LG 50PZ550-ZA / 50PZ550A-ZA / 50PZ550N-ZA / 50PZ551-ZC / 50PZ552-ZD (CHASSIS:PD11A) Service Manual ▷ View online
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* Caution
- Color Temperature : COOL, Medium, Warm.
- One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
- One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
* Manual W/B process using adjusts Remote control.
(1) After enter Service Mode by pushing “ADJ” key,
(2) Enter White Balance by pushing “
(1) After enter Service Mode by pushing “ADJ” key,
(2) Enter White Balance by pushing “
G
” key at “. White
Balance”
(3) Stick the sensor to the center of the screen and select
each items(Red/Green/Blue Gain) using
D
/
E
(CH +/-) key
on R/C.
(4) Adjust R/G/B Gain using
F
/
G
(VOL +/-) key on R/C.
(5) Adjust three modes all(Cool/Medium/Warm) : Fix the one
of R/G/B Gain and Change the others.
(6) When the adjustment is completed, Enter “COPY ALL”.
(7) Exit adjustment mode using EXIT key on R/C.
(7) Exit adjustment mode using EXIT key on R/C.
* After You finish all adjustments, Press °
∞In-start°± button
and compare Tool option and Area option value with its
BOM, if it is correctly same then unplug the AC cable.
BOM, if it is correctly same then unplug the AC cable.
If it is not same, then correct it same with BOM and unplug
AC cable.
For correct it to the model’s module from factory JIG model.
AC cable.
For correct it to the model’s module from factory JIG model.
* Push The “N STOP KEY” after completing the function
inspection. And Mechanical Power Switch must be set “ON”.
* To check the coordinates of White Balance, you have to
measure at the below conditions.
Picture mode : Vivid, Energy Saving : Off, Below the
Advanced control, Dynamic Contrast : Off, Dynamic Colour :
Off
Colour Temp.
Advanced control, Dynamic Contrast : Off, Dynamic Colour :
Off
Colour Temp.
-> Picture Mode change : Vivid ? Vivid(User)
7-3. DPM operation confirmation
(Only Apply for MNT Model)
* Check if Power LED Color and Power Consumption operate
as standard.
(1) Set Input to RGB and connect D-sub cable to set
(2) Measurement Condition: (100~240V@ 50/60Hz)
(3) Confirm DPM operation at the state of screen without
(2) Measurement Condition: (100~240V@ 50/60Hz)
(3) Confirm DPM operation at the state of screen without
Signal
7-4. DDC EDID Write (RGB 128Byte )
-> Not used any more, Use Auto D/L
(1) Connect D-sub Signal Cable to D-Sub Jack.
(2) Write EDID DATA to EEPROM (24C02) by using DDC2B
(2) Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.
(3) Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to
Insert Process in advance.
7-5 DDC EDID Write (HDMI 256Byte)
-> Not used any more, Use Auto D/L
(1) Connect HDMI Signal Cable to HDMI Jack.
(2) Write EDID DATA to EEPROM(24C02) by using DDC2B
(2) Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
(3) Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to
Insert Process in advance.
7-6. EDID DATA
(1) All Data : HEXA Value
(2) Changeable Data :
(2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
7-7. EDID DATA Auto Download
(1) Press Adj. key on the Adj. R/C,
(2) Select EDID D/L menu.
(3) By pressing Enter key, EDID download will begin
(4) If Download is successful, OK is display, but If Download is
(2) Select EDID D/L menu.
(3) By pressing Enter key, EDID download will begin
(4) If Download is successful, OK is display, but If Download is
failure, NG is displayed.
(5) If Download is failure, Re-try downloads.
* Caution: Never connect HDMI & D-sub Cable when EDID
downloaded.
O
Edid data and Model option download (RS232)
NO
Item
CMD 1 CMD 2 Data 0
Enter
download A
A
0 0 When transfer the
download
‘Mode In’
‘Mode In’
Mode
Carry the
command.
EDID data download
A
E
00 10 Automatically
Model
download
option
(The use of
download
a internal pattern)
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7-8. Manual Download
* Caution
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
- Digital EDID : Pin3 exists
* Caution:
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is
- Use the proper cables below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is
different from HDMI2.
7-9. EDID DATA
(1) 3D - FHD RGB EDID data
(2) 3D - FHD HDMI1 EDID data
(3) 3D - FHD HDMI2 EDID data
(4) 3D - FHD HDMI3 EDID data
ⓐ Vender ID
O
Checksum: Changeable by total EDID data.
