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There are currently no product reviews.
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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.
LC-121M2U LC-150M2U 5-6-2. AV input Adjustment
1 Adjustment Brightness adjustment (N358) Adjustment conditions 1. Input the standard color bar signal (the same pattern as that of JPN-8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output).
LC-121M2U LC-150M2U
Adjustment method 1. Adjust N358 BRIGHTNESS, and adjust the black level of G output so as to get DC 1.5±0.05V.
2
R-cut off adjustment
1. Input the standard color bar signal (the same pattern as that of JPN-8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output). 3. Connect the oscilloscope to TP819 (IC803, pin1, R output). 1. Input the standard color bar signal (the same pattern as that of JPN-8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output). 3. Connect the oscilloscope to TP820 (IC803, pin8, B output). 1. Input the standard color bar signal (the same pattern as that of JPN8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output).
1. Adjust R CUTOFF so as to equalize the black levels of green and red.
3
B-cut off adjustment
1. Adjust B CUTOFF so as to equalize the black levels of green and blue.
4
Unicolor adjustment (N358)
1. Adjust N358UNICOLOR, and adjust so as to get 100% whiteblack level video component equal to 2.3±0.05Vp-p.
5
R DRIVE adjustment
1. Input the standard color bar signal (the same pattern as that of JPN8CH) of N358 into AV1. 2. Connect CH1 of oscilloscope to TP821 (G output). 3. Connect CH2 of oscilloscope to TP819 (R output).
1. Adjust so as to get 100% white level identical with that of green.
12
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