Technics SH-EH750

m@ Schematic Diagram
Page
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@ This schematic diagram may be modified at any time with the development of new technology.
Notes:
e S601 : Display mode select switch (DISPLAY MODE)
e S602 : DOLBY PRO LOGIC on/off switch (AO PRO LOGIC OFF/ON)
e S603 : Super surround switch (SUPER SURROUND)
e S604 : Simulated stereo on/off button switch (SIMULATED STEREO)
© S605 : Center focus switch (CENTER FOCUS)
e S606 : Virtual rear surround switch (VIRTUAL REAR SURROUND)
© S607 : Multi rear surround switch (MULTI REAR SURROUND)
e $608 : Seat position switch (SEAT POSITION)
@ S609~S612 - JOY stick (S609 : B, S610: A, S611 : <4, S612: v)
© S613 : 3D Al EQ switch (3D Al EQ)
e S651 : JOG control switch (MULTI JOG)
SH-EH750
® Indicated 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.
® Important 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 (resistois), etc. are used.
When replacing any of components, be sure to use only manufacturer's specified parts shown in the parts list.
® Caution!
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 work table.
Do not touch the legs of IC or LSI with the fingers directly.
@ Voltage and signal line
Wet
: Positive voltage line
: Negative voltage line
: CD signal line
: Surround SP.drive signal line
: Center SP.drive signal line