LG 42PM1M-UC (CHASSIS:RF-052C) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTIONS
4. POWER PCB Assy Voltage
Adjustments
(Va, Vs Voltage Adjustments)
4-1. Test Equipment :
D.M.M. 1EA
4-2.Connection Diagram for Measuring
Refer to Fig. 4
4-3. Adjustment Method for
P/No 3501V00221A B/D
(1) Va Adjustment
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D.M.M to Va pin of P805, connect
2) Connect + terminal of D.M.M to Va pin of P805, connect
- terminal to GND pin of P805.
3) After turning RV601, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)
(Deviation; ±0.5V)
(2) Vs Adjustment
1) Connect + terminal of D.M.M to Vs pin of P805, connect
– terminal to GND pin of P805.
2) After turning RV401, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)
(Deviation; ±0.5V)
5. EDID (The Extended Display
Identification Data)/ DDC (Display
Data Channel) Download
Data Channel) Download
5-1. 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(9 Pin or USB) to D-sub 15 Pin cable, D-sub
(3) Cable : Serial(9 Pin or USB) to D-sub 15 Pin cable, D-sub
15 Pin cable, DVI to HDMI cable
5-2. Setting of Device
5-3. Preparation for Adjustment
(1) As above Fig. 5, 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 S/W option
Repeat Number : 5
Device Address : A0
PageByte : 8
Device Address : A0
PageByte : 8
4) Power on the Set
5-4. Sequence of Adjustment
(1) DDC data of Analog-RGB
1) Init the data
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)
Va ADJ
RV601
P806
P805
P807
Va
GND
NC
VS
VS
DMM
+
-
P804
P801
P802
Vs ADJ
RV401
RV401
P803
(Fig. 4) Connection Diagram of Power Adjustment for Measuring
(Fig. 5) Connection Diagram of DDC Download
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ADJUSTMENT INSTRUCTIONS
2) Load the EDID data.(Open File)
3) Set the S/W as below.
4) Push the “Write Data & Verify”button. And confirm “Yes”.
5) If the writing is finished, you will see the “OK” message.
5) If the writing is finished, you will see the “OK” message.
6. Auto AV(CVBS) Color Balance
6-1. Requirement
This AV color balance adjustment should be performed befor
white Balance Adjustment
white Balance Adjustment
6-2. Required Equipment
(1) Remote controller for adjustment
(2) AV Pattern Generator:
(2) AV Pattern Generator:
802F Pattern Generator, Master(MSPG-925FA), etc
(Which has PAL Composite Video format output with
standard(1.0 Vpp) Vertical 100% Color Bar Pattern as Fig. 7.
(Which has PAL Composite Video format output with
standard(1.0 Vpp) Vertical 100% Color Bar Pattern as Fig. 7.
6-3. Method of Auto RGB Color Balance
(1) Input the PAL Composite Video (Fig. 7. 100% Color Bar
Pattern) into video input.
(RCA: AV1, SCART: AV3 Input, PAL: 50Hz, NTSC: 60Hz)
(RCA: AV1, SCART: AV3 Input, PAL: 50Hz, NTSC: 60Hz)
(2) Set the PSM to Standard mode in Picture menu.
(3) Press INSTAR key on R/C for adjustment.
(4) Press the
(3) Press INSTAR key on R/C for adjustment.
(4) Press the
G
(Vol. +) key operate to set, then it becomes
automatically.
(5) Auto-RGB OK means completed adjustment.
7. Adjustment of White Balance
7-1. Required Equipment
(1) Remote controller for adjustment
(2) Color Analyzer (CA-100 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
(4) AV Pattern Generator
(2) Color Analyzer (CA-100 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
(4) AV Pattern Generator
7-2. Connecting diagram of equipment for
measuring (For Auto Adjustment)
216 Level (85 IRE)
[Analog-RGB :
RF052ABC_RGB.ANA]
RF052ABC_RGB.ANA]
[Digital(HDMI) :
RF052ABC_HDMI.DVI]
RF052ABC_HDMI.DVI]
(Fig. 6) EDID DATA
(Fig. 7) Auto AV(CVBS) Color Balance Test Pattern
(Fig. 8) Connection Diagram of Auto W/B Adjustment
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ADJUSTMENT INSTRUCTIONS
W
Auto adjustment Map(RS-232C)
7-3. Adjustment of White Balance
(For Manual Adjustment)
O
Operate the zero-calibration of the CA-100, then stick
sensor to PDP module surface when you adjust.
O
For manual adjustment, it is also possible by the following
sequence.
(1) Select white pattern of heat-run mode by pressing power
on key on remote control for adjustment then operate heat
run more than 15 minutes.
run more than 15 minutes.
(2) As below Fig. 9, Supply 216Level (85 IRE) full screen
pattern to Video input.
(RCA: AV1, SCART: AV3, PAL: 50Hz, NTSC: 60Hz)
(RCA: AV1, SCART: AV3, PAL: 50Hz, NTSC: 60Hz)
(3) Press the TV/AV KEY on R/C for converting input mode.
(4) Set the PSM to Standard mode in Picture menu.
