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| IZZI |
 Posted: Wed Jun 22, 2005 10:39 am Post subject: |
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Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia
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tu la pasal.. kedai mana la yg tak berinformasi tu?
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| SANGAP |
| Posted: Wed Jun 22, 2005 11:07 am Post subject: |
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Joined: 20 Jun 2005
Posts: 497
Location: KUANTAN/PJ
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cis!cis!hidup2 aku tertipu!alamak bistuh camne skang ek?rase2 bleh ke aku mintak tukar ke ape ke ek kat kedai tu?aku baru bli dlm tak lbh 5 bulan kot.kedai tak berinformasi & aku pon sengal gak main bli je hehe.papehal tengkiu la sume ek
skang ni aku tgh pikir camne nak delete thread ni dan offer adapter2 aku utk dijual huehe.murah je rm100 utk 2 huaha.ade sesape nak bli?komfom bleh pakai punye!especially kat m'sia harhar
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the sangap guest! |
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| deadzid |
| Posted: Wed Jun 22, 2005 11:35 am Post subject: |
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Mod Squad
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Location: Shah Alam
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| SANGAP wrote: | cis!cis!hidup2 aku tertipu!alamak bistuh camne skang ek?rase2 bleh ke aku mintak tukar ke ape ke ek kat kedai tu?aku baru bli dlm tak lbh 5 bulan kot.kedai tak berinformasi & aku pon sengal gak main bli je hehe.papehal tengkiu la sume ek
skang ni aku tgh pikir camne nak delete thread ni dan offer adapter2 aku utk dijual huehe.murah je rm100 utk 2 huaha.ade sesape nak bli?komfom bleh pakai punye!especially kat m'sia harhar | oi.. tak baik aniaya orang lain.. ko try la mintak refund balik kat kedai yg jual tu... cakap la bende tu hangit bila pakai... takde warranty ke?
tak baik aniaya orang lain
tak baik aniaya orang lain
tak baik aniaya orang lain
tak baik aniaya orang lain
tak baik aniaya orang lain
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| afiqme |
| Posted: Wed Jun 22, 2005 11:37 am Post subject: |
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Joined: 05 Dec 2003
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Location: Kuala Lumpur
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| ultraman_cosmo |
| Posted: Wed Jun 22, 2005 12:06 pm Post subject: |
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Joined: 29 Oct 2004
Posts: 1665
Location: Mines resort city
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Lama dah juga aku pakai PSA belom ader lagi problem cam tu.
Sebenarnya, bebaik skit pasal voltage adapter ne. Yer lah ader yang diguna utk 240v or 130v...
Tapi utk regulated tak der masalah kalo stakat 230v and 240v.
Tapi sebenar nya paling penting adapter tu kene regulated. regulated ne dapat pastikan voltage sentiasa sama kalo ader berlaku electric blow ker aper. Dan kengkadang adapter biasa kat pasa malam, walo pun tunjuk 9v tapi voltage sebanarnya mung terlebih atau terkurang. Kalo pake regulated adapter, sekiranya ader high voltage masuk ia takkan effect kerana output akan tetap ter"regulated" kepada 9v seperti yang kita tetapkan.
Adapter akan over flow kalo pakai lama sangat and banyak sangat sambungannya. Biasanya berepa mili ampier juga penting dalam ceta adapter ne. Aderter pasa malam biasanya 100mA jer... katakan satu gadget boss pakai 50mA. Then kita pacak 3 gadet maka gadget akan sedut 150mA kesemuanya akan menyebabkan adapter buat kerja over and mungkin blow.
Kalo nak kongsi gadget dengan satu adapter kene kira bera total ampier yang akan digunakan. Setiap gadget tak sama arus dia. Check kat balakang gadget pasti ader berapa arus (current) dalam unit mili Ampier.
Aku pakai adapter winstar yang regulated 1500mA, rega dalam RM60 cam tu. Aku pernah check semua voltage dia memang tepat berbanding adapter biasa kat pasar malam.
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| IZZI |
| Posted: Wed Jun 22, 2005 12:08 pm Post subject: |
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Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia
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sangat berinformasi utk org jahil mcm aku.. thanks en farid! bila aku dpt dtg rumah ko ni.. nak rompak GT-8 ko la..
