Notes On Schematic Diagram; Types Of Transistor And Led - Sharp CD-EA235V Service Manual

CD-EA235V
• 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
SW701 ON/STAND-BY
SW702 MEMORY/SET
SW703 REC/PAUSE
SW704 TUNING DOWN
SW705 TUNING UP
SW706 TIMER/SLEEP
SW707 CLOCK
SW708 P.B.C
SW709 OSD
SW710 DIGEST
SW711 CD
FRONT
VIEW
B C E
KTC2026

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
50 kHz/9 kHz—
100 kHz/10 kHz
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
E C B
(S) (G) (D)
(1) (2) (3)
KRA107 M KTA1274 Y
KRC102 M KTA1271 Y
KRC104 M KTC3194 Y
KTA1046 Y KTC3199 GR
KTA1266 GR KTC3200 GR
KTA1273 Y KTC3203 Y
• 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
SW712 TUNER
SW713 VIDEO/AUX
SW714 TAPE
SW715 STOP
SW716 PLAY
SW717 FAST FORWARD
SW718 FAST REWIND
SW719 REVERSE PLAY
SW720 REVERSE MODE
SW721 X-BASS/DEMO
SW722 EQUALIZER
SW723 OPEN/CLOSE
SW724 DISC SKIP
SW725 VOLUME UP
SW726 VOLUME DOWN
SW801 VOLTAGE SELECTOR
B
(D)
(3)
TOP
VIEW
E
(G)
(1)
KTA1504 GR
KTC3265 Y
KTC3875 GR
UN2211
– 34 –
) are important for
DESCRIPTION
220 V—230-240 V
C
(S)
(2)
304VT2E1
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
110 V—127 V—
FRONT
VIEW