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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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1-4.Replacing the CPU
NOTE: This computer uses either one of the two types of CPU socket. The CPU locking position and the lock-release position are different depending on the types of the CPU socket.
1. Socket type 1, 2
1. Removing the CPU
1
1 Insert a flat-blade screwdriver into the notch as shown in the illustration and rotate it so that the protrusion comes to the lock release position. 2 Pull the CPU gently upward to lift it out of the CPU socket.
CPU 2
CPU socket
Lock release position (made by HIROSE)
Lock release position
2. Installing the CPU
2
1 Align the triangle reference mark of the CPU with that of the CPU socket and insert all the pins of the CPU to the corresponding holes of the CPU socket. 2 Insert a flat-blade screwdriver into the
CPU
1
notch as shown in the illustration and rotate it so that the protrusion comes to the lock position. Reference marks
CPU socket
Lock position (made by HIROSE)
Lock position
NOTE: Rotate a flat-blade screwdriver to the lock position securely. If not, the operation of the CPU may become unstable.
Confidential
1-13
PCG-FX310/FX310K/FX310P/FX340/FX340K/ PCG-FX340P/FX370/FX370K/FX370P/FX390/ PCG-FX390K/FX390P (AM)
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