Notes On Schematic Diagram - Sharp CD-C290X Service Manual

CD-C290X
• 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 3D SURROUND
SW702 VOLUME DOWN
SW703 X-BASS/EQUALIZER
SW704 VOLUME UP
SW705 REC/PAUSE
SW706 FF
SW707 STOP
SW708 PLAY
SW709 REW
SW710 TUNING UP/TIME
SW711 TUNING DOWN/TIME
SW712 ON/STAND-BY
SW713 CLOCK
KRC102 M
KRC104 M
FRONT
KRC107 M
VIEW
KTA1266 GR
KTA1271 Y
KTC3199 GR
E C B
KTC3203 Y
(1) (2) (3)
2SK246 GR
(S) (G) (D)

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
KTA1273 Y
KTC3200 GR
FRONT
VIEW
B C E
(3) (2) (1)
Figure 12 TYPES OF TRANSISTOR AND LED
• 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
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
SW714 TIMER/SLEEP
SW715 MEMORY
SW716 CD
SW717 TUNER/BAND
SW718 TAPE 1-2
SW719 VIDEO/AUX
SW720 DISC 1
SW721 DISC 2
SW722 DISC 3
SW723 DISC SKIP
SW724 OPEN/CLOSE
SW725 SPAN SELECTOR
SW901 VOLTAGE SELECTOR
SWM 3 FOOL PROOF
SWM 4 F.A.S
SWM 5 CAM
FRONT VIEW
KV1236Z23F
– 12 –
" ( ) are important for
DESCRIPTION
100/10—50/9
110—127—
220—230-240
FRONT
VIEW
333GTH2
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