Electrical Adjustments - Sony HCD-HDX275 Service Manual

To Execute the Initialize Setup Data
Procedure:
1. Press the [DVD MENU] button on the remote commander and
then press the [CLEAR] button on the remote commander. The
following screen appears on the on-screen display.
Emg. History Check
Laser Hours CD 999h 59min
DVD 999h 59min
Initialize setup data...
[Next]Next page [Prev]Prev page
[0]Return to Top Menu
2. The screen after a while returns to former display.
To Return to the Top Menu of Remocon Diagnosis Menu
Press the [0] button on the remote commander.
5. CHECKING VERSION INFORMATION
To check the version information, please follow the following pro-
cedure.
Procedure:
1. From the top menu of Remocon Diagnosis Menu, select "4.
Version Information" by pressing the [4] button on the remote
commander. The following screen appears on the on-screen
display.
Version information
Firm(Main): Ver. X.XXXX
Firm(Sub): XX.XX
RISC: XXXXXX
8032: XXXXXX
Audio DSP: XX.XX.XX.XX
Servo DSP: XX.XX.XX.XX
[0]Return to Top Menu
2. To return to the top menu of Remocon Diagnosis Menu, press
the [0] on the remote commander.
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

ELECTRICAL ADJUSTMENTS

DVD SECTION
When the base unit is replaced, perform the adjustment and the
measurement as shown below in this order.
EXECUTING IOP MEASUREMENT (See page 25)
27 27
SECTION 5
TUNER SECTION
FM TUNE LEVEL CHECK
signal
generator
set
Procedure:
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
input directly.
Carrier frequency: A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note: Use 75 ohm coaxial cable to connect signal generator and the set.
You cannot use video cable for checking.
Use signal generator whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals.
4. Confi rm "TUNED" is lit on the display for A, B and C sig-
nals.
When the selected station signal is received in good condition,
"TUNED" is displayed.