Zenith P50W26, Service Manual

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PV154 - 923-03499
11
P50W26 - SERVICING
SERVICING
X: 0.290±0.003, Y: 0.300±0.003
Color temperature: 8, 500¡K±500¡K
7) Exit adjustment mode using o Key.
DDC DATA INPUT
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 (Con-
nect to DVI Jack)
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.)
SEQUENCE OF ADJUSTMENT
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.
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.
COMPONENT OFF-SET ADJUSTMENT
1) Input the signal to HD-STB(SK-010T) and receive 14Ch.
2) Input Video signal and Component 720P, 1080i sig-
nal of HD-STB into AV1 and Component input part.
3) Select Twin Picture by pressing ADJ twice on R/C, check
component in the main picture and AV1 in the sub
picture.
4) Adjust the R-OFFSET, B-OFFSET color impression of
component(Main picture) and external Input(Sub
picture) same by pressing ,- key.