DOWNLOAD LG 42PQ301R-ZB (CHASSIS:PP91B) Service Manual ↓ Size: 11.25 MB | Pages: 70 in PDF or view online for FREE

Model
42PQ301R-ZB (CHASSIS:PP91B)
Pages
70
Size
11.25 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pq301r-zb-chassis-pp91b.pdf
Date

LG 42PQ301R-ZB (CHASSIS:PP91B) Service Manual ▷ View online

(6) Select SW file (XXXX.bin) you want, push the “OK” Key.
(7) S/W download process is excuted automatically.
4. PCB Assembly Adjustment Method
4-1. Option Adjustment Following BOM 
Tool Option
Area Option
Option 1
Option 2
Option 3(Available for EU & Non EU model)
*  Profile:  Must  be  changed  the  option  value  because  being
different  with  some  setting  value  depend  on  module,  inch
and market 
* Equipment : Adjustment Remote Controller
(1) Push the IN-START key in the Adjust R/C.
(2) Enter Password number. The value of Password is “0 0 0
0”.
(3)  Input  the  Option  Number  that  was  specified  in  the  BOM,
into the Shipping area.
(4)  Select  “Tool  Option/  Area  Option”  by  using 
D
/
E
(CH+/-)
key, and press the number key(0~9) consecutively
ex)  If  the  value  of  Tool  Option1  is  4,  input  the  data  using
number key “4” (Fig. 3)
Caution:  Don’t  Push  “IN-STOP”  key  after  PCB  assembly
adjustment.
(5) EDID D/L Method
After  software  D/L  or  PCBA  manufacturing,  you  can
download EDID Data.
When  you  adjust  Tool  Option,  H6  Model  EDID  download
process is executed automatically
* If the model don’t have HDMI 3, HDMI 3 will be disappeared
at OSD Window.
Caution: When you adjust tool option, don’t connect HDMI or D-
sub cable. 
If  you  connect  some  cable,  EDID  D/L  process  will  be
failed. 
(6) Adjustment method    
Before PCBA check, have to change the Tool option and Area
option  
[ About PDP
After  done  all  adjustments,  Press  IN-START  button  and
compare Tool option and Area option value with its BOM, if it
is  correctly  same  then  Change  “RF  mode”  and  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.
[ Don’t push The IN-STOP KEY after completing the function
inspection.
- 10 -
..
3.09
5
..
MODEL : XXXXXX     Module : XXXX
S/W Ver. : X.XX          ROM : XXXXXXX
UTT                X           Temp : xxxxx : Celsius
ADC CAL.
RGB :VV
    OK  
Component SDV
    OK 
Component HDV
    OK 
EDID    RGB(OK)  HDMI1(NG)  HDMI2(NG)  HDMI3(NG)
Tool OptionV    V
   
4
Area OptionV   V
  40V
Option 1V
                      17
Option 2V
                      40
..
MODEL : XXXXXX     Module : XXXX
S/W Ver. : X.XX          ROM : XXXXXXX
UTT                X           Temp : xxxxx : Celsius
ADC CAL.
RGB :VV
    OK  
Component SDV
    OK 
Component HDV
    OK 
EDID    RGB(OK)  HDMI1(OK)  HDMI2(OK)  HDMI3(OK)
Tool OptionV    V
   
