DOWNLOAD Sharp XG-C50XE (serv.man10) Service Manual ↓ Size: 26.77 KB | Pages: 9 in PDF or view online for FREE

19

Checking and
readjustment of
white balance

1. The adjusting conditions for each

item are as follows:
For RGB input, see Item 7.
For video input, see Item 13.
For COMPO input, see Item 16.

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

1. Make sure the white balance is as

specified on the standard monitor.
For readjustment, proceed in the or-
der of RGB input, video input and
COMPO input.

20

Checking color-
related perfor-
mance

1. Receive the color bar signal.

1. Select L1 in the process mode.

Check the performance of color and
tint.

21

Checking of
picture-related
performance

1. Receive the monoscope pattern sig-

nal.

1. Select L2 in the process mode.

Check Picture, Brightness and Sharp-
ness.

22

Checking of RGB
performance

1. Receive the RGB signal.

1. Select L4 on the process mode.

Check Picture, Brightness, Red, Blue,
Clock, Phase, H-POS and V-POS.

23

Checking of off-
timer performance

1. Select OFF in the process mode.

Make sure that the off-timer starts
with 5-minute display, counts down
1 minute for 1 second, and turns off
when 0 minute is displayed.

24

Checking of
thermistor perfor-
mance

1. Heat the thermistor with a hair dryer.

1. Make sure the temperature is dis-

played.

25

Automatic sync
operation

1. Receive the phase checking pattern

signal.

1. Make sure that Clock, Phase, H-POS

and V-POS can be automatically
adjusted in the VGA/S-VGA/XGA
mode.

26

Checking of USB
performance

1. Using the USB cable, connect the

set to a personal computer.

1. Using the remote controller, make

sure that feed and return operations
are effective on the screen of the
personal computer.

27

Factory settings

1. Make the following settings.

Destination / Process adjustment /
Remote controller settings
North-American models: S4 "Factory
Setting 4"
Domestic models: S5 "Factory Set-
ting 5"
Other models: North-America: S3
"Factory Setting 3"

1. Initialization of EEPROM

1) Press SW2601 to enter the process mode.

2) Execute S1 on the SSS menu. (By S1, the PC board alone is initialized. Do not execute S2, or all the

adjustment data, except for the PC I/F unit, is initialized.)

3) Make sure that the program version "VER. XXX" on the SPECIAL menu is the latest one.

2. Level adjustments

2-1. Setting the oscilloscope

Set the oscilloscope's range to DC1V/div and 5µ S/div.

2-2. Connecting the PC interface

1) Connect the specified cable between ANALOG OUTPUT (on the signal generator) and DSUB connector

(INPUT1 on the projector).

2) Set the projector's input selector to INPUT1.

3) Set the signal generator to XGA mode (1024x768, 60Hz, 32-step gradation). Also adjust the output

amplitude (between black and white) to 700 mVp-p (terminated with a 75-ohm impedance).

4) Turn on the power.

2-3. Adjusting items

1) Adjustment of RGB drive/gain

(1) Feed the window pattern signal that has 100% and 0% signals.

(2) Select AUTO among the A/D items in the process mode and make the adjustments.

Adjust PC Image

A/D

R-BRIGHT
G-BRIGHT
B-BRIGHT
R-D

B-D
G-D
AD-AUT

Adjust RGB Image

OUTPUT1

R1-BLK
R1-GAIN
G1-BLK

G1-GAIN
B1-BLK
B1-GAIN
S-R1-BLK
S-R1-GAIN
S-G1-BLK

S-G1-GAIN
S-B1-BLK
S-B1-GAIN

Adjust Panel Drive

OUTPUT2

PSIG-H
PSIG-L

Adjust Commn Voltage

OUTPUT3

RC

GC
BC
GCK-PHASE

Adjust Video Image

VIDEO

PICTURE
BRIGHT
TINT

N-COLOR
P-COLOR
S-COLOR
AGC-CNT
AGC-ADJ
STAT-GAIN

V-R1-BLK
V-B1-BLK
VIDEO-AUTO

Adjust Component Image

COMP

G-BRIGHT
CB-OFFSET
CR-OFFSET

C-R1-BLK
C-B1-BLK
COMPO-AUTO

»

»

  There are follwing two methods.

»

 

Press the SW2001 on the KEY PWB unit.

  

 

»

 

Press the follwing keys in this order.

      ON

→

Adj up

→

Adj down

→

Adj up

→

Adj down

→

ENTER

→

ENTER

→

MENU

Process Mode

LINE

L1
L2
L4
OFF
TEMP OFF

SENSOR CHECK

Initial Setting

SSS

TIME
S1
S2
S3
S4

S5

Sample Pattern

PATTERN

RGB
RGB[50]
CROSS
FOCUS
STEP

COLOR
CHR

Adjust CVIC

CVIC

PROGRESSIVE

MODE
IP
MDSW
PTGSW

C-TESTSW
C-ILG-LY
C-MOD-LY
C-VE-LV

ENHANCE-VIDE

ENH-PLUS
ENH-MINUS
DFC

ENHANCE-HDTV

ENH-PLUS
ENH-MINUS
DFC

ENHANCE-RGB

MODE
ENH-GAIN
ENH-PLUS

SCREEN

CUBIC-RGB
CUBIC-VIDEO

NR

YNR-LEVEL
YNR-K
YNR-FSEL
CNR-LEVEL

CNR-K
CNR-FSEL
CNR-FILSW

PTG

TBL-NO
TESTSW
ENABLE

MV-F
VDDYP