Read Sharp LL-173C Service Manual online
LL-173C
BLOCK DIAGRAM
4 – 1
CHAPTER 4. BLOCK DIAGRAM
XT
AL1
22.118MHz
T
OP245Y
OPP/OCP
LDO
5V
-3.3V
5V
-1.8V
T
ransf
or
mer1
OZ9910
Rectifier &
Filter Circuit
P
anel Interf
ace
Lamp2
K
e
yboard
Lamp3
K
e
ypad
Connector
V
GA Input
V
GA Connector
Scaler
TSU56AK
A
C
Line Filter
TFT LCD P
anel 17"
MT170EN01(Innolux)
F
e
edbac
k
OV
P
LT
V817
Po
w
e
r
T
ransf
or
mer
MCU
W78E65p
Powe
r
T
ransf
o
rmer2
Lamp1
Lamp4
XT
AL2
14.318MHz
24C16
Open
Protection
24C02
On/Off
Br
ightness
On/Off
Brigh
tnes
s
12V
5V
AP2301
PMBT3906
P
anel Enab
le
AP4501
AP4501
1
2
3
4
1
2
3
4
5V
A
C
Input 90V
-264V
A
C
Soc
k
e
t
Rectifier &
Filter Circuit
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