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Daewoo DS608P - is fault due to C101 cap??
I already have a working DS608P which is a good performer. I also find
the RF modulator useful for use with small portables etc. I recently bought 2 DS608P's (although one is the Labgear version) at a car boot. There were no remotes (but I already have one) but I though I would take a chance. Looking back, I should have guessed they were all duff sets :) Having searched the internet , it looks like the most common fault is C101 , a 22uF 400v cap in the PSU. The "Labgear" is completely dead and there is a buzz - I presume this is coming from the switch mode PSU - so I guess the fault is indeed C101. The Daewoo DS608P powers up OK (red/green led) and I get the "Menu" screen BUT it is in Black & White (NOT colour) and no signals are detected. Is this fault also likely to be a duff C101 - maybe the voltage from the PSU is low?? Or is the tuner front end duff? I have tried resetting the DS608P using the red button but no luck. I have not tried this yet, but one thought I had was maybe the engineering menu had been "tweaked" perhaps in a misguided attempt to find a solution for the "green screen" problem. However , I would have thought that the "reset" proceedure would reset everything back to the factory default values (but maybe not the engineering values??). Any other thoughts as to why the DS608P is in B&W and no signals are detected? Thanks |
Daewoo DS608P - is fault due to C101 cap??
wrote in message
ups.com... I already have a working DS608P which is a good performer. I also find the RF modulator useful for use with small portables etc. I recently bought 2 DS608P's (although one is the Labgear version) at a car boot. There were no remotes (but I already have one) but I though I would take a chance. Looking back, I should have guessed they were all duff sets :) Is it really worth bothering with obsolete SetPal boxes when you can get something just as good for under 30 pounds at Asda or Tesco? Regards Mike. |
Daewoo DS608P - is fault due to C101 cap??
As a fellow "G8/GW8" radio amateur , you should know its the challenge
of fixing a duff set bought for a few bob :) Also , most of the modern Freeview boxes don't have an RF modulator. 73 On 1 Aug, 19:57, "Mike GW8IJT" wrote: wrote in message ups.com...I already have a working DS608P which is a good performer. I also find the RF modulator useful for use with small portables etc. I recently bought 2 DS608P's (although one is the Labgear version) at a car boot. There were no remotes (but I already have one) but I though I would take a chance. Looking back, I should have guessed they were all duff sets :) Is it really worth bothering with obsolete SetPal boxes when you can get something just as good for under 30 pounds at Asda or Tesco? Regards Mike. |
Daewoo DS608P - is fault due to C101 cap??
wrote in message ups.com... I already have a working DS608P which is a good performer. I also find the RF modulator useful for use with small portables etc. I recently bought 2 DS608P's (although one is the Labgear version) at a car boot. There were no remotes (but I already have one) but I though I would take a chance. Looking back, I should have guessed they were all duff sets :) Having searched the internet , it looks like the most common fault is C101 , a 22uF 400v cap in the PSU. The "Labgear" is completely dead and there is a buzz - I presume this is coming from the switch mode PSU - so I guess the fault is indeed C101. The Daewoo DS608P powers up OK (red/green led) and I get the "Menu" screen BUT it is in Black & White (NOT colour) and no signals are detected. Is this fault also likely to be a duff C101 - maybe the voltage from the PSU is low?? Or is the tuner front end duff? I have tried resetting the DS608P using the red button but no luck. I have not tried this yet, but one thought I had was maybe the engineering menu had been "tweaked" perhaps in a misguided attempt to find a solution for the "green screen" problem. However , I would have thought that the "reset" proceedure would reset everything back to the factory default values (but maybe not the engineering values??). Any other thoughts as to why the DS608P is in B&W and no signals are detected? C101 usually cures 99 per cent of power supply related faults, especially if the capacitor has a silver label on its side. However I've got several duff tuner boards with similar symptoms to the second receiver, all of them went down during a thunderstorm, which appears to be sufficient to cause failure without involving any kind of direct hit. BTW way can you change the power supply board from the dead receiver with the one from no signals and see what happens? Although having said that it's more than a possibility that you may have purchased them from someone in the trade with a workshop full of unrepairable bits and pieces, who has decided to try and make a few pounds at a car boot sale, so I wouldn't be holding my breath that you'll be lucky enough to make one good one out of the two. Thanks |
Daewoo DS608P - is fault due to C101 cap??
