Tracks Found Cut In Philips AZ1047/94 CD Sound Machine
This set belongs to my school classmate and was brought with the complaint that it was dead. After opening the covers, I dismantled the set completely and did a thorough cleaning up.
While doing retouch of the dry solders, I saw that the power supply pins were detached from the PCB and the track was also cut underneath. So, wired it up and soldered it properly.
I also scrutinized the other PCBs and replaced all the electrolytic capacitors as the ESRs were found to be out. Completed the patch up of dry solders on the other PCBs as well.
I lubricated the connectors and also the rails of the sliding motor. After this, when I checked up, the set was working perfectly well.
Mission accomplished and satisfaction got collected!
This article was prepared for you by Parasuraman Subramanian from India. He is 72 years old and has more than 30 years’ experience in handling antique equipment like Valve Radio, Amps, Reel Tape Recorders and currently studying latest tech-classes conducted by Kerala State Electronics Technicians’ Association. He has done graduation in BBA degree, private diploma in Radio Engineering and retired as MD of a USA company. Presently working as Consultant to Hospital and other institutions.
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You may check on his previous article on Kreft Valve Radio Repair
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Albert van Bemmelen
September 3, 2021 at 1:08 pm
You certainly always make sure that you do not miss anything that would make the device come back for repair on a previous fix!
Parasuraman S
September 3, 2021 at 5:25 pm
Many thanks for your comments and encouragement!
Robert Samuel
September 3, 2021 at 1:59 pm
What ESR meter do you use? Obviously you are getting good readings from your meter. Thanks in advance.
Parasuraman S
September 3, 2021 at 5:26 pm
This ESR Meter was bought from Jestine Yong, a few years back. Works as good as new even now!
Waleed Rishmawi
September 6, 2021 at 5:36 pm
cold soldering joints and broken traces is what i live for...LOL. thanks for sharing. have a blessed day
Parasuraman S
September 7, 2021 at 12:11 am
Ha! Ha! Many thanks for your comments!
Yogesh Panchal
September 8, 2021 at 3:51 pm
Good Job! Sir,
Parasuraman S
September 8, 2021 at 11:20 pm
Many thanks for your comments, Yogesh bai!
Subramanian
August 6, 2024 at 12:02 am
Wow! You are an inspiration at 72! I opened the door of the cassette player as my cassette reel was stuck. There is a pin like object with a loop which has come out (the part was most likely attached to the door). I don't know where and how it goes but after I put back the door and press the eject button, the door does not open with the usual spring action. I am able to open the door by using a screw driver. I could send you a photograph. Can you help? It is the same model Philips AZ1047/94.