35
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-1550/XU/ES
6. ADJUSTMENT
6.1 CD ADJUSTMENT
1) Cautions on adjustments
• In this product the single voltage (3.3V) is used for the
regulator. The reference voltage is the REFO1 (1.65V)
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 RFI 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.
While pressing the 4 and 6 keys at the same time, 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.
Содержание DEH-1550 XU
Страница 4: ...1 SPECIFICATIONS 4 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES ...
Страница 6: ...6 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES 2 2 EXTERIOR ...
Страница 8: ...8 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES C 2 3 CD MECHANISM MODULE ...
Страница 14: ...14 a C CN701 FM AM TUNER UNIT 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES ...
Страница 15: ...15 A a A b A a A a B CN1801 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES ...
Страница 18: ...18 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES 3 3 KEYBOARD UNIT B ...
Страница 19: ...5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 19 B CLOCK LOUD LOC BSM EQ B KEYBOARD UNIT A CN831 40mA 14V ...
Страница 25: ...5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 25 A SIDE A FRONT ANTENNA FM AM TUNER UNIT ...
Страница 26: ...26 A A TUNER AMP UNIT 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES ...
Страница 27: ...A SIDE B 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 27 ...
Страница 29: ...5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 29 ...
Страница 31: ...5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 31 C C CD CORE UNIT S10 SIDE B CLAMP DSCSNS 8EJ 12EJ ...
Страница 55: ...55 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES 8 OPERATIONS ...
Страница 56: ...56 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES 56 ...
Страница 57: ...57 5 6 7 8 F E D C B A 5 6 7 8 DEH 1550 XU ES ...
Страница 58: ...58 1 2 3 4 1 2 3 4 F E D C B A DEH 1550 XU ES About the fixing screws for the front panel CXX1066 CXX1066 ...