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I received a good service manual, with good resolution. Improve the instructions for the purchase because they are not well understood.
For the rest, so good.
Thanks Angel.
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Very good documentation for the Grundig 2077 model (as well as similar 800/900/1000 series radios). The first two pages are a summary of reception specifications and output capability. The third page is the tuner dial indicator and dial cord routing diagram. the final ~5 pages are the schematics for the various models (including 2077). The scan quality of the schematics are good, adn can be easily read if zoomed in. The documents are in German, not English as stated. It would have been nice to have the tuning sequence and settings, and some trouble shooting materials... or component and wiring map.
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Perfect like it was descriped, Perfect like it was descriped
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Very good detail, all pages clear, exactly what I needed
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Excellent service, and just what I needed to service my TU-7700. All pages of the manual are clear and easily readable.
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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