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The service manual is a good quality scan of the Panasonic NV-850, which is electrically identical to the Philips VR 6920, but mecanically just nearly.
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The service manual is a good quality scan of the Blaupunkt RTV-404, which is electrically and mecanically identical to the Panasonic NV-830.
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completo manual bien detallado y de buena calidad de impresion , se echa en falta los esquemas de placa y parte de algun diagrama.
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perfecto manual ,completo y detallado de muy buena calidad de impresion, ideal en una palabra.
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un manual completo con una calidad de imagen buena con explicaciones en varios idiomas de los ajustes y detalles en conjunto un OK.
A
Set the handset in the NG test mode 3, check whether deviation of the TX data is app. 8 kHz Dev.
Check whether there is a NG 250 Hz data waveform at �MOD� of RF unit. OK Check handset RF unit.
Check RT603, R619, R632, R634, R635, R636 and C610.
OK Set the handset in the NG test mode 6, 926.997467 MHz (250 Hz ±8 kHz Dev.) 1mV output signal from RF jack is applied. Check whether the bell ring. OK Place the handset on the base to charge about 5 seconds, then connect again. Check whether the 250 NG Hz data waveform from pin 9 of IC606 is fed. OK Check IC606, Q612 and NG their peripheral circuit. OK Check handset RF unit.
Check whether there is a NG 250 Hz data waveform at the Q601 collector. OK Check whether there is a NG 250 Hz data waveform at pin 55 of IC603. OK Check IC603 and its peripheral circuit.
Check RT602, Q601 and their peripheral circuit.
Check R696, R600, R621, R624, Q602, IC607 and their peripheral circuit.
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