T.amp TSA 4-1300 Power Amplifier Issue: Not Turning On, Red Diode Flashing, No Visible Damage

Matek920605 69321 346

Treść została przetłumaczona

Zobacz oryginalną wersję tematu

Reply | New topic

#31 18277808 14 Nov 2019 16:14

Matek920605 Matek920605

Level 10
» | Topic author Helpful post? (0)

Post #31
18277808 14 Nov 2019 16:14

I am sending, only IR2100S, IRGP etc. are removed

Attachments:

20191114_155639.jpg Download (6.07 MB)

20191114_155633.jpg Download (5.86 MB)

20191114_155626.jpg Download (5.6 MB)

20191114_155551.jpg Download (1.08 MB)

20191114_155531.jpg Download (1.58 MB)

20191114_155332.jpg Download (5.28 MB)

20191114_155433.jpg Download (1.56 MB)

20191114_155314.jpg Download (1.74 MB)

20191114_155219.jpg Download (1.58 MB)

20191114_155213.jpg Download (1.65 MB)
ADVERTISEMENT
#32 18277898 14 Nov 2019 17:16

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #32
18277898 14 Nov 2019 17:16

I would like to add that after removing all damaged elements, i.e. {IR2100S x2, IRGP x4, rectifiers} - one ss heat sink
one complete channel, I went through all the diodes marked EF8, resistors, capacitors, literally everything that is on the board - this time it turns out that everything else is working, i.e. capacitors, "EF8" diodes, etc.
#33 18278464 14 Nov 2019 21:08

INtRO_Tech INtRO_Tech

Level 14

» | Helpful post? (+1)

Post #33
18278464 14 Nov 2019 21:08

Hello, and the smaller T4 and T5 diodes with resistors are you also working? It's about this set at the output of the IR2110S, where there is key control (two sets per transistor from one IR), check, because I have lost resistors with diodes at this point.

I was also looking for IGBT4066D equivalents and it is difficult to choose something cheaper ...

Regards
#34 18279020 15 Nov 2019 08:16

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #34
18279020 15 Nov 2019 08:16

With these t4 diodes and these resistors, most of them, when checked with a diode meter, showed a value of about 500, on some it did not show anything, but there is also no puncture.
#35 18279725 15 Nov 2019 16:38

Anonymous Anonymous

Level 1

» |

Post #35
18279725 15 Nov 2019 16:38

Hi. U9 layout? What is this model. And what elements are under a small heat sink near the capacitors?
#36 18279744 15 Nov 2019 17:21

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (+1)

Post #36
18279744 15 Nov 2019 17:21

U9 chip: 72POZEAG3

Added after 30 [minutes]:

There is a rectifier bridge under the small heat sink
ADVERTISEMENT
#37 18280283 15 Nov 2019 20:26

Anonymous Anonymous

Level 1

» |

Post #37
18280283 15 Nov 2019 20:26

Not only that, there is also a la 'transistor / triac.
#38 18280781 16 Nov 2019 03:19

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #38
18280781 16 Nov 2019 03:19

Yes, it is, these components are working
#39 18280922 16 Nov 2019 09:42

Anonymous Anonymous

Level 1

» |

Post #39
18280922 16 Nov 2019 09:42

And how is the condition of these puzzling EF8s you are nuts? I think it is a fast diode (schottky) at about 1kV and 1 OR 2A, it depends on the size. Often in the viper22a applications, the HER108, FR107 smd version is used. From the photos it looks like there is one diode per winding. Something like this diagram for SMPS:

.
#40 18281247 16 Nov 2019 18:50

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #40
18281247 16 Nov 2019 18:50

EF8 diodes are all functional, only the smaller ones marked T4 and H5 are damaged, about 8-9 pieces in total show very low values or are punctured.

