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Post #316102

Author
reave
Parent topic
Difference in quality of laserdisc players
Link to post in topic
https://originaltrilogy.com/post/id/316102/action/topic#316102
Date created
17-Apr-2008, 11:11 AM
Moth3r said:

Reave, the LD-V4400 is an industrial player that looks similar to the LD-V8000 that Laserman recommended (NTSC-only, single side play, BNC connector).

So, together with a decent comb filter, I would expect it to be capable of good results (but bear in mind I'm no expert, so I'd advise getting a second opinion before purchasing).



Do you mean it looks similar in the sense that it has similar specs? The only info I can find about the player is that it has a rock-solid spindle motor, and these specs:

Video Signal
Output Level - 1volt p-p ±10% (75 ohms terminated)
Horizontal Resolution - 425 lines
Signal to Noise Ratio - 50 dB (unweighted EIAJ)

Video Output - (1) RCA jack (75 ohms terminated), BNC composite sync/loop thru

Audio Output (1-set) RCA jacks (auto digital) (2-sets) RCA jacks (auto digital) (1-set) RCA jacks (auto digital)
Digital RS-232C Serial I/F, D-sub 15pin,1.2k/2.4k/4.8k/9.6k (bps)

Pick Up Mechanism - 780 nono-meter Laser Diode

DIGITAL AUDIO (LD & CD)
Output Level -200mVolts ±15%; 1kHz at -20dB
Frequency Response - 4Hz - 20kHz ± 0.5dB
Signal to Noise Ratio - better than 102 dB


Obviously I know what the different outputs are, but the video signal numbers mean nothing to me. Can somebody translate?

Here is the info I could find about the highly regarded LD-V8000, if that helps:

Video output

Level 1 Vp-p nominal, sync negative
Impedance terminated 75 ohm unbalanced
Terminal Pin jack

Audio Output
AUTO/DIGITAL 2 channels (1/L, 2/R)
ANALOG ONLY 2 channels (3/L, 4/R)
Level 500 mV nominal (1 kHz 100% modulation,
50 k-ohm terminated)
Terminal Two RCA jacks
External Sync
Composite Sync
Level MIN: +2 -2 V, MAX: +2 -4 V
Impedance 75-ohm
Terminal
Input BNC jack (2)
Output BNC jack (1)


I already own the unit, I picked it up at a garage sale on a whim because it was mint in a sealed box, and only $20. But if it's not going to put out a preservation-worthy picture, I'll sell it and find a LD-V8000.

Also, about the comb filter. If that is not something that is on board the LD player, do I buy a comb filter unit, or is that a software thing? Excuse my ignorance in this matter :), and thanks for your help!