MOD OPPO UDP-203 Player Linear Power Supply Upgrade Kit（NORATEL Digital Player）

Description: MOD OPPO UDP-203 Player Linear Power Supply Upgrade Kit（NORATEL Digital Player） OPPO Upgrade KIT ProjectTo complete this project, you need to have superb electronics knowledge and a certain amount of DIY ability. Due to time zone and language communication restrictions, we can only provide limited technical support, and you need to solve problems by yourself. We do not provide information other than the product introduction page.MOFI-MOD OPPO UDP-203 Fully Discrete Linear Power Supply Upgrade Kit （NORATEL Digital Player）ProjectAll-discrete topologySeries regulator design.No IC (integrated circuits) are used.Low noise, high PSRR A low-pass filter (with a corner frequency of 1.6Hz) prevents zener noise from being introduced into the error amplifier. The error amplifier is a discrete implementation of an opamp with a high open-loop gain of 102.5dB. A long-tailed pair differential amplifier with current mirror and constant current source forms the first stage of the error amplifier. The second stage is the voltage amplification stage (VAS), also with constant current source load. The 3rd stage is comprised of the power MOSFET output devices configured as a source follower.High-current MOSFET pass transistors.The high current rating provides a very high safety headroom against overcurrent damage.The negative temperature coefficient of MOSFETs prevents damaging thermal-runaway conditions that may plague conventional BJT devices.Do not short the output terminal to discharge capacitor, otherwise it will damage the power board.Use 50VA NORATEL transformer, can provide powerful energy supply.Use audio dedicated capacitors.Using 4MM aluminum plate, can provide firm installation and sufficient heat dissipation.Use gold-plated socket/components.Product configurationAfter soldering the upgrade module, we have tested the key point voltage, and employ the electronic load meter and the oscilloscope for double testing.OPPO UDP-203 NORATEL Digital Player Linear Power Supply Module 1PCSDoes not provide any wires。Our shop provides hiend cables for you to buy。TIPS:This module does not support OPPO UDP-203 multi-channel output.After upgrading this module, multi-channel function will be disabled.PicsAll-discrete topologyNo IC (integrated circuits) are used.Use audio dedicated capacitors.Nichicon KG Type-I 6800uF X3PCSUse gold-plated socket/componentsUsing 4MM aluminum plate, can provide firm installation and sufficient heat dissipation.Use 50VA NORATEL transformer, can provide powerful energy supply.Payment Method: PayPal preferred Shippment: 1.We provide free shipping to international via China Post Airmail,and every parcel will be registered with tracking number.We can also ship by EMS/DHL/FedEx/Aramex for alternative shipping method for corresponding fees. Please let us know before payment if you need split shipment. 2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions etc, If you have not received your shipment within 30 days from payment, please contact us. Returns & Replacements & Repair We accept returns & replacements within 14 days from the day the customer receive the products, please make first contact within 14 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways. Feedback : 1)Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thanks! 2)We always offer the lowest price for best goods and service to you. 3) Please contact us before leaving neutral(3 stars) or negative(1-2 stars) feedback.We will try our best to solve the problem and leave you a happy shopping mood here.

Price: 159.6 USD

Location: wuhan, 湖北省

End Time: 2025-01-22T04:11:11.000Z

Shipping Cost: 10 USD