Service Modes, Error Codes, and Fault Finding
5.
Figure 5-6 Start-up flowchart
AC ON
3
V
3S
TBY Av
a
il
ab
le
Weltrend Powered
b
y
3
V
3
_
S
TBY,
S
TANDBY=HIGH
Power_ON_OFF=Low initi
a
lize
GPIO pin
s
of Weltrend
En
ab
le A
u
dio m
u
te
S
TANDBY=Low
W
a
it for 100m
s
I
s
Power Down
=high?
W
a
it for 100m
s
Time o
u
t = 200m
s
W
a
it for
3
00m
s
Weltrend re
s
et the LOCTOP
CPU_R
S
T=HIGH
LOCTOP re
a
d the NVM
L
as
t
s
t
a
t
us
on?
Weltrend to go
to
S
t
a
nd
b
y
Initi
a
lize t
u
ner,
S
MICL,
HDMI_MUX_R
S
T
En
ab
le Power Down
En
ab
le DC_PROT INT
LCD_POWER_ON=HIGH
W
a
it for 20 m
s
S
witch ON LVD
S
S
ign
a
l
W
a
it for 1000m
s
Init. W
a
rm Component
BL_ON_OFF=HIGH
*
BL_ADJ KEEP 100
%
for
3
000m
s
b
efore dimming
Bl
a
nk pict
u
re
Pict
u
re Mode
s
et
u
p & Detection
UnBl
a
nk Pict
u
re &
Unm
u
te A
u
dio
END
NO
YE
S
NO
YE
S
I_1
8
170_0
3
4.ep
s
3
1070
8
