Read LG C60PB120-WA (CHASSIS:PC21A) Service Manual online
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5.4. Test of RS-232C control.
- Press In-Start button of Service Remocon then set the
“4.Baud Rate” to 115200. Then check RS-232C control and
5.5. Selection of Country option.
model (Not allowed Korean model). It is selection of Country
about Rating and Time Zone.
■ Models: All models which PU11A Chassis (See the first
page.)
■ Press “In-Start” button of Service Remocon, then enter the
“Option” Menu with “PIP CH-“ Button
■ Select one of these three (USA, CANADA, MEXICO) de-
pends on its market using “Vol. +/-“button.
* Caution : Don’t push The INSTOP KEY after completing the
function inspection.
* Caution : Inspection only PAL M / NTSC
6. Check the activity for Touch Pen
(Pen Touch model only)
(1) Start the Touch mode with hot key on Remote control-
ler when Power only mode(Green key which is middle of
Remote controller)
(2) Using the 2x5 Matrix located right of TV (Using the right
hand consider of little lighting at right position of the panel)
(3) (3) 2X5 Matrix construction : When the screen is divided
by fixel in 16:9, matrix is applicable 14th,15th fixel in
row, 3rd ~ 7th fixel in colume. And they are numbered
from 1 to 10. (TV & Jig Monitor is numbered samely.)
(4) When touch the No.3 division of TV, check the blinking of
No.3 division at the JIG Monitor.
7. GND and ESD Testing
7.1. Prepare GND and ESD Testing.
■ Check the connection between set and power cord
7.2. Operate GND and ESD auto-test.
■ Fully connected (Between set and power cord) set enter the
Auto-test sequence.
■ Connect D-Jack AV jack test equipment.
■ Turn on Auto-controller(GWS103-4)
■ Start Auto GND test.
■ If its result is NG, then notice with buzzer.
■ If its result is OK, then automatically it turns to ESD Test.
■ Operate ESD test
■ If its result is NG, then notice with buzzer.
■ If its result is OK, then process next steps. Notice it with
Good lamp and STOPER Down.
7.3. Check Items.
■ Test Voltage
● GND: 1.5KV/min at 100mA
● Signal: 3KV/min at 100mA
■ Test time: just 1 second.
■ 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.
■ Leakage current: Set to 0.5mA(rms)
7.4. POWER PCB Ass’y Voltage adjustment
(Va, Vs voltage adjustment)
7.4.1. Test equipment :
D.M.M 1EA
7.4.2. Connection Diagram for Measuring
: refer to fig.1
<60C4 PSU>
(fig.1) PCB Assy Voltage adjustment
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