Graham W - TV is correctly tuned. I am using a simple portable with
manual tuning. Ivan - thanks. I'd thought about swapping boards. You are also correct about somebody clearing out a workshop full of duff Freeview boxes!! Although maybe they did not realise that the Daewoo and Labgear are identical!! Does a power supply fault usually mean that the box is completely dead - so if the LED's light up its not C101? Thanks On 1 Aug, 21:22, "Ivan" wrote: wrote in message ups.com... I already have a working DS608P which is a good performer. I also find the RF modulator useful for use with small portables etc. I recently bought 2 DS608P's (although one is the Labgear version) at a car boot. There were no remotes (but I already have one) but I though I would take a chance. Looking back, I should have guessed they were all duff sets :) Having searched the internet , it looks like the most common fault is C101 , a 22uF 400v cap in the PSU. The "Labgear" is completely dead and there is a buzz - I presume this is coming from the switch mode PSU - so I guess the fault is indeed C101. The Daewoo DS608P powers up OK (red/green led) and I get the "Menu" screen BUT it is in Black & White (NOT colour) and no signals are detected. Is this fault also likely to be a duff C101 - maybe the voltage from the PSU is low?? Or is the tuner front end duff? I have tried resetting the DS608P using the red button but no luck. I have not tried this yet, but one thought I had was maybe the engineering menu had been "tweaked" perhaps in a misguided attempt to find a solution for the "green screen" problem. However , I would have thought that the "reset" proceedure would reset everything back to the factory default values (but maybe not the engineering values??). Any other thoughts as to why the DS608P is in B&W and no signals are detected? C101 usually cures 99 per cent of power supply related faults, especially if the capacitor has a silver label on its side. However I've got several duff tuner boards with similar symptoms to the second receiver, all of them went down during a thunderstorm, which appears to be sufficient to cause failure without involving any kind of direct hit. BTW way can you change the power supply board from the dead receiver with the one from no signals and see what happens? Although having said that it's more than a possibility that you may have purchased them from someone in the trade with a workshop full of unrepairable bits and pieces, who has decided to try and make a few pounds at a car boot sale, so I wouldn't be holding my breath that you'll be lucky enough to make one good one out of the two. Thanks- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
Daewoo DS608P - is fault due to C101 cap??
wrote in message ups.com... Graham W - TV is correctly tuned. I am using a simple portable with manual tuning. Ivan - thanks. I'd thought about swapping boards. You are also correct about somebody clearing out a workshop full of duff Freeview boxes!! Although maybe they did not realise that the and Labgear are identical!! Does a power supply fault usually mean that the box is completely dead - so if the LED's light up its not C101? It can be the cause of a variety of strange faults, including being completely dead, and if it's got the silver sticker on the side then it should be replaced as a matter of course. I would be surprised if anyone in the trade didn't realise that the Daewoo and the Labgear weren't identical receivers, and because the whole thing comprises of three separate boards which can easily be replaced in a few minutes, I would also be very surprised if this hadn't already been attempted, although as long as you know exactly what you're doing it's bound to be worth a try. Thanks On 1 Aug, 21:22, "Ivan" wrote: wrote in message ups.com... I already have a working DS608P which is a good performer. I also find the RF modulator useful for use with small portables etc. I recently bought 2 DS608P's (although one is the Labgear version) at a car boot. There were no remotes (but I already have one) but I though I would take a chance. Looking back, I should have guessed they were all duff sets :) Having searched the internet , it looks like the most common fault is C101 , a 22uF 400v cap in the PSU. The "Labgear" is completely dead and there is a buzz - I presume this is coming from the switch mode PSU - so I guess the fault is indeed C101. The Daewoo DS608P powers up OK (red/green led) and I get the "Menu" screen BUT it is in Black & White (NOT colour) and no signals are detected. Is this fault also likely to be a duff C101 - maybe the voltage from the PSU is low?? Or is the tuner front end duff? I have tried resetting the DS608P using the red button but no luck. I have not tried this yet, but one thought I had was maybe the engineering menu had been "tweaked" perhaps in a misguided attempt to find a solution for the "green screen" problem. However , I would have thought that the "reset" proceedure would reset everything back to the factory default values (but maybe not the engineering values??). Any other thoughts as to why the DS608P is in B&W and no signals are detected? C101 usually cures 99 per cent of power supply related faults, especially if the capacitor has a silver label on its side. However I've got several duff tuner boards with similar symptoms to the second receiver, all of them went down during a thunderstorm, which appears to be sufficient to cause failure without involving any kind of direct hit. BTW way can you change the power supply board from the dead receiver with the one from no signals and see what happens? Although having said that it's more than a possibility that you may have purchased them from someone in the trade with a workshop full of unrepairable bits and pieces, who has decided to try and make a few pounds at a car boot sale, so I wouldn't be holding my breath that you'll be lucky enough to make one good one out of the two. Thanks- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
Daewoo DS608P - is fault due to C101 cap??
