Fixing Someone Else's Mess PART 4 Biema Alpha Line Array Amplifier Repair NO BASS : No Schematics
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- Опубликовано: 18 ноя 2024
- Here is the conclusion to another ongoing repair- the Biema Alpha Array amplifier with some botched previous work. I fixed the major problem with the Class G Voltage switching, then the burnt out components only to find the amplifier worked but I had no bass response. Some suggested the amplifier was oscillating at high frequencies... let's see if that was correct
Part 1 : • Biema Alpha Line Array...
Part 2 : • Fixing Someone Else's ...
Part 3 : • Fixing Someone Else's ...
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Thank you
Richard
With out a schematic the Repair hunt is on, Caps go Short, Resisters go Open, Other Components lead to head scratching, But Richard Finds ways to test or replace them all, Till it all work Fine again, So now the customer is happy and Richard is shore it's a REPAIR JOB WELL DONE.
Resist writing Resisters
They are RESISTORS ORS not ERS
When you pay attention and learn to PRONOUNCE the words correctly
you will then be able to spell them correctly
RESIT ORS
not
RESIT ERS
Repeat the word one hundred times and you will learn
The emphasis is on OR and not ER
Your knowledge of the English Language is below third grade level
Neither have you learned how to format text - writing rules or
how and why to use paragraphs .
Did your mother send you to dog school or are you genetically damaged
or mentally incompetent ?
Ask your uncle ?
Time you educated yourself and started learning to pay attention to detail.
There were people 500 years ago who were far better educated than YOU
Keep that in mind - You have not made any progress.
Now it has been brought to your attention -
Fix it - fix the scholastic and mental damage -
Be teachable and you will make progress.
Good luck and good bye
No need to replay -
My time is too valuable and not recoverable to be reading excuses.
I have more important matters to attend to.
You are a pro, no doubt, and you help others to go right through the wall of ignorance/inexperience, by showing things practically and logically!
@33:15 shout out to the Mrs. in the background 😂 great video but that was the best part..
Forget the fixing and tracking down the fault and check out the dancing. 😁
Yay Julie grooving away
You guys spotted something I didn't lol. Yeah Julie is a northern soul fan too 🤩
@@LearnElectronicsRepair Ha she video bombed you without you knowing. 😂
having been in the game for over 35 yrs, I catch myself saying "don't go there" but you do and it tends to workout great stuff
Brilliant fault finding, well done Richard 😃
Awesome job Rich
Electronic repairs is like being a detective. Sometimes you go down the wrong road only to find a dead end, then you find another dead end and after some time you find the problem by a process of elimination. Then you say to yourself "if I'd only gone down that road first I could have finished the job in 10 minutes".
Well done.
Great work thanks very much
Loved the Northern Soul track David & The Giants - Ten Miles High. Interesting video.
I use that track as standard for testing as it is one of the few I have that has no copyright problems. Plus it's a great song.The other I often use is THP Orchestra Too Hot For Love, which was big at the Ritz all dayers and the Mecca back in '77 but I mainly use that on my other channel
Heya, nice wen you have a second 1 to compare and exchance nice repair
U're the master ...hat!
The advent of lead free/reduced lead solder has created the potential for poor connections.
Having dismantled failed LED lamps I have found not only blown single LED's but also failed solder joints on the primary mains wire connection to the driver PCB
its a nightmare after soldering for over 35 yrs the lead free catches me out
@@johnmellor6065 Lead free solder was obviously invented by someone who doesn't actually do any soldering on a day to day basis. I rest my case 🤪
It goes to show the value of being systematic and keeping notes! This job was a dog though yeah? Comparing the two units and exchanging parts was useful but in the end it was the old peepers that spotted the bad component. Lucky it wasn't the Professional Nonsense Module!
I gather you put an inordinate amount of time into the job for what it will pay, but you _will_ get paid, the client will be pleased to get his amplifiers back in good order, and your reputation as Electronics God of Gran Canaria is preserved for another day. Well done.
Yeah a lot of work went into this one but then some others are simple. Check the Tri-amp 2x class D + class A/B active speaker cab repair coming later this week 😉
👏👍
Reputation is key, you may lose abit of income on some jobs, but make it back on others, it is frutrating take jobs on without knowing the time schedule to repair them, and then replacing parts at the beginning at your own cost, but hey! that`s the job. sterling job, simple things catch out.
It is always a crapacitor !!!