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1-18 (No.YA535)

SECTION 4

ADJUSTMENT

4.1 ADJUSTMENT PREPARATION

(1) This TV is adjusted by using REMOTE CONTROL UNIT.

(2) The adjustment using the REMOTE CONTROL UNIT is

made on the basis of the initial setting values. The

setting values which adjust the screen to the optimum

condition can be different from the initial setting

values.

(3) Make sure that connection is correctly made AC to AC

power source.

(4) Turn on the power of the TV and measuring instruments for

warming up for at least 30 minutes before starting

adjustments.

(5) If the receive or input signal is not specified, use the most

appropriate signal for adjustment.

(6) Never touch the parts (such as variable resistors,

transformers and condensers) not shown in the adjustment

items of this service adjustment.

4.2 PRESET SETTING BEFORE ADJUSTMENTS

Unless otherwise specified in the adjustment items, preset the

following functions with the REMOTE CONTROL UNIT.

4.3 MEASURING INSTRUMENT AND FIXTURES

• Signal generator (Pattern generator) [NTSC]

• TV audio multiplex signal generator

• Remote control unit

4.4 ADJUSTMENT ITEMS

 VIDEO CIRCUIT [TV-MICRO SERVICE MODE]

• WHITE BALANCE (HIGHLIGHT) adjustment

 MTS CIRCUIT [DIGITAL SERVICE MODE]

• MTS INPUT LEVEL adjustment

• MTS SEPARATION adjustment

4.5 SERVICE MODE

4.5.1 BASIC OPERATION OF SERVICE MODE

Operate the SERVICE MODE with the REMOTE CONTROL

UNIT.

4.5.1.1 HOW TO ENTER THE SERVICE MODE

(1) Set to "0 minutes" using the [SLEEP] key.

(2) While "0 minutes" is displayed, press the [VIDEO

STATUS] key and [DISPLAY] key simultaneously.

(3) Enter the SERVICE MODE (Fig.4-1)

Fig.4-1

4.5.1.2 HOW TO EXIT THE SERVICE MODE

Press the [MENU] key to exit the SERVICE MODE.

4.5.1.3 HOW TO STORE OF SETTING VALUE

When adjustment is completed, press the [MUTING] key to

memorize the adjustment value.

NOTE:

If not to do it, adjustment data is not memorized to the memory

IC. And if exit the adjustment mode before memorize the data,

the adjustment value which you change is canceled.

4.5.1.4 SERVICE MODE SELECT KEY LOCATION

Setting item Settings

VIDEO STATUS STANDARD

BRIGHT / CONTRAST / COLOR / TINT

COLOR TEMPERATURE LOW

COLOR MANAGEMENT ON

NATURAL CINEMA OFF

TREBLE / BASS / BALANCE 0

SMART SOUND OFF

MTS STEREO

A.H.S. OFF

ASPECT FULL

SERVICE MENU

1. TV-Micro Service

2. Digital Service

3. Digital Diagnostics

4. Digital Engineering Functions

SERVICE MODE SCREEN

[POWER]

[VOL-/VOL+][CH-/CH+]

[SLLEP]

[MUTING]

[MENU]

[DISPLAY]

[V. STATUS]

[VIDEO STATUS]

[BACK]

[NUMBER]

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JVC LT-37X688 Specifications

General

Integrated clock	Yes
Comb filter	Digital
Display diagonal	37 \
Display brightness	500 cd/m²
Native aspect ratio	16:9
Viewing angle, horizontal	176 °
Analog signal format system	NTSC
HDCP	No
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
S-Video outputs quantity	1
Product color	Black
RMS rated power	20 W