Sony DVP NS725P - Progressive-Scan DVD/CD Player, Руководство по обслуживанию

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DVP-NS325/NS330/NS333/NS430/NS433/NS530/NS725P/NS730P
4-3 4-4
For printed wiring boards:
•
: indicates a lead wire mounted on the compo-
nent 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.)
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.
k
Ω
= 1000
Ω
, M
Ω
= 1000k
Ω
.
• 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– Line.
• 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 10M
Ω
).
• Voltage variations may be noted due to normal production
tolerances.
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.
When indicating parts by reference
number, please include the board
name.
Note:
The components identi-
fied by mark
or dotted
line with mark are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
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)
• Abbreviation
US
: USA model
CND : Canadian model
PX
: PX model
E: Latin America
MX
: Mexico model
BR : Brazilian model
AR : Argentina model
HK : Hong Kong model
SP : Malaysia, Thai, Philippine, Indonesia, Vietnam models
TW : Taiwan model
KR : Korea model
EA : Saudi Arabia model
ME2 : Middle East model
ME5 : India, Pakistan, Morocco models
AUS : Australian model
CN
: Chinese model
UK : UK model
RUS : Russian model
AE1
: AEP model
AE2 : AEP model
B+
B–