HBD-E385/E390/T39
HBD-E385/E390/T39
34
34
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.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TUNER
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
).
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
f
:
TUNER
L
:
USB
E
:
VIDEO
d
:
LAN
J
: DISC PLAY
• Abbreviation
CND : Canadian model
• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.
For Printed Wiring Boards.
Note:
•
X
: Parts extracted from the component side.
•
Y
: Parts extracted from the conductor side.
•
f
: Internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
• Lead layouts
surface
CSP (Chip Size Package)
Lead layout of conventional IC
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• MB148 board is multi-layer printed board. However, the
patterns of intermediate-layers have not been included in
this diagrams.
• Abbreviation
CND : Canadian model
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
*
Replacement of IC106 and IC206 on the MB148 board used in this
unit requires a special tool.
Note:
When the AMP board is replaced, spread the compound referring
to “NOTE OF REPLACING THE IC3102 AND IC3302 ON
THE AMP BOARD AND THE COMPLETE AMP BOARD”
on servicing notes (page 10).
Note:
When the AMP board is replaced, spread the compound referring
to “NOTE OF REPLACING THE IC3102 AND IC3302 ON
THE AMP BOARD AND THE COMPLETE AMP BOARD”
on servicing notes (page 10).
*
Replacement of IC106 and IC206 on the MB148 board used in this
unit requires a special tool.
Note:
The components identi
fi
ed by mark
0
or
dotted line with mark
0
are critical 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 numéro spéci
fi
é.
• Circuit Boards Location
POWER KEY board
wireless LAN card
(WLC1)
PANEL board
switching regulator
(SWR1)
AMP board
MB148 board
TUNER2FMF-NS board
