Comments on: Musical Keyboard Repaired

By: Yogesh Panhchal

Yogesh Panhchal — Fri, 05 Jan 2024 12:13:24 +0000

Good job! Waleed,
Most of commercial customers have this procedure of payment receipt.it is always safe to take part advance payment.because some time peoples change their mind because they have not paid us anything & material you purchased becomes waste.

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By: Waleed Rishmawi

Waleed Rishmawi — Fri, 05 Jan 2024 07:09:23 +0000

In reply to Babu M S.

Babu: is it fluctuating with a load or without? since you replaced all that and still have issues, I would checked the smd components and the secondary section of the power supply. have a blessed day

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By: Parasuraman S

Parasuraman S — Thu, 04 Jan 2024 07:33:54 +0000

In reply to Babu M S.

Is it oscillalting even when the load is given? Then, the filters in the seccondary might have to be replaced too. Check all components from run DC circuit to output, such as resistance value, capacitance value etc. Check for any leaky diode or transistor too.

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By: Parasuraman S

Parasuraman S — Thu, 04 Jan 2024 07:31:08 +0000

In reply to Waleed Rishmawi.

Well, OK, dear!

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By: Babu M S

Babu M S — Wed, 03 Jan 2024 17:03:25 +0000

Good fix and given life for the keyboard.I am facing one problem in audio set LG make. The power supply board smps outputs were 21 volts and 22 volts. both the outputs fluctuvates from 19 volts to 21 volts.Main filter capacitor voltage shows 324 volts.I have replaced optocoupler, filter capacitor, and power ic 1790A(smd type). Checked all the resistance value,found ok.It is very small power supply board, brand new.please help me to solve the problem.

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By: Waleed Rishmawi

Waleed Rishmawi — Wed, 03 Jan 2024 12:46:45 +0000

In reply to Robert R Spoon.

Robert: the deposit pay does not work well in my cournty. I always inform the customer about estimate fees in case the machine was not fixed or we did not agree on the repair cost. I ask the customer to sign a paper to pay as soon he pick up the devie and if the device was left in my shop for more than two weeks I have the right do whatever I like with the devie. so far I did not have any serious issue with my customers. have a blessed

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By: Waleed Rishmawi

Waleed Rishmawi — Wed, 03 Jan 2024 12:42:03 +0000

In reply to Parasuraman S.

Parasuraman: thanks man. the adapter was damaged beyond any repair and if i want to repair it, it would cost a lot for the customer so the best was to get a new one which did not cost that much. it is about working smart not working hard.have a blessed day.

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By: Waleed Rishmawi

Waleed Rishmawi — Wed, 03 Jan 2024 12:39:21 +0000

In reply to B. Scott.

B.Scott: thanks man. how would you do the payment differently? usually I get paid once the device is repaired and that is about two or three days tops. I let them sign a paper to pick up as soon as possible and after two weeks time if the device was not picked up by the customer I have the right to do whatever feel like with the device. so far it is working fine. have a blessed day

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By: Waleed Rishmawi

Waleed Rishmawi — Wed, 03 Jan 2024 12:36:36 +0000

In reply to Albert van Bemmelen.

Albert: the adaptor was damaged beyond repair otherwise I would have repaired it. have a blessed day

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By: Robert R Spoon

Robert R Spoon — Tue, 02 Jan 2024 16:37:35 +0000

Waleed, I have done hundreds of repair jobs like this for the schools and colleges in my area and have 100% success rate on getting paid for the job even though it takes a couple of weeks in most cases. On COD customers I ask for a deposit when the equipment is dropped off so I know they have some investment already. Your diagnosis and repair were spot on and I know your customer was thrilled to have it back working again. Great Job!

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