D-NE500/NE506CK
17
17
5-5. BLOCK DIAGRAM — POWER SUPPLY SECTION —
VCC2
VCPU
VCPU
VR401
Q401
VCC1
VCC2
VCC3
VCC4
VDRAM
ON/OFF
DRIVE
BA+
Q404
Q405
AVDPLL
(IC702)
ON/OFF
DRIVE
BAT+
IC403
Q403
RESET
D0-7
J401
DC IN 3V
BATTERY
3V
Q801
Q801
IC301
HEADPHONE AMP
IC801 (2/2)
SYSTEM CONTROL
IC401 (2/2)
POWER SUPPLY
CD-L
LRMU
44-51
POWER
SWITCH
IC701
POWER
SWITCH
RMKEY
J301
i
R-CH
VCPU
D2001
OPR
S802
HOLD
.
OFF ON
S2002-2006
KEY-IN
MATRIX
S2001
JOG
LCD1
LIQUID
CRYSTAL
DISPLAY
PANEL
Q803
LED
DRIVE
S803
(OPEN/CLOSE)
• Signal path
: CD PLAY
•R-ch is omitted due to same
as L-ch.
(Page 16)
(Page 16)
Summary of Contents for CD Walkman D-NE500
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