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The 9200 --:-- clock problem. |
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#326 |
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Forum Member
Join Date: Feb 2013
Posts: 3
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If I attach the HD to my computer, is there a way I can backup the good recordings before attempting a re-format?
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#327 |
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Forum Member
Join Date: Nov 2008
Posts: 271
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Quote:
If I attach the HD to my computer, is there a way I can backup the good recordings before attempting a re-format?
\there is a lot of useful info that may help you. |
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#328 |
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Forum Member
Join Date: Jun 2006
Location: south of Glasgow, Blackhill tr
Posts: 29
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My pvr9200 stopped recording timer programmes.It was the clock probem as it was showing 4 dashes and a dot in the centre. It is one of the early ones.
I tried cleaning the white film from the board again and again using Maplins pcb cleaner. Alas it did not work so I tried soldering the connections to the super capacitor and crystal with a miniature soldering iron Success it worked first time. I can only assume that the film had somehow affected the soldered joints, although they looked perfect under very high magnification. The moral is dont give up easily, i cleaned the board at least 12 times before soldering. The clock does work without the hard drive fitted. |
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#329 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Quote:
.....
I tried cleaning the white film from the board again and again using Maplins pcb cleaner. Alas it did not work so I tried soldering the connections to the super capacitor and crystal with a miniature soldering iron Success it worked first time. ..... |
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#330 |
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Forum Member
Join Date: May 2013
Posts: 1
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Hello everyone, I would like to add my thanks to the heap belonging to Big-les.
My 2003 vintage Hummy 9200T lost its standby clock display a couple of days ago, and researching the fix quickly brought me here. Some household meths (the purple stuff) and a few cotton buds later, the display was back in time to record Sunday night's footy, proving the recording system wakes properly from standby. During cleaning with wet buds the meths seemed to dissolve a coating which was almost invisible at first when dry, but which showed up as patches of a dark matt residue when the meths evaporated before the cleaning was complete. It made it very easy to see where to carry on with further washing. I guess the colour of the residue was produced by a combination of the dye in the meths, as well as dust and felt tip pen ink mixing with the coating as it dissolved. Eventually the meths dried without dark streaking and wiping with dry buds left a shiny surface. At that point I thought it was worth trying the reassembly and all went well. If I may, I'd like to add a little more; Big-les' investigative skills are magnificent and his level of support displays modesty and generosity. Admirable. Thank you also to all the other contributors here that helped me understand this issue so easily and arrive at such a speedy fix. Best wishes, Plodder. |
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#331 |
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Forum Member
Join Date: Aug 2004
Location: Redditch, England
Posts: 8
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Caught the disease
Looks like my mine has finally caught this disease, from the very first post
"A tutorial on how to change the board can be found on the Hummy.org site." Link is long since dead, how do I find this information out ? Thank you |
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#332 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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You're right, that link has been dead for a very long time. Several times I asked the moderators to allow me to edit the link but they ignored my requests. See post #125 for the current working link.
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#333 |
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Forum Member
Join Date: Jul 2003
Location: Staffs/Salop/Cheshire borders
Posts: 128
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Replacing the Clock Module
Another link to the instructions: HERE
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#334 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Quote:
.....
Some household meths (the purple stuff) and a few cotton buds later, the display was back in time to record Sunday night's footy, proving the recording system wakes properly from standby. During cleaning with wet buds the meths seemed to dissolve a coating which was almost invisible at first when dry, but which showed up as patches of a dark matt residue when the meths evaporated before the cleaning was complete. It made it very easy to see where to carry on with further washing. I guess the colour of the residue was produced by a combination of the dye in the meths, as well as dust and felt tip pen ink mixing with the coating as it dissolved. Eventually the meths dried without dark streaking and wiping with dry buds left a shiny surface. At that point I thought it was worth trying the reassembly and all went well. ..... Best wishes, Plodder. |
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#335 |
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Forum Member
Join Date: Sep 2006
Posts: 22
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Another satisfied customer.
