Notes On Schematic Diagram; Types Of Transistors And Led - Sharp CDC2900 - 3-CD Compact Stereo System Service Manual

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 POWER
SW703 CLOCK
SW704 TIMER/SLEEP
SW705 DISC 1
SW706 DISC 2
SW707 DISC 3
SW708 DISC SKIP
SW709 OPEN/CLOSE
SW710 REV
SW711 REC PAUSE
SW712 MEMORY/SET
SW713 STOP
KTA1266 GR
2SA1015 GR
2SA1318
2SC3331
2SC535
KRA102 M
KRA109 M
KRC102 M

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
FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
KRC104 M
KRC107 M
KTA1271 Y
KTA1273 Y
C KTA1274 Y
KTD2058 Y
KTC3200 GR
KTC3203 Y
Figure 15 TYPES OF TRANSISTOR AND LED
– 15 –
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
SW714 TUNER/BAND
SW715 VIDEO
SW716 TAPE
SW717 CD
SW722 FF
SW723 TUNING UP
SW724 TUNING DOWN
SW725 PLAY
SW726 VOLUME DOWN
SW727 VOLUME UP
SW728 X-BASS/DEMO
SW729 EQUALIZER
SW730 DIMMER
SWM 3 FOOL PROOF
SWM 4 F.A.S.
SWM 5 CAM
FRONT VIEW
L1154GT4
SLI342YCB
SLI342DCB
SLI342UCB
SLI342YCJ
CD-C622/C2900
) 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
ON—OFF
ON—OFF