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| that_vendor |
| Posted: Wed Jun 22, 2005 12:30 pm Post subject: |
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Joined: 25 May 2005
Posts: 148
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| izuanhafez wrote: | aku pun tak tau la.. aku pun baru nak beli bende ni. Adapter yang boleh digunakan terus utk 5 stompbox/pedals mcm ni
apa brand yg ok dan berapa price range dia? |
ini kau suruh arakian / Jahn buat pun boleh!!! 
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| IZZI |
| Posted: Wed Jun 22, 2005 12:45 pm Post subject: |
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Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia
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pakai adapter biasa boleh ker beb? aku mana la tau benda2 mcm ni.. bedroom player la katakan.. baru nak start mengumpul pedal ni.. hehhe
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| that_vendor |
| Posted: Wed Jun 22, 2005 1:10 pm Post subject: |
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Joined: 25 May 2005
Posts: 148
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wan,
tanye Jahn, dia tau laa apa nak buat! bagi die, benda nie kacang je...
... better laa dr kau spend RM kat benda² yg lebih krg sama. but kosmetik kurang laa sket, baru laa nampak mcm custom-made...
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| IZZI |
| Posted: Wed Jun 22, 2005 1:23 pm Post subject: |
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Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia
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hahahhaha ko mmg tak habis2 dgn custom.. guitar SRV ko tu bagi aku la..boleh buat dia nampak mcm custom.. tukarkan gold hardware dia dgn squier .. mesti nampak custom.
tp aku dgr cerita ko beli 1979 punya original fender? mesti mahal gila..
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| IZZI |
| Posted: Wed Jun 22, 2005 1:31 pm Post subject: |
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Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia
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ok ni ada basic info aku dpt..
What's the difference between ACA and PSA?
Powering pedals is a mystery, indeed. Something that works for one pedal might not work for the next, and while it's possible to understand and explain most of these irregularities, some just can't be explained...
Basics
There are three basic features of DC power adaptors that we need to keep track of: voltage, current and regulated/unregulated
* A fresh 9v battery will provide about 9.6 volts when you measure it. This drops to about 9 volts as soon as it goes into a pedal which draws a little more current than the multimeter. This is because a battery is an unregulated source - as the current goes up, the voltage drops. There's a fixed amount of power built into the battery, so when a circuit asks for more current, it has no alternative than to drop the voltage.
* A regulated adapter works from a far bigger power source, and can therefore keep the voltage constant, regardless of the current draw. But as the adapter itself is the limit, rather than the available power, it will burn out when asked to provide more current than it's rated for. Boss calls this type of adapter PSA.
* An unregulated adapter works more like a battery - it will lower the voltage as the current rises, but not completely. Sooner or later it will burn out too, if the current draw exceeds the adapters' limit. Boss calls this type of adapter ACA.
The daisy chain thing
When powering a Boss ACA (old-style) pedal from a 9v PSA adapter, the LED barely lights up. This is normal and expected behaviour, since the 9 volts fed to the pedal really is too little - it wants 12 volts, remember? But when the power is being provided via a daisy-chain, with other PSA pedals in the chain, the LED suddenly lights up as normal... I investigated the issue, and sure enough, my CE-2 didn't want to work with the PSA adapter alone. When I added a daisy chain and connected a Blues Driver to it, there was no change - the CE-2's LED still wouldn't light up. But when I added a signal cable between the pedals, the thing shone as bright as ever! What happens is that all the pedals in the daisy chain share a common ground, which bypasses the voltage limiting components in the ACA pedal(s), causing the CE-2 (in this case) to receive the full 9 volts. Obviously, this won't work with an isolated power supply like the Voodoo Lab Pedal Power 2, since the isolated outputs prevent common grounds from forming. But it works with all non-isolated power supplies, and daisy chain cables.
To add another layer of confusion, I just recently came across a mid '80s CE-2 and an early Taiwan DS-1 (also mid '80s) that worked just fine straight from a 9 volt PSA adapter. I checked it out, to see if they had been modified, but it seems that they never had any of the voltage limiting components. There were no components missing, no wires moved - and still the pedals worked from a 9 volt supply...
From all this, we can deduct:
Three basic rules about Boss pedals (and one exception):
* If it says "PSA" on the bottom, use a 9 volt regulated supply.
