LG 50PC5D-ZB / 50PC5D1-ZD (CHASSIS:PD73A) Service Manual ▷ View online
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18-2. Insert the ‘SERIAL NUMBER’ &
‘MODEL NAME’
1) Check the original serial number.
(Check the Label on the Back Cover)
2) After change the Main Ass’y, Press the ‘ADJ button on the
Adjustment Remote control.
1. Choose the ‘OPTION4’
2. Insert the ‘MODEL NAME’ by navigation key.
3. Insert the original serial number on the ‘SERIAL
1. Choose the ‘OPTION4’
2. Insert the ‘MODEL NAME’ by navigation key.
3. Insert the original serial number on the ‘SERIAL
NUMBER’ MENU by navigation key.
* After All Setting, Turn Off TV SET-> On
19. ST DOWN LOAD
19-1. ST ROM DOWN LOAD
(1) Installation the ‘LG Term’
1) Extract to folder lgterm.zip.
(2) Download biz file using LG Term
1) Prepare the ‘ *.biz ‘ that you want to download on ST.
2) Connect TV set and PC by using RS232 cable, Turn on
2) Connect TV set and PC by using RS232 cable, Turn on
the TV.
3) SVC MENU Setting.
case1. Press the ‘Turbo Sound’ button on the
Adjustment Remote Control.
case 2. Press the ‘ADJ’ button.
1) Press the ‘System Control 2’ menu
2) Enter the ‘GProbe’ on the ‘RS-232 Host’
3) Enter ‘115200bps’ on the ‘Baud Rate’
4) Enter the ‘STi 5100’ on the ‘Download’
2) Enter the ‘GProbe’ on the ‘RS-232 Host’
3) Enter ‘115200bps’ on the ‘Baud Rate’
4) Enter the ‘STi 5100’ on the ‘Download’
* If you don’t have a Adjustment Remote Control.
‘Menu’ button on the Remote Control + ‘Menu’ button on
the Local Key during 7~8sec.
the Local Key during 7~8sec.
4) Execute ‘lgterm.exe’.
1. Select ‘Serial port’ on ‘Setup’ Menu.
2. Port’ should be connected with the TV SET by RS232.
2. Port’ should be connected with the TV SET by RS232.
5) TV SET DC Power OFF => ON.
1. Check the message like the Picture.
6) Insert ‘dn’ and Enter.
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7) When ‘Please Send the file’ appears, Press ‘ctrl’ + ‘s’.
8) When ‘Please Send the file’ appears, Press ‘ctrl’ + ‘s’.
9) Download takes 60sec ~ 120sec.
10) The End of DOWNLOAD
1. After Download successfully, you can see ‘EW EW
EW EW.
2. You can remove RS232 Cable and TV Power SET
OFF => ON
11) Change the mode.
1. Press the ‘ADJ’ button.
2. Press the ‘System Control 2’ menu.
3. Enter the ‘PC’ on the ‘RS-232 Host’.
4. Enter ‘115200bps’ on the ‘Baud Rate’.
5. Enter the ‘Cortez’ on the ‘Download.
2. Press the ‘System Control 2’ menu.
3. Enter the ‘PC’ on the ‘RS-232 Host’.
4. Enter ‘115200bps’ on the ‘Baud Rate’.
5. Enter the ‘Cortez’ on the ‘Download.
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TROUBLE SHOOTING GUIDE
1. Power Board
1-1. The whole flowchart which it follows in voltage output state
Start check
Manufacture enterprise
meaning of a passage
1. Check the Power Off
condition.
Doesn't the
screen whole come
out?
Is it identical
with Power Off
condition?
Yes
Yes
No
No
No
No
No
2. Check the Interface
signal condition.
Is the Interface
signal operated?
Yes
3. Check the St-by 5V
signal circuit.
Doesn't the
low pressure output
come out?
Doesn't the
St-by 5V signal
come out?
Yes
No
Yes
4. Check the 5V Monitor
signal circuit.
Doesn't the
5V Monitor signal
come out?
No
7. Check the VSC Vs-ON
signal
Doesn't the
high tension output
come out?
Doesn't the
VSC signal Vs-ON
come out?
Yes
No
Does
high tension
output voltage Drop
occur?
When the
Y B/D Module
input connector is
removed, does output
voltage drop
occur?
When the
Y, Z B/D Module
input connector is remove,
does Power Board hightension
output voltage Drop
occur?
Yes
No
No
9. Check the Power
Board Output high
tension circuit
Yes
10. Check the Z B/D
Module output circuit
Yes
When the
Z B/D Module
input connector is
removed, does output
voltage Drop
occurs?
11. Check the Y B/D
Module output circuit
Yes
Yes
8. Check the Vs, Va
voltage output circuit.
Doesn't the
Vs, Va voltage output
come out?
No
Yes
Yes
5. Check the VSC RL-ON
signal.
Doesn't the
VSC signal RL-ON
come out?
No
6. Check the VSC low
pressure output
Doesn't the
VSC low pressure
output come out?
No
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1-2. 50” Power Board Structure
(1) Pin Layout
(2) Pin Spec
ANALOG & DIGITAL BOARD
PDP MODULE
CN1
AC INLET
P1
P2
P3
P11
P12
AC
NC
AC
SMW250-013P
AC Det
RL-ON
STB 5V
GND
Vs-ON
5V Det
M5V-ON
STB 5V
GND
NC
6V
GND
3.4V-ON
SMW250-013P
19V
19V
GND
GND
6V
GND
3.4V
GND
12V
GND
SMW250-010P
3.4V
3.4V
GND
GND
6V
6V
GND
GND
12V
12V
GND
GND
SMW250-012P
5V
5V
GND
GND
YH396-04V
Va
Va
GND
GND
GND
GND
NC
Vs
Vs
Vs
YH396-10V
1
2
3
4
5
6
7
8
9
10
11
12
13
DESCRIPTION
NO
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