- Why CD laser unit fails so often? - 3 Updates
- Goodbye Radio Shack - 2 Updates
- Sony CDP101 repair - 12 Updates
- What is the difference between a BASS Guitar Amp and a STANDARD one? - 1 Update
- Duracell 1432 Flashlight: Battery Drain. - 1 Update
- Of all the stupid things . . . . - 2 Updates
"Miguel Giménez" <me@privacy.net>: May 31 02:29PM +0200 Hi In the last years I have changed twice the laser unit of my Aiwa CD reader and once the unit of my mom's Sony reader. The three were original spare parts, and the three died months after. Why this happen? Do I need to adjust laser current after change? Are they basically unreliable? TIA -- Regards Miguel Giménez |
"pfjw@aol.com" <pfjw@aol.com>: May 31 05:55AM -0700 On Wednesday, May 31, 2017 at 8:30:01 AM UTC-4, Miguel Giménez wrote: > -- > Regards > Miguel Giménez Never had or observed this problem per-se. Many times I have seen the output level of the laser poorly adjusted, poorly focused or not precisely aligned, especially if resulting from a home repair. Admittedly a small sample, perhaps about 20 players in all. Peter Wieck Melrose Park, PA |
"Miguel Giménez" <me@privacy.net>: May 31 06:34PM +0200 > Never had or observed this problem per-se. Many times I have seen the output level of the laser poorly adjusted, poorly focused or not precisely aligned, especially if resulting from a home repair. Admittedly a small sample, perhaps about 20 players in all. > Peter Wieck > Melrose Park, PA The replacements worked OK for some months, then failed abruptly. The symptom was always: insert disk -> some seconds trying to read disk -> disk ejection. May be a focus problem unrelated to laser? Also, there were neither smokers nor floating dust near the devices. -- Regards Miguel Giménez |
"None" <none@nospam.org>: May 31 07:31AM -0400 < thekma @ dumbfuck.org > wrote in message news:3813cea3-6910-4a51-bc36-f9af3e9b5cf6@googlegroups.com... > middle-aged college-educated > white male is a liability, it > seems. Go figure! LOL! "College educated"! When your resume says that it took you seven years trying to get through a two-year community college, employers may not be impressed. They can (and will) do a google search, and find that you've bragged that the only reason you "graduated" was because the faculty was sick of seeing you failing the same classes year after year, and they just wanted to get rid of you. Can you blame them? Nobody wants to see that moronic blank stare, indicating a fog of non-comprehension. If you've found a job at the used crap store, where they're willing to hire a retarded dumb fuck like you, maybe you should keep it instead of pretending that you can handle a real job. Being a fucking moron is a liability. Being unable to add two plus two is a liability. HDKAD. CKWAFA! |
"pfjw@aol.com" <pfjw@aol.com>: May 31 05:51AM -0700 On Wednesday, May 31, 2017 at 7:32:00 AM UTC-4, None wrote: Hi, "Barry"? Once upon a time, you gave reasonable advice. Now it seems you are starting to eat what Phil eats, but without the same level of knowledge. |
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: May 31 06:54AM +1000 On 30/05/2017 9:13 PM, Phil Allison wrote: > In terms of tech specs, sound quality, features and ease of use - it > is still one of the best CD players ever made. **Sound quality? Nope. The CDP701 (released close to the same time as the 101) was far better. I recall listening to both at a Sony demo, through their ES series Sony electronics and those very good flat diaphragm Sony speakers. The 701 completely outclassed the 101. One of my clients had both machines and we listened extensively to them (compared them with 2nd generation master tapes of Hot August Night on his Studer) and the 701 was a far better sounding machine. Even the Sony demo guy, who claimed that there would be no sonic difference, was surprised. That said, a decent multibit machine (like the early Sony and Philips machines) will sound better than those horrible single bit ones released in the late 1980s. -- Trevor Wilson www.rageaudio.com.au |
thekmanrocks@gmail.com: May 30 02:21PM -0700 Trevor Wilson wrote: "On 30/05/2017 9:13 PM, Phil Allison wrote: > In terms of tech specs, sound quality, features and ease of use - it > is still one of the best CD players ever made. **Sound quality? Nope. The CDP701 (released close to the same time as the 101) was far better. I recall listening to both at a Sony demo, through their ES series Sony electronics and those very good flat diaphragm Sony speakers. The 701 completely outclassed the 101. One of my clients had both machines and we listened extensively to them (compared them with 2nd generation master tapes of Hot August Night on his Studer) and the 701 was a far better sounding machine. Even the Sony demo guy, who claimed that there would be no sonic difference, was surprised. That said, a decent multibit machine (like the early Sony and Philips machines) will sound better than those horrible single bit ones released in the late 1980s. -- Trevor Wilson " Was the CDP101 vs 701 test done with the same exact source (CD) in the same listening environment, connected to the same system? Otherwise such tests are invalid. |
