Technics SU-VX720 - Schematic Diagrams - Power and Control; Power Switch and AC;Volt Adj. Circuit Schematics; Component Terminal Guides

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Notes:
eSi : Power switch in ‘‘ON” position. (POWER)
(B...OFF, m...ON)
eS2 ; Voltage select switch in ‘240 V”’ position. (VOLT ADJ) for (EG) (EB) (EO) (GN) areas
Voltage select switch in ‘110 V-127 V”’ position. (VOLT ADJ) for (GC) area
eS101 : Input select switch in “PHONO” position. (INPUT SELECT)
°0S102 1 Rec select switch in “TAPE 2/DAT ® 1” position. (REC SELECTOR)
eS103 : Phono cartridge select switch in “‘“MC”’ position. (PHONO SELECTOR)
e$201 : Mode select switch in “STEREO” position. (MODE)
@$202 : Loudness switch in ‘““OFF”’ position. (LOUDNESS)
@$203 : Source direct switch in “ON” position. (SOURCE DIRECT)
@S204 : Subsonic filter switch “OFF”’ position. (SUBSONIC FILTER)
eS501 : Speaker select switch in ‘‘OFF”’ position. (SPEAKERS)
©S801 : Remote control input erase switch. (OFF)
eindicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis
taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit
tester. No mark: Power ON ( ) Indicated voltage: When D810-2 is lighting up
e|mportant safety notice:
Components identified by A mark have special characteristics important for safety.
Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are
used. When replacing any of components, be sure to use only manufacturer's specified parts shown in the parts list.
eThis schematic diagram may be modified at any time with the development of new technology.
eCaution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the word table.
Do not touch the legs of IC or LSI with the fingers directly.
Voltage and signal line
: Positive voltage line.
: Negative voltage line.
: Phono signal line.
: Recording output signal line.
Power Source For (GC) area.
SS Se
An POWER SWITCH CIRCUIT
JK 502
HEADPHONES
AF2 TSA ( POWER)
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CIRCUIT
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