Comments on: Third Visit Of PHILIPS PRESTIGE 556 Radio With Complaint Of Low Gain https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Thu, 05 Dec 2024 09:07:50 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Ramachandran P V https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-440383 Thu, 05 Dec 2024 09:07:50 +0000 https://jestineyong.com/?p=33881#comment-440383 I was a Radio/TV technician from 1976 to 2005. Stopped doing repairs after my regular job requirements wouldn't leave me much time for electronics repairs.

I have a Philips Prestige 556 Radio which was lying unused for a couple of decades. After my retirement I thought of using it. When I switched it on there was a very high motorboating sound which is not controlled by the volume control. I changed all the electrolytic capacitors in power supply section and audio section. Changed the audio driver transistor. When I disconnect the audio section from the detector section the motor boating stops. Despite repairing hundreds of Radios and TVs, this problem has made me very humble. It would be of great help if you could provide me with the circuit diagram of Philips Prestige 556.

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]]> By: Parasuraman S https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438818 Sat, 16 Nov 2024 06:34:15 +0000 https://jestineyong.com/?p=33881#comment-438818 Thanks!

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]]> By: Yogesh Panchal https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438751 Fri, 15 Nov 2024 17:02:51 +0000 https://jestineyong.com/?p=33881#comment-438751 Good Fix! Sir,

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]]> By: Parasuraman S https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438299 Sat, 09 Nov 2024 13:37:07 +0000 https://jestineyong.com/?p=33881#comment-438299 In reply to Waleed Rishmawi.

There was an advertisement by Onida for CRT TVs when they marketed in India many years back: Neighbor's envy, owner's pride! I remembered that (LOL) Many thanks for your continued encouraging comments, my dear friend! It values a lot!

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]]> By: Waleed Rishmawi https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438288 Sat, 09 Nov 2024 09:37:30 +0000 https://jestineyong.com/?p=33881#comment-438288 another successful surgery done and was sent to the intensive care unit for healing...LOL. very good job my friend. I envy you for having such patients to work on such devices and I appreciate you sharing with us this great work. have a blessed day

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]]> By: Parasuraman S https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438250 Sat, 09 Nov 2024 03:25:40 +0000 https://jestineyong.com/?p=33881#comment-438250 In reply to Mark J.

Many thanks, dear Mark!

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]]> By: Parasuraman S https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438249 Sat, 09 Nov 2024 03:25:22 +0000 https://jestineyong.com/?p=33881#comment-438249 In reply to Albert van Bemmelen.

Yes, I understand. Shall give a diagram later if and when it comes back for a service! Thanks for your expert comments, dear Albert!

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]]> By: Mark J https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438222 Fri, 08 Nov 2024 19:57:21 +0000 https://jestineyong.com/?p=33881#comment-438222 Parasuraman great job on the repair.

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]]> By: Albert van Bemmelen https://jestineyong.com/third-visit-of-philips-prestige-556-radio-with-complaint-of-low-gain/comment-page-1/#comment-438178 Fri, 08 Nov 2024 12:43:32 +0000 https://jestineyong.com/?p=33881#comment-438178 Although you tried to explain adding a ferrite core with several capacitors to limit any AC noise that still might interfere with any clear reception and took some photos of the result as well, it sadly never is as clear as a drawn circuit of it would have been!

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