Sharp MZ-80B Service Manual

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• Display Section
l. General specifications
11.
Electrical specifications
Size
9"
Video output
40Vp-p standard (35Vp-p limit)
Vertical
60Hz (vertical), lS.75kHz (horizontal)
Resolution
Horizontal
*The pattern of the left in
Horizontal
•
the center of the picture
Frequency
must be clear.
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P~wer source
DC 12V, 1.1 A ±1O%
Non-linearity
Horizontal; ±8% (±14% max.)
distortion
Vertical; ±8% (±12% max.)
Picture tube E2728B31; 9" 90° deflection
Geometrical Pincushion dist.; 1% {2% max.}
explosion proof type
distortion
Barrel disl.; 1% (2% max.)
Heater;
12V, 7SmA
Trapezoidal dist.; 1% (2% rr,3x.)
1----.
Parallelogram dist.;'o (2.5° max.)
.'
IC's
2 pes. High voltil<;Je
Zero beam; 11.0kV
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I
(1O.0kV, min.,
Transistors
7 pes.
I
12.0kV, max.)
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Diodes
13 pes.
Power su pply
I
DC12.0V, 1.05A (1.2A max.)
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Working range 12V ±10%
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Sound output
400mW max. (440 Hz)
Scan size
Horizontal; 10% (15% max.)
Speaker Bern, round dynamiC type
I
Vertical; 10% (15% max.)
(32I2l
Horizontal
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Control knobs
Volume, V -Hold,
lock"in range
I
±300 Hz (±100Hzlimit)
Contrast, H-Hold,
Vertical
[
Brightness, Focus
lock-in range I
-12 Hz (-6 Hzlimit)
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Working
440 Hz (OdB)
-10'e to SO°C
Audio
frequency I
-10dB ±4dB at 100 Hz
temperature
Characte~istic I
-12dB ±4dB at 10kHz
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•
I
Sound maxi-
I
400mW at 440 H z
mum output
'- ~
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Cassette Tape Recorder
Section
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System PWM recording
BiaSing DC system
5V ± 5%
Erasing
DC system
Power source
12V ± 5% (stabilizing)
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9.5V'"V16.5V (Non-stabilizing)
Playback 667 J1sec. to 333 J1sec.
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sensitivity (standard)
Semi-
22 transistors
Working
I
_10
o
e to +40°C
conductors
13 IC,
temperature
~~
9 diodes
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Storage
-2SoC to +65°e
Tape From
C30 to e60
,
temperature ,
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Tape speed 4.75 cm/sec.
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Track
2-track monaural type
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Motor
Electronic governor motor (12V}
L-_~
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I
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Sharp MZ-80B Specifications

General

Brand	Sharp
Model	MZ-80B
Category	Desktop
Language	English