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Service Mode Adjustments
Following adjustments should be carried out when the memory IC is replaced. How to enter the service mode and
adjust values, please refer to " Entering to Service mode" on page 11.
Item 01 [RF AGC] AGC
NOTE: Do not attempt this adjustment with weak signal.
(1) Tune the receiver to most clearest (or strongest) VHF
station in your area. Set the brightness and contrast
controls to maximum. Set the colour control to
minimum.
(2) Select [RF AGC] in the service mode.
(3) Change value until the snow noise just disappears.
(4) Exit from service mode.
Item 02 [H-PHA] HORIZONTAL CENTRE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to normal.
(3) Select [H-PHA] in the service mode.
(4) Change value to be optimum horizontal centre position.
(5) Exit from service mode.
Item 04 [V-SIZ] VERTICAL SIZE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to maximum.
(3) Select [V-SIZ] in the service mode.
(4) Change value to be optimum vertical size.
(5) Exit from service mode.
Item 05 [V-SCO] V-S CORRECTION
(1) Receiver the monochrome circular pattern.
(2) Select [V-SCO] in the service mode.
(3) Adjust V-S CORRECTION by pressing VOLUME + or -
button.
(4) Exit from service mode.
All manuals and user guides at all-guides.com
Horizontal centre
Vertical size
Item 06 [V-LIN] VERTICAL LINEARITY
(1) Receive the monochrome circular pattern.
(2) Select [V-LIN] in the service mode.
(3) Adjust vertical linearity by pressing VOLUME + or - but-
ton.
(4) Exit from service mode.
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