Pioneer A-90 Amplifier
Manufacturer:
No picture available!
Maybe you can upload a photo for the
Pioneer A-90 ?
If you have any other manuals for the
Pioneer A-90 you can upload the files here .
Model:
A-90
Date:
1983
Category:
Group:
Description:
Stereo Amplifier
Information
Amplifier Section
Continuous Average Power Output is 200 watts* per channel,
min., at 8 ohms from 20 Hertz to 20,000 Hertz with no more
than 0.002 % total harmonic distortion"
Continuous Power Output at 1kHz (both channel driven)
T. H. D. 0.002%, 8 ohms.............. 220watts per channel
Total Harmonic Distortion (20 Hertz to 20,000 Hertz,
8 ohms)
continuous rated power output
...................................................**No more
than 0.002%
100 watts per channel power output
...................................................**No more
than 0.002%
Intermodulation Distortion (B0 Hertz: 7,000 Hertz = 4 : 1,
8 ohms)
continuous rated power output
...................................................... No
more than 0.002%
Damping Factor (20 Hertz to 20,000 Hertz, 8 ohms)
.......................................................................................100
Input (Sensitivity/Impedance)
PHONO MM .......................................2.5mV/50 kilohms
PHONO MC..........................150μν/100 ohms, 33 ohms
TUNER, CD/AUX1, AUX2, TAPE PLAY 1, 2
...........................................................150
mV/50 kilohms
Phono Overload Level (T.H.D. 0.008%, 1,000Hz)
PHONO MM
......................................................... 300mV
PHONO
MC........................................................... 18mV
Output Level/Impedance
TAPE REC 1, 2...............................150mV/2.2 kilohms
Frequency Response
PHONO MM (RiAA Equalization)
..............................................20Hz to
10Q,OO0Hz±0.2dB
TUNER, CD/AUX1, AUX2, TAPE PLAY 1, 2
...................................................5Hz to
100,000Hz±^dB
Tone Control
BASS..........................±6dB (100Hz) at 200Hz Position
.....................Turnover frequency: 100Hz/200Hz/400Hz
TREBLE.......................±6dB (10kHz) at 4kHz Position
Turnover frequency: 2kHz/4kHz/8kHz
Filter
LOW (SUBSONIC)............................... 15Hz (-6dB/oct.)
Hum and Noise (IHF, short circuited A network)
PHONO MM
........................................................... 89dB
PHONO
MC.............................................................
74dB
TUNER, CD/AUX1, AUX2, TAPE PLAY 1,2 . . 113d8
Muting.........................................................................—20dB
Miscellaneous
Power Requirements....................................120V,
50/60Hz
Power Consumption.........................................
350W(UL)
Dimensions....................... 420(W) x 150tH) x 420(D) mm
16-9/16(W) x 5-7/8(H) x 16-9/16(D) in Weight (without
package).................... 19.6kg (43 lb 3 oz)
Furnished Parts
Operating
Instructions........................................................
1
Manual type:
Service Manual
Pages:
42
Size:
14.23 Mbytes (14925176 Bytes)
Language:
english
Revision:
Manual ID:
ARP-344-0
Date:
Quality:
Scanned document, all readable.
Upload date:
2015 09 27
MD5:
31764633d2bff049e19c8abc27438a8c
Downloads:
945
Information
This service manual is applicable to the KU type.
1.
SPECIFICATIONS ...
2
2. FRONT PANEL FACILITIES ... 3
3. BLOCK
DIAGRAM ... 5
4. CIRCUIT DESCRIPTIONS ... 7
5. PARTS
LOCATION ... 10
6. EXPLODED VIEWS
AND PARTS LIST ... 13
7. P.C. BOARDS CONNECTION
DIAGRAM ...
19
8. SCHEMATIC DIAGRAM ... 27
9. ELECTRICAL PARTS LIST ... 33
10. ADJUSTMENTS
... 40
11. SAFETY INFORMATION ... 41
12.
PACKING ... 42