Circuit Descriptions
EN 44
Q549.2E LA
7.
2009-May-08
7.2
Power Architecture
Refer to figure
Figure 7-3
for the power architecture of this
platform.
Figure 7-3 Power Architecture TV543/92 platform
7.2.1
Power Supply Unit
All power supplies are a black box for Service. When defective,
a new board must be ordered and the defective one must be
returned, unless the main fuse of the board is broken. Always
replace a defective fuse with one with the correct
specifications! This part is available in the regular market.
Consult the Service website for the order codes of the boards.
In the TV543 Elite Core platform, for sets up to and including
47", the Integrated Power Board (IPB) - incl. inverter is used.
For sets of 52 " and 56", a conventional PSU (with additional
inverters) is used.
In this manual, no detailed information is available because of
design protection issues.
The output voltages to the chassis are:
•
+3V3-STANDBY (standby-mode only)
•
+12V (on-mode)
•
+Vsnd (+24V) (audio power) (on-mode)
•
+24V (bolt-on power) (on-mode)
•
IPB: High voltage to the LCD panel (for sets up to and
including 47").
7.2.2
Diversity
Below find an overview of the different PSUs that are used:
Table 7-1 Supply diversity
1
83
10_202_090
3
17.ep
s
090
3
17
F
us
e
F
us
e
F
us
e
P
S
U
Di
s
pl
a
y
Am
b
ilight
V di
s
pl
a
y
LC D
Power-on
24V
S
t
a
nd
b
y
V
ba
cklight 24 V
**
A
u
dio proc
+ C l
ass
D
24 V
s
(+/-12 V
s
opt)
+12V
D
ua
l
D C/D C
+
3
V
3
+1V2
+1V2
P l
a
tfo rm
P o w e r
D
ua
l
D C/D C
2.5V 1
%
volt
a
ge r ef
+2V5
+2V5
+1V
8
+1V
8
+
3
V
3
F
+5V
+5V
t
u
ner
+5V-T
u
n
PNX5100
+1V2-PNX
8
5XX
+5V
+
3
V
3
+1V
8
-PNX5100
+1V
8
-PNX
8
5XX
+2V5 (loc.Contr.FPGA)
+1V2-PN X5100
+5V-T U N
SS
B
Bolt-on
V inverter 4kV
*
Inverter
*
L
a
m p On
*
BL D IM
*
L
a
m p On
BL D IM
Inverter
**
S
t
b
y
P
En
ab
le-
3
V
3
12V
U nder volt
a
ge
detect
S
w itche
s
off
+
3
V
3
a
nd
+5V
*
: pre
s
ent in inverterle
ss
di
s
pl
a
y
s
**
: pre
s
ent in di
s
pl
a
y
s
w ith intern
a
l inverter
D etect 2
(12V
s
en
s
e)
AN D
D etect1
+1V2
+1V2-
S
T AN D BY
+
3
V
3
s
t
b
y
24V
**
Power-OK
12VD i
s
p
3
V
3s
t
b
y
Boo
s
t control (Opt)
+
3
V
3
(
SS
B)
+1V
8
Boo
s
t conv
.
(opt)
+
33
V-TUN(
a
n
a
log)
+
33
V
Supplier
PSU
Model
Input Voltage Range
LGIT
PLHL-T826A
32"
High Mains (198- 265 Vac)
Delta
DPS-298CP A
37"
High Mains (198- 265 Vac)
Delta
DPS-411AP-3 A
56"
High Mains (198- 265 Vac)
