Onkyo A-933 Service Manual

MICROPROCESSOR TERMINAL DESCRIPTIONS-2
Q701 : MPD780022AGC-166-8BS
A-933
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Pin name
X1
VSS1
REMIN
K0(STANDBY/ON)
POFF
SYSIN
SYSOUT
HP IN
SPA RL
SPB RL
NF MUTE
HPMUT
AMUT
ACPOWER
PWM CNT
MAIN IN
VOLUP
VOLDN
TONE/DIRECT
TAPE LED
MD LED
LINE LED
CD LED
TUNER LED
I/O
I
---
I
I
I
I
O
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Description
Crystal oscillation circuit input. (8MHz)
Ground.
Signal input from remote sensor.
K0 (STANDBY/ON) key input.
Power failure detection input.
System control (RI) signal input.
System control (RI) signal output.
Phones detection signal input.
SPEAKERS-A relay control output.
SPEAKERS-B relay control output.
Muting control output of Power amplifier section.
Muting control output of headphone amplifier section.
Muting control output of pre-amplifier section.
Main power relay control output.
PWM control output of Power amplifier section.
MAIN IN input selector control output.
Motor volume control output.
Motor volume control output.
TONE / DIRECT selector control output.
TAPE LED control output.
MD LED control output.
LINE LED control output.
CD LED control output.
TUNER LED control output.
Act..
CLK
---
H
A/D
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H

Onkyo A-933 Specifications

General

Frequency range	10 - 60000 Hz
Signal-to-Noise Ratio (SNR)	100 dB
Total Harmonic Distortion (THD)	0.08 %
Product color	Black
Dimensions (WxDxH)	275 x 103 x 328 mm
Power requirements	AC 220-240 V, 50 Hz
Power consumption (standby)	0.9 W
Power consumption (typical)	100 W

Weight and Dimensions

Weight	7500 g