Notes On Schematic Diagram; Types Of Transistor And Led - Sharp XL-55 Service Manual

• 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
SW700 VOLUME
SW701 POWER ON/STAND-BY
SW702 FUNCTION
SW703 STOP/CLEAR,TUNING DOWN
SW704 PLAY/CD PAUSE,TUNING UP
SW705 BASS/TREBLE
SW706 MEMORY/SET
2HA1015 GR
FRONT
2HC1815 GR
VIEW
2SC2001 K
2SK2541
HSB562 C
KRA102 M
KRA107 M
E C B
KRC102 M
(S) (G) (D)
KRC104 M
(1) (2) (3)
KRC107 M
SC1674 C

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF

TYPES OF TRANSISTOR AND LED

FRONT
VIEW
B C E
KTC2026 Y
Figure 13 TYPES OF TRANSISTOR AND LED
– 13 –
• 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
DESCRIPTION
SW707 REC/PAUSE
SW708 REW/PRESET DOWN
SW709 FF/PRESET UP
SW800 PICKUP IN
SW801 CD LID OPEN/CLOSE
SW901 FOOL PROOF
SW902 CAM
FRONT
VIEW
MPG3372X
XL-55/55C
) are important for
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
1 2 3
SVC348S
KDV147B