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: May 31 07:45AM +1000 On 31/05/2017 6:54 AM, Trevor Wilson wrote: > surprised. That said, a decent multibit machine (like the early Sony and > Philips machines) will sound better than those horrible single bit ones > released in the late 1980s. Was the CDP101 vs 701 test done with the same exact source (CD) in the same listening environment, connected to the same system? Otherwise such tests are invalid. **Did you bother reading what I wrote? Go back and read it CAREFULLY. In truth, the only invalid part of the MANY tests I did, comparing the two machines, was the fact that none were done blind. An oversight I regret. -- Trevor Wilson www.rageaudio.com.au |
Phil Allison <pallison49@gmail.com>: May 30 08:45PM -0700 > (CD) in the same listening environment, > connected to the same system? > Otherwise such tests are invalid. ** TWs listening tests are totally invalid - cos he used the audiophool method. Machine A plays, stop, muck about, have a chat then machine B plays. Absolute bollocks. As a matter of fact, I carried out a blind testing session between my CDP101 and a borrowed CDP701 for a customer. He had a well damped room with Quad ESL63s at the time driven by an expensive Sony amp. It was all nicely set up for best imaging etc. Both CD players were out in the hallway, so he could not see them or me. All I had to do was swap RCA leads and CDs between machines. Try as he might, using his favourite classical tracks, he could not tell the machines apart. Happy that there was no audible difference, he opted to buy the more expensive model. He merely wanted to be *certain* the cheaper model was not actually better. ..... Phil |
thekmanrocks@gmail.com: May 31 01:30AM -0700 Phil Allison wrote: "Try as he might, using his favourite classical tracks, he could not tell the machines apart. Happy that there was no audible difference, he opted to buy the more expensive model. He merely wanted to be *certain* the cheaper model was not actually better. ..... Phil " I rest my case: the SOURCE(what's on the medium) matters most! |
jurb6006@gmail.com: May 31 01:57AM -0700 Does the 101 have the delay to match the phase of the channels ? |
jurb6006@gmail.com: May 31 02:09AM -0700 >"** TWs listening tests are totally invalid - cos he used the audiophool method. Machine A plays, stop, muck about, have a chat then machine B plays. Absolute bollocks. " Actually with stamped CDs it would be valid to just use two copies of the same album. If there is ay doubt switch them but we know that sound quality had very little to do with the audio quality. It is just a matter of how many errors does it have to cover up. They are stamped, you get two of them right next to each other from the shelf and they are likely to be the same batch and have the same errors. And the only errors that will have any real effect on sound quality will be those pertaining to the deemphasis. Two disks and a toggle switch would do just fine. then switch the disks ad see if the more favorable rating follows it ort stays with the player. Kida like splitting a bag of weed when your scalee is broken. "You split I'll pick" or vice versa. Whoever is splittlg is going to get them as close as humanly possible because he knows he gets the smaller one. Or whichever one is perceived as smaller by the picker. Ever hear of scraping ? They use like a gouge to scrape metal plates to within millionths of an inch. There is no reference because these ARE the reference. they are the standard to which the ways of machines must adhere for flatness and straightness. they use three plates, why ? Well, you blue it up and then separate the plates and observe the bluing. This really is an art. You can get two plates pretty flat, but there is ONE way they can be off and you can't tel. That is if one is slightly convex and the other concave. That is the reason for the third plate. It makes that type of error detectable because to match perfectly the third plate would have to be concave or convex and thus would math one of the two other plates but not the other. In other words, all this fiddling switching disks every few minutes is a waste of time. Just switch them and rerun the comparison. Actually I doubt very mny people can hear ant difference between cD players, butin the US would always prefer the one that has a slightly higher output level because it is louder. You want an audio A/B comparison ? Golden Earring - Moontan, on vinyl. Compare the US version to the European version. BIG difference. |
Phil Allison <pallison49@gmail.com>: May 31 02:44AM -0700 jurb...@gmail.com wrote: ------------------------ > Actually I doubt very mny people can hear ant difference between > cD players, butin the US would always prefer the one that has a > slightly higher output level because it is louder. ** CD players are built under license to a standard ( Red Book) which requires the audio output is 2.0V rms for max sine wave level. Makes comparing them pretty easy if you use the same RCA leads and disk. .... Phil |
