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4-2-4 Solution processes for DC Power
4-2-5 Solution processes for SCALER
NG
OK
Test input voltage:
L701 --
Æ
12 V
L703 --
Æ
6 V
L721 --
Æ
3.3 V (Samsung PANEL)
Is there any short or
cold solder?
Test voltage as follow
:
L705--
Æ
8V
L706--
Æ
5V
L704--
Æ
5V
L718--
Æ
2.5V
L719--
Æ
1.2V
Check the junction that CN703 to
CN704 or CN701 to CN702 ok
or not?
OK
NG
Check power supply , input
and output signal of U1
(
ZR391055
)
and U2
(
DS90C2501
)
ok or not?.
OK
Check input and output signal of
U8
,
and TX0-/TX0+ signal etc. ok
or not?
OK
Is there any short or
cold solder?
Replace U8
NG
Содержание 42PSEA06
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Страница 35: ...Page 34 of 83 9 2 Image board block diagram and signal introduce process 9 2 1 Image board block diagram...
Страница 43: ...Page 42 of 83 YPbPr Timing 955 PATTERN946 color bar picture Y signal L55 R signal L53 B signal L54...
Страница 47: ...Page 46 of 83 12 Mechanical Introduction 12 1 PDP Internal view...
Страница 48: ...Page 47 of 83 12 2 Mechanical of cabinet front disassembly...
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