Printed Wiring Boards And Schematic Diagrams - Sony slv-779hf Service Manual

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PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

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THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
(For printed wiring boards)
• b: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Through hole is omitted.
• Circled numbers refer to waveforms.
• There are few cases that the part printed on diagram
isn't mounted in this model.
• Chip parts.
Transistor
C 6 5 4 4 5
B E 1 2 3 3 2
(For schematic diagrams)
• All capacitors are in µF unless otherwise noted. pF : µµF.
50V or less are not indicated except for electrolytics and
tantalums.
• Chip resistors are 1/10W unless otherwise noted.
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, Be-
cause it is damaged by the heat.
• Some chip part will be indicated as follows.
Example
TE
L 13942296513
Kinds of capacitor
Temperature characteristics
• Constants of resistors, capacitors, ICs and etc with XX indicate
that they are not used.
In such cases, the unused circuits may be indicated.
• Parts with differ according to the model/destination.
Refer to the mount table for each function.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
• Signal name
XEDIT → EDIT PB/XREC → PB/REC
• 2 : non flammable resistor
• 1 : fusible resistor
• C : panel designation
• : internal component.
• U : B+ Line.
• V : B– Line.
• Circled numbers refer to waveforms.
• Readings are taken with a color-bar signal input.
• Voltage are dc between ground and measurement points.
• Readings are taken with a digital multimeter (DC10MΩ).
• Voltage variations may be noted due to normal production
tolerances.
• C : adjustment for repair.
• Circled numbers refer to waveforms.
When indicating parts by reference
number, please include the board name.
www
Note :
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
.
specified.
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Diode
6 4 5 1 2 3 3
1 3 2 1 5 4 3 2 1 2
C541 L452
22U 10UH
TA A 2520
External dimensions (mm)
Note :
Les composants identifiés par
x ao
une marque ! sont critiques
y
pour la sécurité.
Ne les remplacer que par une
i
pièce portant le numéro spécifié.
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SECTION 4
8
3
1 2 1
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3 6 7 1 3
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4-1
SLV-772HF/779HF
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9