System Control - Eiki LC-XNS2600 Service Manual

System Control

L2
O N_ 3 _ 3 V_LAN
N3
PW_N M CLR
N5
PW _N ET_ H/L
N2
PW_U PDA TA
D 21
SDA
IC5002
C21 PL2 32
SCL
E3
High Level:LED Yellow
TEM P_ LED
E2
High Level:LED Red
READ Y_ LED
D1
High Level:LED Green
PO W ER_LED
H5
High Level:SD
SD_MCU
C12 Lamp detect:Low level is normal
LAM P_S
IC1001
A10
High Level:ECO
LAM P_ECO
E1
High Level:Lamp enable
LAM P_EN
J2
FAN_SW
H22
FANA_DA
E26
FANB_DA
F25
FANC_DA
D26
P-FAIL
D 25
KEY1
C26
KEY2
C18,D17
SD A_ PA NEL_ A ,SCL_ PA N EL_A
D21,C21 D21,C21
3_3SDA,3 _ 3 SCL 3_3SDA,3 _ 3 SCL
C24
E20
RXD0
IC1020
B25
TXD0
74LVC125APW
M1
SIRST
AE18
SILINT
M2
SISCDT
Q4002 3 .3 V_ LAN
Network
TPIN+
IC5004
TPIN -
LAN Control IC
TPO U T+
PIC18F67J60
TPO UT -
U RAT
LED_A
LED _B
D3010
LAMP indicator
Q3 040
Q3 042
READY indicator
Q3041 D3 011
POWER indicator
FAN Control
Control level:0-2.5V
Control level:0-2.5V
Control level:0-2.5V
P-Fail：High Level
J3501-B
RS-232C
P_ON/O FF
12 13
8
IC1801
PIC16F1823
IC4003
HDMI Control
IT6604
Chassis Block Diagrams
Main board
16V
Audio Input(L/R)
RJ45
Audio Input(HDMI)
Q 3020
IC3003
1
FAN_ERR
2
KEY Circuit
R/ C_PW
R/ C_MCU
P_KEY
3 11
-35-
AUDI O DC-DC
11V
IC1202
PT2830
Q 5006
380V Power Supply
11 LA M P_ DC_ ON
P.F.CON TROL
12
Power board
1
P3001
5
Ballast
4
1
4
Lamp Cover SW
2
P3002
P3004
IC3008
TC7WH14FU
P1902A
P5003
1
7W 8ohm
2
1
3