PG-F312X (serv.man4). Electrical Adjustment - Sharp Projector Service Manual (repair manual). Page 2

XR-32S/XR-32X/PG-F212X/PG-F312X

4 – 2

1

R/G/B brightness adjustment

1. Select items as follows.
    Group: CONFIRM/AD
    Adjustment item: R-BRIGHT
                                G-BRIGHT
                                B-BRIGHT
    (Process gamma interlocking)

1. Confirm the fixed value.
     Fixed value: 125

2

Component offset adjustment

1. Input the 10-step signal of 480P 
    component 100% amplitude.
2. Select items as follows.
    Group CONFIRM/AD
    Adjustment item: C-R-OS
                                C-B-OS
    (Process gamma interlocking)

1. Confirm the fixed values.
    C-R-OS: 260
    C-B-OS: 260

3

DLP brightness adjustment

1. Select items as follows.
    Group CONFIRM/DLP
    Adjustment item: R-BLK
                                G-BLK
                                B-BLK
    (Process gamma interlocking)

1. Confirm the fixed value.
    Fixed value: 252

4

Video contrast adjustment

1. Input the NTSC 100% window pattern signal.
    (Signal with burst)
2. Select items as follows.
    Group: CONFIRM/VIDEO
    Adjustment item: V-CONT

1. Confirm the fixed value.
    Fixed value: 134

5

Video brightness adjustment

1. Input the NTSC100% window pattern signal.
    (Signal with burst)
2. Select items as follows.
    Group: CONFIRM/VIDEO
    Adjustment item: V-BRIGHT

1. Confirm the fixed value
    Fixed value: 68

6

Video TINT adjustment

1. Input the internal 8CH (Split color bar).
2. Select items as follows.
    Group: CONFIRM/VIDEO
    Adjustment item: V-HUE

1. Confirm the fixed value.
    Fixed value: 128

7

Video color saturation adjustment

1. Select items as follows.
    Group: CONFIRM/VIDEO
    Adjustment item: V-COLOR

1. Confirm the fixed value.
    Fixed value: 139

8

RGB gradation repeatability 
adjustment

1. Input the SMPTE pattern.

1. Confirm that the gradations of 100% and 95% of 
    white and 0% and 5% of black are observed.

9

Video white balance adjustment

1. Input the 50% gray pattern signal.
2. Select items as follows.
    Group: CONFIRM/VIDEO
    Adjustment item: V-R-OS
                                V-G-OS
                                V-B-OS

1. Confirm the fixed values.
    V-R-OS: 123
    V-G-OS: 123
    V-B-OS: 123

10

Confirmation and readjustment of 
white balance

1. RGB input, sRGB input, video input, 
    DTV input and DVD input

1. Confirm that there is no discrepancy between the 
    monitor unit and the white balance.

11

Confirmation of off timer operation 1. Select items as follows.

    Group: CONFIRM/CHECK
    Adjustment item: TEMP-OFF

1. Confirm that the off timer starts counting from 5 
    minutes and 1 minute is counted as 1 second and 
    the setting is turned off when 0 minute is displayed.

12

Confirmation of thermistor 
operation

1. Carry out heating with dryer.

1. Confirm that TEMP is displayed.

13

Auto-sync operation

1. Receive the phase confirmation pattern.

1. In the VGA/SVGA/XGA/SXGA/UXGA mode, 
    confirm that Clock, Phase, H-POS and V-POS can 
    be adjusted automatically.

14

Confirmation of DVI input 
operation

1. Input the image signal to the DVI-I terminal or 
    DVI-D terminal.

1. Confirm that the image is projected correctly with 
    digital input and analog input (only DVI-I).
2. Confirm that the HDCP authentication is available.