* If it says "ACA" on the bottom, check if it's produced before or after 1997. The easiest way is to plug in the PSA adapter - if the LED lights up properly, it's most likely a post-1997 model, and will work with the regulated supply. It may still sound best from an ACA supply (9 volts, then), but the difference will be marginal at best. By the way, the only ACA pedals produced after 1997 are the SD-1, BF-2, GE-7, OC-2, DS-1, PH-2 and CS-3.
* If it says "ACA" on the bottom, and the PSA adapter doesn't light up the LED properly (or the pedal isn't one of those listed above), it wants 12 volts unregulated power to work properly.
* Unless... you are using a daisy chain. In that case, the pedal will work with 9 volts, as long as there's a 'proper' 9 volt pedal in the chain with it. Some 12 volt ACA pedals will therefore actually work fine, as long as they are being fed via a daisy chain...
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| ultraman_cosmo |
| Posted: Wed Jun 22, 2005 2:49 pm Post subject: |
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Location: Mines resort city
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| izuanhafez wrote: | | pakai adapter biasa boleh ker beb? aku mana la tau benda2 mcm ni.. bedroom player la katakan.. baru nak start mengumpul pedal ni.. hehhe |
Aku pernah pakai adapter murah beli kat maidin... hahhaah.
Benda cam ne ikut nasib... Adapter selalu blow kalo electric kat umah tak stabil... macam first aku kata dulu, satu soket kita sambung semua amp, tv, gadget dengan ectention yang panjang berjela. Electrik kurang stabil biasanya ader kat umah flat lama lama or litar kat floor kolej aku dedulu... hahahah. kalo bernasib baik tak der peak voltage... selamat ler... tapi kalo ader boleh hancus semua adapter.
Adapter yang tak guna regulated ne biasanya gunakan pembahagi voltage, aku terangkan dengan ayat yang mudah di faham...
Katalah voltage 240 nak hasilkan 9V... maka 240 akan dibahagi dengan pemalar 26.67 akan hasilkan lebih kurang 9V. Akan berlaku voltage boost terutamanya masa kita on or tutup switch electrik... Dan peak voltage ne bolah sampai 500v ker 1000v tapi dalam masa yang amat pendek. So kalo kita gunakan adapter tanpa regulated... 500v bahagi pemalar tetap 26.67 akan dapat lebig kurang 18v akan menyebab litar terbakar. lebig kurang cam tu lah... Tapi kalo pakai regulated, output akan still 9V.
Tapi sentiasa caculate arus (mA) agar adapter tak buat kerja lebih kerana berkongsi banyak sangat benda.
And chain effect yang terlampau panjang akan menyebabkan signal dari guitar jadi lemah. Sebab tu orang tak susun boss effect kesemua hingga 30 sekali...hhahahah. boss pun recommand 7 ker 8 gadget maksimun dalam chain. Kalo ader banyak sangat try pakai switching AB.
Tapi memang tak di recommand pake adapter biasa walo pun ader tanda sirim or lambang gasing emas. Baik pakai betery tapi tak larat nak beli beterilah plak. Kalo electric kat umah kita stabil rasanya tak ader masalah tapi kita pun tak tau sebenarnya. Aku takut bila main gig dengan extension wire bersepah and semua kongsi satu soket jer nyebabkan sangat berbahaya... Amp amp plak sampai 100w... sampai bukan adapter jer tapi wire extension pun boleh panassss.
Sebaiknya carik ler memanapun asalkan regulated.
Dan satu jer aku ingin nak kongsikan kat korang... Buat lah anti shock kat guitar korang... supaya selamat skit kat dunia ne...hahhaha
Tak berapa penting tapi boleh selamatkan nyawa kita.
cth voltage peak masa on/off switch
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Last edited by ultraman_cosmo on Wed Jun 22, 2005 3:22 pm; edited 1 time in total |
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| Erylasia |
| Posted: Wed Jun 22, 2005 3:00 pm Post subject: |
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| omarjamaludin |
| Posted: Wed Jun 22, 2005 3:08 pm Post subject: |
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| Erylasia |
| Posted: Wed Jun 22, 2005 3:12 pm Post subject: |
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