Onkyo A-8700 Service Manual

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IC BLOCK DIAGRAM
TA7317P (Protective circuit)
9
r-------------- -------- -------- .....
I ~---L----, ~......J--..... I
I I
l POWER ON -OFF I
I DETECTION I
I CIRCUIT :
OVER C~ENT
DETECTION
CIRCUIT
! DIRECT
I VOLTAGE
SHUM ITT
CIRCUIT
RELAY
DRIVE
CIRCUIT
I
I
I
I
I
I
I
6
DETECTION
!R UIT
GND I
-- -- --0--- --- ---- - _.J
7 , 5
NJM4560DX (OP Amp.)
NJM5532DD
NJM2902N (OP Amp)
Vee
8
s
FRONT PANEL FACILITIES
1. Power switch (POWER)
2. Servo operation indicator (SERVO OPERATION)
3. Muting switch (MUTING)
4. Mode selector switch (MODE)
STEREO, MONO
5. Volume control (VOLUME)
6. Input selector and Indicators (INPUT SELECTOR)
PHONO, TUNER , CD-2, CD-1, SOURCE,
TAPE-2, TAPE-I/VIDEO, DAT
7. Speaker selector switch (SPEAKERS)
OFF,
A, B, A+B
-4-
lCMI - O.t,1,0 :;fDC\VI
0.l( lll:TI A-,1 0
6
1 I I
8. Headphone jack (PHONES)
9. Bass control (BASS)
10. Treble control (TREBLE)
11. Balance control (BALANCE)
12. Source direct switch (SOURCE DIRECT)
TONE , DIRECT
13. Recording source selector switch (REC SELECTOR)
TAPE-1-DAT & TAPE-2/DAT-TAPE-1 &TAPE
OFF
SOURCE (PHONO, TUNER , CD-1 or CD-2)
14. Cartridge selector switch
(CARTRIDGE)
MC SUBSONIC, MC, MM, MM SUBSONIC
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Onkyo A-8700 Specifications

General

Brand	Onkyo
Model	A-8700
Category	Amplifier
Language	English