Required Test Equipment - LG MT-50PZ40 Service Manual

(4) To adjust Low Light , stick sensor to Gray Level(or 15±5
Cd/m2) Pattern, press ADJ Key on R/C for adjustment and
press v, x on R/C in adjustment mode to select R-L or G-L,
press VOL +, - Key and adjust it until color coordination
becomes as below.
X: 0.285±0.003, Y: 0.295±0.003,
Color temperature: 9,200°K±500°K
(5) To adjust Middle Light , stick sensor to Gray Level(or 55±5
Cd/m2) Pattern, press ADJ Key on R/C for adjustment and
press v, x on R/C in adjustment mode to select R-M or G-M,
press VOL +, - Key and adjust it until color coordination
becomes as below.
X: 0.285±0.003, Y: 0.295±0.003
Color temperature: 9,200°K±500°K
(6) To adjust High Light, stick sensor to Gray Level(or 115±5
Cd/m2) Pattern, press ADJ Key on R/C for adjustment and
press v, x on R/C in adjustment mode to select R-L or G-L,
press VOL +, - Key and adjust it until color coordination
becomes as below.
X: 0.285±0.003, Y: 0.295±0.003
Color temperature: 9,200°K±500°K
(7) Exit adjustment mode using o Key.
7. DDC Data Input

7-1. 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
DVI Jack)
7-2. Setting of Device
7-3. 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
operation. (operated in DOS mode.)
7-4. 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
Adjustment to RGB1 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
Check Sum is OK.
6) If Check Sum is NG, repeat 3) ~ 4).
7) If Check Sum is OK, DDC Data for Analog-RGB input is
completed.
(2) DDC Data input for Digital-RGB
1) Connect PC Serial to DVI Cable of JIG for DDC
Adjustment to RGB2 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
Check Sum is OK.
5) If Check Sum is NG, repeat 3) ~ 4).
6) If Check Sum is OK, DDC Data for Digital-RGB input is
completed.
8. Component Off-Set adjustment
Input the signal to HD-STB(SK-010T) and receive 14Ch.
8-1. Required Equipment
HD-STB (SK-010T or same product)
8-2. Manual Adjustment of Off-Set
(1) Input Video signal and Component 720P, 1080i signal of
HD-STB into AV1 and Component input part.
(2) Select Twin Picture by pressing ADJ twice on R/C, check
component in the main picture and AV1 in the sub picture.
(3) Adjust the R-OFFSET, B-OFFSET color impression of
component(Main picture) and external Input(Sub picture)
same by pressing Volume +,- key.
- 10 -