Sharp 20CT-250 Service Manual page 4

SERVICE MODE
(1) Press the specific keys to change the modes as follows.
RASTER mode CUT-OFF mode
Y-DY/OP ADJUST mode 60 Hz ADJUST mode
CUT-OFF/BKGD mode
R-CUT OFF
G-CUT OFF
B-CUT OFF
3-sec time out
LATERAL mode
3-sec time out
KEY
R-CUT OFF
G-CUT OFF
B-CUT OFF
R-DRIVE
B-DRIVE
LATERAL mode
50 Hz ADJUST mode
V-AMP 50 Hz (V-AMP50)
V-LINE 50 Hz (V-LINE50)
S-CORRECT 50 Hz (V S-CORR50)
V-PHASE 50 Hz (V-CENTER50)
H-PHASE 50 Hz (H-CENTER50)
V-BLK START (V-BLK ST50)
V-BLK STOP (V-BLK SP50)
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
* The characters in parentheses appear on the on-screen display.
50 Hz ADJUST mode COLOUR ADJUST mode
SUB-ADJUST mode
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
CUT-OFF/ R-DRIVE
BKGD mode B-DRIVE
3-sec time out
3-sec time out
UP DOWN
1 KEY 4 KEY
2 KEY 5 KEY
3 KEY 6 KEY
7 KEY F/B KEY
8 KEY 0 KEY
9 KEY
COLOUR ADJUST mode
SECAM R-Y (R-Y)
SECAM B-Y (B-Y)
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
4-1
SUB-ADJUST mode 60Hz ADJUST mode
SUB CONTRAST (SUB CON) V-AMP 60 Hz (V-AMP60)
SUB BRIGHT (SUB BRI) V-LINE 60 Hz (V-LINE60)
SUB COLOUR (SUB COL) VS-CORRECT 60 Hz
SUB SUBTINT ( SUB TIN) V-PHASE 60 Hz (V-CENTER60)
SUB SHARPNESS (SUB SHARP) H-PHASE 60 Hz (H-CENTER60)
Y-SUB CONTRAST (Y SUB CON) V-BLK START 60 Hz (V-BLK ST60)
V-BLK STOP 60 Hz (V-BLK SP60)
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
* When the modes are switched, the last service mode data are stored into the E
* In the service mode, the user data are preset as follows.
CONTRAST
COLOUR
BRIGHTNESS
TINT
SHARPNESS
S-VOLUME
BLUE BACK
* The following keys are used to go directly to their respective modes.
Mode
H-CENTER 50
V-CENTER 50
V-AMP 50
V S CORR 50
V-LINE 50
SUB CONT
Y SUB CONT
SUB COLOUR
SUB BRIGHT
SUB TINT
SUB SHARP
R-Y
B-Y
A/V 1/2
VIDEO MUTE
Y-DY/OPTION mode
Y DELAY PAL (DT PAL TV/AV)
Y DELAY SECAM (ST SECAM TV/AV)
Y DELAY NTSC (DT NTSC TV/AV)
Y DELAY B/W (DT BW TV/AV)
VIDEO MUTE ON/OFF (V-MUTE)
VIDEO 2 ON/OFF (AV2)
(DELAY A/V effective in A/V mode)
* The characters in parentheses
appear on the on-screen display.
2
PROM.
User data
MAX (64/64)
CENT (32/64)
CENT (32/64)
CENT (32/64)
CENT (32/64)
MIN (1/64)
OFF
Key input
PICTURE
TEXT
INDEX
RED
GREEN
CANCEL
REVEAL
TIMED PAGE
SIZE
HOLD
RESET
YELLOW
CYAN
SKIP
BLUE BACK
4-2