Notes On Schematic Diagram; Types Of Transistor And Led - Sharp XL 1700 - Executive Microsystem Service Manual

XL-1700/1700C
Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with "Fusible" is a fuse
type.
Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression "capacitance/withstand
voltage" is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
REF. NO DESCRIPTION
SW702 PICKUP IN
SW709 POWER
SW710 CD LID OPEN/CLOSE
SW711 REW/PRESET DOWN
SW712 FF/PRESET UP
SW713 CD STOP/TUNING DOWN
SW718 CD PLAY/PAUSE/TUNING UP
2SB562 C
FRONT
2SC380 O
VIEW
2SK2541
KRA102 M
KRA107 M
KRC102 M
KRC104 M
E C B
KRC107 M
(S) (G) (D)
KTA1266 GR
KTC3199 GR
(1) (2) (3)
KTC3200 GR

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
FRONT
VIEW
B C E
2SD2012 Y
Figure 18 TYPES OF TRANSISTOR AND LED
– 18 –
The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
( ) : AM mode
: FM stereo mode
2. In the CD section, the CD is stopped.
Parts marked with " " (
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
REF. NO DESCRIPTION
SW719 VOLUME DOWN
SW720 VOLUME UP
SW725 BASS/TREBLE
SW726 MEMORY/SET
SW727 CLEAR
SW728 FUNCTION
SW802 CD LID
FRONT
VIEW
LP3052D
LP99B
) are important for
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
1 2 3
SVC348S