DOWNLOAD LG 42PQ60R-TA (CHASSIS:PP91A) Service Manual ↓ Size: 17.62 MB | Pages: 29 in PDF or view online for FREE

Model
42PQ60R-TA (CHASSIS:PP91A)
Pages
29
Size
17.62 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pq60r-ta-chassis-pp91a.pdf
Date

LG 42PQ60R-TA (CHASSIS:PP91A) Service Manual ▷ View online

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
Mode
: TV
TEMPERATURE
: Medium
R-Gain.
: 192
G-Gain.
: 192
B-Gain.
: 192
R-Offset
: 128
G-Offset
: 128
B-Offset
: 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)
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