Thanks Ivan
I've had a quick look at the Labgear PSU - there is no leakage around the cap. There is also no silver sticker. However , the "top" of the cap is very "dome" shaped rather than flat. Is this an indication of a duff C101? Cheers On 1 Aug, 22:25, "Ivan" wrote: wrote in message ups.com... Graham W - TV is correctly tuned. I am using a simple portable with manual tuning. Ivan - thanks. I'd thought about swapping boards. You are also correct about somebody clearing out a workshop full of duff Freeview boxes!! Although maybe they did not realise that the and Labgear are identical!! Does a power supply fault usually mean that the box is completely dead - so if the LED's light up its not C101? It can be the cause of a variety of strange faults, including being completely dead, and if it's got the silver sticker on the side then it should be replaced as a matter of course. I would be surprised if anyone in the trade didn't realise that the Daewoo and the Labgear weren't identical receivers, and because the whole thing comprises of three separate boards which can easily be replaced in a few minutes, I would also be very surprised if this hadn't already been attempted, although as long as you know exactly what you're doing it's bound to be worth a try. Thanks On 1 Aug, 21:22, "Ivan" wrote: wrote in message roups.com... I already have a working DS608P which is a good performer. I also find the RF modulator useful for use with small portables etc. I recently bought 2 DS608P's (although one is the Labgear version) at a car boot. There were no remotes (but I already have one) but I though I would take a chance. Looking back, I should have guessed they were all duff sets :) Having searched the internet , it looks like the most common fault is C101 , a 22uF 400v cap in the PSU. The "Labgear" is completely dead and there is a buzz - I presume this is coming from the switch mode PSU - so I guess the fault is indeed C101. The Daewoo DS608P powers up OK (red/green led) and I get the "Menu" screen BUT it is in Black & White (NOT colour) and no signals are detected. Is this fault also likely to be a duff C101 - maybe the voltage from the PSU is low?? Or is the tuner front end duff? I have tried resetting the DS608P using the red button but no luck. I have not tried this yet, but one thought I had was maybe the engineering menu had been "tweaked" perhaps in a misguided attempt to find a solution for the "green screen" problem. However , I would have thought that the "reset" proceedure would reset everything back to the factory default values (but maybe not the engineering values??). Any other thoughts as to why the DS608P is in B&W and no signals are detected? C101 usually cures 99 per cent of power supply related faults, especially if the capacitor has a silver label on its side. However I've got several duff tuner boards with similar symptoms to the second receiver, all of them went down during a thunderstorm, which appears to be sufficient to cause failure without involving any kind of direct hit. BTW way can you change the power supply board from the dead receiver with the one from no signals and see what happens? Although having said that it's more than a possibility that you may have purchased them from someone in the trade with a workshop full of unrepairable bits and pieces, who has decided to try and make a few pounds at a car boot sale, so I wouldn't be holding my breath that you'll be lucky enough to make one good one out of the two. Thanks- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
Daewoo DS608P - is fault due to C101 cap??
On Wed, 01 Aug 2007 18:09:35 -0700,
wrote: However , the "top" of the cap is very "dome" shaped rather than flat. Is this an indication of a duff C101? It certainly is. |
Daewoo DS608P - is fault due to C101 cap??
Alan - thanks for info. I am using the RF modulator and a manual TV -
its just a B&W "menu" screen and no signal detected when scans. I have now looked inside both the Daewoo and Labgear. Daewoo (powers up OK with red/green LED /no signal found/B&W output) : Cap C101 has a "flat" top BUT IC101 which is near C101 has a brown colouration on the PCB surrounding all 8 pins (its a 5H02659R). I think this might be due to excess heat - but could just be normal? Also, the green base on the "middle" PCB appears very dull and patchy - looks a bit like water damage? There is also some light rusting around the tuner screening and the back of the coax sockets. Maybe the Daewoo was stored in a damp environment? Assuming the brown colouration around IC101 is OK , then hopefully the PSU is OK Labgear (completely dead) : as already mentioned , cap C101 has a "domed" top so must be duff!! IC101 is different from the Daewoo - its a 4 pin 5L0265R mounted vertical to the board (like a voltage reg). There is some very light brown colouration around the PCB holes but you have to look carefully - nothing like the Daewoo where the brown marking spreads all around IC101 - although the body of the Labgear IC101 is raised on its legs above the PCB whereas the Daewoo IC101 is resting on the PCB. Any other thoughts? Thanks On 2 Aug, 18:00, (Alan Pemberton) wrote: wrote: Any other thoughts as to why the DS608P is in B&W and no signals are detected? My first DS608P went 'pop' when I was playing about with an indoor aerial in a dry, staticky environment. The rf input stage seems a bit fragile. Are you getting colour on the rf output? To tune it in, find a blank channel on the telly, press the red button on the back of the Daewoo for six seconds and wait. The modulator will step slowly through the 48 available channels. When it reaches the one on the telly, press Select smartly. The scart output is switchable between YUV, RGB and S-video, but in each case the composite video pin carries PAL (it should carry only Y in S-video and YUV, but the SetPal is non-standard. At least, mine is). To enter the engineering menu press Status Select Text Text Select There are some handy colour bars on the last option (or first if you work backwards). -- Alan Pemberton Sheffield, South Yorkshire, England To e-mail me directly, please visit http://www.pembers.freeserve.co.uk/index.html#Mail-me |
Daewoo DS608P - is fault due to C101 cap??
