Service manual

MZ 80K
• Display Section (DUTT0004PAZZ)
I. General specifications
11. Electrical specifications
Size
10"
Video output
40Vp-p standard (35Vp-p limit)
60Hz (vertical), 15.75kHz (horizontal)
Resolution
Horizontal
Frequency
11
These patterns must
15.75kHz (horizontal)
be clear-cut.
Power source DC
12V, 1.1A±10%
Non-linearity
Horizontal;
±8% (±14% max.)
distortion
Vertical; ±8% (±12% max.)
Picture tube
Quick start type (3 sec.)
Geometrical Pincushion dist.; 1% (2% max.)
240NB4; 10"90° deflection
distortion Barrel dist.; 1% (2% max.)
explosion proof type
Trapezoidal dist.; 1% (2% max.)
Heater;
12V. 75mA
Parallelogram dist.; 1° (2.5° max.)
IC
2 pcs.
High
voltage
Zero beam; 11.0kV
(10.0kV, min.,
Transistor
5 pcs.
12.0kV, max.)
Diodes 9 pcs.
Power
supply
DC12.0V,
1.05A O.2A max.)
Working
range 12V ±10%
Sound output
400mW max. (400 Hz)
Scan size
Horizontal; 10% (15% max.)
Speaker Bcm, round
dynamic type
Vertical; 10% (15% max.)
(32Q)
Horizontal
Control
knobs Volume, V-Hold,
lock-in
range
±300 Hz (±100Hz)
Contrast, H-Hold,
Vertical
Brightness, Focus
lock-in range
-12 Hz (-6 Hz limit)
Working
Audio
400 Hz (OdB)
-lO°C to 50°C
fri4uency
-10dB ±4dB at 100 Hz
temperature
characteristic
-12dB ±4dB at 10kHz
Sound maxi-
400mW at 400 Hz
mum output
(350mW min.)
• Cassette tape recorder Section (KTRC-0004PAZZ)
•
System
PWM recording
Biasing
DC system
Power source
5V ±0.25V (rated)
Erasing
DC system
Rated amperage Wait;
2mA
Playback
1 m sec. to 500J.L sec. (standard)
Record;
70mA (TEAC test tape)
sensitivity
Playback; 7mA (TEAC test tape)
Input level
Below O.4V
("L")
Semiconduc-
4 transistors
Over 2.0V ("H")
tors
1
IC
Input
Over 10kn (record jack)
4 diodes
impedance
Applied tape
From C30 to C120
Output level
Below O.4V
("L")
Over 2.0V ("H")
Tape speed 4.75 cm/sec.
Working
-lO°C to 50°C
Track
2-track
monaural type
temperature
Motor
Electronic governor motor (12V)
Storage.
-25°C to 70°C
temperature
* Specifications subject to change without prior notice.
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