Specifications; Important Service Notes - Sharp CX68KF5 Service Manual

SPECIFICATIONS

Power Input ....................................................................................... AC 220 - 240V, 50 Hz
Power Consumption ............................................................................... 158 W (CX68KF5)
Convergence .............................................................................. Self Convergence System
Focus ..................................................................... Bi-Potential, Uni-Potential Electrostatic
Sweep Deflection ................................................................................................... Magnetic
Intermediate Frequency
Picture IF Carrier ............................................................................................... 38.9 MHz
Sound IF Carrier
5.5 MHz .......................................................................................................... 33.4 MHz
Colour Sub-Carrier
PAL ............................................................................................................... 34.47 MHz
Audio Power Output Rating .......................................................................... 10W × 2 (Max)
Speaker
Size ...................................................................................................... 12 × 8 cm × 2 pcs.
Aerial Input Inpedance ........................................................................ 75 ohm Unbalanced
Receiving Channels
PAL-B/G
VHF ....................................................................................................... E2 thru E12
UHF ..................................................................................................... E21 thru E69
CATV ....................................................................................................... X thru Z + 2,
Receiving Frequency
VHF ...................................................................................... 44.25 MHz thru 423.25 MHz
UHF .................................................................................... 431.25 MHz thru 863.25 MHz
Dimensions ............................................................................................... Width : 800 mm
Specifications are subject to change without prior notice.
163 W (SX68KF7)
S1 thru S41
Height : 583 mm
Depth : 512 mm
Weight (Approx) : 47.0 kg
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IMPORTANT SERVICE NOTES

Maintenance and repair of this receiver should be done by
qualified service personnel only.
SERVICE OF HIGH VOLTAGE SYSTEM AND
PICTURE TUBE
When servicing the high voltage system, remove static charge 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.)
1. Picture tube in this receiver employs integral implosion protection.
2. Replace with tube of the same type number for continued safety.
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
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:
1. When repairing the circuit, be sure not to increase the high voltage to more
than 34.0 kV (at beam 0 µA) for the set.
2. To keep the set in a normal operation, be sure to make it function on 30.0 ±1.5
kV (at beam 1,800 µA) in the case of the set. The set has been factory – Adjusted
to the above-mentioned high voltage.
If there is a possibility that the high voltage fluctuates as a result of the
repairs, never forget to check for such high voltage after the work.
3. Do not substitute a picture tube with unauthorized types and/or brands
which may cause excess X-ray radiation.
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 protective devices such as non-metallic control knobs, insulating
fishpapers, cabinet backs, adjustment and compartment covers or shields,
isolation resistor-capacity networks, mechanical insulators and etc.
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