JVC - LT-26A61BJ,LT-26A61SJ,LT-32A61BJ, LT-32A61SJ
LCD TV
SERVICE MODE AND POWER SUPPLY CIRCUIT
MEMORY IC REPLACEMENT
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
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 (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
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 (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.
ADJUSTMENT PREPARATION
(1) 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.
(2) Make sure that connection is correctly made AC to AC power source.
(3) Turn on the power of the TV and measuring instruments for warming up for at least 30 minutes before starting adjustments.
(4) If the receive or input signal is not specified, use the most appropriate signal for adjustment.
(5) Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service adjustment.
(1) 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.
(2) Make sure that connection is correctly made AC to AC power source.
(3) Turn on the power of the TV and measuring instruments for warming up for at least 30 minutes before starting adjustments.
(4) If the receive or input signal is not specified, use the most appropriate signal for adjustment.
(5) Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service adjustment.
SERVICE MODE
HOW TO ENTER THE SERVICE MODE
(1) Press [INFORMATION] key and [MUTING] key on th remote control unit simultaneously to enter the SERVICE MODE SCREEN
HOW TO ENTER THE SERVICE MODE
(1) Press [INFORMATION] key and [MUTING] key on th remote control unit simultaneously to enter the SERVICE MODE SCREEN
NOTE:
• As self check feature is not used in this TV, “2.SELF_CHECK” cannot be selected (screen display only).
• 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.
• As self check feature is not used in this TV, “2.SELF_CHECK” cannot be selected (screen display only).
• 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.
HOW TO EXIT THE
SERVICE MODE
Press the [MENU] key to exit the Service mode.
Press the [MENU] key to exit the Service mode.
CHANGE AND MEMORY OF SETTING VALUE SELECTION
OF SETTING ITEM
• [FUNCTION UP DOWN] 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 [MUTING] key.
• [FUNCTION UP DOWN] 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 [MUTING] key.
SERVICE MODE SELECT KEY LOCATION
ADJUSTMENT MODE
This mode is used to adjust the VIDEO CIRCUIT.
HOW TO ENTER THE ADJUSTMENT MODE
When the SERVICE MENU SCREEN of SERVICE MODE is displayed, press [1] key to enter the ADJUSTMENT MODE
NOTE:
• 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.
HOW TO ENTER THE ADJUSTMENT MODE
When the SERVICE MENU SCREEN of SERVICE MODE is displayed, press [1] key to enter the ADJUSTMENT MODE
NOTE:
• 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.
POWER SUPPLY CIRCUIT
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