Getting rid of function's trouble
5.fuction part
（
YPBPR
for
DVD
）
13
MANI
BOARD
FAULT
JUDGMENT
Getting rid of function's trouble
6.fuction part
（
AV
）
The PIN8 of U32 >8.5 V ?
Or the PIN6 U22>3V?
By Peripheral equipment
the
signal
is OK?
N
Y
N
Y
In YPBPR mode
If Don't display
the
picture
By Peripheral equipment
the sign al is OK?
YPBPR don't have
the audio
out
U5 PIN8,13
，
14 of U5
have the output signal ?
Maintenance R146
，
R148 and them is
Maintenance or replace the
Peripheral signal equipment
Maintenance or replace the
Peripheral signal equipment
Maintenance U15 power
，
PIN1
，
15 of U15 have the good choice .
Maintenance
the component
between PIN8
，
13
，
14 of the U15
N
Y
The PIN8 of U32 >8.5 V ?
Or the PIN6 U22>3V?
By Peripheral equipment
the
signal
is OK?
N
Y
N
Y
In YPBPR mode
If Don't display
the
picture
By Peripheral equipment
the sign al is OK?
YPBPR don't have
the audio
out
U5 PIN8,13
，
14 of U5
have the output signal ?
Maintenance R146
，
R148 and them is OK
Maintenance or replace the
Peripheral signal equipment
Maintenance or replace the
Peripheral signal equipment
Maintenance U15 power
，
PIN1
，
15 of U15 have the good choice .
Maintenance
the component
between PIN8
，
13
，
14 of the U15
N
Y
The PIN8 of U32 >8.5 V ?
Or the PIN6 U22>3V?
By Peripheral equipment
the
signal
is OK?
N
Y
N
Y
In AV mode
If Don't display
the
picture
By Peripheral equipment
the sign al is OK?
AV don't have
the audio out
Examine and repair the C110
And have the signal?
U10 PIN5
，
PIN14 of the
U10 have the signal ?
Examine and repair or replace
the
Peripheral signal equipment
Examine and repair or replace
he Peripheral signal equipment
Replace the C110
R e p l a c e t h e I C 9 E 1 9
Replace
the
main
CMOS chip
of
9E19
N
Y
Examine and repair U10 power supply
，
PIN9
，
PIN10 of the U10 is right or replace U10
Examine and repair
its front-end circuit
Y
N