wrote in message oups.com... Alan - thanks for info. I am using the RF modulator and a manual TV - its just a B&W "menu" screen and no signal detected when scans. I have now looked inside both the Daewoo and Labgear. Daewoo (powers up OK with red/green LED /no signal found/B&W output) : Cap C101 has a "flat" top BUT IC101 which is near C101 has a brown colouration on the PCB surrounding all 8 pins (its a 5H02659R). I think this might be due to excess heat - but could just be normal? Also, the green base on the "middle" PCB appears very dull and patchy - looks a bit like water damage? There is also some light rusting around the tuner screening and the back of the coax sockets. Maybe the Daewoo was stored in a damp environment? Assuming the brown colouration around IC101 is OK , then hopefully the PSU is OK Labgear (completely dead) : as already mentioned , cap C101 has a "domed" top so must be duff!! IC101 is different from the Daewoo - its a 4 pin 5L0265R mounted vertical to the board (like a voltage reg). There is some very light brown colouration around the PCB holes but you have to look carefully - nothing like the Daewoo where the brown marking spreads all around IC101 - although the body of the Labgear IC101 is raised on its legs above the PCB whereas the Daewoo IC101 is resting on the PCB. AIUI you've got two' identical' receivers, one working but presumably with a dud tuner, and the other one not showing very much in the way of signs of life, so there is a reasonable assumption that its power supply might not be working. If they both have identical power supplies (not always the case) then it's only a single plug from the ps into the main board, therefore logic would dictate that you take the 'known' working power supply and plug it into the dead receivers main board and see what happens. Or conversely try unpluging the tuner board from the dead receiver and pluging it into the one which can't find any channels, or perhaps you have already tried these options and I am completely misunderstanding your problem?... also there more than possibly, as I have previously pointed out, both may boxes may well made up of all dud panels. Any other thoughts? Thanks On 2 Aug, 18:00, (Alan Pemberton) wrote: wrote: Any other thoughts as to why the DS608P is in B&W and no signals are detected? My first DS608P went 'pop' when I was playing about with an indoor aerial in a dry, staticky environment. The rf input stage seems a bit fragile. Are you getting colour on the rf output? To tune it in, find a blank channel on the telly, press the red button on the back of the Daewoo for six seconds and wait. The modulator will step slowly through the 48 available channels. When it reaches the one on the telly, press Select smartly. The scart output is switchable between YUV, RGB and S-video, but in each case the composite video pin carries PAL (it should carry only Y in S-video and YUV, but the SetPal is non-standard. At least, mine is). To enter the engineering menu press Status Select Text Text Select There are some handy colour bars on the last option (or first if you work backwards). -- Alan Pemberton Sheffield, South Yorkshire, England To e-mail me directly, please visit http://www.pembers.freeserve.co.uk/index.html#Mail-me |
Daewoo DS608P - is fault due to C101 cap??
