Notes On Schematic Diagram; Types Of Transistor And Led - Sharp XL-70 Service Manual

XL-70/70C
• 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
NSW801 PICKUP IN
SW700 JOG
SW709 ON/STAND-BY
SW710 CLOCK/TIMER/SLEEP
SW711 TUNING UP
SW712 PLAY/CD PAUSE
SW713 VOLUME SELECT
SW721 MEMORY/SET
SW722 BASS/TREBLE
SW723 BAND
2SB562 C
FRONT
2SC2001 K
VIEW
2SC535 C
2SD468 C
KRA102 M
KRC102 M
KRC104 M
E C B
KRC107 M
(S) (G) (D)
KTA1266 GR
KTC3199 GR
(1) (2) (3)

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
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
• 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,
( ) indicates AM
< > indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. 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
SW724 REC. PAUSE
SW725 STOP/CLEAR
SW726 TUNING DOWN
SW727 FUNCTION
SW728 VOLUME JOG
SW730 CD LID OPEN/CLOSE
SW802 CD LID
SW901 FOOL PROOF
SW902 CAM
MPG3372X
HY2043
– 18 –
" ( ) are important for
DESCRIPTION
FRONT
VIEW
1
SVC348S
KDV147B
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
2 3