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

<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)
-  Maintain  the  white  balance  adjustment  mode  with  same
condition of Heat-run 
- Maintain after AC off/on in status of Heat-run pattern display
(2) Release the white balance adjustment mode
-  Release  the  adjust  mode  after  AC  off/on  or  std-by  off/on  in
status of finishing the Hear-run mode
-  Release  the  Adjust  mode  when  receiving  the  aging  off
command(F3 00 00) from adjustment equipment)
(3) Enter the adjust mode of white balance
-  Enter  the  white  balance  adjustment  mode  with  aging
command(F3, 00, FF)
9-4. Adjustment of White Balance for 
Manual Adjustment
(method 3) 
Adjustment  mode:  Three  modes  of  Cool,  Medium(Vivid)  and
Warm
- Equipment : 1) Color analyzer(CA100+, CA210) should be
used  in  the  calibrated  ch  by  CS-1000(PDP  :
CH10)
2) Adjustment remocon
-  For  manual  adjustment,  it  is  also  possible  by  the  following
sequence.
Operate the zero-calibration of the CA-100+ or CA-210, then
stick sensor to the module when adjusting.
(1) Select white pattern of heat-run by pressing “POWER ON”
key on remote control for adjustment then operate heat run
longer than 5 minutes. (recommend) 
(If  not  executed  this  step,  the  condition  for  W/B  will  be
different)
(2)  Changing  to  the  AV  mode  by  remote  control.(Push  front-
AV)
(3) Input external pattern(85% white pattern).
(4) Stick sensor to center of the screen and select each items
(Red/Green/Blue  Gain  and  Offset)  using 
D
/
E
(CH  +/-)  key
on R/C..
(5) Adjust R/ G/ B Gain using 
F
/
G
(VOL +/-) key on R/C.
(6)  Adjust  three  modes  of  Cool,  Medium(Vivid)  and  Warm  as
below figure.
(Fix the one of R/G/B and change the others)
- Push the “VOL + “ key : Cool, Medium, Warm
[ Refer to the below case to know what value is fixed.
[CASE]
First adjust the coordinate much away from the target value(x, y).
1. x, y > target
1) Decrease the R, G. 
2. x, y < target
1) First decrease the B gain, 
2) Decrease the one of the others.
- In case of decreasing the x, decreasing the R : fix G
- In case of decreasing the y , decreasing the G : fix R
3. x > target ,  y < target
1) First decrease B, so make y a little more than the target.
2) Adjust x value by decreasing the R
4. x < target ,  y > target
1) First decrease B, so make x a little more than the target.
2) Adjust x value by decreasing the G
(7)  When  adjustment  is  completed,  Exit  adjustment  mode
using EXIT key on R/C.
9-5. Connecting diagram of Equipment for 
Measuring
(For Automatic Adjustment) 
(method 1, using IIC, You connect RGB 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
-  Maintain  the  white  balance  adjustment  mode  with  same
condition of Heat-run 
- Maintain after AC off/on in status of Heat-run pattern display
(2) Release the white balance adjustment mode
-  Release  the  adjust  mode  after  AC  off/on  or  std-by  off/on  in
status of finishing the Hear-run mode
-  push  the  “power  on”  key(IIC  Mode)  on  Adjust  remote-
controller.
-  Release  the  Adjust  mode  when  receiving  the  aging  off
command(F3 00 00) from adjustment equipment)
(3) Enter the adjust mode of white balance
-  Enter  the  white  balance  adjustment  mode  with  aging
command(F3, 00, FF)
O
Color Temperature & Color Coordinates Setting
-  When  adjusting  the  Color  Temperature,  Color  Analyzer  CA-
210(Matrix  should  be  corrected  through  CH10  of  CS-1000)
should be used. When CA-210 have used, it don’t need to fit
the CH10.
-  Adjust  the  Color  Temperature  based  below  adjustment  color
coordinates.
O
Target Value CA-210(LCD : CH 9, PDP : CH10), CA-100(PDP)
- 14 -
+0.003
6,500K
Warm
+0.000
9,300K
Medium
+0.000
11,000K
Cool
0.276±0.002
0.285±0.002
0.293±0.002
0.329±0.002
0.313±0.002
0.283±0.002
Y
X
uv
Temp
Color coordinate
Mode
Method 1-(I
2
C)
(Standard  color  coordinate  and  temperature  when  using  the
CA-100+ or CA210 equipment)
O
Above  optical  characteristics  are  should  be  measured  by
following condition.
- 15 -
+0.003
6,500K
Warm
+0.000
9,300K
Medium
+0.000
11,000K
Cool
0.276±0.002
0.285±0.002
0.293±0.002
0.329±0.002
0.313±0.002
0.283±0.002
Y
X
uv
Temp
Color coordinate
Mode
O
DDC Adjustment Command Set 
[ R/G/B GAIN max value : C0
Adjustment
Adjustment
Adjustment
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