PRS-505
PRS-505
2
2
2. DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
μ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
speci
fi
ed.
•
f
:
internal
component.
•
C
: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•
A
: B+ Line.
•
B
: B– Line.
•
C
: adjustment for repair.
• Power voltage is dc 5.2V and fed with regulated dc power
supply from TP402 and TP400 on the MAIN board.
• Voltages 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 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
• Signal path.
F
:
AUDIO
L
:
VIDEO
N
:
USB
O
: SD MEMORY CARD/MEMORY STICK DUO
For Printed Wiring Boards.
Note:
•
Y
: Parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Parts face side:
(Conductor side)
Pattern face side:
(Component side)
Parts on the parts face side seen from
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
Note:
The components identi-
fi
ed by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number speci
fi
ed.
Note:
Les composants identi
fi
és
par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spéci
fi
é.
• MAIN board is multi-layer printed board.
However, the patterns of intermediate-layers have not been in-
cluded in diagrams.
• Lead layouts
surface
CSP (Chip Size Package)
Lead layout of conventional IC
*
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.
*
Replacing of IC1001 on the MAIN board used in this
set requires a special tool.
Summary of Contents for PRS-505
Page 52: ...PRS 505 MEMO 52 ...
Page 73: ...MEMO PRS 505 21 ...
