Meat Plow writes:

On Sat, 09 Jun 2007 10:26:52 -0400, Sam Goldwasser wrote:

1ziggi1 writes:

Ok this is fine he doesn't have a clue what a Laserdisc is but this
doesn't help my problem.

True. But there was another reply that suggested the cost to repair if it
was a bad pickup, would approach the cost of a replacement LD player on eBay.
You've cleaned the lens. Reseating connectors shouldn't hurt. Checking
power supply voltages would be helpful if they are marked.

The test that needs to be done is to measure the lsaer output power with a
calibrated power meter. I don't know what the spec is but a measurement
of 1 mW or more would probably mean it's OK, a measurement of under 0.1 mW
would likely mean it's bad.

Does the laser do a calibration of sorts and look for media before the
control spins up the disc? If I recall the OP mentioned the disc didn't
move. I don't recall if the OP mentioned anything about the sled having
movement or if the device made any noise or otherwise just sat there and
did nothing.

From private email, it does try to focus but does not spin the LD or CD.

I see that someone on the LD newsgroup commented that these pickups rarely
go bad. As usual, a service manual and a quick check of some test points
would probably narrow it down.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

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