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There are currently no product reviews.
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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.).
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The Service Manual for the Kenwood KR-V55R provided by owner-manuals.com was as described/advertised. The contents provided the necessary information to effect a diagnosis of the unit. The schematics above all else was instrumental in tracing the the signal flow from component to component.
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This manual was the factory original. Excellent value and contained all the details I needed. Easy dowwnload provided the information when I needed it.
AV DOES NOT OPERATE
CHECK THE VOLTAGE TV:2.5V VIDEO:1.1V #2 SIF
VIDEO BUFFER SWITCHING Q205
D204
CHECK THE VIDEO WAVEFORM EXT VIDEO IN #42 1701 #33 TV/VIDEO TV:L VIDEO:H #1F AGC CHECK THE VOLTAGE TV:2.5V VIDEO:0.5V VIDEO BUFFER Q204
CHECK THE VOLTAGE TV:6.3V VIDEO:3.4V EXT VIDEO IN
EXT AUDIO IN #1 CHECK THE AUDIO WAVEFORM
EXT AUDIO IN
I 501 M52339SP
NO VERTICAL SCAN (ONE HORIZONTAL LINE RASTER)
CHECK THE WAVEFORM OF PIN #18 OF I501 OK
NG
CHECK/REPLACE I501
CHECK THE VOLTAGE OF PIN 8, 13 OF I301 OK
NG
DISCONNECT D410 AND MEASURE THE VOLTAGE OK
NG
CHECK/REPLACE R413
CHECK THE WAVEFORM OF PIN 12 OF I301 OK
NG
REPLACE I301
CHECK THE CONNECTION OF P401 OK
CHECK/REPLACE D.Y
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