Pioneer XV-LX61DV Service Manual page 25

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No. Symptoms
4 A tray cannot be opened.
(An opening screen is
displayed on the monitor)
5 Playback impossible
(no focusing)
TE
L 13942296513
6 Playback impossible
(Spindle does not turn)
7 Playback impossible
(Playback stops)
8 Picture disturbance during
playback
(block noise, freeze, other)
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Does the voltage of CN1965-pin 1 and pin 3 on the 4IN1 MOD Assy
change normally ?
Pin 1 (CLOSE (TRIN)): Tray is fully closed: "L"
Pin 3 (OPEN (TROUT)): Tray is fully opened: "L"
Is the signal input into IC1101-pin 1 (TROPEN), pin 28 (TRCLOSE) on
the 4IN1 MOD Assy?
Pin 1: Approx. 0 V during opening tray approx. 3.3 V during closing tray.
Pin 28: Approx. 3.3 V during opening tray approx. 0 V during closing
tray.
Are the signals output from CN1965-pin 5 and pin 4 on the 4IN1 MOD
Assy?
Pin 5: Approx. 5 V during opening tray approx. 1 V during closing tray.
Pin 4: Approx. 0 V during opening tray approx. 6 V during closing tray.
Are wires of CN1964 and CN1965 on the 4IN1 MOD Assy
disconnected or damaged ?
Does the voltage of CN1964-pin 5 on the 4IN1 MOD Assy change to 0
V by pressing the Push switch.
Are the signals output from IC1101-pin 16 (F+) and pin 15 (F–) on the
4IN1 MOD Assy ?
Does 650-nm LD emit light ?
Does a pickup lens move up / down ?
Does an actuator spring bend ?
Are plastic parts damaged ? Or is a shaft detached ?
Is the turntable detached or tilted ?
Is flexible cable of CN1965 on the 4IN1 MOD Assy disconnected or
damaged ?
Is signal output from IC1201-pin 41 (FOSO) on the 4IN1 MOD Assy ?
(Device control of about 1.4 V is output usually. It is fluctuated by about
250 mV with focus up / down.)
Are the signals output from IC1101-pin 12 (MOT_SPDL–) and pin 11
(MOT_SPDL+) on the 4IN1 MOD Assy ?
Is pin 21 (STBY) fixed LOW ? (pin 21 is High at playback: 3 V)
Is there any part detached from the spindle motor ?
Or Is there any foreign object lodged in it ?
Are wires of CN1964 on the 4IN1 MOD Assy disconnected or damaged
?
Is signal output from IC1201-pin 36 (DMSO) on the 4IN1 MOD Assy ?
Does 650-nm LD deteriorate ?
If the voltage at each both ends of R1322 and R1325 on the 4IN1 MOD
Assy is 0.4 V or more, the 650-nm LD is definitely deteriorated.
Does 780-nm LD deteriorate ?
If the voltage at each both ends of R1321 and R1326 on the 4IN1 MOD
Assy is 0.4 V or more, the 780-nm LD is definitely deteriorated.
Are there scratches or dirt on the disc ?
Are there scratches or dirt on the disc ?
Is there a problem with the format of the disc ?
Check the video signals.
Composite video signal (IC1401-pin 23)
S video signal (IC1401-pin 21, pin 26)
RGB video signal (IC1401-pin 16, pin 18, pin 20)
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Diagnosis Contents
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XV-LX61DV
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9 4 2 8
Possible Defective Points
DVD MECHA Assy
Switch (SW1)
4IN1 MOD Assy
DVD IC (IC1201)
4IN1 MOD Assy
FTS Driver IC (IC1101)
Connector / cable
Push switch (SW2)
4IN1 MOD Assy
FTS Driver IC (IC1101)
Pickup
Mechanism section (motor)
Flexible cable / connector
0 5 8 2 9 9 4 2 8
4IN1 MOD Assy
DVD IC (IC1201)
4IN1 MOD Assy
FTS Driver IC (IC1101)
Mechanism section
(Spindle motor)
Flexible cable / connector
4IN1 MOD Assy
DVD IC (IC1201)
650-nm LD deteriorated.
(When playback of a DVD is
impossible)
780-nm LD deteriorated.
(When playback of a CD is
impossible)
Disc
Disc
4IN1 MOD Assy
DVD IC (IC1201)
Video IC (IC1401)
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9 9
A
B
C
9 9
D
E
F
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