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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.
5. DC BALANCE CHECK (FM) Requirement Measuring equipment: Digital multi-meter Test point: TP2, 3 (1) Adjust the reception frequency of the main unit to 98.0MHz. (2) Check that the test point voltage difference between TP2 and TP3 is 0mV±500mV.
TP GND
DIGITAL MULTIMETER V
<LW / MW ADJUSTMENT> For LW / MW adjustment, do wiring and connection as in the following.
60cm
Standerd Signal Generaor
SET TP Lch Rch GND
Connect to the respective measuring equipment
6. IF ADJUSTMENT (MW) Requirement Measuring equipment: Oscilloscope or Millivoltmeter Test point: TP8(Lch), TP9(Rch), GND Adjustment point: L802 (1) Adjust the setting of Standard Signal Generator (hereinafter S.S.G.) to 999kHz of 30% variation. (2) Adjust the receiving frequency of the main unit at 999kHz. (3) While looking at the waveform on the oscilloscope, reduce the output level all the way (till a certain degree of is monitored through the oscilloscope). (4) Adjust L802 until the waveform of the oscilloscope reaches the maximum. 7. TRACKING ADJUSTMENT (MW) Requirement Measuring equipment: Millivoltmeter Test point: TP8(Lch), TP9(Rch), GND Adjustment point: L952, L953 (1) Adjust the S.S.G. setting to 999kHz of 30% variation and reduce the output level all the way (till a certain degree of is monitored through the oscilloscope). (2) Adjust the reception frequency of the main unit to 999kHz. (3) Adjust L952 until the value of the millivoltmeter reaches the maximum. (4) Adjust the S.S.G. setting to 603kHz of 30% variation and reduce the output level all the way (till a certain degree of is monitored through the oscilloscope). (5) Adjust the reception frequency of the main unit to 603kHz. (6) Adjust L953 until the value of the milivoltmeter reaches the maximum. (7) Repeat the adjustment 2 or 3 times from step 1 to 6 above.
OSCILLOSCOPE
CH1
CH2
GND
Lch Rch GND
AC MILLIVOLTMETER
TP8
GND
CH1
CH2
GND
TP9
� 44 �
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