SPECIFICATIONS
Aerial impedance
………………………………………………………
75
Ω
unbalanced
Convergence
……………………………………………………………
Auto focus system
Focus
……………………………………………………………………
Double high level static focus
Rated audio output frequency
…………………………………………
Max 3W
×
2
Picture carrier frequency
………………………………………………
38MHZ
Sound carrier frequency
………………………………………………
31.5MHZ
Power supply
…………………………………………………………
AC 135~240V 60HZ/50HZ
Power consumption
……………………………………………………
75W
Loudspeaker
……………………………………………………………
Round loudspeaker
scanning deflection
……………………………………………………
Magnetic deflection
Tuning range
……………………………………………………………
REMARKS
Please refer maintenance and servicing to qualified service personnel.
High voltage system and picture tube
When repairing high voltage system, an insulation line (such as a probe) must be
connected to a 10
Ω
resistant in series between the metallic part(ground ) and the second stage of
the picture tube to eliminate the static electricity of the high voltage system. The AC mains
plug must be separated from the AC power supply.
1 The picture tube of the receiver adapts integrated inner anti-explosion.
2 For safety continuity, only tube of the same model can be used for replacement.
3 Do not lift the tube by its neck.
4 The picture tube can't be dealt with until the anti-shock screen is worn and the high voltage
system is discharged thoroughly.
X-ray
This receiver is designed to keep the X radiation to absolute minimum. Yet malfunction or
servicing might cause the danger of exposing sealed areas to excessive radiation. Therefore the
precautions below must be followed:
1 During servicing, never let the high voltage of the receiver exceed 28KV I=0uA
2 The high voltage must be kept at 25.5KV
±
1.5KV I=1000 uA so that the receiver can operate
normally. The receiver has been set to the said high voltage before leaving the factory.
After servicing, high voltage fluctuation may occur. Be sure to examine whether the high
voltage fluctuates or not after servicing.
3 Do not replace with unauthorized picture tube in case of excessive X radiation.
Before return
Before returning the receiver to its user, please go through the following safety examinations:
1 Check all the insulation of the wires between the chassis and the other metallic parts of the
receiver. Make sure that no insulation damage or short contact occurs.
2 Check all the protection devices, such as non-metallic control buttons, tuners on the rear
cover ; etc.
Description of new circuit
