Zenith H27G48S Service Manual - Factory Menu
FACTORY MENU
3828VD0171G
2-6
DIGITAL FCS - FACTORY MENU
DETAILED DESCRIPTIONS OF FACTORY MENU
ITEMS
000-F FACT MENU:
Use the Select key to select
item #00, which is the first item in the Factory’s
Menu. The Factory Mode item should always be
left off (Zero is off). When The Factory Mode is
on, the Factory Menu line appears at the top of
the screen to allow for proper setting of the
video.
When the Factory Mode is turned off, all TV
functions are returned to normal. The dashes on
the menus are removed indicating that the Fac-
tory Mode is off. There are 4 ways to turn off
the Factory Mode:
1. Change Factory’s Menu Item “00 F Mode” to 0.
2. Run Auto Program.
3. Use the Clock Set feature to set the time.
4. Use Factory off IR code.
Notes:
• When the Factory Mode is on, the TV set will
automatically turn on when AC power is applied.
The POWER key will not turn the set off. The
only way to turn off the set is by removing the
AC power.
• Settings Displayed in Customer Menus: When
adjusting a bar graph setting in the Video and
Audio Menus, a number is displayed showing the
actual numeric value stored in EEPROM for that
setting. On menu items without a bar graph set-
ting, two dashes indicate that the Factory Mode
is on. • Video Preference Settings Inhibited: In
the Video Menu, the Custom Video Preference set-
tings are inhibited while the Factory Mode is on
and will NOT be stored in EEPROM. (This allows
the factoryto temporarily change the settings
and not store them permanently.)
001-F PRESET PX:
Used to store the customer
menu adjustments in the nonvolatile memory of
the EAROM. Settings for Contrast, Brightness,
Color and Tint are stored in this manner. 0 is
Custom and 1 is Preset.
002-F PRESET AX:
Saves your custom audio set-
tings (Bass, table, balance, audio mode,
soundrite, front surr, speaker) in nonvolatile
memory (not affected by power loss). Memory sta-
tus is indicated by a 1 for “custom settings
already stored”, or 0 for “custom settings have
not been stored.”
003-F VERT POS:
Moves Captions and displays
vertically on the screen. Use the ADJUST keys.
004-F HORZ POS:
Moves Captions and displays
horizontally on the screen. Use the ADJUST keys.
G2 ADJUSTMENT.
005-F AIR AFT:
Enable/Disable (1/0). This fea-
ture is for enable or disable the AFT execution
in AIR Band.
006-F G2 ADJUST:
Max value of 254d and default
value of 127d. It is required to adjust the
cutoff level when the horizontal line becomes
visible at center of screen during G2 adjust-
ment.
007-F RF SUB_BRIGHT:
Max value of 63d and de-
fault value of 31d for NTSC video format Depends
of factory adjustment.
008-F RF WHITE ADJ:
Max value of 63d and de-
fault value of 25d for 27" and 28d for 32". It is
required as test condition to reduce the con-
trast level during RF sub brightness adjust-
ment.
009-F RF BLACK ADJ:
Max value of 63d and de-
fault value of 63d for 27" and 60d for 32". It is
required as test condition to increase the black
level during the RF sub brightness adjustment.
AUDIO OPTIONS
010-F VOL CLIPPING:
Reduce clipping effects
due the gain combination of volume, bass and
treble settings. Range: 0-3. Fixed value = 0
(Reduce volume when gain combination > 12dB).
011-F SPAT STRENGHT:
Spatial effect strength.
Fixed value = 63 (enlargement = 50%).
012-F SPAT MODE:
Define the spatial effect mode.
Fixed value = 0 (Stereo Base width Enlargement
and Pseudo Stereo Effect).
013-F SPAT GAIN:
Spatial effect high-pass gains.
Fixed value = 2 (2/3 high-pass gain).
014-F PRE AUX_INPUT:
Defines the input gain
value for auxiliary input signals. Fixed value =
25 (0 dB gain).
015-F PRE AUD_DEMOD:
Defines the input prescale
gain for the demodulated audio signal. Fixed
value = 24.
016-F AVC:
Automatic volume correction decay
time. Fixed value = 4.
NTSC: IC CXA2150
017-F SUBCONT
Sub contrast adjustment. Range:
0- 15, 0 = Minimum, 15 = Maximum. Contrast gain
control (Y system level adjustment). Range: 0-
15, 0H = -1.9 dB, 7H = 0 dB, FH = +1.7 dB.
018-F SUBBRIGHT
Sub-brightness control. Range
0- 63, settings for output DC bias out RGB OUT.
OH=-13IRE, 1Fh=CENTER, 3Fh=+13IRE.
019-F RDRIVE
R channel drive gain control. Range:
0- 63, 0H = -4.2 dB, 29H = 0 dB, 3FH = +2.1 dB.
Fixed value.