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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.
Item 1 2 3
Kind Dark spots Bright spot Flickering
spots
Area A No more than 4 No more than 1 No more than 1
Area B No more than 10 No more than 3 No more than 3
Remark Total number of defective points in A and B shall not exceed 14. The distance between two defective points shall not be shorter than 10mm.
Method of Debugging
For Models PS-42D8 and PH-50D8, the debugging part lies only in the white balance adjustment. Nothing else should be adjusted and the maintenance software supplied for after-sale purpose has normally shielded the value of white balance i.e., no more adjustment is needed when upgrading the software. In case of special circumstances where the main board is replaced following method can be adopted: 1). The white balance adjustment is made respectively in three ways - TV/AV�VGA�YpbPr. First adjust TV/AV, then VGA and YpbPr at the last 2). Select corresponding channels respectively. After successively press the keys on the production plant�s remote control (the key at the right hand lower corner doesn�t show up), go on to press the left key, right key, confirmation key on the small keyboard one by one and then it�s possible to enter the menu set up in the plant. 3). Use the right key to select and calibrate the menu. The white balance adjustment and YpbPr white balance adjustment are for the purpose of white balance adjustment. For the white balance adjustment of TV/AV and VGA it�s OK just directly adjust the first item whereas for YpbPr adjust the second item. 4) For the white balance adjustment of TV/AV and VGA: select the item of �white balance adjustment� from the menu. When it�s entered (as shown in the fig. Below), keep RCUI immovable and adjust GCUT and BCUT so as to adjust the white balance of the dark area. For the adjustment of white balance of the bright area, keep RGR immovable and then adjust GGRV and BGRV. Repeat the above steps several times until the picture is normal in white balance. For the white balance adjustment of YpbPr: select the item of �white balance adjustment� from the menu. When it�s entered (as shown in the fig. Below), adjust RCUT�BCUT and it�s done.
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