Service manual

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CD-C449W/K449W
SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW991 VOLTAGE SELECTOR 230-240V
SWD1 VOLUME JOG ON—OFF
SWD2 JOG ON—OFF
SWD3 X-BASS ON—OFF
SWD7 SOFT ON—OFF
SWD8 VOCAL ON—OFF
SWD9 HAVY-2 ON—OFF
SWD10 HAVY-1 ON—OFF
SWD11 FLAT ON—OFF
SWD12 TUNING UP/CUE ON—OFF
SWD13 STOP ON—OFF
SWD14 NORMAL EDIT ON—OFF
SWD15 HIGH EDIT ON—OFF
SWD16 REC/PAUSE ON—OFF
SWD17 F-PLAY ON—OFF
SWD18 SRS/DEMO ON—OFF
SWD21 BAL RIGHT ON—OFF
SWD22 BAL LEFT ON—OFF
SWD30 TUNING DOWN/REWIND ON—OFF
SWD31 CD PAUSE ON—OFF
SWD32 REVERSE MODE ON—OFF
SWD33 R-PLAY ON—OFF
SWD34 CLOCK ON—OFF
SWD35 MEMORY ON—OFF
SWD36 TIMER ON—OFF
SWD37 SLEEP ON—OFF
SWD38 CLEAR ON—OFF
SWD39 VIDEO/AUX 1 ON—OFF
SWD40 VIDEO/AUX 2 ON—OFF
SWD41 TAPE 1/2 ON—OFF
SWD42 TUNER/BAND ON—OFF
SWD43 CD ON—OFF
SWD48 POWER ON—OFF
SWD49 KARAOKE (CD-K449W Only) ON—OFF
SWD50 DISC 1 ON—OFF
SWD51 DISC 2 ON—OFF
SWD52 DISC 3 ON—OFF
SWD53 DISC SKIP ON—OFF
SWD54 OPEN/CLOS ON—OFF
SWF2 SPAN SELECTOR 50/9
SWM3 REC FWD ON—OFF
SWM4 REC RVS ON—OFF
SWM5 F.A.S ON—OFF
SWM6 CAM ON—OFF
• 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 POSITIONREF. NO DESCRIPTION
Figure 17 TYPES OF TRANSISTOR AND LED
KTA1266 GR
KTA1270Y
KTA1271 Y
KTA1273 Y
KTA1268 GR
KTC3199 GR
KTC3203 Y
KRA107 M
KRA102 M
KRC102 M
KRC104 M
KRC107 M
2SC535 C
2SC1845 F
2SD2012
2SB1375
SLR325MG
SLR325VR
KL052UL
SLR505MC
LMKD515B
KV1236Z23
(S) (G) (D)
(1) (2) (3)
E C B
FRONT
VIEW
FRONT
VIEW
B C E
(D)(G)(S)
(3) (2) (1)
FRONT
VIEW
FRONT VIEW
2SC2878 A
2SC2878 B
2SC2236 Y
2SD468 C
2SK246 GR
KTC3200 GR