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- Check the connection between set and power cord

(1) Fully  connected  (Between  set  and  power  cord)  set  enter

the Auto-test sequence.

(2) Connect D-Jack AV jack test equipment.
(3) Turn on Auto-controller(GWS103-4)
(4) Start Auto GND test.
(5) If its result is NG, then notice with buzzer.
(6) If its result is OK, then automatically it turns to ESD Test.
(7) Operate ESD test
(8) If its result is NG, then notice with buzzer.
(9) If  its  result  is  OK,  then  process  next  steps.  Notice  it  with

Good lamp and STOPER Down.

(1) Test Voltage 

GND: 1.5KV/min at 100mA
Signal: 3KV/min at 100mA

(2) Test time: just 1 second.
(3) Test point

GND test: Test between Power cord GND and Signal cable
metal GND.
ESD  test:  Test  between  Power  cord  GND  and  Live  and
neutral.

(4) Leakage current: Set to 0.5mA(rms)

(1)Test equipment : D.M.M 1EA
(2) Connection Diagram for Measuring : refer to fig.1 

(1) Vs adjustment (refer fig.1)

1) Connect  +  terminal  of  D.M.M.  to  Vs  pin  of

P812(42”:P811),  connect  -terminal  to  GND  pin  of
P812(42”:P811)

2) After  turning  VR901,  voltage  of  D.M.M  adjustment  as

same  as  Vs  voltage  which  on  label  of  panel  left/top    (
deviation ; ±0.5V)

(2) Va adjustment (refer fig.1)                                               

1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect  +  terminal  of  D.M.M.  to  Va  pin  of

P812(42”:P811),  connect  -terminal  to  GND  pin  of
P811(42”:P812).

3) After  turning  VR502,voltage  of  D.M.M  adjustment  as

same  as  Va  voltage  which  on  label  of  panel  left/top
(deviation; ±0.5V)

.

V

R-Gain adjustment Value (default  128)

V

G-Gain adjustment Value (default  128)

V

B-Gain adjustment Value (default  128)

V

R-Offset adjustment Value (default  128)

V

G-Offset adjustment Value (default  128)

V

B-Offset adjustment Value (default  128)

V

Threshold Down Low

20

V

Threshold Up Low

23

V

Threshold Down High 70

V

Threshold Up High

75

- 13 -

< fig.1 : 50HD Power PCB Assy Voltage adjustment >

CENTER (DEFAULT)

Cool

Mid

Warm

R Gain

192

192

192

G Gain

192

192

192

B Gain

192

192

192

R Cut

64 

64

64  

G Cut

64

64

64

B Cut

64

64

64

V

Put the USB Stick to the USB socket

V

Press Menu key, and move OPTION 

V

Press “FAV” Press 7 times.

V

Select download file (epk file)

V

After download is finished, remove the USB stick.

V 

Press “IN-START” key of ADJ remote control, check the
S/W version.

CAUTION 
- DO  NOT  REMOVE  USB  MEMORY  CARD  FROM  USB  PORT

WHEN YOU FIND BELOW DESCRIPTION 

- " Do not remove the memory card from the port! " 

- 14 -

- 15 -

- 16 -

400

602

601

520

900

120

305

300

301

302

303

501

590

200

580

205

202

203

208

204

201

206

207

604

240

302

910

Many  electrical  and  mechanical  parts  in  this  chassis  have  special  safety-related  characteristics.  These
parts are identified by       in the Schematic Diagram and EXPLODED VIEW. 
It  is  essential  that  these  special  safety  parts  should  be  replaced  with  the  same  components  as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.

A2

A10

A9

LV1

A12