Service manual

CD-DV999W/CD-DV777W
5 – 1
AudioCD-DV999W/CD-DV777WService ManualCD-DV999W/CD-DV777WMarketE
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 100 kHz/
10 kHz
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 REVERSE PLAY ON—OFF
SW725 PLAY/REPEAT ON—OFF
SW726 STOP ON—OFF
SW727 REC/PAUSE ON—OFF
SW728 MEMORY/SET ON—OFF
SW729 OPEN/CLOSE ON—OFF
SW730 DIRECT PLAY ON—OFF
SW731 DISC2 ON—OFF
SW732 DISC4 ON—OFF
SW733 DISC5 ON—OFF
SW734 DISC3 ON—OFF
SW735 DISC1 ON—OFF
SW801 VOLTAGE SELECTOR 230-240 V
REF. NO DESCRIPTION POSITION
KRA107 S
KRC102 S
KRC104 S
KTA1504 Y
KTA1298 Y
KTC3875 GR
2SB709 AR
2SD601 AR
DS1SS133
B
(3)
E
(1)
C
(2)
TOP
VIEW
TOP VIEWTOP VIEW
KRC107 M
KTA1266 GR
KTC3265 Y
KTA1273 Y
KTA1274 Y
VIEW
FRONT
ECB
(S)(G)(D)
(1)(2)(3)
1N4004S
D10XB60F
AC AC
VIEW
FRONT
FRONT
VIEW
304VT2H3
SDPB50CD
KTC3194 Y
KTC3199 GR
KTC3200 GR
KTC3203 Y