Sony DVP-NW50 Service Manual ▷ View online
21
DVP-NW50
4. CD Vertical Deviation 1.0 mA check
[TEST DISC]
TCD-731RA (CD) :Part No. J-2501-059-A
Procedure:
1. Turn the power on.
2. Put the test disc (TCD-731RA) into playback the number
2. Put the test disc (TCD-731RA) into playback the number
fifteen track.
3. Play the test disc (TCD-731RA) back and confirm that the
disc is played back normally without any problem.
5. CD Eccentricity 140
µ
m check
[TEST DISC]
TCD-712R (CD) :Part No. J-2501-260-A
Procedure:
1. Turn the power on.
2. Put the test disc (TCD-712R) into playback the number one
2. Put the test disc (TCD-712R) into playback the number one
track.
3. Play the test disc (TCD-712R) back and confirm that the disc
is played back normally without any problem.
6. CD-RW Low Reflection Disc check
[TEST DISC]
TCD-W082L (CD-RW) :Part No. J-2501-063-2
Procedure:
1. Turn the power on.
2. Put the test disc (TCD-W082L) into playback the number one
2. Put the test disc (TCD-W082L) into playback the number one
track.
3. Play the test disc (TCD-W082L) back and confirm that the
disc is played back normally without any problem.
7. CD-RW Finger Print Disc check
[TEST DISC]
TCD-W025W (CD-RW) :Part No. J-2501-284-A
Procedure:
1. Turn the power on.
2. Put the test disc (TCD-W025W) into playback the number
2. Put the test disc (TCD-W025W) into playback the number
thirteen track.
3. Play the test disc (TCD-W025W) back and confirm that the
disc is played back normally without any problem.
8. DVD-Video SL Eccentricity 100
µ
m check
[TEST DISC]
TDV-512C (DVD) :Part No. J-2501-285-A
Procedure:
1. Turn the power on.
2. Put the test disc (TDV-512C) into playback the number one
2. Put the test disc (TDV-512C) into playback the number one
track.
3. Play the test disc (TDV-512C) back and confirm that the disc
is played back normally without any problem.
Checking Location: DVD SERVO board (Side B)
U3
U2
U4
DVD SERVO BOARD
(SIDE B)
5
1
CN1 pin
4
(GND)
R38
R37
TP18
IOP (CD)
Check
Check
IOP (DVD)
Check
Check
RFOP
22
DVP-NW50
SECTION 6
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• 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.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
No mark: DVD PLAY
tolerances.
No mark: DVD PLAY
• 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
: AUDIO (ANALOG)
L
: VIDEO
J
: AUDIO (DIGITAL)
c
: CD PLAY
I
: DVD PLAY
E
: Y
a
: CHROMA
d
: TUNER
: LINE IN
: LINE IN
N
: MIC
Caution:
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.
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.
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.)
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
• Circuit Boards Location
DVD SERVO board
DVD AMP board
MAIN board
FRONT board
MOTOR board
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
• Note
23
23
DVP-NW50
DVP-NW50
6-1. BLOCK DIAGRAM — DVD SERVO SECTION —
96 DVDRFIP
MD
MA
MA
MB
MC
MC
DVDA
DVDB
DVDB
DVDC
DVDD
TNI
TPI
DVDD
TNI
TPI
MDI2
MDI1
MDI1
V2O
IOB
REFCOS
HALLCOS
COSPHI
IOA
COSPHI
IOA
WE
CAS
RAS
CS
CKE
CLK
BA0
LDQM
UDQM
LD01
LD02
126
104
101
101
102
103
99
97
116
115
115
125
124
124
123
17
53
I08
50
72
71
71
70
52
VNFTK
20
VOTK–
16
Q6
Q5
15
RFO
VCC
+5V
RFOP
RFON
FEO
LVL
LVL
IO5
IO6
IO6
47
48
48
IO7 49
6
7
18
