Hitch Diagnosis Following Display Condition; All Or 1/2 Of The Screen Doesn't Be Shown; Screen Doesn't Be Shown As Data Tcp - Daewoo DPP-42A1LASB Service Manual

2. Hitch Diagnosis Following
Display Condition

2-1. All or 1/2 of the screen doesn't be shown

(1) In case of all of the screen doesn't be shown, Confirm the
8pin connection of X B/D to Z B/D is well plugged in which
is correspond
(2) In case of 1/2 of the screen doesn't be shown
① XR B/D
- Confirm the 60pin connection of CTRL B/D to XR B/D
is well plugged in which is correspond
② XL B/D
- Confirm the 5pin connection of XR B/D to XL B/D is
well plugged in which is correspond
- Confirm the 60pin connection of CTRL B/D to XL B/D
is well plugged in which is correspond
(3) Replace relevant X B/D.
[ [ Relationship between screen and X B/D
Screen
Left of the Screen 1/2 <-->
Right of the Screen 1/2 <-->
[ [ Screen Display Form
Left of the Screen(1/2) Right of the Screen(1/2)
Display
Not display
[ [ 1/4 of the screen doesn't be shown
Equality with 2-1
2-2. The screen doesn't be shown as Data
[ [ Example of the screen display form
X B/D
Right X B/D
Left X B/D
[ [ How to examine Data TCP IC
- 11 -
TCP
(Include not be shown part of DataTCP quantity or a part)
(1) The problem between Data TCP and X B/D is more
possible that the screen is not be shown as data TCP.
(2) Confirm the connector of Data TCP is well connected to X
B/D. Correspond to the part that screen is not showing
(3) Confirm whether the Data TCP is failed.
(Inclusion examination with the naked eye(IC Burnt and
others)
① IC is Fail: Replace the Module
② In case of shorting the X B/D by foreign or PCB pattern
is open: When TCP IC is not Fail, replace the X B/D.
(Anything of the 14 Data TCP can be shown beside below
pictures)
● Change '①(Va Power)' into CATHOD, '②(GND)' into
ANODE and then examine the Diode to the forward
or reverse direction.
● Burnt of '③(IC)' and others examine with the naked
eye.
: All
: Partial
: not at all