Tauras TV4K-NICAM/A2/TXT, Руководство по обслуживанию

Страница: 4 / 8

4. NO matter whether the luminance, contrast and chrominance controls are set to maximum or
minimum, the high voltage must be kept under 29KV.
FOCUSING
Receive a TV test pattern signal; adjust controls for optimum picture. Adjust Focus Control for
a well-defined, sharpest display in the center area of the screen.
Service controlled Function
The Service-1 mode is entered by pressing the “SERVICE” key when the TV is in
ON condition and not in any Menu mode. In service mode, by pressing “OK” key
Service-2 is accessed , by pressing “Enter” key again Service-3 and Service-4 is
accessed. By pressing “PP” key, we come out of Service mode.
The items within the Service-1 mode can be accessed using UP / DOWN keys and
the selected item can be varied using LEFT / RIGHT keys. The parameters
controlled in the Service-1 menu
are :
a) Red Gain ( 0 ... 63 )
b) DC Red ( 0 .... 63)
c) Green Gain ( 0 .... 63)
d) DC Green ( 0 .... 63)
e) Blue Gain ( 0 .... 63)
f) DC Blue ( 0 .... 63)
g) Apr Threshold (0 …. )
g) LOGO ( the first show the length of logo, and the followed is the logo)
When in Service-1 menu ,if “OK” key is pressed , Service-2 menu appears and the
display is as follows.The parameters controlled in the Service-2 menu are :
a) Tuner AGC ( 0 ... 63 )
b) Horizontal position 50 Hz( 0 ... 63)
c) Vertical position 50 Hz (0…15) - not using
d) Vertical position 60 Hz (0…15) - not using
e) Vertical amplication 50 Hz (0…63) - not using
f) Vertical amplication 60 Hz (0…63) - not using
g) Bright Max (0…63)
h) Bright Min (0…63)
i) Sub Tint (0…63)
j) VCO Coarse ( 0 ... 15)
k) VCO Fine ( 0 ... 127 )
l) VCO Coarse L1( 0 ... 15)