ADJUSTMENT PREPERATION(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).SERVICE MODE [FACTORY MODE]Applicable to JVC LT-37A80SU, LT-37A80ZU, LT-37DA8BJ, LT-37DA8SU, LT-37DA8ZU Click on the pictures to Zoom InNOTE: Before entering the SERVICE MODE, confirm that the setting of VCR/TV/DVD switch is at the "TV” side. If the switches have not been properly set, you cannot enter the SERVICE MODE.”
(1) Press the [INFORMATION] key and [MUTING] key simultaneously, to enter the SERVICE MODE.(2) When the Main Menu is displayed, press [9].
(3) The screen shown is displayed, and the SYSTEM SETTING starts.
NOTE: When the SYSTEM SETTING is performed, all settings are reset to the factory setting. Perform the setting again.
SELECTION OF SETTING ITEM.
[FUNCTION UP/DN key. For scrolling up / down the setting items.
CHANGE OF SETTING VALUE (DATA): [FUNCTION LEFT/RIGHT key. For scrolling up / down the setting values.
MEMORY OF SETTING VALUE (DATA)
Changed setting value is memorized by pressing [OK] key.
SERVICE SELECT KEY LOCATION
When a number key other than the [1] key is pressed in the SERVICE MODE SCREEN, the other relevant screen may be displayed.
This is not used in the adjustment procedure.
Press the [MENU] key to return to the SERVICE MODE SCREEN.
SETTING THE ITEM NAME
Setting item name are displayed. The setting item numbers to be displayed are listed below.
INITIAL SETTING VALUES IN THE SERVICE MODE
Perform fine-tuning based on the "initial values" using the remote control when in the Service mode. The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved may be different from the default values.
Never change the values of the items( == ) that are not described in ADJUSTMENT PROCEDURE or in the below table as they are fixed values.
MEMORY IC REPLACEMENT PROCEDURE
1. Power off. Switch off the power and disconnect the power plug from the AC outlet.
2. Replace the memory IC. Be sure to use the memory IC written with the initial setting values.
3. Power on. Connect the power plug to the AC outlet and switch on the power.
4. Receiving channel setting. Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.
5. User setting. Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING INSTRUCTIONS and set the items as described.
6. SERVICE MODE setting. Verify what to set in the SERVICE MODE, and set whatever is necessary 2). Refer to the SERVICE ADJUSTMENT for setting.
