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The manual is well organized and is easy to read. The chapters are following normal way to proceed.
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.
Very useful service manual, was exactly what i needed.Good quality,reasonable price.Thank you.
Acurate informations inside the SM and I could repair my old Sansui SC-3330 without any problems. Thanks.
I used it to repair a NAD 7030, but unfortunately, the 7045 is different !
But documentation was useful.
SECTION 3 ADJUSTMENTS
3-2. ELECTRICAL ADJUSTMENTS
â¢ Standard Level
Input signal level Output signal level MIC EAR (EARPHONE) â 60dBs 1.6kâ¦, â22,4dBs
3-1. MECHANICAL ADJUSTMENTS
PRECAUTION 1. Clean the following parts with a denatured alcohol-moistened swab : record/playback/erase head pinch roller rubber belts capstan 2. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 6. Power supply voltage : 3V DC. Torque Measurement
Mode Forward /Reverse Torque Meter CQ-102C Meter Reading 1.97 to 3.92 mN â¢ m (20 to 40 g â¢ cm) (0.28 to 0.55 ozâ¢ inch) 0.05 to 0.49 mN â¢ m (0.5 to 5.0 g â¢ cm) (0.007 to 0.07 ozâ¢ inch) more than 4.90 mN â¢ m (50 g â¢ cm) (0.7 ozâ¢ inch)
â¢ Test Tape
Type WS-48A Signal 3kHz, 0dB Used for tape speed adjustment
0dB=0.775V Setting : VOL Control (RV301) : mechanical mid REC TIME (S903) : normal(4.8cm/s) SPEED CONTROL (RV901): normal (center click) DPC(MANUAL) Adjustment Note: Adjust before the tape speed adjustment Setting : DPC(S904) switch : MANUAL Tape speed Mode Procedure : [MAIN BOARD](SIDE B)
C407 C413 C412 8 R401 L401 C402 C403
: 4.8cm/s : PLAY
Forward Fast Forward and Rewind
TP82 TP47 TP51
R404 R403 C410
Tape Tension Measurement
Mode Forward Tension Meter CQ-403A Meter Reading more than 50g ( 1.77oz)
R407 24 C401 TP63 25 20
R406 R402 15 13 12 10 5
frequency counter TP47
R405 C416 R416 R417 C422 C420
30 35 45 48
TP46 37 40 R409
1. Connect the freguency counter to TP47 and TP8(GND). 2. Adjust RV401 so that the freguency at TP47 becomes 220 Hz. Standard value : 117 to 223 Hz Adjustment Location : Main board (See page 7)