LG 32PC5DVH-UF (CHASSIS:PP78D) Service Manual ▷ View online
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3-3. Function Check
(1) Check display and sound
1) Check Input and Signal items. (cf. work instructions)
1. TV
2. AV (CVBS/ S-Video)
3. COMPONENT (480i)
4. RGB (PC : 1024 x 768 @ 60hz)
5. HDMI
6. PC Audio In and H/P Out
2. AV (CVBS/ S-Video)
3. COMPONENT (480i)
4. RGB (PC : 1024 x 768 @ 60hz)
5. HDMI
6. PC Audio In and H/P Out
* Display and Sound check is executed by Remote
controller.
4. EDID
[
Caution
(1) Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
- Digital EDID : Pin3 exists
(2) Never connect HDMI & DVI-D & DVI-A Cable at the same
time.
(3) Use the proper cables below for EDID Writing
4-1. EDID Data
(1) 32PC5DV ANALOG(128 Bytes )
O
BLOCK1 (128BYTE)
(2) 32PC5DV HDMI(256 Bytes)
O
BLOCK1 (128BYTE)
O
BLOCK2 (128BYTE)
(2) 32PC5DVC HDMI(256 Bytes)
O
BLOCK1 (128BYTE)
O
BLOCK2 (128BYTE)
Caution: Each PCB assembly must be checked by check JIG set.
(Because power PCB Assembly damages to PDP Module,
especially be careful)
(Because power PCB Assembly damages to PDP Module,
especially be careful)
For RGB EDID
For HDMI EDID
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Hex Data
1E6D
01
03
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ⓐ
Product ID
ⓑ
Serial No
=> Controlled on production line
ⓒ
Month, Year
=> Controlled on production line:
ex) Monthly: ‘11’ -> ‘0B’
Year: ‘2006’ -> ‘10’
ⓓ
Model Name/Monitor Name
ⓔ
Checksum(7EH)
=> Changeable by total EDID data
4-2. Required Test 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
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable.
4-3. Preparation for Adjustment
(1) As above (Fig. 1), Connect the Set, EDID Download Jig,,
PC & Cable
(2) Turn on the PC & EDID Download Jig. And Execute the
S/W : EDID TESTER Ver.2.5
(3) Set up the S/W option
Repeat Number : 5
Device Address : A0
PageByte : 8
Device Address : A0
PageByte : 8
(4) Power on the Set
4-4. Sequence of Adjustment
DDC data of Analog-RGB
(1) Init the data
(2) Load the EDID data.(Open File).
(3) Set the S/W as below.
TV set
or
Main B/D
(Fig. 1) Connection Diagram of DDC Download
Open File
Open File
[Analog – RGB :
PP78D_RGB.ANA ]
[Digital – HDMI :
PP78D_HDMI.DVI ]
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(4) Push the “Write Data & Verify” button. And confirm “Yes”.
(5) If the writing is finished, you will see the “ OK” message.
5. HDCP
(High-Bandwidth Digital Contents Protection)
(1) Connect D-sub Signal Cable to D-Sub Jack
(2) Input HDCP key with HDCP-key- in-program
(3) HDCP Key value is stored on EEPROM(AT24C512) which
(2) Input HDCP key with HDCP-key- in-program
(3) HDCP Key value is stored on EEPROM(AT24C512) which
is 80~A1 addresses of 0xA0~0xA2 page
(4) AC off/ on and on HDCP button of MSPG925 and confirm
whether picture is displayed or not of using MSPG925
(5) HDCP Key value is different among the sets
6. Adjustment of White Balance
6-1. 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 80 and decrease
the others.
the others.
