Sharp AN-60KT Service Anleitung Seite 23

No. Adjustment Items
13 Automatic adjust-
ment of video
white balance
14 Automatic adjust-
ment of DTV white
balance
15 Adjustment of
DLP voltage (For
reference)
16 Frequency adjust-
ment
17 Frequency check-
ing
18 W/A selection
checking
19 Output waveform
checking
20 Hooked-up in-
spection
Adjustment Conditions
1. Feed the 50% gray pattern signal
(NTSC, burst signal).
2. Select the following group and sub-
ject.
Group: DLP
Subjects: V-R1-GAIN (Red)
V-B1-GAIN (Blue)
1. Feed the 50% gray pattern signal
(480I, color difference signal).
2. Select the following group and sub-
ject.
Group: DLP
Subjects: C-R1-GAIN
C-B1-GAIN
1. Read voltage rank of DLP descrip-
tion.
2. Set the switch corresponding to the
rank which has been read. (on the
formatter PWB)
1. Turn on the power.
2. Adjust the frequency at TP5801 to
12800000±40 Hz.
1. Turn on the power.
Send the signal using the remote con-
troller that is for the North American
and European markets.
Hook up the unit to the projector. Make
sure that the remote controlled regis-
tration functions well and that the
pointer moves accordingly.
Adjustment Procedures
1. Adjust V-R1-GAIN and V-B1-GAIN so
that x-value should be 265±3 and y-
value should be 298±3.
1. Adjust C-R1-GAIN and C-B1-GAIN
so that x-value should be 263±3 and
y-value should be 295±3.
1. Carry out adjustment when DLP chip
has been replaced or combination of
chip and formatter has been changed.
2. Rank:
Setting value: 1 2 3 4
1. Be sure to keep on power.
2. Take the frequency reading at TP5801
and readjust the trimmer capacitor
(C5835), as required, to the speci-
fied frequency level.
1. Make sure the frequency at TP5801
is 12800000±40 Hz.
1. Set the W/A terminal to the "L" level.
2. Connect the wired remote control
cable between the set and the re-
mote controller.
3. Make sure the remote controller func-
tions as specified.
Watch the oscilloscope screen to make
sure the serial data output is as speci-
fied.
Gyro remote controller performance
checking.
23
PG-M25X
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