1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
PSU
12V
DC-DC
5V_STB
Main Board Power Tree
RT7295A
5V_M
D-LDO
3V3_STB
0.95V
3.5A(eff=85%)
1180mA
Panel Current
NT72563
H
D
M
I1
H
D
M
I2
EMMC
FLASH(4GB)
AMP
AD82587
L
R
IR & LED&KEY
DC-DC
2000mA
TPS563201
5V_STB
2000mA(eff=90%)
2000mA
DDR3
256MB
1500mA
VCC-PANEL
AD82587
TBD
NT72563
3.2A
LDO
3V3_M
180mA
8ohm 8W
PANEL_EN
POW_EN
950mA
CVBS& Audio IN
SYSTEM FUNCTION BLOCK DIAGRAM
LVDS
RJ45
A
T
V
/I
S
D
B
V
IF
A
G
C
130mA
USB2.0
500mA
Ear phone
NT72563
NT72563
USB2.0
500mA
USB 2.0*2
WIFI
DDR3
512MB
NT72563
U7
T6
M_SCL
M_SDA
3V3_T
Addr
AD82587
Addr
R842
3V3_M
Tun_I2C
E1
E2
5V_WIFI
DCDC
1.5V_DDR
580mA
LDO
2.5V
310mA
NT72563
200mA
500mA
D-LDO
1.8V_EMMC
300mA
WIFI_ON
COAX & OPTIACL
21
5. BLOCK DIAGRAM & SCHEMATIC DIAGRAM
Содержание F8
Страница 13: ...2 Take off the WIFI BD form bottom back cover 13 ...
Страница 34: ...ϭ No power No power LED RC or Key can not turn on TV Power LED no light no change 34 ...
Страница 35: ...Ϯ No Display Black PĂŶĞů Back light is OK sound is OK but no picture 35 ...
Страница 36: ...ϯ No back light Power LED logic OK sound OK but no picture Different from No Display 36 ...
Страница 37: ...ϰ No sound One or all signal source without sound 37 ...
Страница 38: ...ϱ Signal source no function One or several source no function 38 ...
Страница 39: ...6 Abnormal Display OSD NG or picture NG 39 ...
Страница 40: ...ϳ No tuning channels DTV or ATV no Channels 40 ...
Страница 41: ...NT72563 update SW SOP 41 7 Software Update ...
