UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Electrical · 21st Jan 2017, 9:11 pm

Hello Skysat2
Thank you for the photo showing the missing castellation. From checking through all the different revisions of the PM5544 I am beginning to think that the fault is further back on Unit 4 Vertical Divider PCB. However this board has been modified and revised on a number of occasions. Would you take a picture of your Unit 4 PCB on both sides so that I can determine which revision is fitted to your unit and I will post the relevant service information, as the timing for the divide by 16, centre line and circle start stop all come via Unit 4?
Regards Stan.

21st Jan 2017, 9:11 pm	#49
Electrical Hexode Join Date: Jul 2008 Location: Gateshead, Tyne & Wear, UK. Posts: 336	Re: Philips PM5544 Faulty Hello Skysat2 Thank you for the photo showing the missing castellation. From checking through all the different revisions of the PM5544 I am beginning to think that the fault is further back on Unit 4 Vertical Divider PCB. However this board has been modified and revised on a number of occasions. Would you take a picture of your Unit 4 PCB on both sides so that I can determine which revision is fitted to your unit and I will post the relevant service information, as the timing for the divide by 16, centre line and circle start stop all come via Unit 4? Regards Stan. __________________ Junk accumulates to fill the space available.