On 2 Aug, 21:01, "Ivan" wrote:
wrote in message oups.com... Alan - thanks for info. I am using the RF modulator and a manual TV - its just a B&W "menu" screen and no signal detected when scans. I have now looked inside both the Daewoo and Labgear. Daewoo (powers up OK with red/green LED /no signal found/B&W output) : Cap C101 has a "flat" top BUT IC101 which is near C101 has a brown colouration on the PCB surrounding all 8 pins (its a 5H02659R). I think this might be due to excess heat - but could just be normal? Also, the green base on the "middle" PCB appears very dull and patchy - looks a bit like water damage? There is also some light rusting around the tuner screening and the back of the coax sockets. Maybe the Daewoo was stored in a damp environment? Assuming the brown colouration around IC101 is OK , then hopefully the PSU is OK Labgear (completely dead) : as already mentioned , cap C101 has a "domed" top so must be duff!! IC101 is different from the Daewoo - its a 4 pin 5L0265R mounted vertical to the board (like a voltage reg). There is some very light brown colouration around the PCB holes but you have to look carefully - nothing like the Daewoo where the brown marking spreads all around IC101 - although the body of the Labgear IC101 is raised on its legs above the PCB whereas the Daewoo IC101 is resting on the PCB. AIUI you've got two' identical' receivers, one working but presumably with a dud tuner, and the other one not showing very much in the way of signs of life, so there is a reasonable assumption that its power supply might not be working. If they both have identical power supplies (not always the case) then it's only a single plug from the ps into the main board, therefore logic would dictate that you take the 'known' working power supply and plug it into the dead receivers main board and see what happens. Or conversely try unpluging the tuner board from the dead receiver and pluging it into the one which can't find any channels, or perhaps you have already tried these options and I am completely misunderstanding your problem?... also there more than possibly, as I have previously pointed out, both may boxes may well made up of all dud panels. Any other thoughts? Thanks On 2 Aug, 18:00, (Alan Pemberton) wrote: wrote: Any other thoughts as to why the DS608P is in B&W and no signals are detected? My first DS608P went 'pop' when I was playing about with an indoor aerial in a dry, staticky environment. The rf input stage seems a bit fragile. Are you getting colour on the rf output? To tune it in, find a blank channel on the telly, press the red button on the back of the Daewoo for six seconds and wait. The modulator will step slowly through the 48 available channels. When it reaches the one on the telly, press Select smartly. The scart output is switchable between YUV, RGB and S-video, but in each case the composite video pin carries PAL (it should carry only Y in S-video and YUV, but the SetPal is non-standard. At least, mine is). To enter the engineering menu press Status Select Text Text Select Thanks Ivan. Is brown colouration on the PCB around IC101(5H02659R) on the "working PSU" normal? If so , I will try this PSU in the "dead" Labgear. Thanks There are some handy colour bars on the last option (or first if you work backwards). -- Alan Pemberton Sheffield, South Yorkshire, England To e-mail me directly, please visit http://www.pembers.freeserve.co.uk/index.html#Mail-me- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
Daewoo DS608P - is fault due to C101 cap??
On 2 Aug, 21:29, wrote:
On 2 Aug, 21:01, "Ivan" wrote: wrote in message roups.com... Alan - thanks for info. I am using the RF modulator and a manual TV - its just a B&W "menu" screen and no signal detected when scans. I have now looked inside both the Daewoo and Labgear. Daewoo (powers up OK with red/green LED /no signal found/B&W output) : Cap C101 has a "flat" top BUT IC101 which is near C101 has a brown colouration on the PCB surrounding all 8 pins (its a 5H02659R). I think this might be due to excess heat - but could just be normal? Also, the green base on the "middle" PCB appears very dull and patchy - looks a bit like water damage? There is also some light rusting around the tuner screening and the back of the coax sockets. Maybe the Daewoo was stored in a damp environment? Assuming the brown colouration around IC101 is OK , then hopefully the PSU is OK Labgear (completely dead) : as already mentioned , cap C101 has a "domed" top so must be duff!! IC101 is different from the Daewoo - its a 4 pin 5L0265R mounted vertical to the board (like a voltage reg). There is some very light brown colouration around the PCB holes but you have to look carefully - nothing like the Daewoo where the brown marking spreads all around IC101 - although the body of the Labgear IC101 is raised on its legs above the PCB whereas the Daewoo IC101 is resting on the PCB. AIUI you've got two' identical' receivers, one working but presumably with a dud tuner, and the other one not showing very much in the way of signs of life, so there is a reasonable assumption that its power supply might not be working. If they both have identical power supplies (not always the case) then it's only a single plug from the ps into the main board, therefore logic would dictate that you take the 'known' working power supply and plug it into the dead receivers main board and see what happens. Or conversely try unpluging the tuner board from the dead receiver and pluging it into the one which can't find any channels, or perhaps you have already tried these options and I am completely misunderstanding your problem?... also there more than possibly, as I have previously pointed out, both may boxes may well made up of all dud panels. Any other thoughts? Thanks On 2 Aug, 18:00, (Alan Pemberton) wrote: wrote: Any other thoughts as to why the DS608P is in B&W and no signals are detected? My first DS608P went 'pop' when I was playing about with an indoor aerial in a dry, staticky environment. The rf input stage seems a bit fragile. Are you getting colour on the rf output? To tune it in, find a blank channel on the telly, press the red button on the back of the Daewoo for six seconds and wait. The modulator will step slowly through the 48 available channels. When it reaches the one on the telly, press Select smartly. Success!!! I switched the PSU from the "no signal" Daewoo into the "dead" Labgear. Labgear now works - so, as expected, it was a duff C101 in the Labgear PSU. As well as the "domed" top of the C101 cap , there also appeared to be electrolyte on the reverse of the PCB around the C101 solder joints. The Labgear dates from 2002 and last did a software scan on 6th June 2006 - so its been duff for over a year. I look forward to seeing the "engineers" who knowingly sold me the duff boxes at the car boot - I'll ask for a partial refund as only one was working!! I guess the "no signal" Daewoo has a duff front end device. Although I'm not sure why the Menu screen is in B&W. Cheers all -- Alan Pemberton Sheffield, South Yorkshire, England To e-mail me directly, please visit http://www.pembers.freeserve.co.uk/index.html#Mail-me- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
Daewoo DS608P - is fault due to C101 cap??
