DOWNLOAD LG 32LD310 (CHASSIS:LP92D) Service Manual ↓ Size: 3.9 MB | Pages: 33 in PDF or view online for FREE

Model
32LD310 (CHASSIS:LP92D)
Pages
33
Size
3.9 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32ld310-chassis-lp92d.pdf
Date

LG 32LD310 (CHASSIS:LP92D) Service Manual ▷ View online

5. Chroma& Brightness (Optical)
(1) LCD Module
The Color Coordinates check condition 
- 50 cm from the surface, Full White Pattern
- Picture mode Vivid
- 7 -
No.
Item Min.
Typ.
Max.
Unit
Maker
Remark
1.
Luminance
400
500
cd/m
2
(W/O PC mode)
2.
VIew angle (R/L, U/D)
178/178
degree
CR > 10
3.
Color Coordinates
White
X
Typ 
0.279
Typ 
Y
-0.03
0.292
+0.03
RED
X
0.636
Y
0.335
Green
X 0.291
Y 0.603
Blue
X 0.146
Y
0.061
4.
Contrast ratio
900:1
1200:1
5. Luminance 
Variation 
1.3
6. Component Video Input (Y, P
B
, P
R
)
No.
Specification
Proposed
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
1
720*480
15.73
59.94
13.500
SDTV, DVD 480I(525I)
2
720*480
15.75
60.00
13.514
SDTV, DVD 480I(525I)
3
720*576
15.625
50.00
13.500
SDTV, DVD 576I(625I) 50 Hz
4
720*480
31.47
59.94
27.000
SDTV 480P
5
720*480
31.50
60.00
27.027
SDTV 480P
6
720*576
31.25
50.00
27.000
SDTV 576P 50 Hz
7
1280*720
44.96
59.94
74.176
HDTV 720P
8
1280*720
45.00
60.00
74.250
HDTV 720P
9
1280*720
37.50
50.00
74.25
HDTV 720P 50 Hz
7. HDMI Input(DTV)
No.
Specification
Proposed
Remarks
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
1
720*480
15.73
59.94
13.500
SDTV, DVD 480I(525I)
Spec. out
2
720*480
15.75
60.00
13.514
SDTV, DVD 480I(525I)
but display
3
720*576
15.625
50.00
13.500
SDTV, DVD 576I(625I) 50 Hz
4
720*480
31.47
59.94
27
SDTV 480P
5
720*480
31.5
60.00
27.027
SDTV 480P
6
720*576
31.25
50.00
27
SDTV 576P
7
1280*720
44.96
59.94
74.176
HDTV 720P
8
1280*720
45
60.00
74.25
HDTV 720P
9
1280*720
37.5
50.00
74.25
HDTV 720P
- 8 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV, LP92A
chassis.
2. Specification
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-220 V~
50 / 60 Hz.
(5) Before adjustment, execute Heat-Run for 5 minutes at RF
no signal.
3. Adjustment items
3.1. PCB assembly adjustment items 
(1) Download the MSTAR main software(IC604, Mstar ISP Utility)
- Using D/L Jig
(2) Input Tool-Option
(3) ADC Calibration - Component
(4) Check SW Version.
3.2. SET assembly adjustment items
(1) Input Area option
(2) Adjustment of White Balance : Auto & Manual
(3) Input Tool-Option/Area option
(4) Preset CH information
(5) Factoring Option Data input
4. PCB assembly adjustment method
4.1. Mstar Main S/W program download
- Using D/L Jig
(1) Preliminary steps
1) Connect the download jig to D-sub(RGB) jack
(2) Download steps
1) Execute ‘ISP Tool’ program, the main window(Mstar ISP
utility Vx.x.x) will be opened
2) Click the “Connect” button and confirm “Dialog Box”
3) Click the “Config” button and Change speed
I2C Speed setting : 350Khz~400Khz
4) Read and write bin file.
Click “(1)Read” tab, and then load download file
(XXXX.bin) by clicking “Read”.
1
Filexxx.bin
1
Filexxx.bin
5) Click “(2)Auto” tab and set as below
6) Click “(3)Run”.
7) After downloading, you can see the “(4)Pass” message.
* If TV is Turn On, Check the updated SW Version and
Tool Option.
4.2. Input tool option.
Adjust tool option refer to the BOM.
- Tool Option Input : PCBA Check Process
- Area Option Input : Set Assembly Process
After Input Tool Option and AC off
Before PCBA check, you have to change the Tool option and
have to AC off/on (Plug out and in)
(If missing this process, set can operate abnormally)
(1) Profile : Must be changed the option value because being
different with some setting value depend on
module maker, inch and market 
(2) Equipment : adjustment remote control.
(3) Adjustment method
- The input methods are same as other chassis.(Use IN-
START Key on the Adjust Remote control.)
(If not changed the option, the input menu can differ the
model spec.)
Refer to Job Expression of each main chassis ass’y
(EBTxxxxxxxx) for Option value  
[Caution]
- Don’t Press “IN-STOP” key after completing the function
inspection.
- Don’t connect HDMI cable when downloading the EDID.
If the cables are connected, Downloading of EDID could
be failed.
4.3. EDID Data
* 32LD310 <HDMI : 256 Byte>
(1) EDID D/L method
1) Press the In-start key
2) Move to the System Control2 and Press the OK(   )
3) Move to the EDID D/L and press the right direction
key(
G
)
4) After about a few seconds, appear “OK’, then complete.
5) Press the OK key(   ).
6) Press the EXIT key.
4.4. ADC Calibration-Component
- Using External pattern
(1) Required Equipments
- Remote control for adjustment
- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator
(2) Process
1) Change the Input to Component mode.
2) Input the Component 720P@60 Hz 100 % Color Bar
YPbPr signal into Component
(MSPG-925F Model: 217 / Pattern: 65)
3) Press ADJ key on R/C for adjustment.
4) Enter Password number. Password is “0 0 0 0”.
5) Select “Auto-RGB” and press OK(   ) key.
6) ADC adjustment is executed automatically .
7) When ADC adjustment is finished, this OSD appear
“COMPONENT-OK”
(3) Confirmation
1) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction.
2) We confirm whether “0xF3 (offset), 0xF4 (gain)” address
of EEPROM “0xBC” is “0xAA” or not.
3) If “0xF3”, “0xF4” address of EEPROM “0xBC” isn’t
“0xAA”, we adjust once more.
4) We can confirm the ADC values from “0x06~0x0B”
addresses in a page “0xBC”.
- 9 -
1
Filexxx.bin
 
