Notes On Schematic Diagram; Types Of Transistor And Led; Front View - Sharp CD-DVD500 Service Manual

CD-DVD500
• 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 pico-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
SW1 OPEN/CLOSE
SW2 CLAMP
SW3 DISC NUMBER
SW4 PICKUP IN
SW701 POWER
SW702 CLOCK
SW703 TIMER/SLEEP
SW704 BYPASS
SW705 NORMAL
SW706 PHANTOM
SW707 VIRTUAL
SW708 DISC 1
SW79 DISC 2
SW710 DISC 3
SW711 DISC SKIP
SW712 OPEN/CLOSE
FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
KRA107 M KTA1273 Y
KRC102 M KTC3203 Y
KRC104 M KTC3199 GR
KRC107 M 2SA1015 GR
KTA1271 Y 2SC2878 B
KTA1266 GR 2SD468 C
KTA1046 Y

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
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF

TYPES OF TRANSISTOR AND LED

FRONT
VIEW
B C E
KTC2026 Y
2SB1565 F
2SD2012
• 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
SW714 DIMMER
SW715 X-BASS
SW716 EQUALIZER
SW722 CD
SW723 TAPE
SW724 TUNING/DOWN
SW725 MEMORY SET
SW726 FAST REWIND
SW727 FAST FORWARD
SW728 PLAY
SW729 STOP
SW731 REC/PAUSE
SW732 TUNING/UP
SW733 VIDEO
SW734 TUNER
B
(D)
(3)
E
(G)
(1)
2SC2412 K
KRC104 S
KIA1504 Y
2SA1955 A
– 56 –
" ( ) are important for
DESCRIPTION
C
(S)
(2)
4204SRT7
4204UYT7
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
FRONT
VIEW