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Very good quality scan of the document. I am very pleased with what I got.
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PDF Contains
Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
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very good manual with clear electrical schemes. Very helpful to find wat was wrong inside my microwave.
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Hi, thankyou for providing the Nordmende Globetrotter original manufacturer's repair manual. Quality is very good and sharp - the PDF file was comfortably small to download. The only question is: why did it take so long to become ready for download?? Many thanks anyway, I fixed the fault in the radio thanks to the circuit.
regards: Nick
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This was super service.Ordered this manual and was reading the download an hour later
GA-200 SERVICE NOTES
Figure 24 (lower part of diagram) shows the parabolic voltage at line frequency on terminals of C617 (do not confuse with E/W modulation which operates at 100Hz) which, as can be seen in figure 25, is modulated at vertical frequency, due to the modulation brought about by the E/W. The parabolic form of the signal (31 KHz) allows for controlling the gate of transistor Q612, so that when the signal reaches the highest point, it saturates Q609, which cuts out Q612. Control of the gate is achieved by means of Q609 and the
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divider formed by R631 and R630. Figure 25 shows the same signals in vertical frequency, where the attack on the gate of Q612 can be observed.
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R
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Figure 24
Figure 25
In this circuit, a safeguard (Q614) has been incorporated to protect against overvoltage peaks in the Source of Q612 when turning the television set on.
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