$74.34 Buy It Now or Best Offer
free,30-Day Returns

Seller Store delta9electronics
(434) 100.0%,

Location: Baldwin
Ships to: US,
Item: 223621376202

Returns Accepted:ReturnsNotAccepted
Custom Design:Custom Design
AWR-154-A5:AWR-154-A5
MPN:AWR-154-A5
Country/Region of Manufacture:Canada

Save, restore, upgrade your Pioneer SX-1980 TOTL monster receiver. The last of a generation. For sale, a brand new power supply pcb (un-populated). This improved design addresses a number of reliability issues regarding the original design. Replaces the jfet constant current sources with a LED/complementary bipolar transistor design. Implements hi-performance heatsinks, 105C Nichicon or equivalent ecaps, OnSemi parts. This listing is for the blank (un-populated) pcb. You are required to assemble this pcb yourself, in order to reduce your costs. It is a double sided pcb, 2 oz. copper cladding, green solder-mask, silkscreen printing for easy component location/identification. Assumptions are, that the purchaser is familiar with assembling electronics. It is not intended for a novice. You need the following skills, reading schematics, knowing ohms law helps :-), assembly documentation, how to solder, de-solder, use a DMM (Digital Multi-meter) to test, troubleshoot and have necessary tools. You need to remove the original pcb and install this newly assembled pcb, test. We also offer an assembled and tested pcb in another listing. It is possible to use this power supply for other DIY audio pre-amp/power-amp projects. You need a transformer, chassis, etc. Some minor component modifications maybe necessary to change the regulated supply voltages and protection circuit sensitivity, to suit your requirements. Contact us for details. What you will get.1) One blank AWR-154 pcb that is the exact same size/dimensions as the original. 2) A full set of assembly documentation and notes. 3) Listing will supply, upon purchase and shipping, a Bill of materials (BOM) with a link to the Parts Supplier’s web site in order for you to order the parts. Design uses modern, high quality common parts. You might already have some of these parts in your stock. If any part is back-ordered, you can source the parts from other distributors or we can help you. 4) You can contact us for technical support. Use the email link at the end of the Build and Installation guide.5) Blank GWR-106,GWR-107 rectifier boards, tested uPC1237HA protection chip, TF1 (Thermal fuse mounted), R101 (3R3/20W soft-start) are also included as a bonus AWR-154 is for 120VAC only models such as KC/KU/ and 120/240V S/SG sub models. AWR-155 uses the same blank pcb. It is an assembly variation for European only 220/240VAC (HG). It uses a 4.7ohm soft-start vs 3.3ohm You get the link to the Mouser shopping cart that is used to build the current pcb assembly revision, revision A4 uses the uPC1237 protection chip only which is supplied with the blank purchase, that and the blank GWR-106,107 too. The old PA3004 protection chip, is not supported anymore because the chip is too expense to buy.

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