CD-BA1500 (serv.man10). Including circuit diagrams - Sharp Audio Service Manual (repair manual). Page 20

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CD-BA1500H
– 20 –
 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 “       ” (                          ) 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 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
POSITION
POSITION
SW613
EQUALIZER
ON—OFF
SW614
VOLUME UP
ON—OFF
SW615
VOLUME DOWN
ON—OFF
SW616
CD
ON—OFF
SW617
TAPE
ON—OFF
SW618
TUNING /TIME DOWN
ON—OFF
SW619
MEMORY/SET
ON—OFF
SW620
REWIND
ON—OFF
SW621
FORWARD
ON—OFF
SW622
PLAY/REPEAT
ON—OFF
SW623
STOP
ON—OFF
SW625
REC/PAUSE
ON—OFF
SW626
TUNING/TIME UP
ON—OFF
SW627
VIDEO/AUX
ON—OFF
SW628
TUNER (BAND)
ON—OFF
REF. NO
DESCRIPTION
SW1
OPEN/CLOSE
ON—OFF
SW2
CLAMP
ON—OFF
SW3
DISC NUMBER
ON—OFF
SW4
PICKUP IN
ON—OFF
SW601
POWER
ON—OFF
SW602
CLOCK
ON—OFF
SW603
TIMER/SLEEP
ON—OFF
SW604
PTY TI/SEARCH
ON—OFF
SW605
EON
ON—OFF
SW606
ASPM
ON—OFF
SW607
DISPLAY MODE
ON—OFF
SW608
STATION
ON—OFF
SW609
DISC SKIP
ON—OFF
SW610
OPEN/CLOSE
ON—OFF
SW611
DIMMER
ON—OFF
SW612
X-BASS/DEMO
ON—OFF
Figure 20 TYPES OF TRANSISTOR AND LED
(1)  (2) (3) 
(S) (G) (D) 
E   C    B 
FRONT
VIEW
KTA1266  GR
KRC102  M
KRC104  M
KTA1271 Y
KTA1274 Y
2SC1845 F
KTA1273  Y
KTC3203  Y
KTC3199  GR
KRC107 M
2SC380 O
KTC2026
4204SRT7
B C E
FRONT
VIEW
FRONT
VIEW
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