Notes On Schematic Diagram; Types Of Transistor And Led - Sharp CD-BK133W 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 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
SW601 SPAN SELECTOR
SW602 VOLTAGE SELECTOR
SW701 ON/STAND-BY
SW702 CLOCK
SW703 TIMER/SLEEP
SW709 DISC SKIP
SW710 OPEN/CLOSE
SW711 EQUALIZER/X-BASS/DEMO
FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
2SC1845 F KTA1266 GR
2SC3331 S KTA1271 Y
KRC102 M KTA1273 Y
KRC104 M KTC3194 Y
KRC107 M KTC3199 GR
KTC3203 Y

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
50/9 Hz—100/10 Hz
110 V—127 V—
220 V—230-240 V
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF

TYPES OF TRANSISTOR AND LED

FRONT
VIEW
C B E
9014 C
• 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 " 1 " (
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
SW712 VOLUME UP
SW713 VOLUME DOWN
SW714 CD
SW715 TAPE
SW716 TUNING/TIME DOWN
SW717 MEMORY/SET
SW718 REWIND
SW719 FAST FORWARD
SW720 PLAY/REPEAT
SW721 STOP
SW723 REC/PAUSE
SW724 TUNING/TIME UP
SW725 TUNER (BAND)
FRONT
VIEW
B C E
KTC2026
– 33 –
CD-BK133W
) are important for
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
FRONT
VIEW
4204SRT7