Zenith B25A10Z Service Manuallines

Also see for B32A24Z: Operating guide Specifications

Contents

Zenith B25A10Z Service Manuallines Manual pdf 45 page image

CM151 2-4 CA - INSTALLER MENUS01 PRE PX: Stores customer menu adjustments in thenonvolatile memory of the EAROM. Selections are Custom/Preset-Store. Settings for Contrast, Brightness, Color andtint are stored in this manner. 0 is custom and 1 isPreset stored.02 V P0S: Moves On-Screen Displays vertically. TheRange is from 0 - 25. This adjustment is generally set at 5.03 H POS: Moves On-Screen Displays horizontally. Rangeis from 1 - 15. Generally set at 9.04 LEVEL: There are three positions: 0, 1,and 2. Thethree different positions are used at the factory toprogram the module for the correct features. In orderto change the level, short pins 3 and 4 together onconnector 4G9 on the main module. The connector islocated on the left hand side of the module.Note: Be careful, shorting the wrong pins could damagethe module. Always remember to remove thejumper after setting the level.05 BAND: There are eight positions: 0 - 7.0 is Broadcast fixed 4 is Broadcast afc1 is CATV afc 5 is CATV fixed2 is HRC afc 6 is HRC fixed3 is ICC afc 7 is ICC fixed06 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 ACpower 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 tozero. For normal TV operation, set to 1 if Y/C is used orchassis has a comb filter.09 RF BRT: (RF brightness) Sets adjustment range ofcustomer control for brightness in RF mode. Range is0 - 63. A typical value is 30.10 AX BRT: (Auxiliary Brightness) Sets adjustment rangeof customer control for brightness in AUX mode. Rangeis 0 - 63. Typical value is 30.the channel number.11 MAX CON: Sets adjustment range of customer controlfor 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 to46.17 RF AGC: (Rf Automatic Gain Control) Range is from 0- 63. 48 is a general setting. Tune in weakest availablechannel 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 is0 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 is0 - 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 is0 - 254. Typical value is 70.27 SCROLL: Selects the method the User Menus thatwill 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 is0-63.33 WBAND: (Wide Band Low Frequency Seperation)Range -s 0-6334 IN OSDC: (On Screen Display Internal Oscillator) Rangeis 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 221-1385-0135 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