Sharp 21F-PA330I Manual de servicio - Página 2
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SPECIFICATIONS
Convergence..........................................................................................................Self Convergence System
Focus.....................................................................................................Electrostatic Focus High Bi-Potential
Sweep Deflection...............................................................................................................................Magnetic
Intermediate Frequencies
Picture IF Carrier..............................................................................................................................38.9 MHz
Sound IF Carrier Frequency
6.5 MHz...........................................................................................................................................32.4 MHz
6.0 MHz...........................................................................................................................................32.9 MHz
5.5 MHz...........................................................................................................................................33.4 MHz
4.5 MHz...........................................................................................................................................34.4 MHz
Colour Sub - Carrier Frequency......................................................................................................34.47 MHz
Power Input.................................................................................................................110 ~ 240V AC 50/60 Hz
Power Consumption..................................................................................................................................97 W
Audio Power Output Rating.......................................................................................................4 W(RMS) x 2
Speaker
Size..................................................................................................................................... 12 x 6 cm (2 pcs)
Voice Coil Impedance...........................................................................................................16 ohm at 400 Hz
Aerial Input Impedance
VHF/UHF.........................................................................................................................75 ohms Unbalanced
Receiving System..................................................................................................................................PAL B/G
Tuner Ranges
VHF - Channels..............................................................................................................................E2 thru E12
UHF - Channels............................................................................................................................E21 thru E69
CATV - Channels............................................................................................................................S1 thru S20
Receiving Frequency...............................................................................................48.5 MHz thru 863.25 MHz
Dimensions (approx.) .............................................................................................................Width: 618.0 mm
Cabinet material.................................................................................................................................All Plastics
Specifications are subject to change without prior notice.
Height: 473.0 mm
Depth: 482.0 mm
Weight(approx): 23.0 kg
2-1
IMPORTANT SERVICE NOTES
Maintenance and repairing of this receiver should be done by qualified service
personnel only.
1. SERVICE OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE
when servicing the high voltage system, remove static change from it by connecting
a 10K ohm resistor in series with an insulated wire (such as a test probe) between
picture tube dag and 2nd anode lead. (AC line cord should be disconnected from AC
outlet.)
Picture tube in this receiver employs integral implosion protection.
1).
Replace with tube of the same type number for continued safety.
2).
3).
Do not lift picture tube by the neck.
4).
Handle the picture tube only when wearing shatterproof goggles and after
discharging the high voltage completely.
2. X - RAY
This receiver is designed so that any X - Ray radiation is kept to an absolute minimum.
Since certain malfunctions or servicing may produce potentially hazardous radiation
with prolonged exposure at close range, the following precautions should be observed:
When repairing the circuit, be sure not to increase the high voltage to more than
1).
30.0kV(at beam 0 µA) for the set.
2).
To keep the set in the in a normal opeartion, be sure to make it function on 27.0kV
+ _
1.5kV (at beam 1,000 µA) in the case of the set.The set has been factory -
Adjusted to the above mentioned high voltage.
*If there is a possibililty that the high voltage fluctuates as a result of the repairs,
never forget to check for such high voltage after the work.
Do not substitute a picture tube with unauthorizerd types and/or brands which may
3).
cause excess X - ray radiation.
3. BEFORE RETURNING THE RECEIVER
Before returning the receiver to the user, perform the following safety Checks.
1). Inspect all lead dress to make certain that leads are not pinched or that hardware
is not lodged between the chassis and other metal parts in the receiver.
2). Inspect all proteative devices such as non - mrtallic control knobs,insulating
fishpapers, cabinet backs, adjustment and compartment covers or shields,
isolation resistor - capacitty networks, mechanical insulators etc.
2-2