Regular Stripe Is Generated About The Quantity Of One Data Tcp Ic Or More - Daewoo DPP-42A1LASB Service Manual

2-3. It Generates Unusual Pattern of Data
TCP IC unit
(1) In case of generating unusual pattern of Data TCP IC unit
as below picture, there is problem in the Signal(CLK, data,
STB) or connector that is input into Data TCP IC
(2) In case of <case 1>
- Confirm the connection of Data TCP connector and IC
Fail.
- Replace the relevant X B/D.
(3) In case of <case 2>, <case 3>
- Confirm the connection of Data TCP connector and
connector that is connected from CTRL to X B/D.
- Check the foreign on the CTRL B/D and X B/D.
- Replace the relevant X B/D or CTRL B/D.
(4) In case of <case 4>, <case 5>
- Confirm the connector that is connected from CTRL to X B/D
- Replace relevant X B/D or CTRL B/D
- Confirm the connection of Z B/D and XR B/D(8pin), XR
B/D and XL B/D(5pin) power connector.
[ [ Screen Display Form
<Case 1>
<Case 2>
<Case 3>
<Case 4>
<Case 5>
Unusual screen comes
out about one TCP IC
quantity or more
Unusual screen comes
out about 1/2 of screen
or equal distances of
all screen
Unusual screen comes
out about 4/14 quantity
of screen or 3/14
Unusual screen comes
out about 1/2 quantity
of screen
Unusual screen comes
out about all screen
- 12 -
2-4. Regular Stripe is Generated about the
Quantity of one Data TCP IC or more
(1) In case of generating regular stripe about the quantity of one
Data TCP IC or more, check the connection of connector or
foreign.
(2) Confirm the connection connector/foreign of XB/D or CTRL
B/D to X B/D correspond to unusual screen.
(3) Replace relevant XB/D or CTRL B/D.
[ [ Screen Display Form
It comes out partial field about
the quantity of one IC or more
or It may come out together
at other field of screen.