4
Area OptionV   V
  40V
Option 1V
                      17
Option 2V
                      40
( Fig. 3)
5. EDID(The Extended Display
Identification Data)  
Originally  H6(PP91A/B)  Model  EDID  download  process  is
executed when you adjust Tool Option.
[ Caution
- Use the proper signal cable for EDID Download
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing
5-1. Profile:
To be possible for plug and play
5-2. Equipment
(1)  Adjusting  PC  with  S/W  for  writing  EDID  Data.(S/W:  EDID
TESTER Ver.2.5)
(2) A Jig for EDID Download
(3)  Cable  :  Serial(9Pin  or  USB)  to  D-sub  15Pin  cable,  D-sub
15Pin cable, DVI to HDMI cable.
5-3. Connection Structure
Caution: Never connect HDMI & D-SUB Cable at the same time. 
5-4. EDID Data 
O
WXGA EDID DATA(50inch)
<Analog(RGB) : 128bytes>
<HDMI 1 : 256bytes>
<HDMI 2 : 256bytes>
<HDMI 3 : 256bytes> SIDE HDMI(HDMI 3) is adjusted above 
60Tool model
O
XGA EDID DATA(42inch)
<Analog(RGB) : 128bytes>
- 11 -
Connection Diagram of EDID
<HDMI 1 : 256bytes>
<HDMI 2 : 256bytes>
<HDMI 3 : 256bytes> SIDE HDMI(HDMI 3) is adjusted above 
60Tool model
6. HDCP(High-Bandwidth Digital 
Contents Protection) Download
HDCP download process is deleted in H6 models
In H6 models, it is usimg the EEPROM masking HDCP Key
7. Manual ADC Adjustment 
(Component 1, RGB) 
[Caution]
- Do not connect external input cable
- Adjustment result is applied to SET On/Off later.
*  Adjustment  is  done  using  internal  ADC,  so  input  signal  is  not
necessary.
7-1. COMPONENT ADC (SD / HD) 
(1) Convert to Component1 input source.
(2) Press ADJ key on R/C for adjustment.
(3) Enter Password number. The value of Password is “0 0 0
0”.
(4) Select “0. ADC calibration” by using 
D
/
E
(CH +/-) and press
ENTER(
V
).
(5)  Start  ADC  adjustment  by  using 
F
/
G
(VOL  +/-)  or  press
ENTER(
V
).
(6) ADC adjustment is executed automatically .
When ADC adjustment is finished, this OSD appear.
7-2. RGB input ADC
Auto RGB Gain/Offset Adjustment
(1) Convert to PC in Input-source
(2) Press ADJ key on R/C for adjustment.
(3) Enter Password number. The value of Password is “0 0 0
0”.
(4) Select “0. ADC calibration” by using 
D
/
E
(CH +/-) and press
ENTER(
V
).
(5)  Start  ADC  adjustment  by  using 
F
/
G
(VOL  +/-)  or  press
ENTER(
V
).
(6) ADC adjustment is executed automatically .
When ADC adjustment is finished, this OSD appear.
Notice : After All mode check, set the Speaker Volume “0”.
- 12 -
RF input
NO SIGNAL or White noise
AV / Component / RGB input
NO SIGNAL
Notice : From this sentence, All working is mass production.
8. POWER PCB Assy Voltage
Adjustment
(Vs voltage Adjustment)
8-1. Test Equipment:
D.M.M 1EA
8-2. Connection Diagram for Measuring
Refer to (Fig. 4)
8-3. Adjustment Method 
(1) Vs Adjustment
1)  Connect  +  terminal  of  D.  M..M.  to  Vs  pin  of  P702,
connect -terminal to GND pin of P702.
2)  After  turning  VR901,  voltage  of  D.M.M  adjustment  as
same as Vs voltage which on label of panel right/top  (
deviation ; ±0.5V)
9. Adjustment of White Balance
9-1. Purpose and Principle for Adjustment 
of the Color Temperature
(1)  Purpose:  Adjust  the  color  temperature  to  reduce  the
deviation of the module color temperature.
(2)  Principle  :  To  adjust  the  white  balance  without  the
saturation,  Fix  the  one  of  R/G/B  gain  to  C0  and  decrease
the others.
(3) Adjustment mode: Two modes of Cool, Warm and Medium
9-2. Required Equipment
(1) Remote controller for adjustment 
(2) Color Analyzer : CA-100+ or CA-210 or same product
- PLASMA TV(ch : 10)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
- Do the white balance adjustment under the 10LUX
[ Notice:  When  using  the  Color  Analyzer  with  PDP,
recommend the CA-100 more than CA-210.
If CA-100 can not available, it is also good to use the CA-210.
(4) PC (for communication through RGB) 
(5) Pattern Generator (MSPG-925FA etc.)
-Before  white  balance,  press  the  ADJ  key  and  select  third
row like (Fig. 5)
-To enter White-balance mode, Enter Password Number “0
0 0 0” and  select third row. 
[ Caution: System control Host should be “DDC” for adjustment.
(6) Adjust W/B DATA, for all CSM, choose ‘COPY ALL’
9-3. Connecting Diagram of Equipment for 
Measuring
(For Automatic Adjustment) 
(Method 2, using RS-232C, You connect RS-232C Cable)
(1) Enter the adjustment mode of the white balance
- Enter the white balance adjustment mode at the same time
heat-run  mode  when  pushing  the  power  on  by  power  only
key
- 13 -
P811
Vs ADJ
VR901
(Fig. 4)
EZ ADJUST
0. ADC CALIBRATION  : TV
1. ADC ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN   : OFF
5. EDID D/L
(Fig. 5)
3. W/B ADJUST
ModeVVV
: TV
TEMPERATUREVV
: Medium
R-Gain.VVV
: 192
G-Gain.VVV
: 192
B-Gain.VVV
: 192
R-OffsetVVV
: 128
G-OffsetVVV
: 128
B-OffsetVVV
: 128
COPY ALL
(Fig. 6)
Method 2-(RS-232C)
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