Toshiba 20N7XE, Service Manual

Page: 6 / 55

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GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
SERVICE MODE
1. ENTERING TO SERVICE MODE
3) While pressing the
o
button,
press MENU button on TV set.
2) Press
o
button again to
keep pressing.
2. DISPLAYING THE ADJUSTMENT MENU
1) Press MENU button on TV.
1) Press
o
button once on
Remote Control.
Adjustment mode
Item
Data
Service mode
S
Press
Press
ITEM
DATA
Color thickness correction
note: Displayed differently as shown below, de-
pending on the setting of the receiving color
system.
COLP (PAL)
COLC (NTSC)
COLS (SECAM)
CAUTION : Never try to perform initialization unless you have changed the memory IC.
S
(Service mode display)
Item
Data
3. KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
A single horizontal line ON/OFF:
- / - - button (on Remote) or
a
button (on TV)
Test signal selection :
a
button (on Remote)
Selection of the adjustment items : CHANNEL
s
/
t
(on TV or Remote)
Change of the data value : VOLUME +/– (on TV or Remote)
Adjustment menu mode ON/OFF : MENU button on TV
Initialization of the memory (QA02) : CALL + CHANNEL button on TV (
s
)
Reset the count of operating protect
circuit to “00”:
CALL + CHANNEL button on TV (
t
)
“RCUT” selection : 1 button
“GCUT” selection : 2 button
“BCUT” selection : 3 button
“CNTX” (or “SCNT”) selection : 4 button
“COLC” selection : 5 button
“TNTC” selection : 6 button
Test audio signal ON/OFF (1kHz) : 8 button
Self diagnostic display ON/OFF : 9 button