Audiovox CX15 Service Manual download pdf (Page 32)

PT3-H AVC3-U

4 WHITE BALANCE ADJUSTMENTS

(PDP MONITOR)

General Notes for White Balance

(1) If the incident illumination is more than 20 lux,

change the environment (location, lighting, etc.) and

ensure it to be less than 20 lux.

(2) At least one of the color drive codes must stay at its

maximum value, FF

4.1 VIDEO COLOR TEMPERATURE ADJUSTMENT

(HIGH)

Preparation 1

(1) Set the output of signal generator to white raster.

(Ratio:100%)

(2) Component signal

Video level: 0.714Vp-p

SYNC: 0.286Vp-p

Set-up level: 0V

(3) Input white raster signal into COMPONENT input

terminal of AVC.

(4) Set user control to Day mode. (Picture Mode)

(5) Confirm that the mode is set as “Factory Setting

Mode”.

(6) Aspect:  Video: Expanded

 PC: FULL

Preparation 2

(1) Set service adjustment menu to “DEVICE ADJUST

MODE”.

(2) Set WBC to “0”. (“PDP” to “WBC”)

Adjustment

(1) Perform the following adjustment with the remote

control.

(2) Set the CRT color analyzer (CA-100) at the center of

the panel.

(3) Set color temperature to “HIGH”.

(4) Ensure that Adjustment R/G/B DRIVE (HIGH) are all

set as FF.

(5) After receiving White raster signal, step down the two

(or one) among Adjustment R/G/B DRIVE (HIGH)

and adjust the value shown in the following:

At least one of the data should be FF.

Specification

Video Color temperature (HIGH)

x = 0.285 ± 0.005

y = 0.298 ± 0.005

(Color temp: 9200K)

Remarks

(1) Color temperature should be adjusted under the

condition in which the screen is the brightest, thus

the initial value for adjustment is set to its maximum.

(2) Adjustment is made by reducing brightness only.

Reduce a bright color for adjustment.

(3) Video color temperature & Adjustment No. are the

same, but addresses in the memory are different,

thus there’s no problem.

4.2 VIDEO COLOR TEMPERATURE ADJUSTMENT

(MEDIUM)

Preparation

(1) Same as “Video Color Temperature adjustment:

(HIGH)”.

Adjustment

(1) Perform the following adjustment with the remote

control.

(2) Set the CRT color analyzer (CA-100) at the center of

the panel.

(3) Set color temperature to “MEDIUM”, using SEL key.

(4) Ensure that Adjustment R/G/B DRIVE (MEDIUM) are

all set as FF.

(5) After receiving White raster signal, step down the two

(or one) among Adjustment R/B/G DRIVE (MEDIUM)

and adjust the value shown below.

At least one of the data should be FF.

Remarks

(1) Same as “Video Color Temperature adjustment

(HIGH)”

Specification

Video Color temperature (MED)

x = 0.301 ± 0.005

y = 0.314 ± 0.005

(Color temp: 7500K)

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Audiovox CX15 Service Manual Page 32

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