Panasonic sa ax 710 schematic

Page 1

I Schematic Diagram

SA-AX710

Page
SURROUND CIRCUIT ...................................... as, 39
I MAIN CIRCUIT ................................................... 38 - 42
TRANSFORMER CIRCUIT .................................... 42
|| POWER SUPPLY CIRCUIT .................................. 42
Ac IN CIRCUIT .......................................................... 42

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TUNER CIRCUIT. ....... 30. 31
E IN/OUT TERMINAL CIRCUIT .. 32 - 34
FL CIRCUIT ........................................................ 35-37
m HEADPHONES CIRCUIT ....................................... 37
POWER SWITCH CIRCUIT ................................... 37
(This schematic diagram may be modified at any time with the development of new technology.)
Notes:
0 8946 : Power STANDBY tb/ONswitch. (POWER, STANDBY (ti/ON)
0 $948 : Muting switch. (MUTING)
O 8950 : FM mode select switch. (FM AUTO/MONO)
O 8951 : Band select switch. (BAND)
0 8952 : Tuning switch. (v)
0 $953 : Tuning switch. (A)
0 $954 : Sleep switch. (SLEEP)
o 8955 : Memory switch. (MEMORY)
0 S956 : Preset tuning switch. (v)
0 8957 1 Preset tuning switch. (A)
O 8958 : Help/reset switch. (-HELP -RESET)
0 S965 : 60h discrete input select switch, (60H DISCRETE INPUT)
0 $970 : PTY search switch. (SEARCH)
0 8971 : EON ONIOFF switch. (EON)
0 $972 : PTY select switch. (A)
O 8973 : PTY select switch. (V)
o 8974 : RDS display mode select switch. (DISPLAY MODE)
0 8975 : DVD swilch. (DVD)
0 8976 : Delay time adjust switch. (DELAY TIME)

0 Indicated voltage values are the standard values tor 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 ....... FM

( ) AM

< Fan motor OFF
I" J .. Fan motor ON

0 Important safety notice:
Components identified by Q, 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.

0 Caution!
IC and LSI are sensitive to static electricity.
Secondaw 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.

0 8980 : Speakers select switch. (SPEAKERS A)

O 5981 : Speakers select switch. (SPEAKERS B)

0 $982 : Loudness ONIOFF switch. (LOUDNESS)

0 $983: DOLBY PFlO LOGIC OFF ON switch. (OFF/ON).
O 8984: DOLBY PRO LOGIC mode detect Switch. ( DD PRO LOGIC)
0 $985 : Center mode select switch. (CENTER MODE)

0 3991 : Phono switch. (PHONO)

o 5992 : Tuner switch. (TUNER)

o 8993: CD switch. (CD)

0 8994: Tape monitor switch. (TAPE MONITOR)

O 8995 : TVNCH 2 switch. (TVNCR 2)

0 8996 : VCR1 switch. (VCR 1)

O VR401 : Input level control VR. (SURROUND L LEVEL)
0 VR402 2 Input level control VR. (SURROUND R LEVEL)
0 VR403: Input level control VR. (CENTER LEVEL)

0 VR501 : Volume control VR. (VOLUME)

0 VR502: Balance control. (BALANCE)

O VR511 : Bass control VR. (BASS)

o VR512: Treble control VR. (TREBLE)

: FM SIGNAL LINE

DDD(> : FM 050 SIGNAL LINE
fl : AM SIGNAL LINE
I up : AM 050 SIGNAL LINE
32> : MAIN SIGNAL LINE
I::I 51> : CENTER SPEAKER SIGNAL LINE
EMU) : SURROUND SPEAKER SIGNAL LINE
I: g : SUB WOOFER SPEAKER SIGNAL LINE
: REC OUT SIGNAL LINE

.3- : +B LINE

my... : -B LINE

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