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.
Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
Text excerpt from page 32 (click to view)
1-6. Installing the Optional Boards
Installation Procedure 1. Turn off the power and disconnect the plug from the outlet. Rear side 2. Remove the two screws from the slots and remove the blank panel or the board that is already installed. n The top slot at the rear side is used for the SDI-54A board only. So that any of the option boards cannot be installed in the top slot.
Front side 4. Remove the front panel. (Refer to Section 1-4.) 5. If any circuit board is already installed in the desired slot, remove it before hand. 6. Insert the optional front side boards into the slots, and open the levers in the direction of arrow A to lock them. n The top slot on the front is dedicated to the DPR-163 board, and the bottom slot is dedicated to the AT-141 board. So that any of the option boards cannot be installed in the top and bottom slots of the front.
Blank panel
Optional front side board
B3 x 5
B3 x 5
3. Insert the optional rear side board into the slot of the removed blank panel and fix it with the screws removed in step 2.
A Lever A Lever
B3 x 5
Optional rear side board
B3 x 5
m . Regarding the rear side, install the boards starting from the top slot, one after another. When removing the boards, start removal from the bottom slot. . Be sure to attach the supplied blank panel to the slot that is not used at the rear. 1-24 (E)
HDCU-900 IMM