#jcm2000
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f355 · 2 years ago
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JCM2000 TSL100 の修理 (BIAS抵抗)
この個体は比較的初期のもので、高圧の基板上の配線が相互に近いために古くなるとそこからリークして、結果 BIAS が暴走するという持病がある。対策版基板が Marshall から供給されたそうだが完璧ではなく、それもすでに供給終了。結局のところ、基板を削って空中配線というのが対策らしい。 入手したときには、この症状のために 1Ωの BIAS抵抗が過電流のためか抵抗値が180kΩになっていた。 手持ちに適切な1Ωの抵抗がなかったけど、とりあえず動かしてみたかったので、セラミックコンデンサみたいな形のヒューズ抵抗があった。抵抗値も1Ω。これなら電流が流れ過ぎて一度切れても復帰する。 というような修理をして、とりあえずふつうに音も出るようになっていたのだが、ATTも入れていい気なってフルテンで鳴らしたら、燃えた(汗) ということは、やはり対策はうまくいかなかったのだろうか。でも、ヒューズ抵抗も怪しいので、ちゃんとした1Ωの抵抗を買ってきて、そのままになっていた。 やっとワークベンチが空いたので、開けてみたら写真のように真っ黒。完全に焼損していた。しかし、もう一方は大丈夫。
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基板やヒューズまで真っ黒だが、拭いたらまあまあきれいになった。ここのヒューズも切れていなかった。HTヒューズは切れていたが。 思ったより軽症で他に影響は出ていなそうなので、ヒューズ抵抗だけ1Ωの抵抗に付け替えた。 BIASは70mAに設定。
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音が何だかちょっと小さめな気もするけど、こんなもんだったかなあ。怖いのでフルテンにはしないで使おうと思うので、こんな感じでよいか。 というわけで、HT-5RHと TSL100 の2台のギターアンプの修理を完了。 久々に無線機の修理に戻るか…
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pedromodesto69 · 6 months ago
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Had a band practice at a spot I’ve never been to before and it was so sick they had heads you could borrow which ruled for me bc mine still inda shop till tomorrow and I hella want a jcm2000 dsl now I was using one and it was insanely sick it was like perfect I can’t believe I used to straight up hate Marshall’s
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petezoom · 6 years ago
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Goodbye 👋🏻 #Marshall #jcm2000 #TSL100 https://www.instagram.com/p/BrTupCuHGt0/?utm_source=ig_tumblr_share&igshid=1efzzulgfd6m8
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viparts-nl · 2 years ago
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junya-koketsu · 4 years ago
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昨日スタジオで、Marshall JCM2000と、Fender Twin Reverbを爆音で鳴らしてきたけど、気持ちよかったわ~! 真空管アンプは爆音で鳴らすに限る SONY #α7III RAW現像 #TAMRON 28-200mm (#A071) https://t.co/hTLTJWGRaS #Junya_Koketsu_Photo #Marshall #JCM2000 #Fender #TwinReverb #ギターアンプ https://t.co/pi4WWxzULQ https://www.instagram.com/p/CNw12-LAQMj/?igshid=196tkewlo7vv2
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handstandrecords · 5 years ago
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My old Marshall JCM2000 guitar head was cursed, but the “Mosh hard” logo modification remains some of my finest DIY handiwork. Today in 2006 the head was stolen out of my car, conveniently the day before I had to record guitar tracks for the Olde Ghost demo. This amp saw many shows but never actually made it onto any records. Eight years earlier, a fuse or circuit crapped out before recording the Excitebike EP, and I had to use my inferior Fender stereo chorus. Cursed I tell you! . . . #marshall #moshhard #jcm2000 #cursed #oldeghost #stolengear #guitarhead #tbt (at New York, New York) https://www.instagram.com/p/B_oBuzrJI6Q/?igshid=1sed5qdcmfd8s
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holbornnick · 5 years ago
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Primo amplificatore portato, prima soddisfazione! Oltre ad esser stato revisionato ed effettuato cambio valvole, il team di #effettidiclara è stato in grado di venirmi incontro e rimodellare questo combo tsl602 in una testata, consigliando anche l'acquisto di una 1922 senza un graffio! Set perfetto, già provata, verrà spinta al massimo con furore al prossimo evento! Un applauso a tutti i ragazzi del laboratorio di Cinecittà per lo straordinario lavoro. . . . . . . . . . . #marshall #amplifier #music #rock #rockmusic #pickoftheday #marshallamps #jcm #jcm2000 #marshallamplification #marshallamp #highgain #marshalljcm2000 #marshalljcm #dapaura #esageroconglihashtag #comefunzionaig #sonovecchioperpostare #devosmetterla (presso Rome, Italy) https://www.instagram.com/p/B7Y2CqBoAWj/?igshid=aswuet15nf6g
