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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.
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Hard to find manual was ready the next day. Scans were very legible (including schematics). All the essential parts of the service manual were present (adjustment procedure, schematics, and parts list). It would have been nice if the rest of the manual was included (disassembly procedure, theory of operation, etc.).
,,,*� ,_
Primary Current Control To measure the dark area potential (VD) for the first time after power-on, a reference current (setting stored in ROM) is sent to the primary charging assembly, and the potential sensor is used to measure the drum surface potential. The DC controller PCB compares the measurements taken of the drum surface potential and the target potential; if the drum surface potential differs from the target value, the primary charging level control signal (HVTPC) generated by the DC controller ,PCB is corrected. In this way, the corrected current is applied to the primary charging assembly by the high-voltage transformer (HVT). The subsequent measurements are made using the previously corrected value as the reference current, thereby reducing the first copy time. Such measurement and correction are repeated as many as eight times so that the dark area potential (VD) will be as close to the target value as possible. If the potential is not within the allowance after the eighth measurement, the dark area potential will be determined using the eighth correction value. Note: I I�, I I� ) tf the potential is in excess of the control range of the target value�aftec measuring the potential eight times, the,notation�l; will be indicated for �PLMT�(upper limit flag 1� �3, ((4 of the primary current value) in service mode, (*J*). #I(, �8 8, ,I
a.
,I
�,�,
Potential control may be disabled by �POCNT� (display mode; *4*). When done, the primary current value will be 1000 uA in text mode and 800 uA in photo mode.
/--A \
b. Controlling the Intensity of the Scanning Lamp To measure the light-area potential for the first time after power-on, the reference ON voltage (setting stored in ROM) is applied to the scanning lamp. In response, the scanning lamp exposes the standard white plate so that the reflected light is projected to the drum. The potential of the surface of the drum exposed to the light is measured by the potential sensor, and the data is sent to the DC controller PCB. The DC controller PCB compares the measurement and the target value; if the measurement differs from the target value, the intensity adjustment signal (LINT) generated by the DC controller is corrected. The subsequent measurements are taken using the previously corrected value as the reference voltage, thereby reducing the first copy time. The corrected voltages are applied to the scanning lamp by the lamp regulator. Such measurement and correction are repeated as many as eight times so that the light area potential (VLI) will be as close to the target value as possible. However, if the measurement does not fall within the allowance after the eighth measurement, the eighth correction value will be used to determine the intensity of the scanning lamp.
COPYRIGHT@
1997 CANON INC.
CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
4-3
 $4.99 NP6545 CANON
Parts Catalog Parts Catalog only. It's available in PDF format. Useful, if Your equipment is broken and You need t…
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