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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
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Happy to find finally a schematic for this amplifier. The schematic is of good quality, the pcb layout is useless: all is black. Never the less, it is very easy to find the components on the board using the schematics.
[Adjustment Method] 1) Short-circuit between pin 5 (AV ADJ) and 3 (GND) of CN261 for about 1 second to activate the RF switching position adjustment mode. 2) Check that �AF� is indicated on FL display. 3) Using the program + and � buttons, adjust to 416 ± 32µsec (6.5 ± 0.5H). 4) Press the PAUSE button. 5) The set goes to the AF switching position adjustment mode.
2-4. VIDEO SYSTEM CHECKS For the video system checks, follow the checking procedures given below as a rule. The color bar video signal supplied from the pattern generator is used as the video input signal for the video system adjustment of the recording mode. Check that the signal satisfies the specified value designated in the �Check of input signal� (Fig. 6-2-2) Unless otherwise specified, set the switches to the following positions. � INPUT SELECT switch ................................................. LINE 1 � TAPE SPEED switch ............................................................ SP [Checking Sequence] 1) X�tal OSC Check 2) SYNC AGC Check 3) White clip/Dark clip Check 4) Recording Y Level Check 5) Recording Chroma Level Check 6) Playback Level Check 2-4-1. Mode X�tal OSC Check (MA-316 Board) Playback Alignment tape: SP Color bar portion Q211 Emitter Oscilloscope and Frequency counter 4,433,619 ± 96Hz
CH1
Approx. 1Vp-p Approx. 5Vp-p V Enlargement Vertical sync. signal
CH2
CH1
CH2 (CN261 PIN 2 (RF SWP)) (RP-231)
6.5 ± 0.5H (416 ± 32 µsec)
Signal Measurement point Measuring instrument Specified value
Fig. 6-2-3
6) 7) 8) 9) Check that �AH� is indicated on FL display. Using the program + and � buttons, minimize a chipped portion. At this time, confirm that a noisy sound is not heard. Press the PAUSE button. Press the EJECT button.
CH2 RF SWP (CN261 PIN 2) (RP-231)
Note: A frequency counter should be connected through a buffer amplifier (oscilloscope, etc.) having a high impedance and a low capacitance. [Check Method] 1) Check that the oscillation frequency satisfies the specified value and that the oscillation voltage is 500 ± 200mVp-p.
500 ± 200mVp-p
CH1 OK HF ADJ (CN341 PIN 1) (RP-231) NG
4,443,619 ± 96Hz
Fig. 6-2-5
Should be minimized RF signal dropout
Fig. 6-2-4
6-3
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