- 10 -
4.5. Check SW Version
(1) Method
1) Push In-star key on Adjust remote control.
2) SW Version check
Check “Main : Vx.xx” - LD310
5. SET assembly adjustment method
5.1. Input Area-Option
(1) Profile : Must be changed the Area option value because
being different of each Country’s Language and
signal Condition.
(2) Equipment : adjustment remote control.
(3) Adjustment method 
- The input methods are same as other chassis.(Use IN-
START Key on the Adjust Remote control.)
Refer to Job Expression of each main chassis ass’y
(EBTxxxxxxxx) for Option value.
5.2. Adjustment of White Balance
- Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
- Principle : To adjust the white balance without the saturation,
Fix the one of R/G/B gain to 192 (default data)
and decrease the others.
- Adjustment mode : Three modes - Cool / Medium / Warm
(Medium data is automatically calibrated by the Cool data)
- Required Equipment
1) Remote control for adjustment 
2) Color Analyzer : CA100+ or CA-210 or same product -
LCD TV(ch : 9)
(should be used in the calibrated ch by CS-1000)
3) Auto W/B adjustment instrument(only for auto adjustment)
5.2.1. Connecting diagram of equipment for measuring
(For Automatic Adjustment)
* LP92A Support I2C Interface For ADC/DDC Adjustment.
(1) Enter the adjustment mode of DDC
- 22Set command delay time : 50ms
- Enter the DDC adjustment mode at the same time heat-
run mode when pushing the power on by power only key
- Maintain the DDC adjustment mode with same condition
of Heat-run => Maintain after AC off/on in status of Heat-
run pattern display)
(2) Release the DDC 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.
- Need to transmit the aging off command to TV set after
finishing the adjustment.
- Check DDC adjust mode release by exit key and release
DDC adjust mode)
(3) Enter the adjust mode of white balance
- Enter the white balance adjustment mode with aging
command (F3, 00, 00)
(4) Release the adjust mode of white balance
- Release the white balance adjustment mode with aging
command(F3, 00, FF)
* Luminance min value is 150cd in the Cool/Medium/Warm
mode(For LCD)
5.3. Adjustment of White Balance
(for Manual adjustment)
(1) Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000
(2) Operate the zero-calibration of the CA100+ or CA-210,
then stick sensor to the module when adjusting.
(3) For manual adjustment, it is also possible by the following
sequence.
1) Select white pattern of heat-run by pressing “POWER
ON” key on remote control for adjustment then operate
heat run longer than 15 minutes. (If not executed this
step, the condition for W/B may be different.)
2) Push “Exit” key.
3) Change to the AV mode by remote control.
4) Input external pattern (85 % white pattern)
5) Push the ADJ key -> Enter “0000” (Password)
6) Stick the sensor to the center of the screen and select
each items (Red/Green/Blue Gain and Offset) using
D
/
E
(CH +/-) key on R/C..
7) Adjust R/ G/ B Gain using 
F
/
G
(VOL +/-) key on R/C.
8) Adjust three modes all (Cool/ Medium/ Warm) : Fix the
one of R/G/B gain and change the others
9) When adjustment is completed, Enter “COPY ALL”.
10) Exit adjustment mode using EXIT key on R/C.
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