Sony HBD-E770W Service Manual page 34

HBD-E770W
Q Q
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:
• X : Parts extracted from the component side.
• 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:
Pattern face side: Parts on the pattern face side seen
(Conductor Side) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• MAIN and MB-134 boards are multi-layer printed board.
However, the patterns of intermediate-layers have not
been included in this diagrams.
• Indication of transistor.
C
Q These are omitted.
B E
Q
B C E
These are omitted.
• Lead layouts
surface
T E
L 1 3 9 4 2 2 9 6 5 1 3
Lead layout of conventional IC CSP (Chip Size Package)
Note 1: When the MAIN board is replaced, spread the compound
referring to "NOTE OF REPLACING THE IC3100 AND
IC3200 ON THE MAIN BOARD AND THE COMPLETE
MAIN BOARD" on servicing notes (page 8).
Note 2: When the POWER board is replaced, spread the compound
referring to "NOTE OF REPLACING THE D913, D931,
IC901 AND IC921 ON THE POWER BOARD AND THE
COMPLETE POWER BOARD" on servicing notes (page 9).
w w w
HBD-E770W
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 1/4 W or less unless otherwise
specifi ed.
• : internal component.
f
• 2 : nonfl ammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
– MB-134 board –
no mark : BD PLAY
* : Impossible to measure
– Other board –
no mark : TUNER
: Impossible to measure
*
• 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.
F : AUDIO
: VIDEO
E
: DISC PLAY
J
: USB
L
: LAN
d
: TUNER
f
: MIC
N
• The voltage and waveform of CSP (chip size package)
cannot be measured, becaise its lead layout is different
from that of conventional IC.
Note 1: When the MAIN board is replaced, spread the compound
referring to "NOTE OF REPLACING THE IC3100 AND
IC3200 ON THE MAIN BOARD AND THE COMPLETE
MAIN BOARD" on servicing notes (page 8).
Note 2: When the POWER board is replaced, spread the compound
referring to "NOTE OF REPLACING THE D913, D931,
IC901 AND IC921 ON THE POWER BOARD AND THE
COMPLETE POWER BOARD" on servicing notes (page 9).
x a o
y
. i
http://www.xiaoyu163.com
8
• Circuit Boards Location
AUDIO board
P-KEY board
Q Q
3 7 6 3
u 1 6 3
.
34 34
2 4
9 9 8
INCLUDE board
TUNER (FM) (TU1)
MB-134 board
POWER board
KEY board
FL board
F-USB board
1 5 1 5 0 8 9 2 4
m
c o
2
9 9
R-USB board
MAIN board
REG board
9 8 2 9 9