DV-565A-S
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No.
Symptoms
Diagnosis Contents
Possible Defective Points
4
A tray cannot be opened.
(An opening screen is
displayed on the monitor)
Does the voltage of CN103-pin 3 and pin 5 on the DVDM Assy change
normally ?
Pin 3 (XCLOSE): Tray is fully closed: "H"
Pin 5 (OPEN): Tray is fully opened: "H"
DVDM Assy
Front End IC (IC301)
Tray SW
Is a LOAD-DRV signal reaching ?
DVDM Assy
Back End IC (IC601)
Are the signals output from IC101 pin 36 and pin 37 (CN103 pin 1 and
pin 2) on the DVDM Assy ?
Pin 36: Approx. 6V during opening tray approx. 0V during closing tray.
Pin 37: Approx. 0V during opening tray approx. 6V during closing tray.
DVDM Assy
FTS Driver IC (IC101)
Are wires of CN104 and CN103 on the DVDM Assy disconnected or
damaged ?
Connector / cable
Does the voltage of CN102-pin 12 change by pressing the Inside
switch.
Inside switch
5
Playback impossible
(no focusing)
Are the signals output from IC101-pin 34 (F_DRV) and pin 35
(F_RTN) on the DVDM Assy ?
DVDM Assy
FTS Driver IC (IC101)
Does 650-nm LD emit light ?
Does a pickup lens move up / down ?
Does an actuator spring bend ?
Pickup
Are plastic parts damaged ? Or is a shaft detached ?
Is the turntable detached or tilted ?
Mechanism section (motor)
Is flexible cable of CN101 on the DVDM Assy disconnected or
damaged ?
Flexible cable / connector
Is signal output from IC301-pin 33 (FACT) on the DVDM Assy ?
(Device control of about 500 mV is output usually. It is fluctuated by
about
±
100 mV with focus up / down.)
DVDM Assy
Front End IC (IC301)
6
Playback impossible
(Spindle does not turn)
Are the signals output from IC101-pin 12 (A3), pin 13 (A2) and pin 14
(A1) on the DVDM Assy ?
Is pin 41 (PS) fixed LOW and is pin 38 (SB) fixed HIGH ?
DVDM Assy
FTS Driver IC (IC101)
Is there any part detached from the spindle motor ?
Or Is there any foreign object lodged in it ?
Mechanism section
(Spindle motor)
Are wires of CN102 on the DVDM Assy disconnected or damaged ?
Flexible cable / connector
Is signal output from IC301-pin 44 (SPDL_PDM) on the DVDM Assy ?
DVDM Assy
Front End IC (IC301)
7
Playback impossible
(Playback stops)
Does 650-nm LD deteriorate ?
If the voltage at both ends of R201 on the DVDM Assy is 0.7 V or
more, the 650-nm LD is definitely deteriorated.
650-nm LD deteriorated.
(When playback of a DVD is
impossible)
Does 780-nm LD deteriorate ?
If the voltage at both ends of R211 on the DVDM Assy is 1.2 V or
more, the 780-nm LD is definitely deteriorated.
780-nm LD deteriorated.
(When playback of a CD is
impossible)
Is there abnormality in FG waveform ?
DVDM Assy
FG output : FTS Driver IC (IC101)
Are there scratches or dirt on the disc ?
Disc
8
Picture disturbance during
playback
(block noise, freeze, other)
Are there scratches or dirt on the disc ?
Is there a problem with the format of the disc ?
Disc
Check the waveform (BCK, LRCK, MCLK, DATA).
DVDM Assy
Back End IC (IC601)
Is signal output from signal (IC201-pin 17, pin 18, pin 13, pin 12) on the
JCKB Assy ?
JCKB Assy
Audio Dac IC (IC201)
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