66
DEH-P3370XM
6. ADJUSTMENT
6.1 CD ADJUSTMENT
1) Precautions
• This unit uses a single power supply (+5V) for the reg-
ulator. The signal reference potential, therefore, is
connected to VREF(approx. 2.1V) instead of GND.
If VREF and GND are connected to each other by mis-
take during adjustments, not only will it be impossi-
ble to measure the potential correctly, but the servo
will malfunction and a severe shock will be applied to
the pick-up. To avoid this, take special note of the fol-
lowing.
Do not connect the negative probe of the measuring
equipment to VREF and GND together. It is especially
important not to connect the channel 1 negative
probe of the oscilloscope to VREF with the channel 2
negative probe connected to GND.
Since the frame of the measuring instrument is usual-
ly at the same potential as the negative probe, change
the frame of the measuring instrument to floating sta-
tus.
If by accident VREF comes in contact with GND,
immediately switch the regulator or power OFF.
• Always make sure the regulator is OFF when connect-
ing and disconnecting the various filters and wiring
required for measurements.
• Before proceeding to further adjustments and mea-
surements after switching regulator ON, let the player
run for about one minute to allow the circuits to stabi-
lize.
• Since the protective systems in the unit's software are
rendered inoperative in test mode, be very careful to
avoid mechanical and /or electrical shocks to the sys-
tem when making adjustment.
• The RFI and RFO signals are easy to oscillate because
of a wide band. When observing them, insert a resis-
tor of about 1 k
Ω
to the series.
• This equipment will not guarantee the load ejection
operation when the mechanical unit is turned upside
down. In particular, if the ejection operation is incor-
rectly performed and recovery is disabled, the recov-
ery is enabled by resetting a product or turning ACC
off to on.
2) Test Mode
This mode is used for adjusting the CD mechanism
module of the device.
• Test mode starting procedure
Reset while pressing the
4
and
6
keys together.
• Test mode cancellation
Switch ACC, back-up OFF.
• After pressing the EJECT key, do not press any other
key until the disk is completely ejected.
• If the
]
or
[
key is pressed while focus search is in
progress, immediately turn the power off (otherwise
the actuator may be damaged due to adhesion of the
lenses).
• Jump operation of TRs other than 100TR continues
after releasing the key. CRG move and 100TR jump
operations are brought into the “Tracking close” sta-
tus when the key is released.
• Powering Off/On resets the jump mode to “Single
TR(91)”, the RF AMP gain setting to 0 dB, and the
automatic adjustment value to the initial value.
Содержание DEH-P3370XM UC
Страница 4: ...4 DEH P3370XM A C B 2 2 EXTERIOR ...
Страница 6: ...6 DEH P3370XM D 2 3 CD MECHANISM MODULE ...
Страница 28: ...F RF MODULE 28 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A 3 6 RF UNIT GUIDE PAGE F F a ...
Страница 29: ...29 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A F b F E CN502 ...
Страница 30: ...F RF MODULE 30 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A F a F a F b 1 ...
Страница 31: ...31 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A F a F a F b 2 3 ...
Страница 32: ...32 1 2 3 4 1 2 3 4 D C B A F a F b F b DEH P3370XM 1 ...
Страница 33: ...33 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A F b F a F b 2 3 E CN502 ...
Страница 34: ...34 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A CDEC SDRAM E CN503 G DSP MODULE 3 7 DSP UNIT GUIDE PAGE G G a ...
Страница 35: ...35 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A G b G SSDEC DAC CAP ST19AF08BR20QMAA ...
Страница 36: ...36 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A S G DSP MODULE G a G a G b 1 ...
Страница 37: ...37 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A G a G a G b 2 CDEC E CN503 ...
Страница 38: ...38 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A G a G b G b DAC SDRAM CAP 1 ...
Страница 39: ...39 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A G b G a G b 2 SSDEC ST19AF08BR20QMAA ...
Страница 42: ...42 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A A TUNER AMP UNIT A ...
Страница 43: ...43 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A A SIDE B ...
Страница 47: ...47 DEH P3370XM 1 2 3 4 D C B A 1 2 3 4 SIDE B D CLAMP 8EJ CONTROL UNIT D ...
Страница 48: ...48 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A 4 5 MAIN UNIT E IC Q F CN3 E MAIN UNIT RESET IP BU ...
Страница 49: ...49 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A SIDE A E IP BUS IP BUS CORD ASSY G CN201 A CN701 ...
Страница 50: ...50 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A E E MAIN UNIT ...
Страница 51: ...51 DEH P3370XM 5 6 7 8 5 6 7 8 D C B A SIDE B E ...
Страница 52: ...52 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A 4 6 RF MODULE SIDE A F IC Q F RF MODULE XM ANTENNA ...
Страница 53: ...53 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A F SIDE B IC Q E CN502 F RF MODULE ...
Страница 54: ...54 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A 4 7 DSP MODULE SIDE A G IC Q G DSP MODULE ...
Страница 55: ...55 DEH P3370XM 1 2 3 4 1 2 3 4 D C B A G SIDE B IC Q E CN503 G DSP MODULE ...
Страница 69: ...69 DEH P3370XM Grating waveform Ech Xch 20mV div AC Fch Ych 20mV div AC 45 0 75 60 30 90 ...