRST
RST
SRQ
SCS
SOK
SCK
SO
SI
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (1/4)
CD-DSP,
DIGITAL SERVO,
MPEG DECODER, DAC
IC505
MTR-CTRL1
MTR-CTR2
M
TABLE MOTOR DRIVER
IC201
OUT2
OUT1
IN2
IN1
M201
(TABLE)
DISC TABLE
SENSOR
IC202
BU UP/DW SW
S201
(UP SWITCH)
TBL-SENS
MOTOR
DRIVE
49
48
45
44
LED-DISK 47
1
9
3
7
LED DRIVE
Q201
D201
(DISC No.)
Q412
Q411
Q370
DAC
DAC
(Page 26)
A
(Page 26)
G
RIPPLE FILTER
Q201
+2.5V REG
IC201
+3.3V REG
IC202
(
(
VIDEO LEVEL
6
7
8
9
15
26
16
18
12
14
2
28
29
17
23
22
5
9
3
4
13
2
6
12
11
135
143
142
141
140
138
137
165
161
133
189
24
150
149
207
206
164
160
173
3
16
15
14
13
2
3
1
7
8
5
6
5
3
7
1
201
204
203
26
205
162
163
10
30
29
28
13 14 15 16 18 19
16
73
68
72
76
70
77
78
74
7
6
1
5
6
8
10
6
3
1
10
2
8
3
1
6
5
5
1
33
24
17 18 20 38 15 39
81
AO4
AO6
AO3
AO5
AO2
AO1
RST
2,4,5,7,8,10,11,13,
42,44,45,47,48,50,51,53
42,44,45,47,48,50,51,53
2-12,23,
25-31
25-31
13-15,
7-21
7-21
34-37,
29-34
29-34
34-37,
39-45
39-45
49-56,
59-66
59-66
35
40
36 37
19
32
43
1
3
• R-ch is omitted due to same as L-ch.
• Signal Path
• Signal Path
: CD PLAY (ANALOG)
: VIDEO
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