Traditional Chinese Spectrum multifunctional therapeutic instrument (Workshop Practice) — Circuit, Wiring & Debug Guide

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Spectrum multifunctional therapeutic instrumentThe spectrum multifunctional therapeutic instrument (also known as the simulated Qigong therapeutic instrument) is a physical therapy instrument used in hospitals. The principle is to electrically heat a simulated human spectrum generator (referred to as a spectrum generator), so that the spectrum released excites the resonance of basic particles in the human body, producing "internal heat effect" and biochemical reactions at the lesion. At the same time, the human body's biological electric field is adjusted to improve the lesion condition, eliminate microcirculatory obstacles, regulate and balance the autonomic nervous system, promote metabolism, and achieve the purpose of treatment.Figure 63-1The principle control circuit of FS84-16PWS-simulated Qigong therapy instrument is shown in Figure 63-1. The control circuit consists of a silicon-controlled voltage regulating circuit and a bridge full-wave rectifier circuit. S2 changes the conduction angle of the triac, causing the voltage applied by the bridge rectifier to the spectrum generator to change, thereby achieving the purpose of changing its therapeutic dose. The therapeutic dose indicator actually indicates the magnitude of the output voltage. R2 is a plate-shaped simulated human body spectrum generator with a DC resistance of 180Ω.The WS-101D bridgeless rectifier circuit is shown in Figure 63-2. When S2 is a weak gear, VD1 is used for half-wave rectification, and a half-wave pulsating DC voltage is added to the spectrum pole. When S2 is in the strong position, the thyristor is turned on, and the voltage applied to the RL spectrum generator is AC 220V. The spectrum generator is composed of two spectrum tubes with a DC resistance of 360Ω connected in parallel.WS-301C uses the same spectrum generator as WS-101D. It has no silicon-controlled control circuit and is a general switching circuit.The maintenance of the W spectrum analyzer is divided into two parts: the maintenance of the spectrum generator and the maintenance of the control circuit. Unplug the connection jack on the back of the therapy device and use a multimeter to test the DC resistance of the spectrum generator, which should be about 180Ω. If the resistance is normal, the fault is mostly on the control pole. When the resistance at the test hole is open circuit, do not rush to disassemble the spectrum generator, because the treatment arm jack connection is often folded and easily broken due to artificial pulling, which may cause many failures.The spectrum generator is the heart of the spectrum analyzer and is made of ceramic, so it is easily damaged by falls and collisions. It is also prone to moisture causing the spectrum board to short-circuit or burn out. Due to the confidentiality of the factory, there are no accessories for sale. If the spectrum generator is not completely broken, the following methods can be used to repair it.(1) Use a multimeter to find the breaking point, use a knife to gently scrape out the two sections, clean the section with ethanol, and connect the two sections with silver paste.(2) Place the spectrum plate (or tube) …

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