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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.
2. SERVO CIRCUIT (3) When the Capstan Motor doesn�t run,
When the Capstan Motor doesn�t run,
Does 12VA appear at the PMC01? YES Does 2.8V appear at the PMC01?
NO
Refer to �SMPS(CAPSTAN/12Volt) Trouble Shooting�.
NO YES Check the PMC01 and the Capstan Motor Ass�y. YES NO Aren�t the foil patterns and Components between IC501 Pin108 and PMC01 Pin9 short? YES NO Does the CFG signal come into the IC501 Pin9? NO YES Does the Capstan PWM signal appear at the IC501 Pin108? NO YES Aren�t the foil patterns and Components between IC501 Pin108 and PMC01 Pin9 short? Replace the IC501. Aren�t the foil patterns and component between IC501 Pin9 and PMC01 Pin1 short? Check the Capstan Motor Ass�y. Does the CFG signal appear at the PMC01 Pin1? Does the PWM signal appear at the IC501 Pin108?
3-9
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