Mitsubishi da a30 service manual

Page 1

AMITSUBISHI

AUDIO SYSTEMS

SERVICE MANUAL

STEREO POWER AMPLIFIER
MODEL DA-A3O

L4]

. /_". mm. .M A30 Juan mime Ami"

"_-

SPECIFICATIONS

105 watts per channel, min. RMS, at 8 ohms from 20Hz to
20kHz with no more than 0.008% total harmonic distortion

Total harmonic distortion

lntermodulation distortion
(70H: and 7kHz 4le

Power bandwidth ......
(IHF)
Frequency response . . .

115 watts per channel, min. RMS,
into 4 ohms at 1kHz with 0.1%
total harmonic distortion.

140 watts per channel, min. RMS,
into 4ohms at 1kl-lz with 0.1%
total harmonic distortion.

0.003% at 50W per channel, both
channels driven into 8 ohms from
20Hz to 20kHz

. 0.006% at rated power, 80hms

0.008% at 1W per channel, 80hms
10Hz to 100kHz at 0.1% THD,
80hms

. i 0.1d8 from 20Hz to 20kHz at

rated power, 80hms
+0 dB from DC to 150kHz at

0.5W per channel, 80th

Dynamic headroom . 2.0d8
Input sensitivity]
impedance ........ 1V (variable)/50kohms

Damping factor .......

100 from 20Hz to 20kHz, 80hms

Channel separation .....
Hum and noise .......

Signal to noise ratio
(at rated power)

Slew rate
Power comsumption . . . .

..........

Dimensions .........
(W x H x 0)
Weight ............

Supplied with ........

Design and
notice for improvement.

10068 at 1l

80dB at 20l

0.15mV (unweughted, closed
circuit)

107dB (unweighted, closed
circuit)

122d8 (IHF, A network, closed
circuit)

119dB (DIN, closed circuit)
109d8 (DIN, 47kohms/l250pF
terminated)

200V/micro sec. at 100V p-p
400W at rated power, 80hms
280W (UL nominal)

470 x135 x 357 mm

(18-1/2 X 55/16 x 14-1/16")
14.5kg (32Ibs)

Pin plug cord
Speaker control cable

specifications are subject to change without

Amrsuelsm ELECTRIC CORPORATION

Page 2

DA-A3O

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NOTE:

Units of C and R are as follows,
Capacitors: non-symbol pF
p-symbol pF

2. All resistors are carbon l/4W unless otherwise specified.

0307'
23A84T

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Resistors: non-symbol £2
k-symbol

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CTL-Be

A

ksz A}. and

marked components have specual characteristics to maintain
M9 the safety performance of this unit. When replacing any of these parts, be sure to
use only those specified on the parts list.

3, Schematic of the R channel lamp. bias, power supply and AVC circuit) is Since this schematic is a basuc diagram of the set, values of component parts etc.,
abbreviated on this diagram.

are subject to change without notice for improvement.