| 摘要 |
PROBLEM TO BE SOLVED: To increase the reliability of a cathode-ray tube device by making it possible to continuously supply a current and operate a cathode-ray tube continuously even if a wiring pattern on a circuit board cracks (specially, where a large current flows) owing to external stress. SOLUTION: On a conductor part 72 formed of copper foil constituting the wiring pattern on the circuit board 6 which supplies currents to deflection coils 4a and 4b of the cathode-ray tube, an auxiliary conductor part 76 is formed of wiring solder and if the conductor part 72 cracks, the currents are continuously supplied by the auxiliary conductor part 76. |
