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DR-2111, DR-UP124X-5
3. SCHEMATIC AND PCB CONNECTION DIAGRAMS
3.1 OVERALL SCHEMATIC DIAGRAM
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NOTE FOR SCHEMATIC DIAGRAMS
(Type
4A)
1.
When ordering service parts, be sure to refer to
•
PARTS LIST of EXPLODED VIEWSn or
•pee
PARTS LISTn.
'2.
Since theH are b11ic circuits. 1ome puts of them
or
the
v1lue1 of some components may
be
changed for Improve·
ment.
3.
RESISTORS:
Unit:
k:k!J,
M
:MQ,
or
Q
unless otherwise
noted.
Rated power: 1/4W, 1/
6W,
1/
fW./,
1/
lOW
unless otherwise
noted.
Tolerance:
(F): ± 1%,
(G)
: ±
2%,
(K)
: ± 10%,
(M): ± 20% or ±5%
un·
less
otherwise
noted.
4. CAPACITORS:
Unit
:
p:pF or µF unless otherwise
noted.
Ratings:
capacitor
(µ.FJ
/
voltage
(V) unless otherwise noted.
Rated
voltage:
50V except
for
electrolytic capacitors.
5. COILS:
Unit: m :mH or
µH
unless
otherwise
noted.
I
.
VOLTAGE
AND
CURRENT:
L l o r
-
V
:
DC
volt age
(V)
in
PLAY
mode unless
otherwise
noted.
<?mA
or-
mA
:
DC
current in
PLAY
mode
unless otherwise
noted.
Value in (
)
is OC
current
in
STOP
mode.
7.
OTHERS:
•
@
or 0
:
Adjusting point.
•
·""
:
Measurement
point.
•
The
&
mark
found on some
component
pans indicates the
im-
ponance
of the safety factor of the
parts.
Therefore, when re-
placing,
be sure to use
parts
of identical
designation.
I.
SCH-0
ON THE SCHEMATIC
DIAGRAM
:
•
SCH-
D
indicates
the
drawing number of the
schematic
dia-
gram.
(SCH
stands for
schematic
diagram.)
9.
SWITCHES (Underline
indicates sw itch
position):
S902 LOADING SW
MOTHER BOARD ASSY
S701
EJECT SW
NOTE FOR
PCB
DIAGRAMS:
1.
Part numbers
in PCB
diagrams match
those in the
schematic
diagrams.
2.
A comparison belween Iha
main
parts of
PCB
and
schematic
diagrams is shown
below.
Symbo
l
in
PCB
Symbol in Schematic
Part
Name
Diagrams
Diagrams
B
c
E
B
c
E
~
l©J©J
Transistor
B
C
E
B
c
E
B
c
E
~
~
l©1
Transistor
B
C E
with resistor
D
G
s
D
G
s
(0 0
O)
l@J l@J
Field effect
transistor
D
G
S
Coo o§QOQQ):l
mm
Resistor
array
~
--c;?-
3-
terminal
regulator
OVERALL SCHEMATIC
DIAGRAM
_s
_
c _H
_-_
1 _1
7
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