SHARP 29BS10S
Manual de Servicio

CUT OFF, BKGD, SUB-CONT ADJUSTMENT
No. Adjustment point 3 MAX BEAM R1759 Adjustment Condition / Procedure 1. Receive the Monoscope pattern signal with standard mode. 2. Make the image normal with the remote controller. 3. Connect the beam ammeter between TP1601 and TP1602. Ammeter full scale: 3mA range Connect the TP1602 to the - side of the ammeter. Connect the TP1601 to the + side of the ammeter. 4. Adjust the beam current to 1.6mA ± 50µA with R1759 (sub-contrast VR). Note: Apply the adjustment after aging with the beam current 1,500 ± 50µA or more for 30 min or more. (On the white or green monocolour screen.) Waveform or others

HORIZONTAL, VERTICAL, DEFLECTION LOOP AND ADJUSTMENT
No. Adjustment point 1 V-SIZE 50 Adjustment Condition / Procedure Waveform or others The receiving channel in ( ) are the following signals. (E-2) : Crosshatch (50Hz) (E-5) : Monoscope (50Hz) Adjust the overscan to 8.5 ± 0.5% (Monoscope) (E-5) V-LINEARITY 50 Adjust the linearity to the best. (E-2) V-S CORR~ Already preset (**). (Adjust this unless the linearity is achieved.) (E-2) V-CENT50 Align the center of the screen to the geometric center of CRT. (E-5) H-CENT50 Align the center of the screen to the geometric center of CRT. (E-5) H-SIZE50 Adjust the overscan to 8.5 ± 0.5% (E-5) E/W PARABOLA50 Adjust the end of the line of the crosshatch to be (SIDE-PIN) straight. (E-2) EW-CORNER50 Adjust the end of the line of the crosshatch to be (SUB-SIDEPIN) straight. (E-2) TRAPEZIUM (50) Already preset. (Adjust if the quality is specially poor.) (E-2) OTHER On the items of V-AMPLITUDE60, V-LINEARITY60, V-S CORRECTION60, V-PHASE60, H-PHASE60, H-SIZE60, E/WPARABOLA60, E/W-PARABOLA60 and TRAPEZIUM (60), the compensation data is automatically input if the 50Hz mode adjustment is done.

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SUBBRIGHTNESS ADJUSMENT (I2C BUS CONTROL) (RF SIGNAL)

1. Receive the window pattern signal with AV input. 2. Make the image normal with the remote controller. 3. Select the sub-bright adjustment mode with the remote controller, and adjust the right dark white area of the window pattern to 2.7 ± 0.3cd.

* Receive the crosshatch pattern signal or equivalent signal. 1. Make the image normal with the remote controller. 2. Adjust the 3rd (1 thru 5 from the left) black of the window pattern to sink. 2 FOCUS ADJUSTMENT 1. Receive the Monoscope pattern signal. 2. With the remote controller, make the image normal. 3. Adjust the focus VR to make the vertical line of "5" in "E-5" display upper left part of screen as fine as possible.

However, if it is largely deviated when it is checked in the 60Hz mode, readjust it in the 60Hz mode.

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5

5
This vertical line make as fine as possible

CUT OFF POINT

SUBCONTRAST I2C BUS ADJUSTMENT (RF SIGNAL)

1. Receive the window pattern signal with AV input. 2. Make the image normal with the remote controller. 3. Select the SUB-CONTRAST adjustment mode with the remote controller, and adjust 50% white to 110 ± 3cd.

Note: Use "Y" of Minolta colour analyzer CA-100 in adjustment.

29B-S10S/G

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