$123.14 Buy It Now or Best Offer
free,30-Day Returns
Seller Store eama0910
(10165) 99.4%,
Location: Wuhan
Ships to: US,
Item: 115959424346
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Return policy details:
Jolooyo:Jolooyo
Type:OPPO-203
Unit Type:Unit
Country/Region of Manufacture:China
Unit Quantity:1 pc
To Fit:Power Supply
MOFI-MOD OPPO UDP-203 Player Linear Power Supply Upgrade （R-Core Digital Player） Welcome to the MOFI-Acoustics store. In order to provide better shopping experience, let me clarify these informations to avoid unnecessary inconvinience: 1. All products in the store are not included: customs duties, customs clearance fees and tax. Without special requirements, we will declare them according to the price of the product.2. We hope that you can understand the relevant taxation policies of your local customs. We do not accept your refusal for goods due to customs taxation issues; (in some countries, the platform has the option of pre-collecting tariffs). 3. In order not to affect your receipt of the goods, after purchasing the goods, please pay more attention to information such as emails, platform messages, etc. If there is any information about the unclear address or the logistics policy changes, we will notify you as soon as possible, and look forward to you reply.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.SummaryAll-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 30VA R-Core 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/componentsProduct 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 R-Core 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.Rubycon RX30 2200uF X11PCS-Using 4MM aluminum plate, can provide firm installation and sufficient heat dissipation.-Use gold-plated socket/components-Use 30VA R-Core Transformer, can provide powerful energy supply.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 UPS/EMS/DHL/FedEx 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. 3.Time of Delivery:Based on the China Post Airmail and our experience, kindly please be noted that To United States / United Kingdom / Australia, it takes around 10-15 business days; To Canada, it takes around 12-18 business days; To Brazil / South America, it takes around 25-35 business days. To Italy / France / Spain / Germany/ Eastern Europe, it takes aournd 15-20 business days. Returns & Replacements & Repair: We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 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, thank you so much! 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. Thank you!
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