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Yahoo Bid Home Appliances, Audio & Video, Camera Audio Equipment Amplifiers General Crown
注目!! ちょっと面白い CROWN D-45 ぜひ見てください!!
        

交換したパーツ(ほかにもまだりました)

  • Product Quantity
    : 1
  • Starting Bid
    :1,000円
  • Highest Bidder
    : momo / Rating:206
  • Listing Date
    :2026年01月19日 20時41分
  • Bidding closes on
    :2026年01月25日 21時40分
  • Auction Number
    :c1216555487
  • Condition
    :Damaged and stained (specify in description)
  • Automatic Extension
    :Yes
  • Authentication
    :Yes(Description)
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. Plug-in electrical appliances are only shipped by air (shipping by sea requires commodity inspection)
*これは最近このオークションで手に入れたものですが。。。。
  実はいわゆるハマりました!!

徹底的な改造品だったのです、それも鳴らない!

1)メイン基板にパーツは殆ど交換
2)ブリッジはダイオード4個にて組み立て
3)電源コード取り換え
4)電源トランスの配線間違え
5)その他

*メイン基板のパーツ交換で主なものは積層セラミックをフィルムに交換してありましたがこれはどうせならと私は再度すべてポリプロピレンに交換しました。

*抵抗類もほとんど交換してありましたがこれは殆ど無意味と思えました、数が多いので一部のみ交換してあとは交換されたものをそのまま使用しています。
 ここで改良点は560Ωの減圧抵抗は熱が出るので基板外に出しました、この方法は私が初めて始めたものです、クラウンの1UDシリーズはこの抵抗のせいで基板が焼けている物がとても多くあります。基盤が逆さになっているせいです。

*基板の半田面がもうめちゃくちゃな状態でこの修正に2日かかりました。

*オペアンプは他の物に交換してサブ基板を使用してありましたが元に戻しました、オペアンプはオリジナルの33079を使いました(新品)

*電源コードは太いものを使ってありましたがこのアンプの電源ヒューズは2Aです、太いケーブルは必要といたしません、ちょうど手元に取り外したものが何本かあったので程度の良いものを使いました(クラウンに使ってあったものです)

*ブリッジも元に戻しました容量は1ランクアップしました(此れがのちに役たちました)

*VRも交換してノブも他社製から純正品に交換しました。

*その他にも例えば電源パイロットなど変更部分があります、写真を拡大してご覧ください。

ここまでに3日かかったのですが実はまだ終わりませんでした!!
!電源トランス不良!
2次側外してもヒューズがぶっ飛びました。
**対策**
*手持ちの多分D75のトランスに載せ替え
 D75の頃はトランスに加熱時の対策はありませんでしたので今回は109度の温度ヒューズを取り付けておきました。
 2次側の電圧は同じなので問題ありません。
 ピーク時の電源供給能力は増えたと思います。
なので悪いことは何もありません。
360ccの軽自動車に660ccのエンジン積んだと思ってください。

*ご注意!!
CROWN D-45は120V仕様ですが本機は100Vに変更してありますので昇圧はしないでください。トランスを交換したことで可能になりました。
よりクリアでメリハリの利いた感じになったと思っています。
 ぜひお試しいただきたいです。

*お届け後のクレーム及び返品はお受けいたしません、そのような商品ではありません。

*ご使用にあたって自己責任100%をご了解いただける方のみお願いいたします。

*本機の使用によって万一他の機器に障害が及びましてもその責任はお取りできません。

*下部に穴があけられていますが調整用のようなのでそのままにしています。

*私はアナログ時代の音響・映像機器の修理をしておりました、危険なことは致しておりません、現在は趣味です。
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Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
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    Product name: 注目!! ちょっと面白い CROWN D-45 ぜひ見てください!!
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my