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got exactly what i ordered in a very timely manner. will use again for other manuals
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I'm happy. Good quality. Very helped me with my work..............................
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This is the second Manual I have ordered from owner-manuals, I give it five stars because it is exactly what I expected given the age of the equipment. So the contents look a bit aged and the pictures a bit grainy, it fulfills my needs and I am glad I can still get hold of them.
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thank u so much for this manual that was so cheap that i thought it was a scam but i gambled anyway because it was too good of a deal to pass up and behold,the manual has everything and details of everything even the screws and im still amazed and very happy with my manual .so take my word and jump on it before they realize how cheap they selling thier manuals..thank you so much for taking time to read my thoughts
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I do not have very much to say.
The price is quite covenient, delivery was better as promised (about 12 ours, against the specified 24 hours if I remember well), and the quality of the PDF is more than acceptable.
The Service Manual of Sansui R30 itself is also satisfactory: good graphic for schematics and layouts, simple and well structured.
Giovanni Bianchi
3-4-2. Normal Audio System Adjustment � Make adjustment in the SP mode, unless otherwise specified. Use a normal VHS cassette for an adjustment tape. � Set AUDIO MONITOR to normal. [Adjustment Sequence] 1. 2. 3. 4. ACE Head Adjustment E-E Output Level Check Frequency Responce Check Overall Level Characteristic and Distortion Factor Check 5. Overall S/N Check 1. ACE Head Adjustment Refer to the service manual of VHS MECHANICAL ADJUSTMENT VI. 2. E-E Output Level Check Purpose: Confirm that the output level against the reference input is within the specification. Mode Signal Measurement point Measurement equipment Specified value E-E L, R: 400 Hz, �7.5 dBs Audio output terminal Audio level meter �7.5 ± 2 dBs
4. Overall Level Characteristic and Distortion Factor Check Purpose: Check the record level, play level, and distortion factor against the reference input. Mode Signal Measurement point Measurement equipment Specified value REC and PB (SP mode) 400 Hz, �7.5 dBs Audio output terminal Audio level meter and distortion factor meter Playback level: �7.5 ± 4 dBs Distortion factor: 4% or less
3-6.
PARTS ARRANGEMENT DIAGRAM FOR ADJUSTMENTS
MA-325 BOARD (Side A)
CN501
1 CN341
4
2 1
CT401
Confirmation Method: 1) Supply an audio signal of 400 Hz, �7.5 dBs simultaneously to both L and R channels of Audio Line Input. 2) Make recording 3) Play back a recorded portion. 4) Confirm that a playback level is �7.5 ± 4 dBs. 5) Confirm that a distortion factor is within 4%. 5. Overall S/N Check Purpose: Confirm that the S/N is within the specification. Mode Signal Measurement point Measurement equipment Specified value REC and PB (SP mode) Short Audio output terminal Audio noise meter �46.0 dBs or less
JS161
Confirmation Method: 1) Simultaneously input a signal of 400 Hz, �7.5 dBs to both L and R channels of Audio Line Input. 2) Confirm that the audio output level is �7.5 ± 2 dBs. 3. Frequency Responce Check Purpose: Confirm that the frequency characteristic is within the specification. Mode Signal Measurement point Measurement equipment Specified value REC and PB (SP mode) 400 Hz, �30.0 dBs 7 kHz, �30.0 dBs Audio output terminal Audio level meter 1 ± 4 dB
Confirmation Method: 1) Connect both L and R channels of audio line input to the GND. 2) Start recording. 3) Play the recorded part to confirm that the noise is below �46.0 dBs.
SR-718 BOARD (Side A)
3-5.
3-5-1.
VIDEO SYSTEM ADJUSTMENT
RV201 6V ADJ
Tape path adjustment must have been completed. Confirmation Method: 1) Supply a signal of 400 Hz, �30.0 dBs to both L and R channels of Audio Line Input. 2) Connect the audio level meter to the Audio Line Output. 3) Adjust the attenuator so that the audio level meter will indicate �30.0 dBs. 4) Make recording in the SP mode. 5) Set an audio line input signal to 7 kHz and make recording. 6) Playback a recorded portion, and measure output levels at 400 Hz and 7 kHz. 7) Confirm that the 7 kHz playback output level within a range of the 400 Hz playback output level 1 ± 4 dB.
VCO Oscillation Frequency Adjustment (MA-325 Board) Purpose: Adjust to set the character position on the screen. Mode Signal Measurement point Measurement equipment Adjusting Element Specified value E-E Color bar Pin @§ of IC401 Oscilloscope (DC mode) CT401 2.75 ± 0.05 V
1
CN201 9
VDD = 5.0V 1H
2.75±0.05V GND = 0V
Fig. 7-3-6.
7-5
7-6 E
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