Maintenance of various types of electrostatic amps such as: maintenance STAX BHSE HEV90 Daao HE1 Daao 2 Shangri-La
Liquid gold Cavalli Audio LL2T, HeadAmp Blue Hawaii, HeadAmp Aristaeus, RSA Emmeline II A-10, Single Power ES1, mal valve Head Amp three Mk4 and various electrostatic amps produced by STAX......!
1. The electrostatic amp circuit is powered by a high voltage. It has been used for a long time and is not well protected. Dust in the machine can easily cause short-circuit damage to the machine. The machine is used in a dusty and ventilated place.
Second, the maintenance of the machine will basically be cleaned and dry, and keep the original machine state!
STAX common problems: no sound when starting up, the red light does not turn to green when starting up, the volume of one channel is low, etc. Some electrostatic amplifiers have a Bias voltage output of more than 100 volts, while the electrostatic earphones use more than 580 volts.
The maintenance rules are as follows:
1. Please inform the failure phenomenon in detail first, if we can solve it by ourselves, we will recommend the method.
2. We will roughly estimate a repair plan, price, and time required based on the failure phenomenon, and confirm with friends again after actual contact and understanding. If you have any objections, we can send it back as received, and you need to pay the return postage, no other costs.
3. When you receive your faulty equipment, find out the fault and take a photo for you to confirm. If there is any component damage, you can also tell you, or you can buy it yourself and send it to me to help you repair it.
4. The machine repaired by our office will be provided with a 6-month warranty for the same failure.
3. The state of the board before the repair, and the product that has been repaired;
![](https://img.alicdn.com/imgextra/i4/359407399/O1CN01EDwqbR24Wn588Abw6_!!359407399.jpg)
4. Clean up the repaired motherboard;
![](https://img.alicdn.com/imgextra/i3/359407399/O1CN01Pv51um24Wn50KI5AH_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i4/359407399/O1CN01DD0RLf24Wn55juQ0k_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i4/359407399/O1CN013DSkzO24Wn2aJckhy_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i4/359407399/O1CN0124Wmww8vbhqCHcA_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i1/359407399/O1CN01lxq4lo24Wn2vgW6eS_!!359407399.jpg)
STAX SRM-600 resistance is more open;![](https://img.alicdn.com/imgextra/i2/359407399/O1CN01g6H9bP24Wn55VgsLz_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i4/359407399/O1CN01OGYSfJ24Wn540juy8_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i1/359407399/TB21IAEihxmpuFjSZFNXXXrRXXa_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i1/359407399/TB2o8hlikqvpuFjSZFhXXaOgXXa_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i1/359407399/TB20PJ0iilnpuFjSZFgXXbi7FXa_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i3/359407399/TB2B2wwb4RDOuFjSZFzXXcIipXa_!!359407399.jpg)
There are many phenomena of aging and deterioration of HEV90 Daao capacitors;
![](https://img.alicdn.com/imgextra/i3/359407399/O1CN01zHRycR24Wn2x6jM7f_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i3/359407399/TB2Qvl1idRopuFjSZFtXXcanpXa_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i4/359407399/TB2FyrOgMJkpuFjSszcXXXfsFXa_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i3/359407399/TB2fu2SgSXlpuFjy0FeXXcJbFXa_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i2/359407399/TB2qN64gSBjpuFjSsplXXa5MVXa_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i3/359407399/O1CN01odqm7W24Wn2nyN0xX_!!359407399.jpg)
![](https://img.alicdn.com/imgextra/i4/359407399/O1CN01gbYMCn24Wn4ww7yZv_!!359407399.jpg)