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ear-01 MINI headphone amplifier of the report  by: mingtau
This sample PCB is a headphone amplifier. I’ve heard the performance personally, so that I am highly interested in it. Ben wants to keep the op amp of this kit as a secret, and the op amp’s pin definition is not as usual as common op amp such as: opa2134, tl072…etc. So be sure not to change this IC.Detail the full story ...
 
REG-317D dual power installed capacity of a single author of the report  by: mingtau
Let's take a look at the original PCB picture first.Detail the full story ...
 
large current rectifier + Kits of PRE volume control module (Sample pcb)+LM3875 by wind10  Translation: Google
Hard up again recently installed a LM3875, the use of CLC filtering method
Output signals with multi-core copper raised the purity of single-core silver line, I admit that was a novice and-opportunity, the whole line is not good,
In the eyes of many people should be considered a waste it! But layman and the novice DIY spoof is it!
Assembly after the completion of the audition, Personal feeling up from the low frequency of the LM4780 fitted to the down-to-earth and low , background and more quiet,
Individuals also liked the sound of the end of this, no wonder so many people playing 3875....

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Kits of PRE volume control module+LM4780 and even by wind10  Translation: Google
Had originally did not intend to sound audio DIY is a bother also ventures, but also somewhat recently suddenly hand itch, coupled with bad friends computer speakers,to take this opportunity to confuse the way friends do intend to upgrade themselves can take this training exercise, but also the original intention before a small group system, therefore, a search on the Internet some of the information, see the LM4780 is a two-channel power crystal parallel output and can play the parts do not need more, Ben there is still the boss with the PCB OP, two-channel multi-channel changes with the full home theater suitable for the needs of friends, so it is a decision, to prepare materials before GC on the Internet to collect more detailed information, consult the Internet the way the older generation to give guidance, the assembly only after all the extent of it, in this also grateful to skyboat, Ben large number of senior and the advice and learned a lot, originally only intended to use VR + LM4780 simple combination, and later increase the number of voices in order to allow adjustable RealAudio so will the volume control before the black gold medals to rank in the planning, in begin collecting the necessary parts found at the transformer is now up how so many ? ? ? Is really shocked, you should be more than doubled .... Detail the full story ...
 
Kits of input and output select control module by pass multi-purpose use of installed capacity author of the report by tris Translation: Google

Recently-User equipment to remove A2 (Dx) home, I asked Will to help him with a JP200, there have also just before the JP200 dx package, but the missing vacuum tube, he has to buy me Even if the assembly can help it-equipment, thought he put every other day sent from the vacuum tube, but there is a demand for dx JP200 BY PASS need to provide the audio amplifier theatres around the main channel through sharing of A2 and JP200 BYPASS Speakers, then think of this BEN large choice of two-channel input and output packages have independent control of two built-in output due What to do, is the largest telephone Taojiao BEN, the BEN done a great guiding the following modifications:

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Kits of REMO PRE volume control module_capacity report  by sam  Translation: Google   

Theme】【Kits of REMO PRE volume control module_capacity report   by sam

 

Kits of REMO PRE volume control module(TYPE 16+in & out select)
Schematic.
Part list.

PS: I installed the web page also details the process of   Y游DIY_PART5~~~『黑金牌遙控音量控制前級套件』組裝(Chinese)

 

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Kits of Power soft start control module(no lock SW) capacity report  by sam  Translation: Google

Kits of Power soft start control module(no lock SW) capacity report     by sam Kits of Power soft start control module(no lock SW)』The information is as follows:

Schematic.
Part list.
PS: The other two users can refer to the report of the installed capacity

Kits of Power soft start control module(no lock SW) Note installed ~  by botton

Kits of Power soft start control module(no lock SW) Note installed ~  by breaden_pchome   

PS: This group relief package boot, I was in my class after the TDA7294, users are interested, may be the next page to see a more detailed process

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Kits of Speaker protect module(err) capacity report  by sam  Translation: Google

Kits of Speaker protect module(err)the information is as follows:

Schematic.

Part list.

Kits of Speaker protect module Note installed by botton

PS: the black gold to protect speaker package (err), is in my class after the TDA7294, users are interested in, to the next page to see a more detailed process   DIY新手PART 2~~~TDA7294後級組裝(Chinese)

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Black Gold Power Module Kit using Nichicon KZ 10000uF/63V + MUR860  A DIY Report  by Sam  

This report is the capacity to take the whole double-bridge rectifier way to do that before because I have aac to dc power module KZ 1000uF/50V + MUR860 Capacity report  , 
This is why I installed the report would not installed as Part of the report, described it in detail.

PS: This group rectifier filter, I was in my class after the TDA7294, users are interested, may be the next page to see a more detailed process  DIY新手PART 2~~~TDA7294後級組裝(Chinese)
 

Detail the full story ...Translation: Google

 

Detail the full story ...Translation: housing

 

 
Theme】 【Kits of input and output select control module (Including the PRE AMP) capacity report by sam  Translation: Google  Full details
Theme】 【Kit of mini pga2310 include in/out select control module capacity report by sam  Translation: Google  Full details
mini PGA-2310 capacity report   by aircry  Translation: Google  Full details
ac to dc power module KZ 1000uF/50V + MUR860 Capacity report  by sam  Translation: Google  Full details
LM3875 standard power amplifier   by cya  Translation: Google  Full details

HiFiDiy ~NOS TDA1541 DAC~ Production record By steel  Translation: Google  Full details

A project that challenge myself (ALEPH-1.2) by biru translate:ackcheng Full details 
PGA-2310+BZLS by biru translate:ackcheng Full details 
8pin TO-99 OP to DIP adapter plate  ~assembly report ~ by steel  Translation: Google  Full details

JST socket playing fast lane  by ben   Translation: Google Full details

Dual Regulated Power Supply PCB increased version   by cya     Translation: Google   Full details

HiFiDiy ~TDA1543 (05 Commemorative Edition)~ Production record  by steel  Translation: Google  Full details

Remote LEACH150(PGA2310)    by cjr84   Full details
Filter-double to a single power supply   by palchiu    Translation: Google   Full details
Half of the assembly Pre-amplifiers(PGA2310)  by kshuang  Translation: Google   Full details
DZ ALEPH P balance of the whole package with volume control(PGA2310) package installed report  by Pengzy  Translation: Google  Full details
Multi-channel remote control before the assembly report(PGA2310)   by David_hsieh Translation: Google  Full details
Two-channel digital volume control upgrade kit installed report(PGA2310) by Martin Translation: Google  Full details
 
PGA-2310 digital volume control test Users report :
Test by Wang Hongji and ben
Testing equipment: Audio precision
Test date: March 2004
In order to test our current level before some of the basic data package, specially went to Changhua for a sound foreign foundry factories because their products are manufactured each has to go through Audio precision testing equipment to test and test reports listed.Test Content