Sharp 34N-WF5H, Service Manual

Page: 25 / 87

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34N-WF5H
No. AdjustingPoint Adjusting Procedure
33 White balance adjust-
ment at HD-IN
(1080I RGB) signal input 1. Set the AV mode to "STD-1". Feed the monoscope pattern signal (1080I)
through the INPUT3/HD INPUT (D-sub 15-pin) terminal. Select and receive
the INPUT3 HD-IN signal.
2. Select the JWS address and make the raster look whitish. (This address is
the same as for the usual white balance adjustment.)
3. Turn down the picture and brightness almost to the cut-off level. Select the
cut-off adjustment address (see Table 3.) and adjust so that the raster turns
gray. (At this time, keep the minimum-level color intact and select the JWS
cut-off address for other colors.)
4. Repeat the above steps 2. and 3., and adjust the white balance on the
bright screen.
5. Make the brightness adjustment as well.
34 Brightness adjustment at
HD-IN (1080I RGB) signal
input
(R/C, JWS address 174) 1. Make this adjustment after the white balance adjustment at HD-IN signal
input.
2. Take the same steps 1. and 2. for the tint adjustment at HD-IN signal input.
3. Enter the JWS address 174. Using the VOLUME UP/DOWN keys, visually
adjust to the normal brightness level.
35 Picture adjustment at
HD-IN (1080I RGB) signal
input
(R/C, JWS address 173) 1. Take the same steps 1. and 2. for the brightness adjustment at HD-IN signal
input.
2. Enter the JWS address 173. Using the VOLUME UP/DOWN keys, visually
adjust to the normal contrast range.
36 White balance adjust-
ment at HD-IN
(480P RGB) signal input 1. Set the AV mode to "STD-1". Input the monoscope pattern signal (480P)
through the INPUT3/HD INPUT (D-sub 15-pin) terminal. Select and receive
the INPUT3 HD-IN signal.
2. Select the JWS address and make the raster look whitish. (This address is
the same as for the usual white balance adjustment.)
3. Turn down the picture and brightness almost to the cut-off level. Select the
cut-off adjustment address (see Table 3.) and adjust so that the raster turns
gray. (At this time, keep the minimum-level color intact and select the JWS
cut-off address for other colors.)
4. Repeat the above steps 2. and 3. and adjust the white balance on the
bright screen.
5. Make the brightness adjustment as well.
37 Brightness adjustment at
HD-IN (480P RGB) signal
input
(R/C, JWS address 174) 1. Make this adjustment after the white balance adjustment at HD-IN signal
input.
2. Take the same steps 1. and 2. for the tint adjustment at HD-IN signal input.
3. Enter the JWS address 174. Using the VOLUME UP/DOWN keys, visually
adjust to the normal brightness level.
38 Picture adjustment at
HD-IN (480P RGB) signal
input
(R/C, JWS address 173)
1. Take the same steps 1. and 2. for the brightness adjustment at HD-IN signal
input.
2. Enter the JWS address 173. Using the VOLUME UP/DOWN keys, visually
adjust to the normal contrast range.