Added after 2 [minutes]:

There are a lot of these small "T4" diodes on the entire board, but only those that are connected to the IRGP, ir2100s are damaged

Added after 3 [hours] 36 [minutes]:

I am still wondering about the element marked on the board as "L10". The tester shows it as a 77.6 ohm resistor, but the meter is a breakdown

Added after 1 [hours] 41 [minutes]:

Schottky diodes are the ones marked T4 and H5.
ADVERTISEMENT
#41 18283025 17 Nov 2019 11:00

Anonymous Anonymous

Level 1

» |

Post #41
18283025 17 Nov 2019 11:00

L10 is a 1mH coil marked 102. When wound with a wire, it will have a short circuit (it won't break). all diodes in this converter are schottky, because the voltage conversion takes place at a frequency of several dozen kHz. There are simply some for higher voltage like EF8 (for rectified mains voltage), and others for lower voltage like those with drivers and generator. H5 is a zener diode, it can be, this is what the search engine shows, the next problem is what voltage?
#42 18283286 17 Nov 2019 13:03

Matek920605 Matek920605

Level 10
» | Topic author Helpful post? (0)

Post #42
18283286 17 Nov 2019 13:03

I found a table with the markings of smd diodes, housing types, etc., the designation H5 sod123 is supposed to be 15v

Added after 3 [minutes]:

H5 sod-123

Attachments:

Screenshot_20191117-130147_Drive.jpg Download (512.44 KB)
#43 18283332 17 Nov 2019 13:21

Anonymous Anonymous

Level 1

» |

Post #43
18283332 17 Nov 2019 13:21

I've seen this table too. If one diode of this type has survived in this converter, it can be experimentally checked whether it is a zener and what the voltage is.
#44 18283452 17 Nov 2019 14:18

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #44
18283452 17 Nov 2019 14:18

There is also a diode t4 and h5 in the vicinity of this "L10" coil, both of them are operational. There are quite a lot of these LEDs across the board
#45 18283657 17 Nov 2019 15:34

Anonymous Anonymous

Level 1

» |

Post #45
18283657 17 Nov 2019 15:34

D212 is on the power supply of viper22 pin4 is it the H5 diode?
ADVERTISEMENT
#46 18283695 17 Nov 2019 15:49

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #46
18283695 17 Nov 2019 15:49

D212 - this is the T4 diode
#47 18283722 17 Nov 2019 15:59

Anonymous Anonymous

Level 1

» |

Post #47
18283722 17 Nov 2019 15:59

So which one is h5 there?
#48 18283969 17 Nov 2019 17:31

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #48
18283969 17 Nov 2019 17:31

D752 - here, for example, is the H5 diode
#49 18285925 18 Nov 2019 16:37

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #49
18285925 18 Nov 2019 16:37

The TRIAK under that little heatsink where the bridge rectifiers are is BTA41-600B, 600v 40A. I checked with the tester and it is damaged, however
#50 18285996 18 Nov 2019 17:18

INtRO_Tech INtRO_Tech

Level 14

» | Helpful post? (0)

Post #50
18285996 18 Nov 2019 17:18

Hello,

Desolder the triac to check, in the motherboard it shows as if it had a short circuit. I was the same.
#51 18286180 18 Nov 2019 18:43

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #51
18286180 18 Nov 2019 18:43

Well, I checked it under the tester, which was desoldered, it shows a resistor instead of the triac
#52 18357246 23 Dec 2019 18:45

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #52
18357246 23 Dec 2019 18:45

Hello
I just received the last parts of the amplifier. The amplifier is assembled, I fired it, luckily nothing exploded, nothing was burnt. However, the fans do not start and the LEDs on the front panel were barely lit at first, and then they began to go out slowly. it seems to me that it is the fault of the rectifier bridges, measuring them earlier as if everything was fine
#53 18357872 24 Dec 2019 00:02

398216 Usunięty 398216 Usunięty

Level 43

» | Helpful post? (+1)

Post #53
18357872 24 Dec 2019 00:02

Matek920605 wrote:
I think it's the fault of the rectifier bridges
You're right - you think ...
#54 18358096 24 Dec 2019 09:24