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
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8. Checking the EYE-Q Operation.
(1) Press the EYE Key on the adjustment remote controller.
(2) Check the Sensor DATA ( It must be under 10) and keep
(2) Check the Sensor DATA ( It must be under 10) and keep
the data longer than 1.5s
(3) Check ‘OK’
(Sensor DATA 0 ~ 4095, Power Saving Mode 0 ~ 12)
* IF you press IN-STAP Button, change Green Eye-check OSD.
9. Ping TEST
(DVB T2 model only, PP11B/L)
* This test is to check Network operation.
(1) Connect LAN cable from Computer to TV Set
(2) When network operates normally, you can see “OK” on
(1) Connect LAN cable from Computer to TV Set
(2) When network operates normally, you can see “OK” on
Computer
10. 3D Function Test
(Pattern Generator MSPG-3233, HDMI mode NO. 371 ,
pattern No. 81)
(1) Please input 3D test pattern like below
(2) Enter 3D mode , then select side by side
(If you don’t wear a 3D Glasses, you will see the picture
like below)
like below)
(3) Put on the 3D Glasses, And block the right side of Glasses
(LEFT:OPEN[TEST], RIGHT:CLOSED)
And check the middle sides of picture , RED -> normal ,
others -> abnormal
And check the middle sides of picture , RED -> normal ,
others -> abnormal
(4) Put on the 3D Glasses, And block the right side of Glasses
(LEFT:CLOSED, RIGHT:OPEN[TEST])
And check the middle sides of picture , BLUE -> normal ,
others -> abnormal
And check the middle sides of picture , BLUE -> normal ,
others -> abnormal
11. Model name & Serial number
download
11-1. Model name & Serial number D/L
(1) Press “Power on” key of service remocon.(Baud rate :
115200 bps)
(2) Connect RS232 Signal Cable to RS-232 Jack.
(3) Write Serial number by use RS-232.
(4) Must check the serial number at signal test of customer
(3) Write Serial number by use RS-232.
(4) Must check the serial number at signal test of customer
support. (Refer to below).
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11-2. Signal TABLE
CMD
: A0h
LENGTH : 85~94h (1~16 bytes)
ADH
ADH
: EEPROM Sub Address high (00~1F)
ADL
: EEPROM Sub Address low (00~FF)
Data
: Write data
CS
: CMD + LENGTH + ADH + ADL + Data_1 + ... +
Data_n
Delay
: 20ms
11-3. Command Set
[Description]
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart,
0, Phase
Data write : Model Name and Serial Number write in
EEPROM,.
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart,
0, Phase
Data write : Model Name and Serial Number write in
EEPROM,.
11-4. Method & notice
(1) Serial number D/L is using of scan equipment.
(2) Setting of scan equipment operated by Manufacturing
(2) Setting of scan equipment operated by Manufacturing
Technology Group.
(3) Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0
by D-book 4.0
* Manual Download (Model Name and Serial Number)
- If the TV set is downloaded By OTA or Service man,
Sometimes model name or serial number is initialized.(
Not always)
Not always)
- There is impossible to download by bar code scan, so It
need Manual download.
1) Press the ‘instart’ key of ADJ remote controller.
2) Go to the menu ‘5.Model Number D/L’ like below photo.
3) Input the Factory model name(ex 42LD450-TA) or Serial
2) Go to the menu ‘5.Model Number D/L’ like below photo.
3) Input the Factory model name(ex 42LD450-TA) or Serial
number like photo.
4) Check the model name Instart menu ? Factory name
displayed (ex 42LD450-TA)
5) Check the Diagnostics (DTV country only) ? Buyer
model displayed (ex 42LD450)
12. CI+ Key Download
12-1. Download Procedure
(1) Press "Power on" button of a service R/C.(Baud rate :
115200 bps)
(2) Connect RS232-C Signal Cable.
(3) Write CI+ Key through RS-232-C.
(4) Check whether the key was downloaded or not at ‘In Start’
(3) Write CI+ Key through RS-232-C.
(4) Check whether the key was downloaded or not at ‘In Start’
menu. (Refer to below)
-> Check the Download to CI+ Key value in LGset.
12-2. Check the method of CI+ Key value
(1) check the method on Instart menu
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