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bmcguitar · 5 years ago
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The love of loud #Repost @thecilikis (@get_repost) ・・・ Chasing the #tone New #dsl100 #amp head to backup the #jcm2000 head to keep this tone #train a movin' #marshallamps #marshallamplification #chasingtone #tonechaser #gearhead #gearporn #gearybusey #tonehead #valvetone #tubetone #ampheaven #toneheaven #australianmetal #instrumentalmusic #brismetal #goldcoastmusic #guitar #guitartone #guitargear https://www.instagram.com/p/B1bjJwdBPYR/?igshid=j6kpsjcemucq
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danmatzy · 7 years ago
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Two-hour test...after biasing Everything works fine and my amp sounds extremely fine and unexpectedly new: clean channel is warm and balanced in frequencies; crunch channel is simply fantastic; lead channel is stunning... The right tubes can give to your amp the possibility to have the sound that you are searching for! #Marshall #marshallamps #tsl100 #jcm2000 #guitar #guitarworld #guitarplayer #guitarist #music #tubes #guitaramp #sound #searching #play #tubeampdoctor #musicismylife #musician #ilovemyfollowers #haveaniceday
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catwo2 · 5 years ago
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色々試してみる。 #jackson #jacksonstarsguitar #jacksonguitars #soloist #rrv #marshall #marshallamps #jcm2000 (First Avenue) https://www.instagram.com/p/Bx8JS8tAyt0/?igshid=54xlndwh5ugh
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daneguitariststuff · 5 years ago
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My Guitar room/home studio 91 Jackson Dinky - modified with AHB3 pick ups, All upgraded Gotoh hardware/ Hipshot bridge, a JS3 neck 94 Jackson EX Rhoades V with EMG 81/85 and all upgraded Gotoh Hardware 2011 Gibson Explorer Standard with custom scratch plate 2011 Gibson Les Paul R7 Goldtop 2012 Ibanez RG350MZ 2013 Fender USA Stratocaster / Fat 50′s pick ups Mesa Triple Rectifier/Orange 212 Closed back cabinet Marshall JCM2000 DSL100 / 1960A with V30′s
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thewayofsteel-blog · 7 years ago
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Nothing further from aluminum than pure British Steel.
More steel ahead, brothers
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petezoom · 6 years ago
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Welcome ❤️ #Marshall #marshallamps #jcm2000 #jcm2000dsl #dualsuperlead @marshallamps_uk https://www.instagram.com/p/BrVhM29n9xq/?utm_source=ig_tumblr_share&igshid=w9w87fdyz4m8
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oakandslate · 5 years ago
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Marshall JCM2000 TSL100 | Charvel DK24 ProMod.
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junya-koketsu · 4 years ago
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昨日スタジオで、Marshall JCM2000と、Fender Twin Reverbを爆音で鳴らしてきたけど、気持ちよかったわ~! 真空管アンプは爆音で鳴らすに限る SONY #α7III RAW現像 #TAMRON 28-200mm (#A071) https://t.co/hTLTJWGRaS #Junya_Koketsu_Photo #Marshall #JCM2000 #Fender #TwinReverb #ギターアンプ https://t.co/pi4WWxzULQ https://www.instagram.com/p/CNw1qd4Aeqs/?igshid=1mjrxeznzqpow
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bill-ur-sag · 5 years ago
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Me doing Entombed riffs. Lockdown boredem
Gear used
G400 Pro SG.
Boss MIJ - HM2
Marshall Jcm2000
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