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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Sony PVM-1354Q monitor focus
Hi all,
I have a Sony PVM-1354Q video monitor that has gone out of focus. There is no external focus control. There is a pot on the board that attaches to the socket for the CRT that is labeled "focus", but it appears to have minimal effect. Any ideas as to what I should check? I am an electrical engineer, so I can do this without killing myself, but don't claim to be a video tech. We have another one we are using, but I hate to scrap this unit if it is salvagable. Any advice? Thanks for any ideas, AL |
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On 26 May 2005 07:52:26 -0700, "
wrote: Hi all, I have a Sony PVM-1354Q video monitor that has gone out of focus. There is no external focus control. There is a pot on the board that attaches to the socket for the CRT that is labeled "focus", but it appears to have minimal effect. Any ideas as to what I should check? I am an electrical engineer, so I can do this without killing myself, but don't claim to be a video tech. We have another one we are using, but I hate to scrap this unit if it is salvagable. Any advice? Thanks for any ideas, AL Is there a pot on the flyback? That's where the focus control is normally located. If not, then either the focus voltage is wrong, or the CRT is bad. Andy Cuffe -- Use this address until 12/31/2005 -- Use this address after 12/31/2005 |
#3
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Andy Cuffe wrote: On 26 May 2005 07:52:26 -0700, " Is there a pot on the flyback? That's where the focus control is normally located. If not, then either the focus voltage is wrong, or the CRT is bad. Andy Cuffe -- Use this address until 12/31/2005 -- Use this address after 12/31/2005 There is no control on the flyback. Is there any way to tell if it is the CRT, or is it just process of elimination? Thanks for the help, AL |
#4
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On 27 May 2005 04:33:01 -0700, "
wrote: Andy Cuffe wrote: On 26 May 2005 07:52:26 -0700, " Is there a pot on the flyback? That's where the focus control is normally located. If not, then either the focus voltage is wrong, or the CRT is bad. Andy Cuffe -- Use this address until 12/31/2005 -- Use this address after 12/31/2005 There is no control on the flyback. Is there any way to tell if it is the CRT, or is it just process of elimination? Thanks for the help, A The focus pot is on the crt socket board. Chuck |
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