Sony LX50 - Manual (Page 35)

4-1
SECTION 4
PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
SLV-LX40/LX50/LX60S/LX70S
(For printed wiring boards)
•
: 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.
(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.
k Ω=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 C541 L452
22U 10UH
TA A 2520
• 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
• : non flammable resistor
• : fusible resistor
• : panel designation
• : internal component.
• B + : B+ Line.
• B – : 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 (DC10M
Ω).
• Voltage variations may be noted due to normal production
tolerances.
• : adjustment for repair.
• Circled numbers refer to waveforms.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Transistor Diode
Kinds of capacitor
Temperature characteristics
External dimensions (mm)
When indicating parts by reference
number, please include the board name.
Note :
The components identified by
mark ! or dotted line with mark
! are critical 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.
C
B E
5 6 4
2 1 3
5 4 6
2 3 1
4 5
2 3 1
1 2
4 5 3
3
2 1
3
2 1
3
2 1