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: May 31 08:27PM +1000 > Does the 101 have the delay to match the phase of the channels ? **Yes. In the feedback of the OP amp after the buffer stage, one OP amp has a 15k resistor in parallel with a 75pF, whilst the other channel has 16k in parallel with a 75pF cap. A bit of a kludge. As I recall, the CDP701 employed two, separate DACs. I could be wrong, so I'll see if I can locate the manual tomorrow. -- Trevor Wilson www.rageaudio.com.au |
thekmanrocks@gmail.com: May 31 03:54AM -0700 Interesting anecdote: I had an Aiwa bookshelf system set up in the store and playing a Stevie Wonder CD. A guy came over and started playing with it, listening to different tracks etc. He said it sounded great, and he bought it. Next day, he came in, saying he had the "same disc" at home, but that the system did not sound nearly as good as when he played with it in the store. Since he said he had the disc, I asked him to bring his in next time he visited. The next week he came in with the CD, and I compared it to the copy in my inventory: His was a REMASTER.... |
thekmanrocks@gmail.com: May 31 04:12AM -0700 Trevor, jurb: R.E. "phase of the channels" Is there something I don't know about CD players, or how they function? Does the audio arrive out of phase/polarity at some point in the chain inside the player? |
"None" <none@nospam.org>: May 31 07:28AM -0400 <t hekma @gmail.com> wrote in message news:a4021516-0195-49a3-8685-b446a78020ab@googlegroups.com... > Is there something I don't know about CD players, or how they > function? Yes. Pretty much everything about audio is something you don't know. KHF, |
gregz <zekor@comcast.net>: May 31 06:37AM >> sound. > Bass guitar players would only use an 8" speaker for practice, > and then only under duress. Take a look at Phil Jones bass. Lots of little drivers made by him. He must use some eq I figure. Greg |
tabbypurr@gmail.com: May 30 03:16PM -0700 On Tuesday, 30 May 2017 17:24:01 UTC+1, Jeff Liebermann wrote: > something that requires regular recharging, such as handheld radios, > and flashlights. I'm doing something wrong with NiMH, but haven't > figured out what. Discharging too far is their biggest killer. Or to put it another way, mismatched cells. When one flattens the others push current through it & it suffers badly. NT |
oldschool@tubes.com: May 30 11:41AM -0400 On Mon, 29 May 2017 14:40:08 -0500, Ralph Phillips <ralphp@philent.biz> wrote: >I also use Foxit Reader; but that sucker's bloating up like a beached >whale in August in Florida ... >RwP IRFANVIEW can view PDF files??????? That's a new one on me. I have IRFANVIEW installed, for viewing images, but I dont use it too much. I prefer Acdsee. Mostly because IRFANVIEW always forces small images to fit the screen as a default, and small images look like crap when they expanded. So I have to repeatedly resize each and every image to it's ACTUAL size. That gets real tiring. Acdsee shows the images at their actual size, unless the image is larger than my screen, in which t fits the image to the screen. I dont have to keep adjusting the viewed image size, it just views automatically. Because of that, IRFANVIEW is NOT my default viewer. FOXIT Reader was once a decent PDF viewer. I used it for several years. A few months ago, I put a larger hard drive in my laptop. Rather than image my setup from the smaller drive, I decided to just reinstall XP from scratch. I was traveling to a destination, and someone had given me a PDF map. I pulled over at a wayside to view it, when I realized that I did not have a PDF viewer installed. So, I drive to the nearest restaurant that had WIFI, and googled "PDF Viewer". The first one that popped up was Foxit. I was in a hurry and did not have time to piss around. I just wanted to view that PDF map. I installed Foxit reader, and what I saw was so bloated and filled with complicated crap that I wanted no part of it. (And if I recall, it was also full of advertising). I did manage to view my map though. But a few days later, when I was not in a hurry, I again opened that miserable bloated piece of shit, and looked at it. It took me less than 5 minutes to remove it from my computer, and install PDF-Xchange. I thought Adobe's reader was bad, until I tried the latest Foxit. (It's worse). I would not recommend Foxit to anyone..... |
jurb6006@gmail.com: May 30 11:25AM -0700 Here's a nice trick if you are still using XP. (also works in Vista) Get into Windows Explorer and set it to show hidden/system files. Now go find the executable for each of your viewers or aything where you have a choice off different programs to open. Right click the executable and hit "Desktop Create Shortcut. Drag those shortcuts into the \sendto directory, which will be under your username in Documents and Settings. Now when you right click a file you can force it to any of the programs at will and not change the file association. I tried it in Win7 and it gave me all kinds of hell with this access denied. Whose PC is this anyway ? I no longer have Win7. |
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