Anonymous Anonymous

Level 1

» |

Post #54
18358096 24 Dec 2019 09:24

Hi. Read post No. 14 two converters small and large, the LEDs shine dimly and then go out. There was still an explosion there. Short circuit, heavy load? when the main inverter is started? (in fact, it cannot even start). Windmills are a matter of temperature, they can fire over time. PWM generator sg 3525 have you replaced? Or just drivers? With such a repair without a diagram, you need to carefully analyze the presence of each user agency and create a diagram based on what is available on the network. All converters work similarly, they use the same US elements. Whether they are on mosfets or on IGBTs is a small difference.
#55 18359181 25 Dec 2019 05:31

Matek920605 Matek920605

Level 10

» | Topic author Helpful post? (0)

Post #55
18359181 25 Dec 2019 05:31

SG3525 generator replaced, drivers also. Exactly it turns out that the main converter did not start. When turning on the equipment, practically nothing happens, only the first time the LEDs were turned on, they lit up after some time and slowly faded out. You couldn't hear the typical switching. The IRGP transistors were warm.
#56 18362530 27 Dec 2019 13:10

INtRO_Tech INtRO_Tech

Level 14

» | Helpful post? (0)

Post #56
18362530 27 Dec 2019 13:10

It will not bring anything to the topic, it will only be a curiosity - the "original" of this amplifier is the Leicozic DP41200 from China. I was terribly surprised by the places for potentiometers and the functioning clip / signal diodes covered with a heat-shrink, and the general guerrilla warfare inside.

Regards
#57 18363248 27 Dec 2019 19:31

Matek920605 Matek920605

Level 10
» | Topic author Helpful post? (0)

Post #57
18363248 27 Dec 2019 19:31

I reviewed the replaced elements again, I corrected February on Ir2110s (one pin was not prepared. I put everything together and turned on. This time after about 4 seconds you can hear the transformer turning on, the LEDs on the front panel do not turn on. Waiting a few seconds, the LEDs shown below on the motherboard they turn off, the transformer is no longer audible, after about 2-3 seconds the diodes light up again and you hear that the transformer is also working, but after a while it turns off again and again. Nothing heats up, nothing fires.

Attachments:

20191227_192406.jpg Download (1.06 MB)
#58 18363399 27 Dec 2019 20:29

Anonymous Anonymous

Level 1

» |

Post #58
18363399 27 Dec 2019 20:29

I suggest DC measurements, if you say that something works there, also check if there is sg2535 DS power available in the network, a small converter is on viper22, you can also measure what is happening there according to DS. Where do these diodes inside have power?
#59 18364408 28 Dec 2019 11:47

Michel424 Michel424

Level 14

» | Helpful post? (0)

Post #59
18364408 28 Dec 2019 11:47

Reading the topic, I wonder if it is sometimes better to change the power supply of this power amplifier completely, i.e. to make converters from scratch using parts from this converter? Generally, a lot of people have a problem with these tips and while the tips themselves rarely fail, their power supply is the biggest problem A and there are no diagrams to cover everything A pity because the end is quite popular due to the price and power
#60 18364932 28 Dec 2019 16:16

INtRO_Tech INtRO_Tech

Level 14

» | Helpful post? (0)

Post #60
18364932 28 Dec 2019 16:16

I was also thinking about it, but you would need a very powerful converter to power this end, the modification with a transformer is completely out of the question due to the weight and size.

All in all, only a part of the "HOT" power supply, i.e. the 230V side, would be to be made, only two pins per winding go to the transformer.

Regards
Create an account, log in and become active in a forum and ads will not appear. You will receive points by participating in discussions.
Join this discussion.

Install the application

Reply | New topic

Report a violation of the law

Topic summary

The discussion revolves around issues with the T.amp TSA 4-1300 power amplifier, specifically its failure to turn on, indicated by a flashing red diode and no visible damage. Users share their experiences troubleshooting the amplifier, including checking the power supply, replacing damaged components like IGBTs, IR2110 drivers, and capacitors, and the challenges of finding schematics. The conversation highlights the importance of proper voltage levels, the need for fuses to prevent damage, and the potential for modifications to improve reliability. Several users report successful repairs after replacing critical components and adjusting the power supply configuration.
Summary generated by the language model.