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There are currently no product reviews.
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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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Very fast service, best quality of the service manual and the schematics
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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
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Hi, this is a very clear manual, nice copy, not quite up to the standard of the very best available but better than many others. I think the price was especially fair for a hard to find manual and I would certainly use this manual seller again. Recommended.
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This schema available for me in good condition. I would highly recommend.
ADJUSTMENTS
No
ITEMS
SPECIFIED VALUES, CONDITIONS TEST CONDITIONS, REFERENCES CONNEC STANDARD VALUES RELIABILITY LIMITS TION
> 130g Loading > 130g
6 7
Clamping Force Mechanical Noise
Eject -Test should be performed in no reverberation If anything is not < 75dB(A) error, shall not room at the noise level of less than 20dB(A). Play < 40dB(A) -Test should be performed at the 50cm in front defined. Access < 70dB(A) of the unit. -IHF-A MODE (RMS-FAST)(TCD-792D)
>1.0g/10Hz-20Hz, Z way >2.0g/30Hz-200Hz, Z way >0.6g/10Hz-20Hz, X&Yway >1.2g/30Hz-200Hz, X&Yway X=side to side Y=front to back Z=up to down
8
Anti-Vibrational Performance
-The G level should be upped to the sound skip level from the less level slowly at the Z way only 10Hz-20Hz:0.7g frequency. 30Hz-200Hz:1.2g -Ignore the sound skip at the near of resonance frequency(about 100Hz). -In playing YEDS-10 Tr #5, shall perform with vibration -No sound skipping. -No sound skipping in the specified range. equal with -The sound skipping does not include any standard values interpolating noise.
9
Playability
-Interruption:0.7mm -Block Dot Disc:0.8mm -Scratch Disc:1mm -Finger Print Disc:65um
10 Disc Deflection
+ 0.4mm
+ 0.4mm
-No sound skipping at the ABEX 731RA Tr No8 -The sound skipping does not include any interpolating noise. -Except from specified item due to the reliability limits of TEST DISC in the HTO TEST. -No sound skipping at the ABEX 713 Tr No8 -The sound skipping does not include any interpolating noise. -Except from specified item due to the reliability limits of TEST DISC in the HTO TEST.
11
Disc Eccentricity
+ 0.21mm
+ 0.21mm
12 Jitter 13 14 15 Frequency Response Harmonic Distortion Dynamic Range S/N Ratio Channel
< 28 nsec 20-20kHz + 2dB < 0.03% at 1kHz > 80dB at 1kHz
< 33 nsec 20-20kHz + 3dB This measurement may be done at 20Hz, 20kHz, (1kHz=0dB) < 0.05% at 1kHz 400Hz HIGHPASS FILTER 20kHz(-60dB 24kHz) LOWPASS FILTER > 75dB at 1kHz 20kHz(-60dB 24kHz) LOWPASS FILTER, 60dB AMP IHF-A WEIGHTING FILTER > 85dB at 1kHz > 65dB at 1kHz 400Hz HIGHPASS FILTER 20kHz (-60dB 24kHz)LOWPASS FILTER 10
16 17
> 85dB at 1kHz > 70dB at 1kHz
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