(5) Enter the White Balance adjustment mode by pressing the
(4) Set the PSM to Standard mode in Picture menu.
(5) Enter the White Balance adjustment mode by pressing the
INSTART key twice(White Balance) on R/C.
(6) 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.
(7) Adjust Only High Light with R Gain/ B Gain using
F
/
G
(VOL +/-) key on R/C.
(8) Adjust it until color coordination becomes as below.
(Initially, R/G/B gain and R/G/B offset values are fixed as
bleow
Red Gain: 82, Green Gain: 80, Blue Gain: 86
Red Offset: 7D, Green Offset: 7E, Blue Offset : 80)
bleow
Red Gain: 82, Green Gain: 80, Blue Gain: 86
Red Offset: 7D, Green Offset: 7E, Blue Offset : 80)
Bright :
High Light : 80 ± 20cd
Color-Coordinate :
High Light : X : 0.285 ± 0.002
Y : 0.290 ± 0.002
Color Temperature : 9,300°K ± 500°K
(9) When adjustment is completed, Exit adjustment mode
using EXIT key on R/C
8. Auto Component Color Balance
[Requirement]
It is very import to use correct adjustment pattern like fig. 9.
1) Within the pattern, color sequence should be aligned:
1) Within the pattern, color sequence should be aligned:
W-Y-C-G-M-R-BLUE-BLACK
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern
generator like MSPG-925)
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern
generator like MSPG-925)
2) If Minimum Black Level and/or Maximum White Level is not
correct, Do select 100% Color Bar Pattern.
8-1. Required Test Equipment
(1) Remote controller for adjustment
(2) 802F Pattern Generator
(2) 802F Pattern Generator
(Which has 720p Ypbpr output & PC 1024x768 @60Hz
with Standard(0.7Vpp) Vertical 100% Color Bar Pattern as
Fig. 10)
with Standard(0.7Vpp) Vertical 100% Color Bar Pattern as
Fig. 10)
8-2. Method of Auto Component Color Balance
(1) Input the Component 720p 100% Color Bar signal into
Component1 or Component2.
(2) Set the PSM to Standard mode in Picture menu.
(3) Press ADJ key on R/C for adjustment.
(4) Press the
(3) Press ADJ key on R/C for adjustment.
(4) Press the
G
(Vol. +) key operate To set, then it becomes
automatically.
(5) Auto-RGB OK means complete adjustment
216 Level (85 IRE)
Type
Baud Rate
115200
Index
R Gain
G Gain
B Gain
R Offset
G Offset
B Offset
Data bit
8
Cmd1 Cmd2
j
a
j
b
j
c
j
d
j
e
j
f
Stop bit
1
Parity
NONE
RF-052A/B/C
Protocol
Setting
Data
Min Value
00(00)
00(00)
00(00)
00(00)
00(00)
00(00)
Max Value
255(FF)
255(FF)
255(FF)
255(FF)
255(FF)
255(FF)
(Fig. 9) Pattern for Adjjustment of White Balance
(Fig. 10) Auto Component Color Balance Test Pattern
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ADJUSTMENT INSTRUCTIONS
9. Auto RGB Color Balance
[Requirement]
It is very import to use correct adjustment pattern like fig. 11.
1) Within the pattern, color sequence should be aligned:
1) Within the pattern, color sequence should be aligned:
W-Y-C-G-M-R-BLUE-BLACK
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern
generator like MSPG-925)
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern
generator like MSPG-925)
2) If Minimum Black Level and/or Maximum White Level is not
correct, Do select 100% Color Bar Pattern.
9-1. Required Test Equipment
(1) Remote controller for adjustment
(2) 802F Pattern Generator
(2) 802F Pattern Generator
(Which has VGA 60Hz PC Format output with standard
(0.7Vpp) Vertical 16 Gray Scale pattern as Fig.11)
(0.7Vpp) Vertical 16 Gray Scale pattern as Fig.11)
9-2. Method of Auto RGB Color Balance
(1) Input the PC 1024x768 @ 60Hz 100% Color bar into RGB.
(2) Set the PSM to Standard mode in Picture menu.
(3) Press ADJ key on R/C for adjustment.
(4) Press the
(2) Set the PSM to Standard mode in Picture menu.
(3) Press ADJ key on R/C for adjustment.
(4) Press the
G
(Vol. +) key operate To set, then it becomes
automatically.
(5) Auto-RGB OK means completed adjustment.
10. Default Value in Adjustment Mode
10-1. Auto Color Balance (Component/RGB)
10-2. White Balance
Auto Color Balance(HEX)
Auto-RGB
G
To Set
Source
Cortez
Red
Offset1
22
Green Offset1
24
Blue
Offset1
23
Red
Offset2
45
Green Offset2
43
Blue
Offset2
37
Red
Gain
014
Green Gain
031
Blue
Gain
011
Reset
G
To Set
White Balance(Hex)
Red
Gain
82
Red
Offset
80
Green Gain
86
Green Offset
7D
Blue
Gain
7E
Blue
Offset
80
Reset
G
To Set
(Fig. 11) Auto RGB Color Balance Test Pattern
(Fig. 12) Default Value on OSD
(Fig. 13) Default Value on OSD
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