50PK550-UD, 50PK550-UE (CHASSIS:PU01A) - LG TV Service Manual (repair manual). Page 9

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- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This spec sheet is applied to all of the PU01A Chassis.
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 
c
C  ± 5  cC  of  temperature  and  65  %  ± 10  %  of  relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep 
100 V ~ 240 V, 50 / 60 Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15 cC
- In case of keeping module is in the circumstance of 0 cC,
it should be placed in the circumstance of above 15 cC for
2 hours 
- In case of keeping module is in the circumstance of below
-20 cC, it should be placed in the circumstance of above
15 cC for 3 hours.
1) Press the POWER ON KEY on R/C for adjustment.
2) Press the ADJ KEY on R/C and enter EZ ADJUST.
Select “4. WHITE PATTERN” by using 
D
/
E
(CH +/-) and
select “White” by using 
F
/
G
(VOL +/-)
- Set is activated HEAT run without signal generator in this
mode.
- Single  color  pattern  (RED  /  BLUE  /  GREEN)  of  HEAT
RUN MODE uses to check panel.
Caution: If  you  turn  on  a  still  screen  more  than  20  minutes
(Especially digital pattern, cross hatch pattern), an after
image  may  be  occur  in  the  black  level  part  of  the
screen.
3. PCB assembly adjustment method
* Caution: Set  up  “RF  mode(noise)”  after  PCB  assembly
adjustment.
*Download
(1) Execute  ISP  program  “Mstar  ISP  Utility”  and  then  click
“Config” tab.
(2) Set as below, and then click “Auto Detect” and check “OK”
message
If display “Error”, Check connect computer, jig, and set.
(3) Click  “Connect”  tab.  If  display  “Can’t  ”,  Check  connect
computer, jig, and set.
(4) Click  “Read”  tab,  and  then  load  download  file(XXXX.bin)
by clicking “Read”
(5) Click “Auto” tab and set as below
(6) Click “Run”.
(7) After downloading, check “OK” message.
(1)
(3)
(2)
OK
vr
Please Check the Speed :
To use speed between from 200KHz to 400KHz
(4)
filexxx.bin
(5)
(6)
(7) ÉÉÉ.OK
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