Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
9.1.1
SSB Cell Layout
Figure 9-2 SSB top view
9.2
LCD Power Supply
The Power Supply Unit (PSU) in this chassis is a Bobitrans
Power Solutions buy-in unit and is a black-box for Service.
When defective, a new panel must be ordered and the
defective panel must be returned for repair, unless the main
fuse of the unit is broken. Always replace the fuse with one with
the correct specifications! This part is commonly available in
the regular market.
Different PSUs are used in this chassis:
•
32" sets use a “Bobitrans” PLCD170PS09 B unit.
•
42" sets use an “Bobitrans” LIPS250PS02 unit.
9.2.1
32" sets
Figure 9-3 32” PSU connectivity
Figure 9-4 32” PSU block diagram
S
TANDBY
uP
DDR
TDA
88
90
S
MIC
TDA1547
CONTROLLER
TUNER
AUDIO CLA
SS
- D
ANALOGUE I/O
ANALOGUE I/O
DC - DC CONVER
S
ION
DC - DC CONVER
S
ION
I_1
8
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A C Inlet
B P
S
P
S
U
LC 0
8
E E
S S
B
P
a
nel
12NC:
3
122 427 24
8
51
P
a
nel
(Left)
P
a
nel
(Right)
Vin_AC: 196V
~
264V
CN01
CN04
X001
X41
3
X4
1
8
X4
1
6
X4
1
9
1P
01
1P
02
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