MDS-DRE1
– 29 –
– 30 –
• Circuit Boards Location
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
%
: indicates tolerance.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
®
: Through hole.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : STOP
(
) : PLAY
〈〈
〉〉
: REC
∗
: Impossible to measure
• 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.
E
: PLAY
j
: REC (ANALOG IN)
k
: REC (DIGITAL IN)
f
: REC (COAXIAL DIGITAL IN)
h
: REC (OPTICAL DIGITAL IN)
Note:
The components identi-
fied by mark
!
or dotted
line with mark
!
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q
6-5.
NOTES FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
(In addition to this, the necessary note is printed in each block)
• Indication of transistor.
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.
DETECTION SW board
MOTOR board
JOG board
PSW board
REC board
CENTER board
POWER board
FADER board
DIGITAL board
BD board
EJECT board
DISPLAY board
