- Boss RE20 Space Echo effects pedal - 3 Updates
- Aiwa PAL and NTSC VHS horizontal bars - 4 Updates
- LCR meter recommendations? - 1 Update
| dansabrservices@yahoo.com: Dec 09 09:58AM -0800 In an SMD device codebook I have, XG is a BZX284-B13 and is listed as a 0.4W 13V zener. An XGs is an BCR523 which is an NPN DTR 50V 0.5A. Hope this helps, Dan |
| N_Cook <diverse@tcp.co.uk>: Dec 09 07:42PM > In an SMD device codebook I have, XG is a BZX284-B13 and is listed as a 0.4W 13V zener. An XGs is an BCR523 which is an NPN DTR 50V 0.5A. > Hope this helps, > Dan Whatever the XG are, they are true 3 pin active SOT23 devices, not 2 plus common |
| N_Cook <diverse@tcp.co.uk>: Dec 10 02:43PM On 09/12/2015 15:16, N_Cook wrote: > and 4 pins with all sorts of DC and varying somewhat, in effects on or > off mode. > So off with that SMD and a 4558 will go in there and see what happens Normal function returns for all that Star-Trekky stuff. 4.1V dc (half 8.2V) now on both 4558 pins ins and outs, all 12 such pins. I'll try and find out how beer got to where it pooled , as not an obvious landing place. |
| John-Del <ohger1s@aol.com>: Dec 09 01:12PM -0800 On Wednesday, December 9, 2015 at 9:22:58 AM UTC-5, Chuck wrote: > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus I talked to the owner and he again told me that this machine played his PAL tapes on an RCA 32" analog CRT TV. It was put away for a while and now he wants to play some tapes from home for his grand kids, and that's why he tried it recently. I tried it again today and it now plays the PAL prerecorded tape with a normal, clear, and stable picture when NTSC output is selected. Unfortunately, it's in black and white but at least it's now in horiz sync. I'm thinking there might be a horiz phase adjustment somewhere I can tweak. If the horiz is right on the edge of break, it might be causing the loss of color. I tried cooling the machine down to see if I could get the horiz to drift again, but it hasn't (suspecting aging electrolytics). Anyone have a link to a SM? |
| jurb6006@gmail.com: Dec 09 04:30PM -0800 >"We have 2 of these vcrs at work and they will play back PAL tapes >with >an NTSC output" I stand corrected then. Probably a pretty expensive unit in its time. |
| jurb6006@gmail.com: Dec 09 04:41PM -0800 I would first scope the NTSC output and see if there is a color burst. If there is it is likely too far off frequency. If there is not then the color killer is activated. In any event, unfortunately for the guy this is liable to be fairly expensive repair. And then, my highest recommendation to anyone still using any format VCR is to copy everything to DVDs. In fact they now have super long lived DVDRs for archival purposes because they have found that the regular DVDRs do not last forever. Sorry about my error, but the format convertor is not a standard feature of multi-rate VCRs. |
| Chuck <chuck@mydeja.net>: Dec 10 08:02AM -0600 On Wed, 9 Dec 2015 13:12:03 -0800 (PST), John-Del <ohger1s@aol.com> wrote: >I talked to the owner and he again told me that this machine played his PAL tapes on an RCA 32" analog CRT TV. It was put away for a while and now he wants to play some tapes from home for his grand kids, and that's why he tried it recently. >I tried it again today and it now plays the PAL prerecorded tape with a normal, clear, and stable picture when NTSC output is selected. Unfortunately, it's in black and white but at least it's now in horiz sync. I'm thinking there might be a horiz phase adjustment somewhere I can tweak. If the horiz is right on the edge of break, it might be causing the loss of color. I tried cooling the machine down to see if I could get the horiz to drift again, but it hasn't (suspecting aging electrolytics). >Anyone have a link to a SM? John, This one should be close. http://www.manualslib.com/manual/469008/Aiwa-Hv-Mx100.html --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
| jeanyves <jeanyves@nowhere.com>: Dec 09 09:19PM +0100 On 2015-11-21 01:24:25 +0000, Cursitor Doom said: > these devices. > thanks, > CD today the DEREE DE-5000 is the best bang for buck considering LCR meters precision those $20 multi testers are not precision instruments, but can be sufficiant for troubleshooting, not more. for me they are not lcr meters. you can find deree de5000 on ebay ( in japan) for some $100 shipped dont forget the tweezers probes it is useless without. example link here : http://kripton2035.free.fr/LCR%20meters/lcr-deree5000-cl.html -- Jean-Yves. |
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