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Model No: 21HAP1BE
Version 1.0
CIRCUIT ADJUSTMENTS
GENERAL INFORMATIONS
All adjustment are thoroughly checked and corrected when the receiver leaves the factory.
Therefore the receiver should operate normally and produce proper color and B/W pictures
upon installation. However, several minor adjustments may be required depending on the
particular location in which the receiver is operated.
This receiver is shipped completely in carton. Carefully draw out the receiver from the carton
and remove all packing materials. Power cord into a convenient 220 volts 50 Hz AC two pin
power outlet. Turn the receiver ON. Check and adjust all the customer controls such as
BRIGHTNESS, CONTRAST and COLOUR Controls to obtain natural color or B/W picture.
AUTOMATIC DEGAUSSING
A degaussing coil is mounted around the picture tube so that external degaussing after
moving the receiver is normally unnecessary, providing the receiver is properly degaussed
upon installation. The degaussing coil operates for about 1 second after the power to the
receiver is switched ON. If the set is moved or faced in a different direction, the power switch
must be switched off at least 30 minutes in order that the automatic degaussing circuit
operates properly. Should the chassis or parts of the cabinet become magnetized to cause
poor color purity, use an external-degaussing coil. Slowly move the degaussing coil around
the faceplate of the picture tube, the side and front of the receiver and slowly withdraw the coil
to a distance of about 2m before disconnecting it from AC source. If color shading still
persists, perform the COLOUR PURITY ADJUSTMENT and CONVERGENCE
ADJUSTMENTS procedures.
ADJUSTMENT MODE
B+ adjustment, TV signal receiving
Item
AKPH01 chassis
Measuring
Equipment
TV SG (Signal Generator)
Digital multi-meter
Preparation
Before Adj.
The set is turned on
Connect the TV SG to RF input terminal of the set.
