ICF-DVD57TV
27
27
ICF-DVD57TV
•
Note For Printed Wiring Boards and Schematic Diagrams
•
DVD board is multi-layer printed board.
However, the patterns of intermediate-layer have not been in-
cluded in this diagrams.
Note on Schematic Diagram:
•
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
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– DVD/MONITOR Boards –
no mark : DVD PLAY
(
) : CD PLAY
[
] : TV
〈〈
〉〉
: AUX
∗
: Impossible to measure
– TU Board –
no mark : FM
(
) : AM
– Other Boards –
no mark : RADIO (FM/AM)
(
) : DVD PLAY
[
] : TV
〈〈
〉〉
: AUX
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
L
: DVD/CD PLAY (VIDEO)
F
: DVD/CD PLAY (ANALOG AUDIO OUT)
J
: DVD/CD PLAY (DIGITAL AUDIO OUT)
N
: FM
O
: AM
E
: TV (AUDIO)
a
: TV (VIDEO)
d
: AUX (AUDIO)
G
: AUX (VIDEO)
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
z
: Through hole.
•
f
: internal component.
•
: 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 from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
LCD board
KEY board
DVD board
TRANS board
MAIN board
TU board
DETECTION board
MONITOR board
MS-203 board
•
Circuit Boards Location
