Printed Wiring Boards And Schematic Diagrams; Waveform - Sony DVP-NS355 Service Manual

DVP-NS355/NS501P/NS507P/NS525P/NS575P/NS585P

4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

THIS NOTE IS COMMON FOR WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block)
For printed wiring boards:
• : indicates a lead wire mounted on the component
side.
• : indicates a lead wire mounted on the printed side.
• a : Through hole.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen
from
(Side A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side B) the parts face are indicated.
• Abbreviation
CA2 : Canada model
PX3 : PX model
MX2 : Mexico model
E32 : Latin model
BR4 : Brazil model
HK2 : Hong Kong model
SP6 : GA model
TW1 : Taiwan model
KR2 : Korea model
EA4 : Saudi Arabia model
ME2 : Middle East model
ME5 : India model
AU2 : Australia model
CN6 : China model
AR2 : Argentina model
U2 : US model
IR2 : Iran model

WAVEFORM

MV-044
For schematic diagrams:
• All capacitors are in µF unless otherwise noted. pF : µµF.
50V or less are not indicated except for electrolytics and
tantalums.
• All resistors are in ohms, 1/4W (Chip resistors : 1/10W)
un-less otherwise specified.
kΩ = 1000Ω, MΩ = 1000kΩ.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum capacitor,
because it is damaged by the heat.
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• : non flammable resistor.
• : fusible resistor.
• : panel designation.
• f : internal component.
• : adjustment for repair.
• : B+ Line.
B+
• : B– Line.
B–
• Circled numbers refer to waveforms.
• Voltages are dc between measurement point.
• Readings are taken with a color-bar signal on DVD refer-
ence disc and when playing CD reference disc.
• Readings are taken with a digital multimeter (DC 10MΩ).
• Voltage variations may be noted due to normal production
tolerances.
Note: Note:
The components identi- Les composants identifiés par
fied by mark or dotted une marque sont critiques
pour la sécurité.
line with mark are criti-
Ne les remplacer que par une
cal for safety.
pièce portant le numéro
Replace only with part
number specified. spécifié.
When indicating parts by reference
number, please include the board
name.
4-3
4-3. WAVEFORM
MV-044 BOARD
1 IC102 6 (CD PB) 4 IC102 wa (DVD PLAY)
1.4V
0.8Vp-p
200ns/div
IC102 6 (DVD PB)
1 5 IC102 oh (CD PB)
0.8Vp-p 0.8Vp-p
200nsec
50ns/div
2 IC102 7 (CD PB) 5 IC102 oh (DVD PLAY)
1.1Vp-p
0.8Vp-p
100nsec
200ns/div
2 IC102 7 (DVD PB) 6 IC201 C/BAR PB
164
0.8Vp-p
0.7Vp-p
50ns/div
63.5us
IC102 qk (CD PLAY)
3 7 IC201 C/BAR PB
166
1.4V
1Vp-p
63.5usec
3 IC102 qk (DVD PLAY) 8 IC201 C/BAR PB
168
1.4V
1V
63.5usec
IC102 wa (CD PLAY) IC201 C/BAR PB
4 9
170
1.4V
1Vp-p
63.5usec
4-4
10 IC201 15 IC201 (DVD PLAY)
172 215 216
0.8Vp-p
0.6Vp-p
50ns/div
63.5usec
IC201
11 173 15 IC201 215 216 (CD PLAY)
0.8Vp-p
0.6Vp-p
200ns/div
63.5usec
12 IC201 16 IC207 1 (CD)
186
1Vp-p
3.3Vp-p
38ns
44.24ns
13 IC201 (CD) 17 IC207 1 (DVD)
203
1.4V
3.3Vp-p
40.71ns
IC201 (DVD)
13 203
1.4V
14 IC201 (CD)
205
1.4V
IC201 (DVD)
14 205
1.4V