cap site
   
 

SHARP

4 - lowering the black level R;
5 - reducing the black level G;
6 - lowering the black level B;
7 - the growth of the amplitude R
8 - increase in amplitude;
S - reduction of the amplitude of the R;
About - lowering amplitude V.

* * *

The service mode chassis UA-1 SHARP

On the chassis UA-1 implemented three models of devices SHARP, on
Russian market
presented: 21A1-RU and 20A1-RU, 21A2 RU. The second one, both from the
titles
model significantly, applies to the value of CRT screen
diagonal of 20 ",
and two others - 21 ". The difference is the model 21A2-RU, is reduced in
generally to
Application of the two heads instead of one dynamical models
21A1RU and 20A1-RU.
The main feature of all three models is the use of
integrated
ultrahigh chip IX3368CE, covering a
simultaneously control processor and video processor.
Consider mode service chassis UA-1, which is used for
adjustment
and settings of picture and sound after
works
repairs (change of control of the processor, memory chips
nonvolatile, etc.).
To enter the service mode of short duration (1 sec)
bridged
between a jumper 124 and 122 are placed on the main circuit board,
or
button is pressed JWS remote staffing. The microprocessor at this mode
service switches, which consists of seven sub-modes:
Х AGC & GEOMETRIC
MODE,
Х WHITE POINT ADJ MODE,
Х SUB ADJ MODE,
Х Y-DELAY ADJ MODE;
Х OFFSET ADJ MODE;
Х 1C OPTION MODE;
Х MISC OPTION MODE
To transfer from one sub-mode to the second crush buttons CH DOWN / UP
Remote control or front panel. To select the desired sub-mode under pressure
button
VOL DOWN / UP remote control or front panel. To select parameters in
submode
(See. Table. 1) is used buttons CH DOWN / UP or remote control panel
front.
Use the VOL DOWN / UP buttons or the remote control panel, change the front
the setting selected.
To exit the service again short duration (1 s)
bridging of jumpers 122 and 124 together. microprocessor with
This enters the ordinary.
Initialization of non-volatile memory chips.
The initial values of all parameters are stored in a memory chip

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