have 2 in for repair with customer complaint of low gain. both amps apparently left on 24/7 for 13 years! looks like a busy day looking for faulty electrolytics....
Hi, I have a question: I recently bought a second-hand PC9501N amplifier. Both channels sound ok, but there is a difference of 3db between channels A and B, (according to the dB meter) and a difference of 0,5V between outputs (applying the same signal, despite of being in stereo, mono or bridge). No clipping or distortion. No shorts or open transistors. The power supply delivers the same voltage to the 2 channels. Why does this occur? Maybe I should adjust the bias? Thanks in advance
Привет у меня есть вопрос. Азъ хочу построить квадро систему. Можно-ли будет подключить 8 штук колонок, 6 ом 350 ватт Биварингом по 4 штуки? Hi I have a question. Az I want to build a quad system. Will it be possible to connect 8 pieces of speakers(monitors) 6 ohms 320 watts bivariated by 4 pieces per channel?
Amigo buenas exelente muy inteligente... Tengo una igual la fuente fue reparada y quedo con un problema que no le puedo alsar el volumen se proteje y empieza a cancaniar.me puede orientar ... 😢😢😔 gracias
Sir I have question... My amp Yamaha have trouble like yours....but after i repair, one month leter the amplifier broken again in the same case ( resistor 5w6,8ohm) ...the resistor open again....two time i change the resistor Can you help why resistor open...??? Thanks
Pour protéger contre les poussières et oxydation des composants il existe un filtre que l'ont ajoutes sur ouilles de la ventilation comme les filtres à hotte de cuisine il est prérable de choisir la couleur blanc si votre filtre devient grise il est temps de la remplacer tous ceci évite le désagrément
Well done. 1of the best amps on the market
I have 3 units of p7000s ..very good performance
I have 2 yamaha amplifier for years still working good
Do they work well with powerful sub woofers @@rodolfollaguno437
Whats that class ? AB or D?
ab
I would not have a clue, but find this type of video interesting to watch...cheers :-)
its my hobby - fixing audio equipment :)
have 2 in for repair with customer complaint of low gain. both amps apparently left on 24/7 for 13 years! looks like a busy day looking for faulty electrolytics....
Excellent and informative video!
Hi ....ive a p3500 thats just stoped working...well it turns on but no sound out...how can i get in touch with u?
Am looking for the power supply board for yamaha p5000s
They can be repaired easy enough what is wrong with yours - where are you based? I fix them all the time
Công suất 4Ohm/1 kênh là bao nhiêu W?
Hi, I have a question: I recently bought a second-hand PC9501N amplifier. Both channels sound ok, but there is a difference of 3db between channels A and B, (according to the dB meter) and a difference of 0,5V between outputs (applying the same signal, despite of being in stereo, mono or bridge). No clipping or distortion. No shorts or open transistors. The power supply delivers the same voltage to the 2 channels. Why does this occur? Maybe I should adjust the bias?
Thanks in advance
high ESR in the preamp capacitors
Привет у меня есть вопрос. Азъ хочу построить квадро систему.
Можно-ли будет подключить 8 штук колонок,
6 ом 350 ватт Биварингом по 4 штуки?
Hi I have a question. Az I want to build a quad system.
Will it be possible to connect 8 pieces of speakers(monitors)
6 ohms 320 watts bivariated by 4 pieces per channel?
I have a PS3500 that powers up but doesn't show any signal going to it, and nothing from the outputs! Could this be the same issue??
no - P3500S have a torroidial transfromer. Your issue sounds more like a bad opamp or muting circuit issue - easy to trace and fix.
@@denbighlad70 Cool, thanks for he info! Where abouts are you based btw, just in case I can't fix it myself!? :)
Yamaha repairing wala
Repairing ka naya board Nahin ho to naya 1 PC Bhi audio vote chahie
Amigo buenas exelente muy inteligente... Tengo una igual la fuente fue reparada y quedo con un problema que no le puedo alsar el volumen se proteje y empieza a cancaniar.me puede orientar ... 😢😢😔 gracias
BLOWN TRANSISTOR
Am very sorry for the let reply Bro but Am in Uganda please or can you get me a all board?
Do you know what Prince and Nigeria...
He keeps emailing me saying he needs help with laundering money 🤔
Sir
I have question...
My amp Yamaha have trouble like yours....but after i repair, one month leter the amplifier broken again in the same case ( resistor 5w6,8ohm) ...the resistor open again....two time i change the resistor
Can you help why resistor open...???
Thanks
blown igbts in psu
Sama yg p9000 bagus mana yg maz
Par chanel watts output ?
750 watts 8 ohm 1100 watts and 2200 bridged
Alamat servisnya dimana
Se give me number
Pour protéger contre les poussières et oxydation des composants il existe un filtre que l'ont ajoutes sur ouilles de la ventilation comme les filtres à hotte de cuisine il est prérable de choisir la couleur blanc si votre filtre devient grise il est temps de la remplacer tous ceci évite le désagrément
no do not do that. A filter will restrict the air flow and cause overheating
I thought these had tordial transformers 🤔
The P2500S and P3500S have them, if you see one in a 5000 or 7000 then you are looking at a chinese clone. lots on youtube of the clones
good