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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.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
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ELECTRICAL ADJUSTMENT
1. AM IF Adjustment Setting : � Test point : TP1, 2(IN), TP8, 9(OUT) T2 . . . . . . . . . . . . . . . . . . . . . 450 kHz 2. FM IF Adjustment Setting : � Test point : TP2, 3(IN), TP8, 9(OUT) IT1 . . . . . . . . . . . . . . . . . . . . 10.7 MHz 3. AM FREQ, RANGE Adjustment Setting : � Test point : L1(IN), TP6, 7, 8, 9(OUT) L4 . . . . . . . . . . . . . . . . . . . . . 515 kHz TC4 <U> . . . . . . . . . . . . . . . 1750 kHz TC4 <LH> . . . . . . . . . . . . . . 1635 kHz 4. AM Tracking Adjustment Setting : � Test point : L1(IN), TP6, 7(OUT) L1 . . . . . . . . . . . . . . . . . . . . . 600 kHz TC1 <U> . . . . . . . . . . . . . . . 1500 kHz TC1 <LH> . . . . . . . . . . . . . . 1400 kHz 5. FM FREQ, RANGE Adjustment Setting : � Test point : TP4, 5(IN), TP6, 7, 8, 9(OUT) L3 . . . . . . . . . . . . . . . . . . . . 87.0 MHz TC3 . . . . . . . . . . . . . . . . . . . 109 MHz 6. FM Tracking Adjustment Setting : � Test point : TP4, 5(IN), TP6, 7(OUT) TC2 . . . . . . . . . . . . . . . . . . . 106 MHz
PRACTICAL SERVICE FIGURE
<AM SECTION> Sensitivity (S/N 10dB) S/N (Input 60dB) Distortion <U> Distortion <LH> Less than 50 dB (600 kHz) Less than 46 dB (1000/1400 kHz) Less than 21 dB (600 kHz) Less than 24 dB (1000/1400kHz) Less than 3 % (1000 kHz) Less than 5 % (1000 kHz)
Intermediate frequency 450kHz <FM SECTION> Sensitivity (3% dist.) S/N (at 60dB) <U> S/N (at 60dB) <LH> Distortion (at 60dB) Less than 20 dB (88/98/108 MHz) Less than 45 dB (98 MHz) Less than 50 dB (98 MHz) Less than 3% (98MHz)
Intermediate frequency 10.7MHz
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