LG 55LB6500, Service Manual

Page: 13 / 122

ADJUST ENT
INSTRUCTION
1
Application
This
spec
sheet
applies
to
LA42B
Chassis
applied
LED TV
all
models
manufactured
in
TV
factory
2
Specification
1
Because
this
is
not
a
hot
chassis
it
is
not
necessary
to use
an isolation
transformer
However
the use of isolation
transformer
will help protect
test
instrument
2
Adjustment
must be done
in the correct
order
3
The
adjustment
must be
performed
in the
circumstance
of
25
5
C
of
temperature
and
65
10
of relative
humidity if
there
is
no
specific designation
4
The
input voltage
of the receiver
must
keep
100240V
5060Hz
5
At
first
Worker must
turn
on
the
SET
by
using
Power
Only
key
6
The
receiver
must be
operated
for
about 5 minutes
prior
to
the
adjustment
when
module
is
in the
circumstance
of
over
15
C
In
case of
keeping
module
is
in the
circumstance
of
0
C
it
should be
placed
in the
circumstance
of
above
15
C
for
2
hours
In
case
of
keeping
module
is
in the
circumstance
of
below
20 C
it
should be
placed in the
circumstance
of
above
15
C
for
3 hours
X
Caution
When
still
image is
displayed
for
a
period
of
20 minutes
or
longer especially
where
WB
scale
is strong
Digital
pattern
13ch
andor
Cross hatch
pattern
09ch
there
can
some
afterimage
in the black level
area
3
Adjustment
items
31
Main
PCBA
Adjustments
1
ADC
adjustment
ADC
adjustment
is
OTP
Auto
ADC
2
EDID
download HDMI
32
Final assembly adjustment
1
White
Balance
adjustment
2
RS232C
functionality
check
3
Factory
Option
setting per
destination
4
Shipment
mode
setting
InStop
5
GND
and
HIPOT
test
33
Appendix
1Tool
option
menu USB
Download
SVV
Update
Option
and
Service
only
2
Manual
adjustment
forADC
calibration
and White balance
3
Shipment
conditions
Channel
preset
4
MAIN PCBA
Adjustments
41
ADC
Calibration
An
ADC
calibration
is
not necessary
because
MAIN
SoC
LGExxxx
is
already
calibrated from IC
Maker
if
it
needs
to
adjust
manually
refer
to
appendix
42 MAC
Address ESN
Key and Widevine
Key
download
421
Equipment Condition
1
Play file
keydownloadexe
422
Communication
Port connection
1
Key
Write
Com 1234
and 115200 Baudrate
2
Barcode
Com
1234
and 9600
Baudrate
423
Download process
1
Select the
download items
2 Mode
check
Online Only
3
Check
the test
process
US
Canada models DETECT
MAC
WRITE
WIDEVINE
WRITE
Korea
Mexico models
DETECT MACWRITE
WIDEVINE
WRITE
4
Play
START
5
Check
of result Ready
Test
OK
or
NG
424
Communication
Port connection
1
Connect
PCBA
Jig
RS232C
Port
PC
RS232C
Port
425
Download
1
US Canada
models 14Y
LCD TV
MAC
Widevine
ESN
Key
DTCP
Key
HDCP14
and
HDCP20
2
426
Inspection
In
INSTART menu
check these
keys
Copyright
n
2014
LG
Electronics Inc
All
rights
reserved 13
Only for training
and
service
purposes
Confidential
Business
Information
Subject
to Protective
Order
LGE
Internal
Use
Only
LGE910IT000143516