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This manual was the factory original. Excellent value and contained all the details I needed. Easy dowwnload provided the information when I needed it.
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Impeccable, document très complet. Perfect, i get all i need. All schematic are correct. Thanks
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The manual is of better quality compared to other. I found it less expensive and therefore it it is the best buy cost vs quality.
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I bought the service-manual of the sony ICB-1020(an old transmitter-receiver) at "www.Owners-Manual.com", I found the service-manual for a fairly cheap price(in comparison with other sellers). I filled in some questions, payed the order with Ideal, and within 24 hours I had my service manual. I was very happy:In no time I had my service-manual and everything, but literally everything was noted down in the manual; the electronic scheme, the parts list, etcetera.
A very practical, reference-document.
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This comprehesive service maual was greatly appreciated, as was the digital download.
RDA-7.1 ADJUSTMENT PROCEDURE-1
BIAS & DC Offset Adjustment
1. Connect the assembled channel to the power transformer. 2. Connect the power cord into an AC wall outlet. 3. Turn ON the unit. After about 3 seconds the two green LED's should turn ON. Measure the following voltages and make sure they are within the specifications. C7 (+) : 70 V +/- 3 V C9 (-) : -70 V +/- 3 V L1 : 0 V +/- 0.1 V 4. Connect the DC voltmeter to the test points TP1 (-) and TP2 (+) and adjust the voltage to 4 mV using the R46 BIAS adjustment trimming resistor. 5. Allow the channel to warm up for 30 minutes, adjusting the bias currents every 10 minutes. 6. Measure the output DC voltage and adjust it as close to zero as possible using the R24 trimming resistor.
Main Chassis Check
1. 2. 3. 4. 5. 6. 7. Assemble the chassis / power supply. Connect the power cord into an AC wall outlet. Turn ON the unit. The blue ON LED should come ON. Turn OFF the unit and plug a remote control plug into the Remote IN jack. Turn ON the unit. The Red Standby LED should be ON. Apply 12V to the remote control plug. The unit should turn ON, the blue LED should be ON. Measure the secondary voltages on all power cables going to the channels. Each secondary should read 50 VAC +/- 2 VAC.
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