JVC AV-48P775/H Service Manual

Contents

(No.YA173)1-474.6.4.3 DEFLECTION ADJUSTMENTItem Measuringinstrument Test point Adjustment part DescriptionV. POSITION /V.SIZE /V.LINEARITYadjustmentSignalgeneratorRemotecontrol unit[1.PICTURE/SOUND]D01 : V. SIZED05 : V. LINED06 : V. CENTF62 : Withoutconvergence operation• To memorize every time after finish adjustment on eachmode.(1) Receive NTSC circle pattern signal.(2) Select FULL mode with [ASPECT] key.(3) Select 1. PICTURE/SOUND from SERVICE MENU.(4) Select < F62 > (Without convergence operation).(5) Change the data 0 to 1, then it makes picture withoutconvergence operation.(6) Select < D01 > (V. SIZE), < D05 > (V. LINE) and< D06 > (V. CENT).(7) Adjust < D01 >, < D05 > and < D06 > to make A = B(precision ±2mm), and adjust to make C same valueas table.(8) After adjustment, select < F62 > and change thedata 1 to 0.(9) Press [MUTING] key to memorize the set value.NOTE :Do not adjust < D04 > (V. SCORE), if it is differentvertical position after adjust vertical linearity, to adjustvertical position.H. POSITIONadjustmentSignalgeneratorRemotecontrol unit[1.PICTURE/SOUND]D14 : H. CENTERF62 : Withoutconvergence operation(1) Receive NTSC circle pattern signal.(2) Select FULL mode with [ASPECT] key.(3) Select 1. PICTURE/SOUND from SERVICE MENU.(4) Select < F62 > (Without convergence operation).(5) Change the data 0 to 1, then it makes picture withoutconvergence operation.(6) Select < D14 > (H. CENTER).(7) Adjust < D14 > to make D = E as shown figure.(8) After adjustment, select < F62 > and change thedata 1 to 0.(9) Press [MUTING] key to memorize the set value.H. SIZEadjustmentSignalgeneratorRemotecontrol unit[1.PICTURE/SOUND]D03 : H. SIZEF62 : Withoutconvergence operation(1) Receive NTSC crosshatch signal.(2) Select FULL mode with [ASPECT] key.(3) Select 1. PICTURE/SOUND from SERVICE MENU.(4) Select < F62 > (Without convergence operation).(5) Change the data 0 to 1, then it makes picture withoutconvergence operation.(6) Select < D03 > (H. SIZE).(7) Adjust < D03 > to make sure that the vertical screensize of the picture size is 92%.(8) After adjustment, select < F62 > and change thedata 1 to 0.(9) Press [MUTING] key to memorize the set value.Cno-signal areano-signal areaCBAC 35mm 50mmAV-48P775 AV-56P775AV-56P785D EPicture size100%Screen size(92%)