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NOTE FOR SCHEMATIC DIAGRAMS
(Type 4A)
. When ordering service parts, be sure to refer to
"PARTS
LIST of EXPLODED
VIEWS"
or "PCB
PARTS LIST".
=
. Since these are basic circuits, some parte of them or the
values of some components may be changed for improve-
ment.
e RESISTORS:
Unit: :kQ, M:MQ, or Q unless otherwise noted.
Rated power:
1/4W, 1/6W, 1/8W, 1/10W unless otherwise noted.
Tolerance:(F):+
1%, (G):+2%, (K):+ 10%, (M):+20% or +5%
unless otherwise noted.
>
CAPACITORS:
Unit : p:pF or uF unless otherwise noted.
Ratings : capacitor ( F) /voltage (V) unless otherwise noted.
Rated voltage : 50V except for electrolytic capacitors.
. COILS:
Unit : m:mH or WH
unless otherwise noted.
. VOLTAGE AND CURRENT:
TI
o<+V:
DC voltage (V) in PLAY mode unless otherwise noted.
©mA
or
mA:
DC current In PLAY mode unless otherwise noted.
Value in(
=) ls DC current In STOP mode.
7. OTHERS:
@@or@ : Adjusting point.
@
<@ = : Measurement point.
@ The A mark found on some
component
parts Indicates the Im-
portance of the safety factor of the parts. Therefore,
when replacing,
be sure to use parts of identical designation.
8. SCH - CON THE SCHEMATIC DIAGRAM:
®@ SCH- DL indicates the drawing number of the schematic diagram.
(SCH stands for schematic diagram.)
9. SWITCHES (Underline indicates switch position):
OUT OF UNIT
$1005 : CLAMP
MAIN UNIT
$1001- 1:1DO
$1001-2:101
|SCSIID
$1001-3:1D2
$1001-4:MTCS
$1001- 5 : BLKSZ(2048/512)
$1001-6: PARITY
$1001-7 ; TERMINATOR
$1001-8: TEST!
LOSB UNIT
$1003 :
$1004: Jeoanina POSITION SWITCH
EJSB UNIT
$1002 : OPEN/CLOSE( 4 )
POWER ASSY
$W101 ; POWER ON/OFF
NOTE FOR PCB DIAGRAMS:
DW - $114X
1. Part numbers in PCB diagrams match those in the schematic
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol in PCB
Diagrams
Diagrams
Symbol in Schematic
Part Name
Transistor
Transistor
with resistor
Field effect
transistor
3-termina!
regulator
Resistor array
17
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