XG-PH70X (serv.man3). Electrical Adjustment - Sharp Projector Service Manual (repair manual). Page 3

XG-PH70X/XG-PH70X-N

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NOTE: Since the PC I/F unit is initialized with S1, do not carry out S1. The PC I/F unit is already adjusted.

When the PC I/F unit must be adjusted, in such case as S1 is carried out by mistake, adjust it according to the followings

14

Lens shift posi-
tion

1. Move lens shift position
    Vertical : Top position
    Horizontal: Center

15

Turn off the 
power

1

Initialization of 
EEPROM

1. Select the following group and
    subject.
    Group  : SSS
   Subject : S1

1. Press S3602 to enter the process mode.
2. Execute the S1 command on the SSS menu. (By S1, all the contents of
    EEPROM are initialized.)

2

RGB tone repro-
duction adjust-
ment

1. Feed the window pattern signal
    that has 92% (0.64Vbw) and 0%
    signals (XGA/60Hz) to input 1
2. Select the following group and
    subject.
    Group     : A/D
    Subjects : AD-AUTO

* When you can not prepare 92% 

signal

1. Feed the window pattern signal
    that has 100% (0.7Vbw) and 0%
    signals.
    (XGA/60Hz) to input 1
* "MUTE" key will be change to 

the factory gamma

1. After signal input, select AD-AUTO for automatic adjustment.

1. Select the following group and subject.
    Group     : A/D
    Subjects : G-BRIGHT
2. Make adjustment so that some bits should be missing in black area of the
    picture.

3. Select the following group and subject.
    Group     : A/D
    Subjects : G-D
4. Make adjustment so that some bits should be missing in white area of the
    picture.
5. Select the following subject.
    Subjects : R-BRIGHT
6. Make adjustment so that some bits should be missing in black area of the
    picture.
7. Select the following subject.
    Subjects : R-D
8. Make adjustment so that some bits should be missing in white area of the
    picture.
9. Select the following subject.
    Subjects : B-BRIGHT
10. Make adjustment so that some bits should be missing in black area of the
      picture.
11. Select the following subject.
      Subjects : B-D
12. Make adjustment so that some bits should be missing in white area of the
      picture.