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Very good reproduction (copy) of original manual. Didn't have a parts list, but schematic was completely labeled with parts. Complete instructions on how to adjust mechanical functions of the 8-track deck. Well worth having and at a very reasonable cost.
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It's a full manual. All the parts are in there. I haven't found the problem yett, but I am working on it; hope I can rebuild the part myself. To make it more secure and unbreakable this time. Because the part has failed several times before and costs a lot to let it be repaired.
Thanks so much for this rich illustrated and parted manual.
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I downloaded the document. The manual was complete, well scanned and everything was legible. I could zoom in see what I needed to know. There's not much more that you can ask.
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It was complete service manual with all needed service informations. Thanks.
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El manual esta muy detallado, los numeros de partes y los esquemas de despiece son correctísimos y muy claros, tanto para los técnicos experimentados como para los novatos.
2-2-3. Transmitter Circuit The modulator generates transmit signal with VCO and to fed the discrete switch circuit. The output signal of the discrete switch circuit is fed to the power amplifier (U402). The output signal of the power amplifier is fed to the directional coupler (U401) and then the duplexer filter (FL401). A sample of the RF output power is coupled off, and passed through the detector (CR401) and fed to the logic circuit for APC loop. The p-cont signal from the logic circuit controls power amplifier level controllers (Q403, Q405) to control the power amplifier (U402) output level. 2-2-4. Receiver Circuit The receiver is a double conversion super-heterodyne receiver, capable of receiving frequencies from 869 MHz to 894 MHz. The RX signal from duplexer filter (FL401) is amplified by LNA (Q301) with band-pass filter (FL301) and fed to the double balanced mixer (U301). The synthesizer output signal is also fed to the mixer to obtain the first IF signal (72.06 MHz). The first IF signal is fed to the second mixer through first amplifier (Q303) and x�tal filter (FL302) and then heterodyned with a fixed 72 MHz second local VCO signal obtain a 60 kHz second IF signal. The second local oscillator signal is produce by signal synthesizer (U304) and discrete VCO. After this frequency conversion, the signal second IF fed to the monolithic low-power IF system (U302) incorporating two limiting IF amplifiers quadrature detector, logarithmic signal strength indication (RSSI) and voltage regulator. The detected output signal and RSSI signal are fed to the logic circuit.
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