JVC AV-28BK5ECB Service Manual page 14

AV-28BK5ECB
AV-28BK5ECS
SERVICE ADJUSTMENTS
[ADJUSTABLE SERVICE ADJUSTMENT]
IMPORTANT NOTICE
Do not attempt to change the data value of service items not listed below table otherwise it may cause loss of
performance and product safety. If you can not restore the data value of each service item, please initialize the
memory IC following to the below description "INITIALIZATION OF MEMORY IC" and re-adjust all of service
adjustments.
[REGULAR]
Item No. OSD
1 1VC1
2 2VC2
3 3AGC
4 4SCR
5 5GRY
6 6CUT
7 7CTR
8 8OSD
[SHAPE]
Item No. OSD
1 1.HSF
3 3.EWW
4 4.EWP
9 9.VAM
13 13.VSC
Exit from the Service Mode
+ Press the i button on the remote control or turn off the TV set by using the Mains switch.
[INITIALIZATION OF MEMORY IC]
To initialize the memory IC (IC802), press and hold the P.MODE/OK button and then press the P
the front control panel, and then turn the Mains switch Off and On. Now the initialization is completed.
When initialized the memory IC, all of the setting data (feature setting data, option data and service adjustment
data) stored in the IC are reset to the default value. So it is necessary to set the feature setting, option setting and
readjust the service adjustments listed on pages 11 to 14.
[RESTORE THE SELF TUNING SYSTEM]
This TV set provides a self-automatic tuning system function called "Plug & Play". The first time you switch on this
TV set, it will automatically begin to search and store all available channels. To restore this function, follows below
steps.
1. Disconnect the aerial socket.
2. Press the MENU button and select PRESET menu, and then press the P.MODE/OK button.
3. Select ATS EURO PLUS menu and press the P.MODE/OK button. The automatic tuning will start.
4. Turn off the Mains Switch on the TV front immediately before the TV receives and stores any of the signals.
Next time the TV set is turned on, the self automatic tuning system will start.
14
Description
B/G VCO Adjustment
France-L/L' VCO Adjustment
AGC Adjustment
Screen Adjustment
White Balance (high light) Adjustment
Cut-Off Drive Adjustment
Contrast Adjustment
OSD Positioning Adjustment
Description
Horizontal Centre Adjustment
Horizontal Width Adjustment
Pcc Adjustment
Vertical Height Adjustment
Vertical Centre Adjustment
No. 51758
-- Not required for this model
-- Do not adjust
button on