Circuit Descriptions
7.
7.2
Main Supply
All Power Supply Units deliver the following voltages to the
chassis:
•
+12V for AMP
•
+ 5V for USB, STBY, TUNER, Panel_PWR
•
+3.3 V for SD-RAM, Scalar, HDMI SWITCH, USB2, AVDD,
VDDP
•
+2.6 V for VDDM, DDR
7.2.1
Panel Sets
The Panel set in this chassis comes with a buy-in LG supply
units:
•
LC190WH1
•
LC220WXE
This supply unit delivers the power for the display. Refer to
chapter “Circuit Diagrams and PWB Layouts”. The power
supply for the SSB is located on the SSB itself.
The connector to the SSB-platform is CN902, which has all the
basic requirements for the SSB-power.
When defective, a new panel must be ordered and the
defective panel must be sent for repair, unless the main fuse of
the panel is broken. Always replace a defective fuse with one
with the correct specifications! This part is available in the
regular market.
Figure 7-3 High level Power Architecture
Table 7-1 IPB Power connectors
1
8
250_204_090210.ep
s
090
3
1
8
+5V_
S
TBY
+
3
V
3
_
S
TBY
5V_
S
W
(WT670
3
F)
3
V
3
_
S
W
1V2
3
V
3
2V6
(DDR)
(
S
D RAM)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(DVR601RT)
3
V
3
_HD_
S
W
(TMD
S
261)
(HDMI
S
WITCH)
TUNER
AVDDA
AVDD_MPLL
VDDP
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
VDDC
AVDD_U
S
B2
AVDD_AU
AVDD_MemPLL
AVDD_VIF1
AVDD_VIF2
AVDD_VIF5
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(M
S
T9A
88
5GL)
(
S
TMP
S
2171
S
TR)
VDDM
(M
S
T9A
88
5GL)
U
S
B5V
(
S
TMP
S
2171
S
TR)
P
a
nel_PWR
TP
S
6220
3
S
I4
83
5
S
I4
83
5
S
C4524B
AME1117
AME1117
AME1117
BEAD FB7115, for w/o WT670
3
F
AIC10
8
4PE
+12V
5V2
5V_
S
W
P
a
nel_PWR
P
a
nel_PWR
+12V_
S
W
+12V_AMP
(TPA
3
12
3
)
3
V
3
3
V
3
_
S
W
S
I4
83
5
S
I4
83
5
S
I4
83
5
S
C4524B
S
C4524B
S
C4525A
U
S
B5V
LVD
S
CN902
1
2
3
4
5
6
7
8
9
10
11
3
V
3
S
TBY
5V
3
1
8
V
CN7502
1
2
3
4
5
6
7
8
9
10
3
1
3
2
11
12
1
3
14
15
16
17
1
8
19
20
21
22
2
3
24
25
26
27
2
8
29
3
0
1
2
3
4
5
6
7
8
9
10
TH1
T
H2
11
12
1
3
14
15
16
17
1
8
19
20
21
22
2
3
24
25
26
27
2
8
29
3
0
Pin
19PFL3404/12
22PFL3404/12
19&22PFL3404/12
CN851 CN853
CN831 CN833 CN851 CN853
CN902
1
HVR
HVR
INV-ON/OFF
2
HVR
HVR
BRIGHTNESS
3
-
-
+5V3
4
-
-
+5V3
5
-
-
GND
6
-
-
GND
7
-
-
GND
8
-
-
+18V
9
-
-
+18V
10
-
-
NC
11
-
-
Standby