Notes On Schematic Diagram; Types Of Transistor And Led - Sharp CD-PC1881V Service Manual

CD-PC1881V
• 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 micro-micro-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 MECHA UP
SW3 DISC NUMBER
SW4 PICKUP IN
SW701 ON/STAND-BY
SW702 BOOK MARK
SW703 CLOCK
SW704 TIMER/SLEEP
SW705 DISC 1
SW706 DISC 2
SW707 DISC 3
SW708 DISC SKIP
SW709 OPEN/CLOSE
SW710 REWIND
SW711 RECORD/PAUSE
SW712 MEMORY/SET
SW713 STOP
SW714 TUNER/BAND
SW715 VIDEO
SW716 TAPE
SW717 CD
2SC2389 SE
KRC102 M
FRONT
KRC102 S
VIEW
KRC104 M
KRC104 S
KRC107 M
KTA1266 GR
E C B KTA1271 Y
(S)(G)(D)
KTA1273 Y
(1) (2) (3)
KTA1274 Y
KTC3199 GR
KTC3203 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
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
1 2 3
SVC348S
Figure 38 TYPES OF TRANSISTOR AND LED
– 38 –
• 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 DESCRIPTION
SW718 AUDIO MODE
SW719 PLAYBACK CONTROL
SW720 ON SCREEN DISPLAY
SW721 DIGEST
SW722 FAST FORWARD
SW723 TUNING UP
SW724 TUNING DOWN
SW725 PLAY
SW728 X-BASS/DEMO
SW729 EQUALIZER
SW730 DIMMER
SW731 PHANTOM
SW732 NORMAL
SW733 BYPASS
SW801 VOLTAGE SELECTOR
SWM 3 FOOL PROOF
SWM 4 F.A.S.
SWM 5 CAM
VR702 VOLUME JOG
L1154GT4
SLI325YC
SLI342DCB
SLI342UCB
SLI342UCJ
FRONT
SLI342YCB
VIEW
SLI342YCE
SLI342YCJ
) 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
110—127—
220—230-240
ON—OFF
ON—OFF
ON—OFF
ON—OFF
3
2 1
KTA1298 Y
KTA1504 GR
KTC3265 Y
KTC3876 Y