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Zenith B25A76R - Installers Menu 221-1385

Zenith B25A76R
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CM151 2-4 CA - INSTALLER MENUS
01 PRE PX: Stores customer menu adjustments in the
nonvolatile memory of the EAROM. Selections are Custom/
Preset-Store. Settings for Contrast, Brightness, Color and
tint are stored in this manner. 0 is custom and 1 is
Preset stored.
02 V P0S: Moves On-Screen Displays vertically. The
Range is from 0 - 25. This adjustment is generally set at 5.
03 H POS: Moves On-Screen Displays horizontally. Range
is from 1 - 15. Generally set at 9.
04 LEVEL: There are three positions: 0, 1,and 2. The
three different positions are used at the factory to
program the module for the correct features. In order
to change the level, short pins 3 and 4 together on
connector 4G9 on the main module. The connector is
located on the left hand side of the module.
Note: Be careful, shorting the wrong pins could damage
the module. Always remember to remove the
jumper after setting the level.
05 BAND: There are eight positions: 0 - 7.
0 is Broadcast fixed 4 is Broadcast afc
1 is CATV afc 5 is CATV fixed
2 is HRC afc 6 is HRC fixed
3 is ICC afc 7 is ICC fixed
06 AC ON: There are two positions, 0 is off and 1 is on.
When set to on, the TV will turn on and off when AC
power is applied.
07 RFB PF: (RF Bandpass) Range is 0-1.
08 3.5T: (3.58 MHz Trap) Zero is off, 1 is on. Set to
zero. For normal TV operation, set to 1 if Y/C is used or
chassis has a comb filter.
09 RF BRT: (RF brightness) Sets adjustment range of
customer control for brightness in RF mode. Range is
0 - 63. A typical value is 30.
10 AX BRT: (Auxiliary Brightness) Sets adjustment range
of customer control for brightness in AUX mode. Range
is 0 - 63. Typical value is 30.the channel number.
11 MAX CON: Sets adjustment range of customer control
for contrast. Range is from 0 - 63. Set to 63.
12 V SIZE: (Vertical Size) Range is 0-254.
13 H SIZE: (Horizontal Size) Range is 0-254.
14 V PHASE: (Vertical Phase) Range is 0 - 7. Set to 0.
15 H PHASE: (Horizontal Phase) Range is from 0 - 31.
Set to 18.
16 AUDLVL: Sound Attenuation range is 0-63. Set to
46.
17 RF AGC: (Rf Automatic Gain Control) Range is from 0
- 63. 48 is a general setting. Tune in weakest available
channel and adjust for a snow- free picture.
18 H AFC: Range is 0 - 1. Set to 0. 0=AFC2 Normal.
1=AFC2 X 3.
19 WHCOMP: (White Compression)The range is 0 to 1.
Set to 0. 0 = Enable and 1 = Disable.
20 60HZ SW: A sync stability item. Range is 0 - 1.
Zero is off. Set to 0.
21 PIFVCO: Range is 0 - 127.
Items 22 through 26 vary with CRT*
22 R CUT: B&W tracking adjustment. Range is
0 to 255. Typical value is 20.
23 G CUT: B&W tracking adjustment. Range is 0 - 255.
Typical value is 0.
24 B CUT: B&W tracking adjustment. Range is
0 - 255. Typical value is 28.
25 G GAIN: B&W tracking adjustment. Range is 0
- 255. Typical value is 45.
26 B GAIN: B&W tracking adjustment. Range is
0 - 254. Typical value is 70.
27 SCROLL: Selects the method the User Menus that
will appear on the screen. 1 is On which is Scroll Off.
28 6 KEYS: Set to 1 for the 6 button keyboard.
29 A ATT: (Audio Attenuator) Range is 0-63.
30 A VCO: (Audio Decoder Oscillator) Range is 0-63.
31 AFILTER: (Audio Filter) Range is 0-63.
32 ASPECTRAL: (High Frequency Seperation) Range is
0-63.
33 WBAND: (Wide Band Low Frequency Seperation)
Range -s 0-63
34 IN OSDC: (On Screen Display Internal Oscillator) Range
is 0-1.
35 OSD FRAME: (On Screen Display Frame) Range is 0-1.
36 ASS ON: (Automatic Sleep System) Range is 0-1.
Differences for 221-1385-01
35 XTAL: External Crystal. Range is 0-1.
* Adjust only if CRT has been changed. The “CUT”
adjustments affect the Lowlights and the “GAIN”
adjustments affect the Highlights.
INSTALLERS MENU 221-1385

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