Tovis MTG-02XT/XN Series, Руководство по эксплуатации и обслуживанию

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Factory control(On Screen Display)
C. Color Adjustment
All adjustment method is same with user’s control mode
except “COLOR”.
1) Before adjust “COLOR”, “CONTRAST” and
“BRIGHTNESS” have to fix maximum.
(It’s a TOVIS’s reference condition.)
2) At the factory mode, search “COLOR” using
“UP/DOWN” key.
3) Select “COLOR” by pressing “SEL” key then color
sub-menu comes out as top below figure.
4) Search a color temperature which you want to
adjust (gain or bias) using “UP/DOWN” key.
(“GAIN” means high-beam area’s adjustment and
“BIAS” means low-beam area’s adjustment.)
5) Select an any item as wanting by pressing “SEL” key
then the OSD changes to under sub-menu as
below figure.
6) Adjust color temperature using “UP/DOWN” and
“SEL” key.
(“UP/DOWN” key: change value, “SEL” key: moves
item position.)
7) At the “GAIN” mode, “ABL” means ABL Level
adjustment.
ABL Level adjusted using “UP/DOWN” key if
necessary. (To meet the white peak “ft” level.)
8) Press “MODE” key to finish the “GAIN” or “BIAS”
adjustment.
9) If you want to adjust other “GAIN” or “BIAS”,
Repeat from item C. “Color Adjustment”.
10) Press “MODE” key again to finish the “COLOR”
Adjustment.
11) If you want to finish factory adjustment, Select
“RECALL” as item B. “Exit and save”
COLOR sub-menu
GAIN under sub-menu
BIAS under sub-menu
HIGH VOLTAGE SHUT-DOWN CIRCUIT
The chassis of this monitor has been designed to emit a
minimum of soft X-radiation, in accordance with US
DHHS rules 21 CFR, subchapter. A high voltage shut-
down circuit, as shown below, guarantees horizontal
oscillation shut-down should the high voltage exceed
designed picture tube maximums.
DO NOT ATTEMPT TO MODIFY THIS CIRCUIT.
A fly back pulse is generated at pin (4) of the fly back
transformer.
After the pulse converted to DC through rectifying
circuit D317 & C338, it is input to MCU pin (36) through
the divider network register R627 & R637.
Normally voltage of R637 is below 3V, it is not
operated but in case of excess voltage it has to be
shut-down.
IC601 C621 R637 R627 C338 D317 R382 FBT
Pin 36 Pin 4
RG 50 BG 50
GG 50 CO MAX
9300 GAIN 9300 BIAS
6500 GAIN 6500 BIAS
RB 50 BB 50
GB 50