Main Board (Component Side) - Sony PRS-505 Service Manual

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3 7 6 3 1 5 1 5 0
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.
Note:
• Y : Parts extracted from the conductor side.
• : internal component.
f
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Parts face side: Parts on the parts face side seen from
(Conductor side) the pattern face are indicated.
Pattern face side: Parts on the pattern face side seen from
(Component side) the parts face are indicated.
• MAIN board is multi-layer printed board.
However, the patterns of intermediate-layers have not been in-
cluded in diagrams.
* Replacing of IC1001 on the MAIN board used in this
set requires a special tool.
• Lead layouts
Lead layout of conventional IC CSP (Chip Size Package)
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
PRS-505
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1 / W or less unless otherwise
4
specifi ed.
• : internal component.
f
• C : panel designation.
Note: Note:
The components identi- Les composants identifi és
fi ed by mark 0 or dotted par une marque 0 sont
line with mark 0 are criti- critiques pour la sécurité.
cal for safety. Ne les remplacer que par
Replace only with part une piéce portant le nu-
number specifi ed. méro spécifi é.
• A : B+ Line.
• B : B– Line.
• C : adjustment for repair.
• Power voltage is dc 5.2V and fed with regulated dc power
surface
supply from TP402 and TP400 on the MAIN board.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : POWER ON
( ) : AUDIO PLAY
* : Impossible to measure
(For this model, the voltage is produced only when the
screen is changed. Under the power on, there is a voltage
that is not produced.)
• Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: AUDIO
F
: VIDEO
L
: USB
N
: SD MEMORY CARD/MEMORY STICK DUO
O
* Replacing of IC1001 on the MAIN board used in this
set requires a special tool.
• The voltage and waveform of CSP (chip size package) cannot be
measured, because its lead is different feom that conventional
IC.
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http://www.xiaoyu163.com
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• Waveforms
– MAIN Board –
IC107
(Audio play mode)
89 ns
2 V/DIV, 50 ns/DIV
IC953 (XO)
C
(USB connection state)
55.2 ms
1 V/DIV, 20 ms/DIV
IC1001 (XTAL32K)
K
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3 7 6 30.6 s 3
200 mV/DIV, 10 s/DIV
IC801 (X2)
30.8 s
1 V/DIV, 20 s/DIV
IC801 (OSC2)
204 ns
1 V/DIV, 100 ns/DIV
u 1 6 3
.
15 15
2 4
9 9 8
3.6 Vp-p
2.2 Vp-p
0.6 Vp-p
1 5 1 5 0 8 9 2 4
2.2 Vp-p
3.1 Vp-p
m
c o
PRS-505
2
9 9
9 8 2 9 9