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25
DVP-NW50
DVP-NW50
6-3. BLOCK DIAGRAM — MAIN (2) SECTION —
9
+9V
4
TUNED
6
STEREO
2
SCL
3
SDA
5
L-CH
7
R-CH
U9
A/D,D/A CONVERTER
U11
DE CODER
U1 (2/3)
SYSTEM CONTROLLER
8
SDOUT
MONITOR_CHILD
LRCK
SCLK
MCLK
SDIN
U24
U1
REMOTE CONTROL RECEIVER
D1
D2
D3 D4
KEY00
KEY01
KEY02
KEY_CS1
EP$KEY00
EP$KEY01
EP$KEY02
4
4
U32
RESET
U5
AUDIO AMP
U26
PHYSICAL LAYER TRANSEIVER
U37,U39,U40,U42
PROTECTOR
U25
TIMER (40KHz)
U2
NAND
Q4
D17
D16
U10
RESET
U12
7 LCD_CLK
6 LCD_DATA
16 LCD_RS
17 LCD_RESET
18 CS1
19
LED+
20
LED-
Q1
LED DRIVER
J7
J13
J4
MIC
AC5V
J15
TUNER
IR IN
RXD
IR REMOTE
IR IN
LINE
IN
L
R
1
2
4
5
1
3
4
2
U41
PROTECTOR
U44 (1/2)
MIC AMP
U38
PROTECTOR
U31
SWITCH
U30
Q1
1
1
7
3
2
U44 (2/2)
MIC AMP
6
5
2
4
RVDD
2
4
J8
IR REMOTE
IR OUT
4
2
LCD(LIQUID CRYSTAL DISPLAY)
ESD2
ESD3
ESD2 - 4
PROTECTOR
ESD4
ESD1
PROTECTOR
U39
U40
VCC
J23
J3
U37
U40
D21
(+) 1
(-) 2
SPEAKER$VO1
SPEAKER
SPEAKER$VO2
D20
D18
D13
Y3
25MHz
• SIGNAL PATH
: AUDIO(DIGITAL)
: AUDIO(ANALOG)
: TUNER
: LINE IN
: MIC
Q11,Q3
INVERTER
7
KEY SW
S1 - S23
MIC
SWITCH
VCC
DIMMING_COM
VCC