SECTION 3
ELECTRICAL ADJUSTMENTS
CD SECTIONFM Auto Scan/Stop Level Adjustment
Setting :CD section adjustments are done automatically in this set.
D-BASS switch : OFF
SOURCE button : FM TUNER SECTION0 dB = 1 mV
FM RF signal
Cautions during repairgenerator
When the tuner unit is defective, replace it by a new one
antenna
because its internal block is difficult to repair.terminal
0.01 ?F
TEST MODEset
This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and MW Auto Scan/Stop Level adjustments canCarrier frequency: 98.00 MHz
be performed easier than it in ordinary procedure.Output level: 22 dB (12.6 mV)
Mode: mono
Modulation: 1 kHz, 22.5 kHz deviation (30%)<Set the Test Mode>
1. Set the OOFF� mode.
Procedure :2. Push the preset 4 button.
1. Set to the test mode.
3. Push the preset 5 button.
2. Push the SOURCE button and set to FM.4. Press the preset 1 button for more than two seconds.
Display
5. Then the display indicates all lights, the test mode is set.
SHUF
<Release the Test Mode>
1. Push the OFF button.
Note on Adjustment
3. Push the preset 3 button.
The adjustments of tuner section, should be performed according
Displayto the following sequence.
1. FM Auto Scan/Stop Level AdjustmentSHUF
2. FM Stereo Separation Adjustment
3. FM Polar VCO Adjustment
4. FM Polar Pilot Adjustment
5. MW Auto Scan/Stop Level Adjustment
4. Adjust with the volume RV2 on TU1 so that the OFM� indication
turns to OFM0� indication on the display window.
But, in case of already indicated OFM0�, turn the RV2 so that
put out light O0� indication and adjustment.
Display
SHUF
Adjustment Location : See page 22.
� 19 � |
ACEC
SONY