Came home from a 2 week cruise on Monday and settled down the next evening to catch up on Corrie. Horror of horrors, no Corrie had been recorded while we were away! How could we possibly carry on life without knowing what had happened on The Street? This dreadful situation has occurred once or twice before to our PVR-9200T.
Turned it off. No clock display, only --:--. Wonder if there is an internal battery that needs replacing? Log in to Digital Spy for the first time in a couple of years and what is the first thing we see? Big-Les' excellent posting on the 9200 --:-- clock problem. The job took 60 minutes to do, excluding lunch break, without any problems. Some minor discolouration around the RTC IC, xtal and 0.22 Farad super cap. Used 'Electrolube ULS Cleaning Solvent' as I prefer to drink my vodka rather than use it for PCB cleaning. Dried it off with a hair drier (actually a hot air gun used with great care so as not to overheat). Lo and behold, now I have the time displayed, albeit dimly, but I'm not going to replace the display 'cos it's still bright enough to read. So many thanks Big-les and also JefUK for excellent dis-assembly instructions. Tom |
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#336 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Quote:
.....
Lo and behold, now I have the time displayed, albeit dimly, but I'm not going to replace the display 'cos it's still bright enough to read. ..... Tom
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#337 |
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Forum Member
Join Date: Apr 2006
Posts: 1,197
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Has anyone worked out who will get this problem and who won't? I bought my 9200T in February 2006 and haven't had any such problem (yet).
Is it related to age, hardware version or what not? Mine is one of the original silver ones with a very quiet fan that is on all the time, version PVR9200T Rev 1.0. |
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#338 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Quote:
Has anyone worked out who will get this problem and who won't? I bought my 9200T in February 2006 and haven't had any such problem (yet).
Is it related to age, hardware version or what not? Mine is one of the original silver ones with a very quiet fan that is on all the time, version PVR9200T Rev 1.0. |
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#339 |
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Forum Member
Join Date: Dec 2002
Location: Hibaldstow, N. Lincolnshire
Posts: 5,985
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Has anyone studied the connection with smokers/nonsmokers? In my earlier life as a manufacturing electronics engineer (HiFi and test instruments) some service jobs on our equipment had to be seen to be believed! The nicotine/tar gunge on front panels and circuit boards was amazing. I gave the awful habit up some considerable time before (in 1991) getting my 9200TB and the clock has been OK.
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#340 |
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Forum Member
Join Date: Nov 2008
Posts: 271
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Quote:
Has anyone studied the connection with smokers/nonsmokers? In my earlier life as a manufacturing electronics engineer (HiFi and test instruments) some service jobs on our equipment had to be seen to be believed! The nicotine/tar gunge on front panels and circuit boards was amazing. I gave the awful habit up some considerable time before (in 1991) getting my 9200TB and the clock has been OK.
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#341 |
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Forum Member
Join Date: Dec 2012
Posts: 3,457
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I would like to add my thanks to the many people who have contributed to this thread. I got the dreaded four dashes yesterday and as soon as the words supercapacitor and cleaning were mentioned I knew you were all correct and what the fault was. I have replaced countess numbers of these troublesome things in professional equipment over the years. The only solution is to remove the capacitor, clean the board and replace it with a new one (I think it says .22F on it but the printing is a bit faded). Maplin seem to no longer sell them in their shops but as an emergency measure I can confirm that a 330uf 16v electrolitic will keep the clock going for at least 5 mins, long enough for a short power cut, or until you get around to ordering one from the web.
These things just fail, quite often in my experience, its nothing to do with a smoky environment, you are not to blame for their demise. |
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#342 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Quote:
I would like to add my thanks to the many people who have contributed to this thread. I got the dreaded four dashes yesterday and as soon as the words supercapacitor and cleaning were mentioned I knew you were all correct and what the fault was. I have replaced countess numbers of these troublesome things in professional equipment over the years. The only solution is to remove the capacitor, clean the board and replace it with a new one (I think it says .22F on it but the printing is a bit faded). Maplin seem to no longer sell them in their shops but as an emergency measure I can confirm that a 330uf 16v electrolitic will keep the clock going for at least 5 mins, long enough for a short power cut, or until you get around to ordering one from the web.
