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This is an excellent information source. Great quality and tons of info regarding technical service for the Technics SH8065.
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5 stars on this manual since it is the complete version, not the half manual you find free for download all over the web. Good job.
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Thank you very much you are helping me a lot with my preferred hobby!!! this manual of an old TV is going to be very helpful!!!!
You are very honest competent great job very clear and well done!!!!
Matteo
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An excellent service manual contains dismantling locations of components, electronic adjustments,worth the money.
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Caracteristiques,circuit adjusment,notes on schematis diagram,it's a good service manual,to live well,thanks.
MC-E601 / MC-E603
8 TROUBLE SHOOTING GUIDE
CONDITION CHECKPOINT Motor fails to rotate. Power cord connection (no noise is heard at all). Motor continuity METHOD OF INSPECTION Check power cord continuity between plug pins and contact base. Check motor continuity between carbon brush holder tabs. Carbon brushes Check if there is gap between carbon brush and conmutator. ON/OFF Switch Check continuity across switch connections. Thermal cut-out Check continuity across thermal cutout tabs. Triac Check if the triac is in open circuit. Power control circuit Check if the diac is in open circuit. Rotating potentiometer (VR2) Check if the potentiometer is in open circuit. Trimmer potentiometer (VR1) Place the rotating potentiometer at min. power and check if the potentiometer (VR1) is adjusted at 450W. Motor runs but does Hose or Suction inlet Check if there is any blockage in the not suction. hose or suction inlet. Dust bag / Central filter Check if dust bag is full or dust accumulated in central filter. Noise or vibration. Motor fan Check dust accumulated in motor fan (it could happen if the vacuum cleaner has been used with a broken bag or without central filter). Motor does not Rotating potentiometer Check if the potentiometer is shortchange power. circuited. (Runs always at full speed). Power control circuit Check if the power control circuit is short-circuited. Motor runs Rotating potentiometer Check possible bad contact of the irregularly. rotating potentiometer PCB tracks. CAUSE / REMEDY If there is no continuity, replace the power cord. If there is no continuity, replace the motor. If there is gap between carbon brush and conmutator, replace both carbon brushes. If there is no continuity, replace power control circuit. If there is no continuity, replace thermal cut-out. If it is in open circuit, replace power control circuit. If it is in open circuit, replace power control circuit. If it is in open circuit, replace power control circuit. If it is adjusted at 450W and the motor doesn�t work, replace power control circuit. If there is any blockage, remove it. If the paper bag is full, replace it. If the central filter is dirty, clean or replace it. If there is dust accumulated in motor fan, replace the motor and check filter condition. (never try to dismantle the motor fan). If it is short-circuited, power control circuit.
If it is short-circuited, replace it. If there is bad contact, replace power control circuit.
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