Zenith B25A10Z Service Manuallines

Also see for B32A24Z: Operating guide Specifications

Contents

Zenith B25A10Z Service Manuallines Manual pdf 49 page image

CM151 2-8 CA - INSTALLER MENUSINSTALLERS MENU 221-138701 PRE PX: Used to store the customer menu adjustmentsin the non-volatile memory of the EAROM . Settings forContrasts, Brightness, Color and Tint are stored in thismanner. 0 is custom and 7 is Pre-set stored.02 V POS: Moves On Screen Displays vertically. Range is0-30. Generally set at03 H POS: Moves On Screen Displays horizontally. Rangeis 0-45 . Generally set at04 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 just to theMicro IC6000 .Note: Be careful, shorting the wrong pins could damagethe module. Always remember to remove thejumper after setting the level.Level 0 and 2 is used for Private Label sets. Level 1 and2 are used for Zenith sets . In the private label modethe IR code is 21 or 121 .05 BAND: There are eight positions. 0 is Broadcast fixed,1 is CATV afc, 3 is ICC afc, 4 is Broadcast afc, 5 CATVfixed, 6 is HRC fixed, and 7 is ICC fixed.06 AC ON: There are two positions, 0 is off and I is ACOn. In On position set will turn on and off when ACpower is applied and removed.07 RFB PF: (RF Bandpass) Range is 0-1.08 3.5T: 3.58 MHz trap. Range is 0-109 RF BRT: (RF Brightness) Sets adjustment range ofthe customer control, for brightness in RIF mode. Rangeis 0-6310 AUX BRT: (Auxiliary Brightness) Sets adjustment rangeof the customer control, for brightness in AUX mode.Range is 0-63,11 V SIZE: (Vertical Size) Adjust the size of the picturevertically. Range is-0-254.12 H SIZE: (Horizontal Size) Adjust the size of thepicture horizontally. Range is 0-254.13 V PHASE: (Vertical Phase) Shifts picture vertically .Range is 0-714 H PHASE: (Horizontal Phase) shifts picturehorizontally. Range is 0-31.15 AUDLVL: (Audio Level) Set gain for Composite Audio-from Video processor. Range is 0-63.16 RIF AGC: Range is 0-6317 H AFC: There are two settings 0 and 1 . usually 1.18 60 HZSW: (60 Hertz compression) There are twoseftings 0 and 2. Set to 0.19 PIFVCO: (PIF Voltage Controlled Oscillator) Range is0-127.Items 20 through 24 vary with CRT*20 R CUT: Range is 0-25421 G CUT: Range is 0-25422 B CUT: Range is 0-25423 G GAIN: (Green Gain) Range is 0-25424 B GAIN: (Blue Gain) Range is 0-25425 6 KEYS: Set to 1 for the 6 button keyboard27 A VCO: (Audio Decoder Oscillator) Range is 0-63.28 AFILTER: (Audio Filter) Range is 0-63.29 ASPECTRAL: High Frequency separation . Range is0-63.30 WBAND: (Wide Band Low Frecuency Separation)Range is 0-63.31 PIP X1 POS: Range is 0-25432 PIP Y1 POS: Range is 0-25433 PIP X2 POS: Range is 0-25434 PIP Y2 POS: Range is 0-25435 PIP BRIGHTNESS: Range is 0-25436 PIPR CONTRAST: Range is 0-12737 PIPG CONTRAST: Range is 0-12738 PIP B CONTRAST: Range is 0-12739 PIP ADJUST: Range is 0-1540 PIPY DELAY: Range is 0-1541 PIP BGSTART: (PIP Burst Gate Start) Range is 0-31.42 PIP ACCLEVEL: Range is 0-63.43 PIP HX: Range is 0-63.44 PIP VXS: Range is 0-63.46 PIP COMP: Pip external syncronic. Range is 0-3.Differences for 221-1387-0139 PIPY DELAY: Range is 0-1540 PIP BGSTART: (PIP Burst Gate Start) Range is 0-31.41 PIP ACCLEVEL: Range is 0-63.42 PIP HX: Range is 0-6343 PIP VXS: Range is 0-6344 PIP COMP: (Pip External Syncronic) Range is 0-3.45 XTAL: (External Crystal) Range 0-1.* Adjust only if CRT has been changed. The “CUT”adjustments affect the Lowlights and the “GAIN”adjustments affect the Highlights.