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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.).
 ;
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.
3-2. CHECKING TERMINALS AND COMPONENTS: QW-1613 / 1643
10 .Capacitor / chip C1 (7103 3866) 5 .Coil LL2 (7020 5413)
C5 8 .Capacitor / tantalum
Di 18 .Diode
(7101 5609)
INV 6 .Inverter
(2895 1204)
9 .Capacitor / chip C4 (7103 2477)
(7100 7917)
10 .Capacitor / chip C2 (7103 3866)
CIL VDD VSS2 VDD VCH VC2 ELD CIL KI1 KI6 KI6 VDD VSS1 VC1 ELD KI1 CIL
VC1 VDD
2a .P.C.B. with components
KI7 N4
VSS2 VDD
VCPE ELD VDD VSS2 LD2 CIL RT1 VSS2 RT2 VSS2
VDD VDD VDD
(7240 9841) 2b .P.C.B. with components (7240 9840)
KI6 KI2 AC VDD VDD VSS3
VCH VSS2
VDD VCPE LD2 L RT1
N2 VDD N1
N3
RT2
VSS2 KI3
KI5
KI3
XT
XT
VDD
L
L
VSS2
KI5
XTB KI4
KI4 KI2 KI4 VDD VDD KI8
BD KI2
7 .Quartz oscillator Xtal (7110 6302) 12, 13, 14, 15, 16, 17 .Capacitor / chip C7 Select one from 6 parts. (7103 4871) (7103 5924) (7103 6561) (7103 6575) (7436 1434) (7436 1448) 10 .Capacitor / chip C3 (7103 3866)
R 19 .Resistor / Chip
(7103 7450)
Tr 3 .Transistor
(7101 1151)
C6 15 .Capacitor / chip
4 .Coil LL1 (7020 0503)
(7103 7443)
Top view of P.C.B. ass'y
Bottom view of P.C.B. ass'y
[N1~N4 PADS]
Never solder or desolder these pads, because they have been selected best in the production line. A new P.C.B. with components as a spare parts will be supplied with factory adjustment of these pads.
-7-
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