(5) Press the service only switch (on

POWER/DEFLECTION PWB). The pattern displayed is now the digital convergence mode.

(6) When performing a complete digital convergence adjustment CLEAR DATA in RAM. See 2.6. (1) - (7).

Adjustment Point

JIG SCREEN SPECIFICATION

GEOMETRIC CENTER OF THE SCREEN

(84.9) [102.1]

[1227.2]

ki

MODEL: (50”), [60”]

a

UNIT: mm

 

Note: If only minor adjustments to convergence are needed, the jig screen is not necessary. Use digital data stored in memory and one color as a reference (red, green, or blue). DO NOT CLEAR DATA and WRITE to ROM memory.

2.14.1 Phase adjustment (service mode)

Adjustment preparation

(1)PHASE adjustment - This is to match the digital convergence cursor position to the video image displayed, and to match the digital convergence cursor position (dotted lines) to digital convergence data position (bent lines).

Adjustment procedure

(1)Press the HELP button on the remote to select phase adjustment. (Only Green displayed).

(2)Identify the bent lines and use the cursor buttons to move the dotted lines in between as

shown.

I:;Press HELP to exit PHASE mode.

Press ENTER 5 times to display external signal.

(5)Identify center of active video, then press ENTER 5 times to return to internal cross-hatch.

(6)Press HELP (phase adj.), and use 2, 4, 5 and 6 to position internal cross-hatch center on active video center identified in step (5).

(7)Press HELP to exit PHASE mode.

BEFORE

ACTIVE

VIDEO

CENTERUSE CURSOR KEYS TO MOVE

FROMDOTTED LINES

STEP (5)

3ElWEEN BENT

LINES FIRST

THEN USE NUMBER KEYS TO MATCH INTERNAL

CROSSHATCH CENTER TO ACTIVE VIDEO CENTER

AFTER

2.14.2 Raster position adjustment

Adjustment preparation

(1)Position adjustment - This will move an entire color. Use this adjustment to match colors at the center of the screen. (Active video center from external signal and physical screen center should now match from phase adj. 2.15.1.).

(2)Use the buttons below to switch color to adjust. “RECALL’ - Green

“0” - Red “INPUT” - Blue

Adjustment procedure

(1)Press the FRZ button. Extra horizontal lines appear to confirm raster position mode.

(2)Use the cursor buttons to adjust position.

(3)Press FRZ again to exit raster position mode. Notes: (1) Other functions cannot be accessed when

in raster position adjustment mode. Press FRZ and confirm extra horizontal lines disappear to exit raster position mode.

(2)Press MENU to switch between all colors displayed or adjustment color and Green only.

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Hitachi 50SBX78B, 60SBX78B service manual JIG Screen Specification, Before, After
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60SBX78B, 50SBX78B specifications

The Hitachi 50SBX78B and 60SBX78B are advanced plasma televisions that represent the pinnacle of display technology in their respective categories. These models bring together innovative features, cutting-edge technology, and sleek design, ensuring an immersive viewing experience for consumers.

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In summary, the Hitachi 50SBX78B and 60SBX78B offer a compelling package of features, technologies, and characteristics that cater to the needs of modern viewers. With superior image quality, versatile connectivity, and energy efficiency, these televisions are designed to deliver an exceptional home entertainment experience.
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