19
19
CSO
TEO
DEFECT
HTRC
20
21
23
30
30
V2REFO 15
SCLK
SDEN
SDATA
RST
56
58
59
60
60
DPDMUTE 61
RFIP
RFIN
FEI
RFLEVEL
RFIN
FEI
RFLEVEL
216
215
205
206
206
CSO
TEI
BDO
HRFZC
TEI
BDO
HRFZC
204
203
198
209
209
PWM2VREF
211
SCLK
SDEN
SDATA
SDEN
SDATA
TR IN
TR OUT
LIMIT
LIMIT
SW(CLOSE)
SW(OPEN)
SW(LEADIN)
SW(OPEN)
SW(LEADIN)
197
196
195
195
PRST
188
UP1_5 64
UP1_4 63
IR
UP1_3
71
62
IOWR# 58
11
IOOE#
IOCS#
57
59
59
RD
0-15
RA
0-11
DQM
0,2
Y1
27MHz
SP DATA
V33
UP1-7 67
UP1-6 65
UP1-6 65
SDA
5
SCL
6
YUV2/Y 166
YUV1/C 164
YUV1/C 164
U8
FLASH MEMORY
U6
EEPROM
U3
MPEG & VIDEO PROCESSER
AD0-7
HIGH0-7
IOA0-7
IOA18-20
A16,17
RESET 12
SPDIF 153
BA1
CLK
CLE
CLE
BA0
91
XTALO
186
XTALI
187
103
104
104
118
RCS#
RAS#
RAS#
90
89
CAS#
RWE#
RWE#
88
87
WE
D0-7
D15
A-1
A0-18
AD0-7
A0-20
28 OE
26 CE
V33
V25
+5V
VOFC+
VNFFC
14
VOFC–
13
7
VOLD+
VOLD–
VOLD–
17
18
VCC
VOTK+
3
Fin
4
VOSL–
VOSL+
VOSL+
11
12
26
1
23
6
16
VINTK
28
STBY
VINFC
VINLD
VOSL
ADIN
A0-11
DQ0-15
U7
SDRAM
U4
MOTOR/COIL DRIVER
TRO
FMO
200
13
12
12
DMO
FOO
18
19
PWMOUT2
16
17 18 19 37 38 20
15 39
BA1
21
22-26
29-35
29-35
2,4,5,7,8
10,11,13,42
44,45,47,48
44,45,47,48
50,51,53
78-81,83-86,
93-96,98-101
105-107,110,119
112-114,121-124
31-34
36-39
36-39
22-27
29,30,40,41
43-53
1-9,16-25
45,48
29,31,33
35,38,40
35,38,40
42,44
116,117
LD
DRIVE
LD
DRIVE
Q8
Q12
Q11
Q10
Q1-Q4
VCC
SWITCH
Q9
SLED MOTOR
LOADING MOTOR
SPINDLE MOTOR
DVD MECHANISM
DECK
A
C
D
E
F
LDO2_DVD
LDO1_CD
MD CD
VREF
VR DVD
VR CD
SW PDIC
TRACKING+
TRACKING–
TRACKING–
FOCUS –
FOCUS +
B
U2
CD/DVD RF AMP,
SERVO CONTROLLER
OPTICAL
PICK-UP
BLOCK
Q7
OUT1
1
OUT2
7
U10
MOTOR DRIVER
VIDEO$Y
CVBS
SPDIF$IN
DVD$CE
EEDATA
EECLK
IR
VEDIO$C
A
YUV3/CVBS 168
+3.3V
REG
U9
D2
MAIN(1)
SECTION
(Page 24)
98
100
BUFFER
BUFFER
BUFFER
• Signal Path
: Y
: CD PLAY
: CHROMA
: AUDIO(DIGITAL)
: DVD PLAY
: VIDEO
24
24
DVP-NW50
DVP-NW50
6-2. BLOCK DIAGRAM — MAIN (1) SECTION —
U16
DIGITAL AUDIO RECEIVER
U17
BUFFER
RXO
EGP1004
EGP1005
EGP1006
EGP1007
EG$RESET
EECLK
SPDIF$IN
EEDATA
DVD$CE
EECLK
EEDATA
DVD$CE
2 1A
5 2A
9 3A
12 4A
13 4OE
3
1Y
6
2Y
8
3Y
11
4Y
U8
BUFFER
2 1A
5 2A
9 3A
12 4A
13 4OE
3
1Y
6
2Y
8
3Y
11
4Y
U21
BUFFER
2 1A
5 2A
SCLK
MCLK
LRCK
SCLK
SDATA
TXD ARM
RXD_ARM
LRCK
MCLK
SDOUT
SDIN
7 1OE
3
1Y
6
2Y
U6
BUFFER
2 1A
5 2A
9 3A
12 4A
13 4OE
3
1Y
6
2Y
8
3Y
11
4Y
U27
BUFFER
D5
Q9
Q10
2 1A
5 2A
9 3A
12 4A
13 4OE
3
1Y
6
2Y
8
3Y
11
4Y
U18
BUFFER
2 1A
5 2A
9 3A
12 4A
13 4OE
3
1Y
6
2Y
8
3Y
11
4Y
14
MCLK
8
XTI
10
LRCLK
11
BICLK
12
SDTO
VIDEO$Y
VIDEO$C
CVBS
20
5
19
CSN
CCLK
18 CDTI
17 CDTO
23 PDN
U43
NOISE DETECT
1 1A
12 2Q
U19
BUFFER
12 4A
13 4OE
11
4Y
U23
BUFFER
2 1A
5 2A
MAIN(2)
SECTION
(Page 25)
(Page 25)
AMP
SECTION
(Page 27)
VCXO_PWM
DVD SERVO
SECTION
(Page 23)
(Page 23)
EGP1004
EGP1005
124
87
76
RSTON
EECLK
88 EEDAT
170
FGPIO1
147
EGPIO04
EGP1006
EGP1007
EG$RESET
146
EGPIO05
145
EGPIO06
144
EGPIO06
199
104
HPGI02
RTSN
DTRN
VIDEO
S VIDEO
B
C
Q2
BUFFER
Q5,Q7
BUFFER
Q8
BUFFER
Q6
BUFFER
U34
PROTECTOR
U36
PROTECTOR
U35
PROTECTOR
VIDEO$Y
VIDEO$C
EP$S1_VIDEO
CVBS
J10
J16
4
2
3
1
X2
11.2896MHz
A
• SIGNAL PATH
: AUDIO(DIGITAL)
: CHROMA
: Y
: VIDEO
156
ASDI
107
ABITCLK
154
ARSTN
163
EPGI014
114
TXD1
109
RXD0
110
143
RXD1
EGP1008
ASYNC
89
ASDO
92
U1 (1/3)
SYSTEM CONTROLLER
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