Getting rid of function's trouble
5.fuction part
（
YPBPR
for
DVD
）
14
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
t h e s i g n a l i s O K ?
N
Y
N
Y
In YPBPR mod e
If Don 't di spl ay
t h e p i c t u r e
By Peripheral equipment
t h e s i gn al i s O K ?
YPBPR don 't ha ve
t h e a u d i o o u t
U5 PIN8,13
，
14 of U5
have the output signal ?
Maintenance R146
，
R148 and th em 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
t h e s i g n a l i s O K ?
N
Y
N
Y
In YPBPR mod e
If Don 't di spl ay
t h e p i c t u r e
By Peripheral equipment
t h e s i gn al i s O K ?
YPBPR don 't ha ve
t h e a u d i o o u t
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
t h e s i g n a l i s O K ?
N
Y
N
Y
In AV mod e
If Don 't di spl ay
t h e p i c t u r e
By Peripheral equipment
t h e s i gn al i s O K ?
AV do n' t ha ve
the au di o ou t
Examine and repair the C110
A n d h a v e t h e s i g n a l ?
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
