LaserActive:Pioneer Laseractive CLD-A100 Various Issues and Solutions
The biasing network design of the Laseractive makes it prone to major damage should one of it's voltage rails become absent. This page details various failures and fixes known for the Laseractive player to assist others in their repair efforts.
Before Diagnosing Errors
If the power supply has not had the capacitors replaced, do so as soon as possible. It is also advisable to replace the various ICP (in circuit protector) parts with fresh ones. After servicing and verifying that the voltages are proper, proceed with further troubleshooting.
No display or dim display
The most likely root cause of dim/no display is loss of the +5V rail, likely caused by a PAC with shorted voltage rails. Replace ICP's on the power supply and bench test the power supply before reapplying power.
No analog audio from Laserdisc
If the -5V rail is lost, the analog audio demodulator, IC1 (CN0002AM) on the VIDEO board will overheat and possibly fail. Service the PSU first, then if audio is still gone, the CN0002AM IC will need to be replaced.
Spindle Motor Won't Spin LD's or CD's (Belts have been replaced and no Power Supply Faults)
Replace IC611 on the VIDEO board.
Optical Pickup Emits Smoke After Player Turned on
If the either the +14 or -14V voltage rail is missing, this will cause a voltage imbalance on the focus/tracking amplifier and cause the pickup to emit smoke. Ensure that the +/- 14V rail ICP's are replaced on the Power Supply, as well as the two ICP-N10's on FTSB. .
Additionally, it is recommended to clean and reflow on FTSB: IC802, IC804 as well as the pins for J801 (the ribbon cable which connects to the power supply).
Discs spin at maximum speed, no playback
If discs will spin upon pressing play, but seem to spin at maximum speed with no playback, there is most likely an issue with the spindle motor speed sensing circuit. Ensure R111 and R110 measure 1k Ohm (+/- 5%) and that R109 is less than 1 ohm (actual value ~0.05 ohm, will show as "shorted" if checking for continuity). Additionally, check whether IC611 (4558D) on the VIDEO board is not damaged.
Close-up of Spindle Motor Current Sense Resistors on SYPS
CD's do not spin/CD's Spin but stop after several seconds
If Laserdiscs can play but CD's cannot spin, or if CD playback is possible, but stops after several seconds, one possible root cause is a missing signal between the EFM Decoder circuitry on INTF and the Mechacon on CONT. It is recommended to reflow the solder joints for the rigid right angle connectors that on the CONT board that connect to INTF.
CONT Right Angle Connector pins
Laserdiscs do not spin
This is most likely due to a worn/loose carriage motor assembly belt. Replacing the belt should provide enough tension for the motor system to clamp the laserdisc, but it is also highly recommended to replace the capacitors and ICP fuses on the power supply as well.
PAC N1/N10 crashes after several seconds
If an ICP-N50 has been added but connected to the wrong voltage rail (i.e. EVER 5V instead of SW +5V), this will cause the PAC-N1/10 to crash as well as PAC-S1/10 to run at abnormally high temperatures.
Carriage Motor/Pickup rapidly moves back and forth, cannot complete startup operation
This is most likely due to the various switches that the player uses to determine carriage position as well as pickup assembly position being out of place or shorted/missing. If the carriage assembly has been disassembled (such as for relubrication), ensure that the three rocker arms that are controlled by the large black cam gear are properly positioned. If the pickup assembly has been removed, ensure that the two rocker arms that are actuated by the pickup rail are properly positioned.
Additionally, ensure that the ribbon cable that comes from the front of the carriage assembly is properly installed to the FTSB board with no pins shorting to each other. The red line on the ribbon cable indicates "pin 1."
Cam Gear Switch Diagram
Pickup Assembly Rocker Arm Positions
