32C230
SERVICE ADJUSTMENT
RF AGC AdjustmentSub-picture and Sub-Bright Adjustments
1. Receive a good local channel.1. Receive the window pattern signal.
2. Enter the service mode and select the service? RF INPUT (TU51)
adjustment "R01".2. Get into service adjustment data "V01" and "V05" and
3. Set the data value to point where no noise or beatset the luminance as shown in figure "A" and "B" as
appears.below respectively.
4. Select another channel to confirm that no noise or? COMPONENT INPUT
beat appears.3. Get in service adjustment data "V42" and "V45" and
Note 1 :You will have to come out of the serviceset the luminance as shown in figure "A" and "B" as
mode to select another channel.below respectively.
Note 2 :Setting the data to "00" will produce a black
raster.
Screen Adjustment
AB
1. Receive a good local channel.
2. Enter the service mode and select the service
adjustment "V03" and set the data value to "00" to
set the color level to minimum. (Record original data
LUMINESCENCE CONFIRMATION
code under adjustment "V03" before changing) You
2
A: 92?10cd/m
may skip this step, if you selected a B/W picture or
2
B: 1.1?0.5cd/m
monoscope pattern.
3. Select the service adjustment "V11" and adjust the
data value to "01", this turn off the luminance signalSub-Tint Adjustment
(Y-mute).1. Receive the half color bar signal.
4. Adjust the master screen control until the raster? RF INPUT (TU51)
darkens to the point where raster is barely seen.2. Get into Y-Mute by R/C, or by setting the "V11" bus
5. Adjust the service adjustments "V06" red, "V07" greendata to "01".
and "V08" blue to obtain a good grey scale with3. Vary the "V02" bus data until the waveform becomes
normal whites at low brightness level.as stated below.
6. Select the service adjustment "V11" and reset data
to "00". Select the service adjustment "V03" and reset
data to obtain normal color level.LEVEL
B-AMP Base waveform in step
7. For component input, the data value of "V46" red,
(TP47B)
"V47" green and "V48" blue is adjusted to follow the
data value of "V06", "V07" and "V08" respectively.
8. Reset the master screen control to obtain normal
brightness range.
Sub-Color Adjustment
White Balance Adjustment1. Receive a good local channel.
1. Receive a good local channel.2. Make sure the customer color control is set to center
2. Enter the service mode and select the serviceposition .
adjustment "V03" and set to "00" (minimum? RF INPUT (TU51)
color)(Record original data code under adjustment3. Enter the service mode and select service adjustment
"V03" before changing). "V03" does not have to be"V03".
adjusted, if you selected a B/W picture or monoscope4. Adjust "V03" data value to obtain a normal color level.
pattern.
3. Alternately adjust the service adjustment data ofFocus Adjustment
"V09" and "V10" until a good grey scale with normal1. Receive a good local channel.
whites is obtained. (RF Input)2. Adjust the focus VR of the flyback transformer to make
4. For component input, the data value of "V49" andthe image as fine as possible.
"V50" is adjusted to follow the data value of "V09"
and "V10" respectively.
5. Select the service adjustment "V03" and reset data
to obtain normal color level.
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ACEC
