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This scanned manual is well done in that most all the pages except for one is straight and clear- the way I would do them. One page was upside down but that happens. For the money that is charged on this site you get a pretty good deal. Now with complex repairs, I still prefer to us paper manuals which I have to buy at stereomanuals but the one I got here was much less than the $45 he was charging but this is a larger than normal manual for three different units. I am a picky manual user because I have used original manuals from Sony and Teac.
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Very useful service manual, was exactly what i needed.Good quality,reasonable price.Thank you.
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Acurate informations inside the SM and I could repair my old Sansui SC-3330 without any problems. Thanks.
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I used it to repair a NAD 7030, but unfortunately, the 7045 is different !
But documentation was useful.
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Content A4 and A3 format pages. Exactly what I needed to restore my old receiver.
ELECTRICAL ADJUSTMENTS
2-6: FOCUS 1. Receive a 70dB monoscope pattern. 2. Turn the Focus Volume fully counterclockwise once. 3. Adjust the Focus Volume until picture is distinct. 2-7: HORIZONTAL POSITION 1. Receive the monoscope pattern from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (08) on the remote control to select "H POSI (50)". 4. Press the VOL. +/- button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 5. Receive the monoscope pattern of NTSC. (Audio Video Input) 6. Using the remote control, set the brightness and contrast to normal position. 7. Activate the adjustment mode display of Fig. 1-1 and press the channel button (39) on the remote control to select "H POSI (60)". 8. Press the VOL. +/- button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 2-8: VERTICAL SIZE 1. Receive the monoscope pattern from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (11) on the remote control to select "V SIZE (50)". 4. Adjust by using the VOL. +/- button on the remote control so that the Up/Down OVER SCAN Quantity becomes equal to the Right/Left OVER SCAN Quantity. 5. Receive a broadcast and check if the picture is normal. 6. Receive the monoscope pattern of NTSC. (Audio Video Input) 7. Using the remote control, set the brightness and contrast to normal position. 8. Activate the adjustment mode display of Fig. 1-1 and press the channel button (12) on the remote control to select "V SIZE (60)". 9. Adjust by using the VOL. +/- button on the remote control so that the Up/Down OVER SCAN Quantity becomes equal to the Right/Left OVER SCAN Quantity. 2-9: VERTICAL POSITION/VERTICAL LINEARITY 1. Receive the monoscope pattern from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Adjust the VR401 until the horizontal line becomes fit to the notch of the shadow mask. 4. Adjust the VR420 until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum.
100%
2-10: BRIGHT CENT 1. Receive the PAL black pattern*. (RF Input) 2. Using the remote control, set the brightness and contrast to normal position. 3. Place the set with Aging Test for more than 15 minutes. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (17) on the remote control to select "BRIGHT CENT". 5. Press the VOL. +/- button on the remote control until the screen begin to shine. 6 Receive the PAL black pattern*. (Audio Video Input) 7. Set to the AV mode. Then perform the above adjustments 2~5. *The Black Pattern means the whole black raster signal. Select the "RASTER" of the pattern generator, set to the OFF position for each R, G and B. 2-11: CONTRAST CENT 1. Activate the adjustment mode display of Fig. 1-1 and press the channel button (22) on the remote control to select "CONTRAST CENT". 2. Press the VOL. +/- button on the remote control until the contrast step No. becomes "35". 3. Receive a broadcast and check if the picture is normal. 4. Set to the AV mode. Then perform the above adjustments 1~3. 2-12: COLOR CENT 1. Receive the PAL color bar pattern. (RF Input) 2. Using the remote control, set the brightness, contrast and color to normal position. 3. Connect the oscilloscope to TP023. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (25) on the remote control to select "COLOR CENT". 5. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 5 scales on the screen of the oscilloscope. 6. Press the VOL. +/- button on the remote control until the red color level is adjusted to 100 ± 10% of the white level. (Refer to Fig. 2-1) 7. Receive the PAL color bar pattern. (Audio Video Input) 8. Set to the AV mode. Then perform the above adjustments 2~6.
Fig. 2-1
D-2
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