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Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this tuner.
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I have this hi-fi system for a long time and I need to repair some things. Founding this manual will be very helpfull :)
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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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Very fast service, best quality of the service manual and the schematics
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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
KX-FLB851
7.12.2. PAPER SENSOR
This Switch detects whether there are recording papers in the paper tray #1 or not. When there are recording papers in the tray, the input signal of IC600-N16pin becomes low level. When there no recording papers in the tray, the input signal of IC600-N16pin becomes high level.
Paper exist No papers
Signal (IC600-N16pin) Low level High level
7.12.3. PICKUP SENSOR
This Switch detects whether a recording paper is picked up or not. When there is a recording paper at the position of the switch, the input signal of IC604-96pin becomes low level. When there is no recording paper at the position of the switch, the input signal of IC604-96pin becomes high level.
A paper exists No papers
Signal (IC604-96pin) Low level High level
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