GOODMANS 285NS(B)
Service Manual

4. WHITE BALANCE 1) Set the TV to NOR I mode. 2) Set the R,G,B LEVEL to CENTER with R,G,B UP/DOWN KEY . 3) Adjust the R,G,B UP/DOWN KEY of the other color which did not appear on the screen to obtain WHITE. 5. FOCUS 1) Apply a RETMA PATTERN signal. 2) Adjust the FOCUS VOLUME on FBT to obtain optimal resolution. 6. GEOMETRY 6.1 VERTICAL CENTER 1) Set the TV to NOR I mode. 2) Pressing the V-SIZE UP/DOWN KEY, the lower half of the screen is blanked. 3) Adjust the border line of blanked picture coincident with the mechanical center marks of the CRT using the V-SIZE UP/DOWN KEY.

6.2 VERTICAL SIZE The VERTICAL CENTER adjustment has to be done in advance. 1) Apply a RETMA PATTERN signal. 2) Set the TV to NOR I mode. 3) Adjust the upper part of the picture with the V-SIZE UP/DOWN keys.

6.3 VERTICAL SLOPE The VERTICAL SIZE adjustment has to be done in advance. 1) Apply a RETMA PATTERN signal. 2) Adjust the lower part of the picture with the V-SLOPE UP/DOWN keys.

6.4 VERTICAL S-CORRECTION 1) Apply a CROSSHATCH PATTERN signal. 2) Adjust the S-COR UP/DOWN KEY to obtain the same distance between horizontal lines.

6.5 HORIZONTAL CENTER 1) Apply a RETMA PATTERN signal. 2) Adjust picture centering with CENTER LEFT/RIGHT keys.

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