These things just fail, quite often in my experience, its nothing to do with a smoky environment, you are not to blame for their demise. |
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#343 |
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Forum Member
Join Date: Dec 2012
Posts: 3,457
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Quote:
The super capacitor has nothing to do with the problem that causes the clock to stop in STANDBY.
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#344 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Quote:
Well all I can say is that cleaning had no effect but as soon as I replaced the supercapacitor (admittedly with an electrolytic as I didn't have the correct one to hand) the clock came back to life and has been OK for over 24 hours now. It was also happy to be powered down for several minutes whilst it was being reinstalled in the living room. The same supercapacitors fail regularly in Ikegami broadcast monitors locking the monitor's function select buttons. Sometimes leakage is visible, sometimes not. Removing the capacitor and cleaning the board restores all the functions but it has to be replaced to retain the memory. Sony ST-SE300 FM tuners suffer the same problem (loss of station memory in that case). We used to get the capacitors from CPC Farnel or Radio Spares. Maplin used to sell them for about £5 but don't seem to any more.
Of the two boards I repaired I replaced Martin's supercapacitor because I'd abused his original, coulrophobe's original supercapacitor was left in place and as far as I'm aware both boards are still working. Many people have performed the clock problem repair successfully without replacing the supercapacitor, it is not at fault and plays no part in the clock failure discussed in this thread. |
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#345 |
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Forum Member
Join Date: Dec 2012
Posts: 3,457
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Clock worked with machine on , dashes in standby. When these things leak there is often little to see but the board becomes contaminated. The contamination is often under the capacitor and it has to be removed to clean the board properly. The capacitor may still maintain part of its value but will slowly become ineffective. Sloshing cleaner under the cap may well restore operation but it should be replaced as they are not expensive. They are not ordinary C's and can produce a wide range of puzzling effects as they die. I have replaced a considerable number of them over the years in broadcast equipment, we never put anything back in service with aging super caps as in our world time is money.
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#346 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Again, the supercapacitor plays no part in the clock failure discussed in this thread.
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#347 |
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Forum Member
Join Date: Dec 2012
Posts: 3,457
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Farnell part EECS0HD224H £1.59
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#348 |
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Forum Member
Join Date: Aug 2013
Posts: 1
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No doubt you are sick and tired of hearing this (Big_les and other posters) but a GIGANTIC THANK YOU for the solution to the clock problem. I was resigned to having to ditch my faithfull 9200 and invest in a new PVR. Did a search and found DigitalSpy with the instructions. Nothing to lose so had a go...took me under an hour (cleaned the board 4 times with drying between) Clock showing again in standby for ther last 3 days. Did I say Thank you? Now if only there was a way to revive the fading clock display figures........
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#349 |
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Forum Member
Join Date: Nov 2007
Posts: 2,669
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Thank you for the thank you, pleased to see there are still some people finding my instructions useful. My clock display is about as dim as a glow-worm’s armpit but it doesn't worry me as it's only slightly dimmer than my Panasonic recorder that I purposely set to dim. Someone was going to donate an unused 9200 to me to investigate the dim display problem but then went quiet on me.
It looked to me that it is the display itself that deteriorates so I doubt I could have done anything, and I certainly wasn't going to mess around with my 9200 any more.
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#350 |
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Forum Member
Join Date: Apr 2006
Posts: 1,197
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Quote:
Thank you for the thank you, pleased to see there are still some people finding my instructions useful. My clock display is about as dim as a glow-worm’s armpit but it doesn't worry me as it's only slightly dimmer than my Panasonic recorder that I purposely set to dim. Someone was going to donate an unused 9200 to me to investigate the dim display problem but then went quiet on me.
It looked to me that it is the display itself that deteriorates so I doubt I could have done anything, and I certainly wasn't going to mess around with my 9200 any more. |
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