CD-SW250DVD
5 – 1
Audio
CD-SW250DVD
Service Manual
CD-SW250DVD
Market
E
CHAPTER 5.
CIRCUIT DESCRIPTION
[1] 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 resis-
tor. 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 pico-farad and the unit of the capacitor without such a sym-
bol 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.
• The indicated voltage in each section is the one measured by Digi-
tal Multimeter between such a section and the chassis with no sig-
nal 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 main-
taining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the
set.
[2] Types of transistor and LED
REF. NO
DESCRIPTION
POSITION
JOG701
VOLUME
ON—OFF
NSW1
PICKUP IN
ON—OFF
SW1
CLAMP
ON—OFF
SW2
TRAY SW1
ON—OFF
SW3
TRAY SW2
ON—OFF
SW4
DISC
ON—OFF
SW601
SPAN SELECTOR
ON—OFF
SW701
POWER ON/STAND-BY
ON—OFF
SW702
CLOCK/TIMER
ON—OFF
SW703
TUNING UP
ON—OFF
SW704
TUNING DOWN
ON—OFF
SW705
FAST REWIND/PRESET DOWN
ON—OFF
SW706
EQUALIZER
ON—OFF
SW707
FAST FORWARD/PRESET UP
ON—OFF
SW708
REVERSE MODE
ON—OFF
SW712
TUNER (BAND)
ON—OFF
SW713
CD
ON—OFF
SW714
TAPE
ON—OFF
SW715
GAME/VIDEO
ON—OFF
SW716
X-BASS/DEMO
ON—OFF
SW724
PLAY
ON—OFF
SW725
STOP
ON—OFF
SW726
REC./PAUSE
ON—OFF
SW727
MEMORY/SET
ON—OFF
SW728
OPEN/CLOSE
ON—OFF
SW729
DIRECT PLAY
ON—OFF
SW730
DISC2
ON—OFF
SW731
DISC4
ON—OFF
SW732
DISC5
ON—OFF
SW733
DISC3
ON—OFF
SW734
DISC1
ON—OFF
SW735
REVERSE PLAY
ON—OFF
REF. NO
DESCRIPTION
POSITION
KRA107 S
KRC102 S
KRC104 S
KTC107 S
KTA1504 GR
KTC3875 GR
KTK5133 S
B
(3)
E
(1)
C
(2)
TOP
VIEW
KTA1273 Y
KTA1274 Y
KTC3199 GR
KTC3194 Y
VIEW
FRONT
E C B
(S)(G)(D)
(1)(2)(3)
TS20P05G
TS10B05G
A C
A C
VIEW
FRONT
FRONT
VIEW
SDPB40F2A
SLR342VCB1
SDPB50CD
KTC3200 GR
KTC3203 Y
KTC3205 Y
Summary of Contents for CD-SW250DVD
Page 17: ...CD SW250DVD 2 10 APPLY GREASE PULL THE LEVER UNITIL REACH THE ARROW MARK 143 112 3 ...
Page 21: ...CD SW250DVD 2 14 CHANGE COLOR TO BLACK 150 151 148 7 ...
Page 24: ...CD SW250DVD 2 17 10 148 147 146 145 ...
Page 25: ...CD SW250DVD 2 18 APPLY GREASE WHEN FIXING ITEM 2 MUST FOLLOW AS SHOWN 121 144 130 11 ...
Page 26: ...CD SW250DVD 2 19 FIGURE 1 FIGURE 3 FIGURE 2 APPLY GREASE SC141 APPLY GREASE 117 12 ...
Page 34: ...CD SW250DVD 2 27 BIG SLOT FACING OUT 110 20 ...
Page 38: ...CD SW250DVD 2 31 804 24 SCREW TORQUE 3 kgf cm 0 5 0 ...
