Sharp CD-E55 Service Manual - Page 15

Notes On Schematic Diagram, Types Of Transistor And Led

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NOTES ON SCHEMATIC DIAGRAM CD-E500 CD-E55/E44 • 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. • 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. 4. In the power section, a tape is being played back. 5. In the CD section, the CD is stopped. • Parts marked with " 1 " ( ) are important for 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 SW1 SW401 SW402 SW403 SW404 SW701 SW702 SW703 SW704 SW705 SW706 SW707 SW708 SW709 SW710 DESCRIPTION PICKUP IN DISC UP/DOWN OPEN/CLOSE DISC NO. DISC 1 X-BASS/DEMO POWER ON/STAND-BY OPEN/CLOSE DISK SKIP VIDEO/AUX TAPE PRESET DOWN PLAY/REPEAT PRESET UP STOP 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 REF. NO SW711 SW712 SW713 SW714 SW715 SW719 SW720 SW721 SW722 SW723 SW724 SW801 SW802 SW803 DESCRIPTION MEMORY/SET TUNING/TIME DOWN TUNING/TIME UP TIMER/SLEEP CLOCK EQUALIZER VOLUME UP VOLUME DOWN TUNER(BAND) CD REC/PAUSE TAPE2 INITIALIZE TAPE1 INITIALIZE TAPE2 REC 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 TYPES OF TRANSISTOR AND LED FRONT VIEW EC B (S) (G) (D) (1) (2) (3) HSB562 C KSA1015 GR HSC1609 GR KSA1271 Y KRA102 M KSC1815 GR KRA107 M KSC3203 Y KRC102 M SSC1674 C KRC104 M 2SC2001 K KRC107 M - 15 - 123 KDV147B SVC348S

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– 15 –
CD-E500
CD-E55/E44
•
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.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
•
Parts marked with “
1
” (
) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
•
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.
TYPES OF TRANSISTOR AND LED
REF. NO
DESCRIPTION
POSITION
SW711
MEMORY/SET
ON—
OFF
SW712
TUNING/TIME DOWN
ON—
OFF
SW713
TUNING/TIME UP
ON—
OFF
SW714
TIMER/SLEEP
ON—
OFF
SW715
CLOCK
ON—
OFF
SW719
EQUALIZER
ON—
OFF
SW720
VOLUME UP
ON—
OFF
SW721
VOLUME DOWN
ON—
OFF
SW722
TUNER(BAND)
ON—
OFF
SW723
CD
ON—
OFF
SW724
REC/PAUSE
ON—
OFF
SW801
TAPE2 INITIALIZE
ON—
OFF
SW802
TAPE1 INITIALIZE
ON—
OFF
SW803
TAPE2 REC
ON—
OFF
SW1
PICKUP IN
ON—
OFF
SW401
DISC UP/DOWN
ON—
OFF
SW402
OPEN/CLOSE
ON—
OFF
SW403
DISC NO.
ON—
OFF
SW404
DISC 1
ON—
OFF
SW701
X-BASS/DEMO
ON—
OFF
SW702
POWER ON/STAND-BY
ON—
OFF
SW703
OPEN/CLOSE
ON—
OFF
SW704
DISK SKIP
ON—
OFF
SW705
VIDEO/AUX
ON—
OFF
SW706
TAPE
ON—
OFF
SW707
PRESET DOWN
ON—
OFF
SW708
PLAY/REPEAT
ON—
OFF
SW709
PRESET UP
ON—
OFF
SW710
STOP
ON—
OFF
REF. NO
DESCRIPTION
POSITION
(1)
(2) (3)
(S) (G) (D)
E
C
B
FRONT
VIEW
HSB562 C
HSC1609 GR
KRA102 M
KRA107 M
KRC102 M
KRC104 M
KRC107 M
KSA1015 GR
KSA1271 Y
KSC1815 GR
KSC3203 Y
SSC1674 C
2SC2001 K
KDV147B
SVC348S
1
2
3