Success!!! I switched the PSU from the "no signal" Daewoo into the
"dead" Labgear. Labgear now works - so, as expected, it was a duff C101 in the Labgear PSU. As well as the "domed" top of the C101 cap , there also appeared to be electrolyte on the reverse of the PCB around the C101 solder joints. The Labgear dates from 2002 and last did a software scan on 6th June 2006 - so its been duff for over a year. I look forward to seeing the "engineers" who knowingly sold me the duff boxes at the car boot - I'll ask for a partial refund as only one was working!! I guess the "no signal" Daewoo has a duff front end device. Although I'm not sure why the Menu screen is in B&W. Cheers all Thanks for the tips on the common Daewoo fault. I dug out my faulty box yesterday and replaced C101 with 47 mF 450 V cap and it's sprung back to life! My daughter will be pleased. Now to get the other faulty box going - a Digifusion FRT100. Wonder what the common fault on this one is? Thanks again, Eddie |
Daewoo DS608P - is fault due to C101 cap??
Alan Pemberton wrote:
It's not 'normal', but it's what you get! Ivan is the expert on SetPal repairs and as he has joined the thread he'll be able to offer more help. Oooo, Er... Ivan!, If you are looking here, can you offer some advice on *directly* flashing upto date firmware on these boxes? Hidden JTAG port or something? -- Adrian C |
Daewoo DS608P - is fault due to C101 cap??
On Sun, 5 Aug 2007 19:14:42 UTC, Adrian C wrote:
Alan Pemberton wrote: It's not 'normal', but it's what you get! Ivan is the expert on SetPal repairs and as he has joined the thread he'll be able to offer more help. Oooo, Er... Ivan!, If you are looking here, can you offer some advice on *directly* flashing upto date firmware on these boxes? Hidden JTAG port or something? Well mine, posted under "Daewoo Dead" a couple of weeks back, seems to have a totally different PSU board to the ones discussed here. An engineer friend replaced several bits on the PSU, this one at least is *not* switched mode, and got power back - but it is very much in dodo mode now. :-) On power on either no lights, the green light or both at once. Reset button does nowt. No output to the TV and it can't see the remote - which *is* OK - checked with my digital camera. Someone was asking in the other thread for the remote - Please contact. -- Regards Dave Saville NB Remove -nospam for good email address |
Daewoo DS608P - is fault due to C101 cap??
Alan - thanks for the info and zenar tip
The "working" Daewoo has the latest firmware version 0157. This is the same as my original fully working Daewoo. As with my original Daewoo , the "fixed" Daewoo does crash when I am rapidly surfing across channels. I previously found that the fix is just to switch off the MHEG (teletext) feature - very stable afterwards!! So, if you want they latest firmware , it might not necessarily be very stable!! I think when Tesco's sold a batch of "old" DS608's last year (I guess they were refurbs) , firmware 0156 (not 0157) was installed (I think). I have "another" DS608 which only has firmware 0060 (I think). It does not have the volume up/down feature and is missing some info on the screen displays - but its very stable even with MHEG enabled. On 6 Aug, 16:25, "Dave Saville" wrote: On Sun, 5 Aug 2007 19:14:42 UTC, Adrian C wrote: Alan Pemberton wrote: It's not 'normal', but it's what you get! Ivan is the expert on SetPal repairs and as he has joined the thread he'll be able to offer more help. Oooo, Er... Ivan!, If you are looking here, can you offer some advice on *directly* flashing upto date firmware on these boxes? Hidden JTAG port or something? Well mine, posted under "Daewoo Dead" a couple of weeks back, seems to have a totally different PSU board to the ones discussed here. An engineer friend replaced several bits on the PSU, this one at least is *not* switched mode, and got power back - but it is very much in dodo mode now. :-) On power on either no lights, the green light or both at once. Reset button does nowt. No output to the TV and it can't see the remote - which *is* OK - checked with my digital camera. Someone was asking in the other thread for the remote - Please contact. -- Regards Dave Saville NB Remove -nospam for good email address |
Daewoo DS608P - is fault due to C101 cap??
