Sanyo LCD-19R30, Service Manual

Page: 19 / 37

Yes
Check LJ31 has
signal input.
d) TV channel has no picture
No
Check NS01
peripheral circuit,
crystal oscillator and
the power supply.
Check TUNER1 pin
1
1
has signal output.
No Yes
Check TUNER1
peripheral
circuit, power
supply and bus.
Check circuit
between
TUNER1 and
NS01.
e)
channel has no picture
Check CS21, CS22, CS23,
CS24 have signal input.
Yes No
Check NS01 peripheral
circuit, crystal oscillator
and the power supply.
Check NB06 pin 4, pin 7,
pin 9 have signal output.
No Yes
Check NB06 pin 2,
pin 5, pin 11/3, pin 6,
pin 10 have signal
input.
No Yes
Check NB06
peripheral circuit,
the power supply.
1
7
Check channel
between NB06
output and NS01
input.
The route between
YPbPr
/SCART RGB
socket and
NB06 exists problem.
YPbPr/SCART RGB