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Good quality, the manual help me to repair the echo/reverb section
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A good service manual with lots of info and a very fair price
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Great value, good scan, just as expected, everything that you need.
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Good scan, great price, but almost the same with the SV260 service manual.
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This PDF is very comprehensive. It includes drawings, parts lists, schematics, pictures, PCB drawings, mechanical layouts, etc. for all three stackable equipment. The scans are good too. Easy to read and no smudges or black lines. I have no complaints. I will make this site my first stop for finding my service manuals.
2. SYSTEM/KEY CIRCUIT (1) AUTO STOP
Auto Stop YES Does the SW25 waveform appear at the IC501 Pin105? YES Do the T-UP Reel Pulses appear at the IC501 Pin49? YES Replace the IC501. NO Do T/UP Reel Pulses appear at the Q514 Base terminal ? YES Replace the T/UP Reel Sensor (RS501). NO Does 5.2V appear at the RS501? YES NO NO Check the Drum Motor signal.
Check the Power Circuit.
(2) The unstable loading of a Cassette tape
The unstable loading of a Cassette tape YES Is 12V applied to the PMC01 Pin8? YES Does the �H� signal appear at the IC501 Pin30 during inserting the CST ? YES Does the �L� signal appear at the IC501 Pin72 during inserting the CST? NO YES Check the Deck Mechanism. Check the IC501 Pins68, 69, 70, 71. Check the CST SW and the peripheral circuitry. NO Is 5.3V applied to the R544 ? YES NO NO Check the Power.
Refer to SMPS 5.3VA troubleshooting.
Caution : Auto stop can occur because Grease or Oil is dried up
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