On 5 Aug, 12:28, "Eddie G0EHV" wrote:
Success!!! I switched the PSU from the "no signal" Daewoo into the "dead" Labgear. Labgear now works - so, as expected, it was a duff C101 in the Labgear PSU. As well as the "domed" top of the C101 cap , there also appeared to be electrolyte on the reverse of the PCB around the C101 solder joints. The Labgear dates from 2002 and last did a software scan on 6th June 2006 - so its been duff for over a year. I look forward to seeing the "engineers" who knowingly sold me the duff boxes at the car boot - I'll ask for a partial refund as only one was working!! I guess the "no signal" Daewoo has a duff front end device. Although I'm not sure why the Menu screen is in B&W. Cheers all Thanks for the tips on the common Daewoo fault. I dug out my faulty box yesterday and replaced C101 with 47 mF 450 V cap and it's sprung back to life! My daughter will be pleased. Now to get the other faulty box going - a Digifusion FRT100. Wonder what the common fault on this one is? Problem with the 5v Rail See here for cures. http://www.digitalspy.co.uk/forums/s...d.php?t=316192 |
Daewoo DS608P - is fault due to C101 cap??
"Adrian C" wrote in message ... Alan Pemberton wrote: It's not 'normal', but it's what you get! Ivan is the expert on SetPal repairs and as he has joined the thread he'll be able to offer more help. Oooo, Er... Ivan!, If you are looking here, can you offer some advice on *directly* flashing upto date firmware on these boxes? Hidden JTAG port or something? Contrary to what Allan has suggested I'm certainly no expert! except that (before my enforced retirement) I sold a reasonable number of these receivers at the beginning of the Freeview service. Other than C101 and several tuners which have been taken out by static during a thunderstorm (as Alan has pointed out, they seem very susceptible to static) they have proved to be very reliable. Also as I lived in an area where the green screen of death (as it was known) was a problem they supplied me with some software and a modified receiver to connect to a computer which would record the actual moment of the 'green death', my task was to then email the data so that they could attempt to analyse what was happening...the fault could sometimes be provoked by changing channels in a certain sequence. One of the engineers was going to furnish me with a schematic of the power supplies, which as the only really serviceable part of the receiver would have been very useful, but unfortunately it appears that the company ceased to exist before I was able to acquire it. I've compiled a few photos of various bits and pieces here. http://picasaweb.google.co.uk/Ivan230542/SetpalPhotos?authkey=35HHNYnzT3g -- Adrian C |
Daewoo DS608P - is fault due to C101 cap??
"Alan Pemberton" wrote in message rve.co.uk.invalid... wrote: So, if you want they latest firmware , it might not necessarily be very stable!! I think when Tesco's sold a batch of "old" DS608's last year (I guess they were refurbs) , firmware 0156 (not 0157) was installed (I think). 0156 was more stable than 0157. It is possible to switch between the two (assuming they are the two that are in memory) via the engineering menu. Note that if the older version is very old (I don't know which version it applies to) you cannot then switch back to the later version. But the menu warns you of this when it tells you which version you are about to change back to. A bit off topic Alan, on your web page about Teletext, the screen shot which shows your name also has the name of 'Bob McGregor' at the top of the list, I knew Bob and can (remember him building that particular Wireless World Teletext decoder (an awful lot of hard wired 74 TTL ICs IIRC). I haven't seen or heard of him in well over 20 years, but who knows he may still be alive and well and contributing to Usenet :o) -- Alan Pemberton Sheffield, South Yorkshire, England To e-mail me directly, please visit http://www.pembers.freeserve.co.uk/index.html#Mail-me |
Daewoo DS608P - is fault due to C101 cap??
Ivan - thanks for useful pictures of DS608 PCB's.
