Schematic Diagrams And Printed Wiring Boards - Sony DSLR-A500 Service Manual
Digital single lens reflex camera
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- Instruction manual (178 pages) ,
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THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS.
(In addition to this, the necessary note is printed in each block.)
For Schematic Diagrams
• All capacitors are in µF unless otherwise noted. pF : µ
µF. 50 V or less are not indicated except for electrolytics
and tantalums.
• Chip resistors are 1/10 W unless otherwise noted.
kΩ=1000 Ω, MΩ=1000 kΩ.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum capaci-
tor, Because it is damaged by the heat.
• Some chip part will be indicated as follows.
Example
C541
L452
22U
10UH
TA A
2520
Kinds of capacitor
External dimensions (mm)
Case size
• 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
•
: B+ Line
•
: B– Line
•
: IN/OUT direction of (+, –) B LINE.
•
: adjustment for repair.
Precautions for Replacement of Imager
• If the imager has been replaced, carry out all the adjustments
for the camera section.
• As the imager may be damaged by static electricity from its
structure, handle it carefully like for the MOS IC.
In addition, ensure that the receiver is not covered with dusts
nor exposed to strong light.
When indicating parts by reference
number, please include the board name.
The components identified by mark
or dotted line with mark
are critical
for safety.
Replace only with part number specified.
Les composants identifiés par une
marque
sont critiques pour la sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
DSLR-A500/A550_L3
6. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
– ENGLISH –
For Printed Wiring Boards
•
: Uses unleaded solder.
•
: Circuit board
: Flexible board
Pattern from the side which enables seeing.
: pattern of the rear side
(The other layers' patterns are not indicated)
• Through hole is omitted.
• There are a few cases that the part printed on diagram
isn't mounted in this model.
•
: panel designation
• Chip parts.
Transistor
Diode
C
6
5
4
4
5
6
5
4
4
5
3
3
3
B
E
1
2
3
3
2
1
1 2
3
3
2
1
2
1
2
1
2
1
1
2
2
1
3
2
4
3
3
4
6
5
4
5
4
3
3 4
5
4
1
1
2
2
1
1
2
3
3
2
4
1
1
2
3
6
5
4
4
5
6
3
2
1
6-1
– JAPANESE –
C
6
5
4
4
5
6
5
4
4
5
3
3
3
B
E
1
2
3
3
2
1
1 2
3
3
2
1
2
1
2
1
2
1
1
2
3
2
4
3
3
4
6
5
4
2
1
5
4
3
4
1
1
2
3
3 4
5
1
2
2
1
3
2
4
1
1
2
3
6
5
4
4
5
6
3
2
1
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