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Pioneer Laseractive CLD-A100

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  • m4a2t0t
    Badcaps Veteran
    • Mar 2013
    • 239
    • USA

    Pioneer Laseractive CLD-A100

    The disc spindle motor will not spin on this unit. The motor has 2.5v on both sides and does not change.

    I have a second unit that works 100% that needed a recap. I tried the PSU before and after the recap. No change. I swapped the video board that has all of the ICs on it and it still wont spin. I injected 2.5v into CN2 (the motor connector) and the motor spun.

    The pickup assembly moves back and forth. The laser appears to light up, although it doesn't look like any newer laser diode with a well defined dot in the center. I can see red light refracting off the lens and then goes away after a few seconds.

    Is there some sensor im missing that tells the unit to start the motor? There are 2 sensors on page SCH-3 but I though they were just for the carriage motor. One looks like a photodiode assembly and another is the park switches.

    Thanks for any help


    I've been looking over the schematics and found some more info in the service manual. It says IC201 pin 52 is the "Spindle motor ON/OFF control signal output pin ON(RUN):H OFF(STOP):L"

    The RUN line connects to PIN11 of IC606 (Spindle Servo IC). Pin11 is 0.01v. What signals do I need for this to turn on?
    Attached Files
    Last edited by m4a2t0t; 09-11-2023, 10:19 PM. Reason: more info
  • m4a2t0t
    Badcaps Veteran
    • Mar 2013
    • 239
    • USA

    Re: Pioneer Laseractive CLD-A100

    I dunno if anyone can help but heres some more info

    First number = PIN#, Second is value from working unit, Third is broken unit. If the third number has multiple values it is initial reading, tray open, tray closed. If theres no second number then the values were the same.

    IC201 was in a 64 pin eeprom holder so it was easy to swap. No change. Swapped laser as well. No change.

    IC201 MECHA CONTROL IC (page 108 service manual)
    64 5v
    63 4.9v
    62 5.01v 5v RF correction switching signal output pin Gain up:H Increases gain (#8000 to #8100) within the CAV
    61 5v Slider position detect switch input pin (PARK OUT)
    60 0.015v .012v Slider position detect switch input pin (PARK IN)
    59 .02v
    58 5.03v
    57 5v
    56 5v
    55 5v 0.2v Spindle drive circuit power save mode control output pin with IC606. (PA4016) Power save mode: H , Normal: L
    54 .051v 5-.05-5 Laser diode ON/OFF switching signal output OFF:H ON:L
    53 4.91v
    52 5v .02v Spindle motor ON/OFF control signal output pin ON(RUN):H OFF{STOP):L
    51 5v .02v TBC control signal output pin During multi-track jump:H Other:L
    50 4.98v
    49 5v .02v Video output switching signal Output pin Squelch:H Playback video:L
    48 5v
    47 3.4-3.6v .268v Serial 3 data signal output pin
    46 .10v .078v
    45 .02v
    44 2.52v
    43 2.4v
    42 5v
    41 .02v
    40 4.95v 4.25v
    39 4.13v
    38 .87v 1.2v
    37 2.77v .02v Spindle motor FG signal input pin 24 pulses per signal Divided into thirds and used inside the microcomputer
    36 .078v 5v Focus lock signal input pin Focus lock:L
    35 .01v 5-0 open-5v Loading/lilt position detection switch input pin
    34 5v 0-5 open-0 tray down Loading/lilt position detection switch input pin
    33 .01v 5-0 open-5v Loading/lilt position detection switch input pin
    32 .016v
    31 2.438v
    30 2.15v
    29 2.2v
    28 4.97v
    27 .016v
    26 4.95v 4.2v
    25 4.6-4.7v 4.8-4.9v
    24 5v
    23 .06v .009v
    22 .078v
    21 4.98v
    20 4.9v
    19 4.1-4.2v
    18 2.87v 2.51v
    17 5v
    16 5v
    15 4.85v .026v EFM decoder IC:CXD2500BQ subcode input pin Reads the subcodes of SCK2 and the signal.
    14 5v .01v CD(EFM signal) frame lock signal input pin Connected to pin 12 of the EFM decoder IC:CXD2S00BQ. Lock:H Unlock:L GFS is an abbreviation for Good Frame Sync.
    13 .04v 5v Tracking operation control signal output pin. The signal backups ON/OFF of the tracking servo operation. OFF:H ON:L
    12 2.51v
    11 4.97v
    10 .06v
    9 2.88v 2.15v
    8 2.01-2.2v 2.55v
    7 3.05v 1.83v RF detection signal input pin (analog signal) Inputs the A\D conversion of the RF detection output and is used in the spindle luff servomechanism. Voltage and frequency are proportional
    6 5v
    5 5v
    4 5v
    3 5v
    2 5v
    1 5v

    Any suggestions are appreciated


    • R_J
      Badcaps Veteran
      • Jun 2012
      • 9184
      • Canada

      Re: Pioneer Laseractive CLD-A100

      Does the spindle motor try to move at all? The spindle motor has a FG, check if you have a signal pulse coming from the PD line J46, pin6 if you spin the motor manually
      Have you compared the park switch logic and the loading motor switch logic between the two units? switches can give problems, and the software thinks some mechanism is in the wrong position to start the motor.
      Last edited by R_J; 09-12-2023, 06:21 PM.