Sharp SX76NF200, Service Manual

2

2-1

2-2

SX76NF200

SPECIFICATIONS

Convergence ................................................................. Self Convergence System
Focus ........................................................... Electrostatic Focus High Bi-Potential

Sweep Deflection ...................................................................................... Magnetic
Intermediate Frequencies
    Picture IF Carrier .................................................................................. 38.9MHz
    Sound IF Carrier Frequency
       5.5MHz .............................................................................................. 33.4MHz
    Colour Sub-Carrier Frequency ............................................................ 34.47MHz

Power Input ........................................................................ AC 220 ~ 240V  50 Hz
Power Consumption ...................................................................................... 163W

Audio Power Output Rating ............................................ 5W + 5W + 10W(at Max.)

Speaker
    Size .............................................................................. 11 x 5 cm Elliptic (2 pcs)
                                                                                           10cm Round (1pc)
    Voice Coil Impedance ..............................................................4 ohm (11 x 5cm)
                                                                                                      8 ohm (10cm)

Aerial Input Impedance
    VHF/UHF ............................................................................ 75 ohm Unbalanced

Receiving System (PAL-B/G)
    VHF ....................................................................................... AU 0 thru AU 12 ch
    UHF ........................................................................................ E 21 thru E 69 ch

Receiving Frequency ................................................... 45.25MHz thru 855.25MHz

Dimensions ................................................................................... Width: 880.0mm

Height: 566.0mm

 Depth: 545.0mm

 Weight(approx): 54.5 kg

Cabinet material .................................................................................... All Plastics

Specifications are subject to change without prior notice.

IMPORTANT SERVICE NOTES

Maintenance and repairing of this receiver should be done by quali-
fied service personnel only.

SERVICE OF HIGH VOLTAGE SYSTEM AND PIC-
TURE 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 34.5kV(at

beam 0 

µ

A) for the set.

2. To keep the set in a normal operation , be sure to make it function on 30.5kV

±

1.5kV(at

beam 1800 

µ

A) 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 repairing,

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- ca-
pacity networks, mechanical insulators etc.