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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.
SECTION 5 MECHANICAL ADJUSTMENTS
PRECAUTION 1. Clean the following parts with a denatured-alcohol-moistened swab: record/playback heads pinch rollers erase head rubber belts capstan idlers 2. Demagnetize the record/playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. � Torque Measurement � Tape Tension Measurement � Torque Measurement
Mode Forward Forward Back Tension Reverse Reverse Back Tension FF, REW CQ-201B Torque Meter CQ-102C Meter Reading 36 to 61g�cm (0.50 � 0.84 oz�inch) CQ-102C CQ-102RC CQ-102RC 2 to 6g�cm (0.026 � 0.082 oz�inch) 36 to 61g�cm (0.50 � 0.84 oz�inch) 2 to 6g�cm (0.026 � 0.082 oz�inch) 61 to 143g�cm (0.85 � 1.98 oz�inch)
SECTION 6 ELECTRICAL ADJUSTMENTS
TAPE DECK SECTION
0 dB=0.775 V
1. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the parts adjust. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 6. The adjustments should be performed for both L-CH and Rch. 7. Switches and controls should be set as follows unless otherwise specified. 8. Set to test mode. (Press key switch same time
[SPECTRUM ANALYZER] [ENTER] and [EFFECT] button.) � Test Tape
Tape P-4-A100 WS-48B P-4-L300 Signal 10 kHz, �10 dB 3 kHz, 0 dB 315 Hz, 0 dB Used for Azimuth Adjustment Tape Speed Adjustment Level Adjustment
Record/ Playback Head Azimuth Adjustment
� Tape Tension Measurement
Mode Forward Reverse Tension Meter CQ-403A CQ-403R Meter Reading more than 100 g (3.52 oz) more than 100 g (3.52 oz)
DECK A
Procedure:
DECK B
Note: Perform this adjustments for both decks
test tape P-4-A100 (10 kHz, �10 dB)
main board CN207 Pin 3 (L-CH) Pin 1 (R-CH) level meter set main board CN207 Pin 2 + �
� 17 �
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