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two、The red led lights，but doesn't turn to yellow after power on and black display
1、check
connector
2、check PDP
power
check bus
circuit and PCB
abnormality
wire
power on，check
XP801 4 pin standby
is low≦0.5Vvoltage
yes
no
checkXP801 D6V、VDD
yes
2
I
Cbus
normal
1、check VPC3230、PW1235
power circuit
2、check VPC3230、PW1235
reset voltage
3、check VPC3230、PW1235
peripherally circuit
check N803、N804
无
No
output voltage
Yes
check X3 14.318M
No
crystal
Yes
check PW113
RESET pin
No
voltage
Yes
check AM29LV800BT to
PW113 address、data、
control
change
AM29LV800BT or
PW113 and wire
between them
44
1、check PW113
power impedance
2、checkN803、
N804
change Y2
crystal
check
resetcircuit
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