JVC LT-42DA9BN Service Manual page 10

3.3 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.
3.3.1 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. FACTORY MODE setting
Verify what to set in the FACTORY MODE, and set whatever is necessary.
3.3.2 FACTORY MODE SETTING
FACTORY MODE SCREEN
FACTORY MODE SCREEN-1
Press [ ] key
FACTORY MODE SCREEN-2
1-10 (No.YA608<Rev.002>)
Service Service
Hardware Ver : REV X.X Hardware Ver : REV X.X
Sub MCU SW Ver : REV X.X Sub MCU SW Ver : REV X.X
ATV SW Ver : XXXXXX X.XX.XX ATV SW Ver : XXXXXX X.XX.XX
DTV SW Ver : XXXXXX X.XX.XX DTV SW Ver : XXXXXX X.XX.XX
Sub MCU Loader Ver : XX.XX Sub MCU Loader Ver : XX.XX
DTV Loader Ver : XX.XX DTV Loader Ver : XX.XX
ATV Loader Ver : X. X. X ATV Loader Ver : X. X. X
System ID : XXXX.XXXX System ID : XXXX.XXXX
Update Date : XXXX XX XXXX Update Date : XXXX XX XXXX
Right:Enter Right:Enter Back:Return Back:Return Exit:OK Exit:OK
Video Setup Video Setup
White Balance White Balance
Spread Spectrum Spread Spectrum
Panel Select Panel Select <XXXXX> <XXXXX>
Reset TV-set Reset TV-set
Factory Default Factory Default
Right:Enter Right:Enter Back:Return Back:Return Exit:OK Exit:OK
SETTING ITEM
Setting items
Video Setup
White Balance
Spread Spectrum
Panel Select
Reset TV-set
Factory Default
Settings
[Do not adjust]
Adjust
[Do not adjust]
[Do not adjust]
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