Electrical Check - Sony HCD-G2BNiP Service Manual

HCD-G2BNiP/G2NiP
DISC TRAY LOCK MODE
This mode is used to unable to take sample disc out of disc tray in
the shop.
Procedure:
1. Press the [ / ] button to turn the power on.
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2. Press the [ ] button to open the disc tray and set the CD.
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3. Press the [ ] button to close the disc tray.
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4. Press two buttons of [ ] and [
x
5. The message "LOCKED" is displayed on the fl uorescent indi-
cator tube and the disc tray is locked. (Even if pressing the [
button, the message "LOCKED" is displayed on the fl uores-
cent indicator tube and the disc tray is locked)
Releasing method:
1. Press two buttons of [ ] and [
x
2. The message "UNLOCKED" is displayed on the fl uorescent
indicator tube and the disc tray is unlocked.
CD SERVICE MODE
This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
1. Press the [ / ] button to turn the power on.
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2. Turn the [FUNCTION] knob to select "CD".
3. Press two buttons of [
M L
ously for 5 seconds, the message "SERVICE MODE" is dis-
played on the fl uorescent indicator tube.
4. Press the [ TUNE –] button to move the optical pick-
l m
up to inside track and the message "SLED IN" is displayed on
the fl uorescent indicator tube, or press the [
+] button to outside track and the message "SLED OUT" is
displayed on the fl uorescent indicator tube.
5. Press the [ ] button, "LD ON" or "LD OFF" is displayed
u
on the fl uorescent indicator tube. Each time [
pressed, laser diode on/off is changed over.
Releasing method:
Press the [ / ] button to turn off the system.
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CHANGE-OVER THE AM TUNING INTERVAL
(G2BNiP: Australisn model)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [ ] button to turn the power on.
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2. Turn the [FUNCTION] knob to select TUNER AM function.
3. Press the [ ] button again to turn the power off (standby).
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4. After pressing the [DISPLAY] button on the remote com-
mander, while pressing the [
the [ ] button.
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5. It turns power on and display "9k STEP" or "10k STEP", and
thus the tuning interval is changed over.
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] for 5 seconds.
Z
] for 5 seconds.
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TUNE +] and [ ] simultane-
u
TUNE
M L
] button is
u
TUNE +] button, press
M L

ELECTRICAL CHECK

FM TUNE LEVEL CHECK
signal
generator
Procedure:
1. Turn on the unit.
2. Input the following signal from signal generator to FM antenna
] input directly.
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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 signals.
When the selected station signal is received in good condition,
"TUNED" is displayed.
SECTION 4
unit