XDR-S60DBP - Sony Audio Service Manual (repair manual). Page 14

Procedure:
1.  Input the following signal from signal generator to DAB an-

tenna input.

 

Output frequency:  174.928 MHz –49 dBm

2.  Dry battery is set to the unit.
3.  Telescopic antenna is perpendicularly set to the unit.
4.  Enter the test mode.
5.  [TUNER/SELECT/ENTER] jog is turned in the clockwise or 

counterclockwise direction, select the “<DAB CHECK>”, and 
press the [TUNER/SELECT/ENTER] button.

 

<DAB CHECK>

01:174.928MHz

CER:

6.  Headphone is inserted in headphone jack (J401) and checks 

that the sound is outputted from headphone.

7.  Press the [BACK] button, return to the test mode menu.
8.  [TUNER/SELECT/ENTER] jog is turned in the clockwise or 

counterclockwise direction, select the “<AUX CHECK>”, and 
press the [TUNER/SELECT/ENTER] button.

 

<AUX CHECK>

Signal:OFF

9.  [VOLUME] jog is turned in the clockwise direction to a maxi-

mum.

10.  The sound source (CD etc.) is inputted into the AUDIO IN jack 

(J402) of this unit.

11. It checks that the display has changed to “Signal:ON” from 

“Signal:OFF”. And the sound is outputted from a speaker, and 
checks that there is no defective sound quality.

12. Volume is lowered, pull out the headphone and AUDIO IN 

connecting cord.

13. Remove dry battery.

Procedure:
1.  Input the following signal from signal generator to FM antenna 

input.

 

Output frequency:  87.5 MHz

 

Deviation: 

75 kHz/M+S 37 %

 

Output level: 

54 dBuV/m

2.  L and R channels are outputted from the signal generator.
3.  AC adaptor is inserted in DC IN jack (J101).
4.  Enter the test mode.
5.  [TUNER/SELECT/ENTER] jog is turned in the clockwise or 

counterclockwise direction, select the “<FM CHECK>”, and 
press the [TUNER/SELECT/ENTER] button.

 

(Displayed characters/values in the following fi gure are example)

 

<FM CHECK>

01: 87.5MHz

PI:----

Count:-----

6.  [VOLUME] jog is turned to center, headphone is inserted in 

headphone jack (J401) and checks that the sound is outputted 
from headphone.

 

It checks that there is no defect. Monaural, reception cannot be 
carried out and sensitivity is weak, etc.

7.  [VOLUME] jog is turned in the counterclockwise direction to 

a minimum. The sound from a headphone becomes small suit-
ably, and checks that there is no defective sound quality.

 

(Sound is not outputted at the time of a minimum)

8.  [VOLUME] jog is turned in the clockwise direction to a maxi-

mum. The sound from a headphone becomes large suitably, 
and checks that there is no defective sound quality.

9.  Headphone is pull out from the unit. Checks that the unit is 

struck 3 times lightly and the sound from a speaker does not 
have interruption and defective sound quality.

10. [VOLUME] jog is turned in the counterclockwise direction to 

a minimum. The sound from a speaker becomes small suitably, 
and checks that there is no defective sound quality.

 

(Sound is not outputted at the time of a minimum)

11.  [VOLUME] jog is turned in the clockwise direction to a maxi-

mum. The sound from a speaker becomes large suitably, and 
checks that there is no defective sound quality.

12. The audio connecting cord from an oscilloscope is inserted in 

the headphone jack (J401).

13. The stereo waveforms are checked with an oscilloscope.
 

 

14. R channel is outputted from the signal generator, and R chan-

nel waveform is checked with an oscilloscope.

 

 

15.  L channel is outputted from the signal generator, and L channel 

waveform is checked with an oscilloscope.

 

 

16. The audio connecting cord from an oscilloscope is pull out the 

headphone jack (J401).

17. Pull out the AC adaptor.