Mts Adjustment - Sharp 32U-S610 Service Manual

32U-S610
EW-Corner
1. Receive a good local channel.
2. Enter the service mode and select the service
adjustment "D09" for EW-Corner.
3. Adjust the "D09" bus data to get the best linearity for
4 corner points.
Other Adjustments
1. Enter the service mode.
2. Adjust the following data values as listed below.
SERVICE ADJUST
POSITION ITEM
OP1 OPTION1
OP2 OPTION2
OP3 OPTION3
Figure B.
DATA(Hex)
F7
10
0C
Ë MTS ADJUSTMENT
MTS Level Adjustment
1. Receive the following composite signal.
Monaural signal: 400Hz, 100% modulation
2. Connect the rms voltmeter to pin (39) of IC3001.
3. Enter the service mode and select the service
adjustment "M01" and set to "09".
4. Enter the service mode and select the service
adjustment "EX4".
5. Adjust the data so that the rms voltmeter reads 490
±10 mVrms.
MTS VCO Adjustment
1. Keep the unit in no-signal state.
2. Connect the frequency counter to pin (39) of IC3001.
3. Connect a capacitor (100µF, 50V) in between
positive(+) side of C3005 and ground.
4. Enter the service mode and select the service
adjustment "M02"
5. Adjust the data so that the frequency counter reads
62.94 ±0.75kHz.
Filter Adjustment
1. Feed the following stereo pilot signal to pin (14) of
IC3001 .
Stereo pilot signal: 9.4kHz, 600mVrms.
2. Enter the service mode and select the service
adjustment "M03".
3. Adjust the data until "OK" appears in position on the
screen. Make sure the "OK" is displayed almost at
the center of the data range.
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