Read LG MT-42PM13B (CHASSIS:RF-04GC) Service Manual online
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5-3. Adjustment method
(P/No 3501V00182A)
(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 lable 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)
6. DDC Data Input
6-1. Required Test Equipment
(1) A jig for adjusting PC, DDC (PC serial to D-sub
Connection equipment)
(2) S/W for writing DDC (EDID Data Write & Read)
(3) D-sub 15P Cable, D-Sub to DVI Connector (Connect to
(3) D-sub 15P Cable, D-Sub to DVI Connector (Connect to
DVI Jack)
6-2. Setting of Device
6-3. Preparation for Adjustment
(1) Set devices as above and turn the PC, jig on.
(2) Put S/W for writing DDC (EDID data Write & Read) into
(2) Put S/W for writing DDC (EDID data Write & Read) into
operation. (operated in DOS mode.)
6-4. Sequence of Adjustment
(1) DDC Data Input for Analog-RGB
1) Put the set on the table and turn the power on.
2) Connect PC Serial to D-sub 15P Cable of jig for DDC
2) Connect PC Serial to D-sub 15P Cable of jig for DDC
adjustment to RGB terminal (D-Sub 15Pin).
3) Operate S/W for DDC record and select DDC data for
Analog RGB in Model Menu.
4) Operate EDID Write command.
5) Operate EDID Read command and check whether
5) Operate EDID Read command and check whether
Check Sum is MZ/MT-42PM13(VGA) : CB
6) If Check Sum is not CB(VGA), repeat 3) ~ 4).
7) If Check Sum is CB(VGA), DDC data for Analog-RGB
7) If Check Sum is CB(VGA), DDC data for Analog-RGB
input is completed.
(2) DDC Data input for Digital-RGB(DVI)
1) Connect PC Serial to DVI Cable of jig for DDC
adjustment to DVI terminal (DVI Jack).
2) Operate S/W for DDC record and select DDC data for
digital RGB in model menu.
3) Operate EDID Write command.
4) Operate EDID Read command and check whether
4) Operate EDID Read command and check whether
Check sum is
MZ/MT-42PM13(VGA) : 4A(1Page), B(2Page)
MZ/MT-42PM13(VGA) : 4A(1Page), B(2Page)
5) If Check sum is not
4A(1 Page), BF(2 Page) for repeat 3) ~ 4).
6) If Check sum is 4A(1 Page), BF(2 Page) for VGA, DDC
data for Analog-RGB input is completed.
7. Adjustment of White Balance
7-1. Required Equipment
Color Analyzer (CA-100 or same product)
7-2. Connection Diagram of Equipment for
Measuring
7-3. Adjustment of White Balance
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) Supply Gray Pattern (216 level=85IRE Full Size Pattern)
signal to PIGGY VIDEO input. (Refer to Fig. 12)
(3) Press the FRONT-AV KEY on R/C for converting input
mode.
(4) To adjust, stick sensor to 216 Gray Level Pattern(85IRE),
press ADJ key twice(White Balance) on remote control.
For adjustment and
For adjustment and
D
,
E
on remote control for adjustment
mode to select Red Gain and Green Gain, press VOL +, -
Key and adjust it until color coordination becomes as
below.
Key and adjust it until color coordination becomes as
below.
[RF-04GC : MZ/MT-42PM13] : VGA 42”
X; 0.283±0.003, Y; 0.297±0.003
Color Temperature; 9,300°K±500°K
X; 0.283±0.003, Y; 0.297±0.003
Color Temperature; 9,300°K±500°K
(5) Exit adjustment mode using
A
Key.
Window
MSPG-2100 or
MSTG-5200
MSTG-5200
AV Signal Input
Full Size Pattern
216 Gray Level
RS-232C Serial Communication
60Hz
PIGGY
RT-BA55
INPUT AV
RT-BA55
INPUT AV
(Fig. 12) White Balance Adjustment
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