DEH-5200SD/XNEW5
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8. EACH SETTING AND ADJUSTMENT
8.1 CD ADJUSTMENT
1) Cautions on adjustments
In this product the single voltage (3.3 V) is used for the
regulator. The reference voltage is the REFO1 (1.65 V)
instead of the GND.
If you should mistakenly short the REFO1 with the GND
during adjustment, accurate voltage will not be obtained,
and the servo’s misoperation will apply excessive shock
to the pickup. To avoid such problems:
a. Do not mix up the REFO1 with the GND when
connecting the (-) probe of measuring instruments.
Especially on an oscilloscope, avoid connecting the (-)
probe for CH1 to the GND.
b. In many cases, measuring instruments have the same
potential as that for the (-) probe. Be sure to set the
measuring instruments to the floating state.
c. If you have mistakenly connected the REFO1 to the GND,
turn off the regulator or the power immediately.
Before mounting and removing filters or leads for
adjustment, be sure to turn off the regulator.
For stable circuit operation, keep the mechanism
operating for about one minute or more after the
regulator is turned on.
In the test mode, any software protections will not
work. Avoid applying any mechanical or electrical
shock to the mechanism during adjustment.
The RFAGC and RFO signals with a wide frequency range
are easy to oscillate. When observing the signals,
insert a resistor of 1k ohms in series.
The load and eject operation is not guarantied with the
mechanism upside down. If the mechanism is blocked
due to mistaken eject operation, reset the product or
turn off and on the ACC to restore it.
2) Test mode
This mode is used to adjust the CD mechanism module.
To enter the test mode.
[BAND] + [RDM] -> Reset
To exit from the test mode.
Turn off the ACC and back up.
Notes:
a. During ejection, do not press any other keys than the
EJECT key until the loaded disc is ejected.
b. If you have pressed the (
→
) key or (
←
) key during focus
search, turn off the power immediately to protect the
actuator from damage caused by the lens stuck.
c. For the TR jump modes except 100TR, the track jump
operation will continue even if the key is released.
d. For the CRG move and 100TR jump modes, the tracking
loop will be closed at the same time when the key is
released.
e. When the power is turned off and on, the jump mode
is reset to the single TR (91), the RF amp gain is set to 0 dB,
and the auto-adjustment values are reset to the default
settings.
When a CD-DA (regular music CD) is played in the CD
test mode, its sound quality will be temporarily
deteriorated. The CD will then repeat normal, deteriorated,
normal… playback.
This is due to the difference in the playback modes
between the normal operation mode and the CD test
mode, and the interval of generating deteriorated mode
and the time taken to return to the normal mode depend
on the error of each clock.
The time taken to turn to the deteriorated mode is at a
minimum around 20 seconds while the time to return to
the normal mode is maximum 40 seconds approximately.
Make sure to check the sound quality in the normal
operation mode.
Summary of Contents for DEH-5200SD/XNEW5
Page 9: ...DEH 5200SD XNEW5 9 5 6 7 8 5 6 7 8 C D F A B E 2 2 DISC CONTENT FORMAT ...
Page 39: ...DEH 5200SD XNEW5 39 5 6 7 8 5 6 7 8 C D F A B E ...
Page 44: ...DEH 5200SD XNEW5 44 1 2 3 4 1 2 3 4 C D F A B E 9 3 EXTERIOR 2 A B B A A C C ...
Page 61: ...DEH 5200SD XNEW5 61 5 6 7 8 5 6 7 8 C D F A B E B PD8192B9 B KEYBOARD UNIT ...