The PSU board even shows the brown scorching marks around IC101 which is also on my PSU board!!! Its interesting that the scorching in on the latest Mk3 board!! Any idea if any of the "modern" Freeview boxes have the same (or better) front end sensitivity as the DS608? The only other Freeview I have with an RF modulator is a Hauppauge - it works well and the front end is maybe only a few dB behind the Daewoo. Cheers On 7 Aug, 19:26, "Ivan" wrote: "Alan Pemberton" wrote in message rve.co.uk.invalid... wrote: So, if you want they latest firmware , it might not necessarily be very stable!! I think when Tesco's sold a batch of "old" DS608's last year (I guess they were refurbs) , firmware 0156 (not 0157) was installed (I think). 0156 was more stable than 0157. It is possible to switch between the two (assuming they are the two that are in memory) via the engineering menu. Note that if the older version is very old (I don't know which version it applies to) you cannot then switch back to the later version. But the menu warns you of this when it tells you which version you are about to change back to. A bit off topic Alan, on your web page about Teletext, the screen shot which shows your name also has the name of 'Bob McGregor' at the top of the list, I knew Bob and can (remember him building that particular Wireless World Teletext decoder (an awful lot of hard wired 74 TTL ICs IIRC). I haven't seen or heard of him in well over 20 years, but who knows he may still be alive and well and contributing to Usenet :o) -- Alan Pemberton Sheffield, South Yorkshire, England To e-mail me directly, please visit http://www.pembers.freeserve.co.uk/index.html#Mail-me- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
Daewoo DS608P - is fault due to C101 cap??
"Alan Pemberton" wrote in message erve.co.uk.invalid... Ivan wrote: A bit off topic Alan, on your web page about Teletext, the screen shot which shows your name also has the name of 'Bob McGregor' at the top of the list, I knew Bob and can (remember him building that particular Wireless World Teletext decoder (an awful lot of hard wired 74 TTL ICs IIRC). I haven't seen or heard of him in well over 20 years, but who knows he may still be alive and well and contributing to Usenet :o) I've had a couple of comments about that shot http://www.pembers.freeserve.co.uk/Teletext/Oracle-Thanks.jpg from people who knew the people listed, but never the people themselves. I can't guarantee that any on the list are still extant, as I myself am a hologram. LOL! -- Alan Pemberton Sheffield, South Yorkshire, England To e-mail me directly, please visit http://www.pembers.freeserve.co.uk/index.html#Mail-me |
Daewoo DS608P - is fault due to C101 cap??
Ivan wrote:
I've compiled a few photos of various bits and pieces here. http://picasaweb.google.co.uk/Ivan230542/SetpalPhotos?authkey=35HHNYnzT3g Many thanks... I'll have a play with mine when its decommisioned... :-) -- Adrian C |
Daewoo DS608P - is fault due to C101 cap??
"Adrian C" wrote in message ... Ivan wrote: I've compiled a few photos of various bits and pieces here. http://picasaweb.google.co.uk/Ivan230542/SetpalPhotos?authkey=35HHNYnzT3g Many thanks... I'll have a play with mine when its decommisioned... :-) Thanks for the response, originally I did have some spec sheets and a lot of useful information from Steve Farmer at NovaPal. However having suffered a heart attack 12 months ago I have to say that I haven't been anywhere near as enthusiastic or as involved with many things as I once was, consequently I have discarded quite a lot of stuff that I had accumulated over a prolonged period of time. A few weeks ago I posted asking for people's experiences about (an intended purchase) the Humax 9200 PVR which were in the main very positive, and have to say that now we're used to it me and my misses love it to bits and certainly wouldn't go back to using a VCR. Last week whilst channel surfing on the Humax my attention was caught by an offer on Price Drop TV, it was for a Digifusion FVRT 95 PVR which was selling for £51.00 (a very basic machine in comparison to the Humax) but I thought ' what the hell' it has an 80 gigabyte hard drive and I paid more than that for 160 GB HD less than a couple of years ago. It duly arrived three days ago, was a piece of cake to set up, has nice menus and has performed perfectly since, if it works as well until the guarantee has expired then I'll have no complaints. Checking user comments on the net seemed to reveal that quite a number of disillusioned purchasers in times gone by appeared to have suffered from various power supply problems, which as far as I can gather appeared to be related to some kind of underrated external unit. However this one out has a very well made and substantial looking internal unit, so only time will tell. My point in mentioning all of this is that when I think that I was 'installing' and selling the Daewoo Freeview receiver for £129.99 when they first hit the market, compared to how cheap much more sophisticated equipment can be purchased nowadays, it makes me wonder if it's any longer worth while even bothering to undo a few screws to replace a fuse which has expired from my old age! -- Adrian C |
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