Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced. Precautions during Servicing. Locations requiring special caution are denoted by labels and in- scriptions on the cabinet, chassis and certain parts of the product.
When performing service, be sure to read and comply with these and other cautionary notices appearing in the operation and serv- ice manuals. Parts identified by the A symbol and shaded parts are. Replace only with specified part numbers. Note: Parts in this category also include those specified to com- ply with X-ray emission standards for products using cathode ray tubes and those specified for compliance. Crimp type wire connector In such cases as when replacing the power transformer in sets where the connections between the power cord and power trans- former primary lead wires are performed using crimp type connec- tors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps.
Fuse replacement caution notice. Caution for continued protection against fire hazard. Replace only with same type and rated fuse s as specified. Use specified internal wiring. Note especially: 1 Wires covered with PVC tubing. Use specified insulating materials for hazardous live parts. Note especially:. When replacing AC primary side components transformers, power cords, noise blocking capacitors, etc.
Observe that wires do not contact heat producing parts heatsinks, oxide metal film resistors, fusible resistors, etc. Check that replaced wires do not contact sharp edged or pointed parts. When a power cord has been replaced, check that kg of force in any direction will not loosen it.
Power cord. Also check areas surrounding repaired locations. Products using cathode ray tubes CRTs In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compli- ance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products, replace the cath- ode ray tubes and other parts with only the specified parts. Under no circumstances attempt to modify these circuits. Unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube. Important : Do not reuse a connector discard it.
Ww on ae. If the wires are stranded, twist the strands to avoid frayed conductors. Insert the wires fully into the connector. Metal sleeve. Connector Fig. Be sure to crimp fully to the complete closure of the tool. Crimped at approx. Not easily pulled free of metal sioave. Conductors extended. Wire insulation recessed more than 4 mm. Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.
Insulation resistance test. Confirm the specified insulation resistance or greater between power cord plug prongs and exter- nally exposed parts of the set RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc. See table 1 below. Dielectric strength test. Confirm specified dielectric strength or greater between power cord plug prongs and exposed acces- sible parts of the set RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.
Chassis Power cord, primary wire. Leakage current test. Measuring Method : Power ON. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and following exposed table 2. Grounding Class 1 model only Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts Video in, Video out, Audio in, Audio out or Fixing screw etc.
Measuring Method: Connect milli onm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications. Earth pin. Milli ohm meter Fig. AC 3 kV 1 minute 4mm. Table 1 Specifications for each region.
Antenna earth terminals. Other terminals. Table 2 Leakage current specifications for each region. Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality. Il S Be sure to remove the power supply unit prior to mount- ing and soldering of parts. When removing a component part that needs to discon- nect the connector and to remove the screw for remov- ing itself, first disconnect the connecting wire from the connector and then remove the screw beforehand.
When connecting and disconnecting the connectors, be careful not to damage the wire. Carefully remove and handle the part to which some spacer or shield is attached for reinforcement or insula- tion.
When replacing chip parts especially IC parts , desolder completely first to prevent peeling of the pattern. Tighten screws properly during the procedures. Unless specified otherwise, tighten screws at a torque of 0. Remove screw No.
When assembling, per- form in the reverse order of these steps. This number corresponds to the number in the disassembly diagram. Connector Pull both ends of the connector in the arrow direction, re- move the lock and disconnect the flat wire.
Extend the locks in the direction of the arrow for unlocking and then pull out the wire. After removing the wire, immedi- ately restore the locks to their original positions because the locks are apt to come off the connector. Flat wire BN me NS. B-B connector Pull the board by both the sides in the direction of the ar- row for disconnecting the B-B connector.
Cleaning cloth KSMM Table Torque driver. Be sure to use to fastening the mechanism and exterior parts because those parts must strictly be controlled for tightening torque. This bit is slightly longer than those set in conventional torque drivers. Caution for continued protection against fire hazard. Replace only with same type and rated fuse s as specified. Use specified internal wiring. Use specified insulating materials for hazardous live parts.
When replacing AC primary side components transformers, power cords, noise blocking capacitors, etc. Power cord Fig. Also check areas surrounding repaired locations. Products using cathode ray tubes CRTs In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compli- ance with recognized codes pertaining to X-ray emission. Consequently, when servicing these products, replace the cath- ode ray tubes and other parts with only the specified parts.
Under no circumstances attempt to modify these circuits. Unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube.
Crimp type wire connector In such cases as when replacing the power transformer in sets where the connections between the power cord and power trans- former primary lead wires are performed using crimp type connec- tors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps. Important : Do not reuse a connector discard it. If the wires are stranded, twist the strands to avoid frayed conductors.
Insert the wires fully into the connector. Connector Metal sleeve Fig. Be sure to crimp fully to the complete closure of the tool. Observe that wires do not contact heat producing parts heatsinks, oxide metal film resistors, fusible resistors, etc.
Check that replaced wires do not contact sharp edged or pointed parts. When a power cord has been replaced, check that kg of force in any direction will not loosen it.
Not easily pulled free Crimped at approx. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. Insulation resistance test Confirm the specified insulation resistance or greater between power cord plug prongs and exter- nally exposed parts of the set RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.
See table 1 below. Dielectric strength test Confirm specified dielectric strength or greater between power cord plug prongs and exposed acces- sible parts of the set RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.
Clearance distance When replacing primary circuit components, confirm specified clearance distance d , d' be- tween soldered terminals, and between terminals and surrounding metallic parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and following table 2. Grounding Class 1 model only Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts Video in, Video out, Audio in, Audio out or Fixing screw etc.
Measuring Method: Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications. Be sure to confirm the precise values for your particular country and locality. Be sure to remove the power supply unit prior to mount- ing and soldering of parts.
When removing a component part that needs to discon- nect the connector and to remove the screw for remov- ing itself, first disconnect the connecting wire from the connector and then remove the screw beforehand. When connecting and disconnecting the connectors, be careful not to damage the wire. Carefully remove and handle the part to which some spacer or shield is attached for reinforcement or insula- tion.
When replacing chip parts especially IC parts , desolder completely first to prevent peeling of the pattern. Tighten screws properly during the procedures. Unless specified otherwise, tighten screws at a torque of 0.
When assembling, per- form in the reverse order of these steps. This number corresponds to the number in the disassembly diagram. After removing the wire, immedi- ately restore the locks to their original positions because the locks are apt to come off the connector. B-B connector Pull the board by both the sides in the direction of the ar- row for disconnecting the B-B connector. PART Fig. Pin No. Approximate number of storable images. Specifications shown are for SP mode unless otherwise indicated.
LCD monitor off, viewfinder on : Approx. LCD monitor on, viewfinder off : Approx. Important Safety Precautions. Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the. However, in order to maintain such compliance, it is equally important to implement the following precautions.
Locations requiring special caution are denoted by labels and in-.
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