6-2. Adjustment Mode
Two modes of Cool and Warm
(Medium data is automatically calibrated by the cool data)
(Medium data is automatically calibrated by the cool data)
6-3. Required Equipment
(1) Remote controller for adjustment
(2) Color Analyzer : CA100, CA-100+, CA-210 or same
(2) Color Analyzer : CA100, CA-100+, CA-210 or same
product
- PLASMA TV(ch : 10)
- PLASMA TV(ch : 10)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
6-4. Connecting Diagram of Equipment
for Measuring
(For Automatic Adjustment)
(1) Enter the adjustment mode of the white balance
1) Enter the white balance adjustment mode at the same
time heat-run mode when pushing the power on by
power only key
power only key
2) Maintain the white balance adjustment mode with same
condition of Heat-run -> Maintain after AC off/on in
status of Heat-run pattern display
status of Heat-run pattern display
(2) Release the white balance adjustment mode
1) Release the adjust mode after AC off/on or std-by off/on
in status of finishing the Hear-run mode
2) Release the Adjust mode when receiving the aging off
command(F3 00 00) from adjustment equipment
3) Need to transmit the aging off command to TV set after
finishing the adjustment
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O
Standard color coordinate and temperature when using the
CA-100+ or CA210 equipment
O
Synchronization relation between PSM and CSM
(3) DDC adjustment Command set
[
R/G/B GAIN max value : 80
6-5. Adjustment of White Balance for
Manual Adjustment
(1) Adjustment mode: Two modes of Cool (Dynamic) and
Warm(Mild)
(Medium data is automatically calibrated by the cool data)
(Medium data is automatically calibrated by the cool data)
(2) Color analyzer(CA110) should be used in the calibrated ch
by CS-1000(PDP : CH10)
(3) Operate the zero-calibration of the CA-110 then stick
sensor to the module when adjusting.
(4) 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 will be
differ )
heat run longer than 15 minutes.
(If not executed this step, the condition for W/B will be
differ )
2) Changing to the av mode by remote control.(av mode)
3) Display the internal pattern of the Mstar IC by pushing
3) Display the internal pattern of the Mstar IC by pushing
the ADJ.
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 two modes of Cool(Dynamic) and Warm(Mild) as
below figure.
(Fix the one of R/G/B and change the others)
(Fix the one of R/G/B and change the others)
1. Push the one time the in-start key : Cool
2. Push the two more the in-start key : Warm
2. Push the two more the in-start key : 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).
First adjust the coordinate much away from the target
value (x, y).
1. x, y > target
Decrease the R, G.
2. x, y < target
1) First decrease the B gain,
2) Decrease the one of the others.
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
- 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
Color Coordinate
X
Y
0.283±0.003
0.293±0.003
0.329±0.003
11,000K
9,300K
6,500K
0.000
0.000
0.003
0.276±0.003
0.285±0.003
0.313±0.003
Cool
Medium
Warm
Mode
Temp
3
uv
CSM
Remark
Cool
Normal
Warm
Dynamic
Standard
Mild
PSM
Adjustment
Aging On/Off
Input select
R GAIN
G GAIN
B GAIN
R GAIN
G GAIN
B GAIN
R GAIN
G GAIN
B GAIN
CMD(HEX)
F3
F4
16
18
1A
16
18
1A
16
18
1A
ADR
00
00
00
01
02
VALUE
255/00
00 - 255
00 - 255
00 - 255
00 - 255
00 - 255
00 - 255
00 - 255
00 - 255
00 - 255
Detail
OO : OFF
01 : ON
FF : WB Ready
0x10 : TV
0x20 : AV1
0x21 : AV2
0x23 : AV3
0x40 : Component1
0x50 : RGB DTV
0x60 : RGB PC
0x90 : HDMI1 DTV
GAIN adjustment
CSM COOL
GAIN adjustment
CSM NORMAL
GAIN adjustment
CSM WARM
Color Coordinate
X
Y
0.283±0.003
0.293±0.003
0.329±0.003
11,000K
9,300K
6,500K
0.000
0.000
0.003
0.276±0.003
0.285±0.003
0.313±0.003
Cool
Medium
Warm
Mode
Temp
3
uv
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