CDX-C460, CDX-C560 - Sony Car Audio Service Manual (repair manual). Page 22

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This set have the test mode function. In the test mode, FM Auto Scan/
Stop Level and AM Auto Scan/Stop Level adjustments can be per-
formed easier than it in ordinary procedure.

<Set the Test Mode>
1. Set the “OFF” mode.
2. Push the preset  4  button.
3. Push the preset  5  button.
4. Press the preset  1  button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.

<Release the Test Mode>
1. Push the  OFF  button.

When the tuner unit is defective, replace it by a new one because
its internal block is difficult to repair.

Note on Adjustment
The adjustments of tuner section, should be performed according to
the following sequence.
1. FM Auto Scan/Stop Level Adjustment
2. FM Stereo Separation Adjustment
3. AM Auto Scan/Stop Level Adjustment

FM Auto Scan/Stop Level Adjustment
Setting :

D-BASS switch (CDX-C460)

: OFF

SOURCE button

: FM

FREQUENCY SELECT switch (E model) : FM 200k

Procedure :
1. Set to the test mode.
2. Push the  SOURCE  button and set to FM.

Display

3. Push the preset  3  button.

Display

SHUF1

4. Adjust with the volume RV2 on TU1 so that the “FM” indication

turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV2 so that put
out light “0” indication and adjustment.

Display

Adjustment Location : See page 24.

SHUF1

SHUF1