Notes On Schematic Diagram; Types Of Transistor And Led - Sharp CD-MPS440W Service Manual

CHAPTER 6.
Market CD-MPS440W S/M Service Manual CD-MPS440W E Home Stereo
CIRCUIT SCHEMATICS AND PARTS LAYOUT

[1] 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 resis-
tor. 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 sym-
bol 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 PICKUP IN
SW401 DISK UP/DOWN
SW402 OPEN/CLOSE
SW403 DISC NO.
SW404 DISC1
SW701 X-BASS/DEMO
SW702 ON/STAND-BY
SW703 OPEN/CLOSE
SW704 DISK SKIP
SW705 VIDEO/AUX
SW706 TAPE
SW707 PRESET DOWN
SW708 PLAY/REPEAT
SW709 PRESET UP

[2] TYPES OF TRANSISTOR AND LED

FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
2HA1015 GR
KRC102 M
2HC1815 GR
KRA102 M
KTC3200 GR
KRC104 M
KTC3203 Y
2SC2001 K
KTA1271 Y
2SC535-C
KRA107 M
2SB562 C
KRC107 M
2HJ9018 G
• The indicated voltage in each section is the one measured by Digi-
tal Multimeter between such a section and the chassis with no sig-
nal 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 "
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
POSITION
SW710
ON—OFF
SW711
ON—OFF
SW712
ON—OFF
SW713
ON—OFF
SW714
ON—OFF
SW715
ON—OFF
SW719
ON—OFF
SW720
ON—OFF
SW721
ON—OFF
SW722
ON—OFF
SW723
ON—OFF
SW724
ON—OFF
SW801
ON—OFF
SW802
ON—OFF
SW901
FRONT
VIEW
LP3052A
6 – 1
" (
DESCRIPTION
STOP
MEMORY/SET
TUNING/TIME DOWN
TUNING/TIME UP
TIMER/SLEEP
CLOCK
EQUALISER
VOLUME UP
VOLUME DOWN
TUNER(BAND)
DISK
REC/PAUSE
TAPE2 INITIALISE
TAPE1INITIALISE
VOLTAGE SELECTOR
CD-MPS440W
) 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
ON—OFF
230-240V
SVC348S
KDV147B