I got the remote controller successfully last time, and after a while, I tried to use it in my living room, but the remote controller does not work! It seems strange, last time it worked fine 、、、、I saw remote controller through the camera, it is firing properly, so it seems something is wrong with the TV unit.
↓リモコンは正常に発光している
↑Remote controller is emitting light normally.
↓取説によると、リモコン受光部はこの辺に有るらしい。
↑According to the instruction manual, the remote control receiver is located here.
↓さっそくばらしてみる。
↑Let's take it apart.
↓ヘラで勘合を外して裏蓋を外す。
↑Remove the back cover by removing the joint with a spatula.
↓下部の方はほこりが結構溜まっている。
↑There is a lot of dust in the lower part.
↓スピーカ、台座のホルダー、その下のプラスチックカバーのネジを外す。
↑Unscrew the pedestal holder, and the plastic cover. And took off the speaker.
↓下のプラスチックカバーを外した所。
↑The lower plastic cover is removed.
↓リモコン受光部の基板が入ってる所のネジを外す。
↑Unscrew the screws where the board of the remote control receiver is.
↓あれ！なんか錆び（緑青(ろくしょう)）が出ているぞ！
↑Oh, no! There is some rust (greenish blue) on the surface!
↓あちゃ～、こりゃ基板が冠水した跡だな、、、、修理が大変！
↑Oh no, it looks like the circuit board was flooded. 、、、、 It's hard to repair!
どうやら、リモコン受光部付近に水が掛かり、中に侵入したのに、外だけしか拭いてなくて、内部に残った水が電蝕を起こした様だ。これは修理が厄介だな、、、、
It looks like water got on the remote control receiver and got inside, but I only wiped the outside, and the water left inside caused electrical corrosion. This is a messy repair. 、、、、
↓先ずは洗剤で綺麗に緑青を落とす。
↑First, I'm going to clean off the greenish-blue with detergent.
↓新たに酸化する前に急いで乾かす。
↑Hurry up and dry it before it oxidizes anew.
↓酸化しているパターンや部品の端子をカッターで磨き半田付け。
↑Polish the oxidized patterns and terminals of the components with a cutter and solder them.
↓仮組して試験すると無事にリモコンが効く様になった。
↑I assembled it temporarily and tested it. It is OK.
↓本体を組みなおし動作確認。リモコンから制御できている。
↑I reassembled the TV and checked. The remote control is working.
↓取説によるとオフで赤、オンで緑のLED点灯の様だが、緑が点かない。
↑According to the instruction manual, the red LED lights up when off and the green LED lights up when on, but the green LED does not light up.
↓再び分解して、不良個所を探す。R202からQ201のBへの導通がない。
↑Disassembled the unit again and looked for the defective part: no continuity from R202 to B of Q201.
R202は電極剥離しているので手持ちの1608の2.2kΩをQ201のBに直接はんだ付けし、そこからリードで基板のパターンに接続する。
R202 is stripped of its electrode, so I soldered 2.2kΩ of 1608 I had directly to Q201's B, and connected it to the board pattern with a lead from there.
↓無事に緑も点灯するようになった。
↑The green light is now safely lit as well.
↓再び本体に組み込み、動作確認。今度は問題無い様だ。
↑I assembled it into the TV again and checked. Its OK this time.
ジャンク詐欺だと思ってた110円テレビ。なんとも厄介な冠水ジャンクだった。
冠水ジャンクは程度にもよるが修復が困難な場合が多く、基本的に手を出さないのだが、今回は見えない所で冠水したジャンクをつかまされた。運よく冠水被害が少なく、簡単な回路基板上だけの被害で何とかなって良かった。
A ￥110 TV that I thought was a junk scam. It was a very troublesome flooded junk.
Flooded junks are often difficult to repair, and I generally avoid dealing with them, but this time I got a flooded junk that I couldn't see. Luckily, there was not much damage from the flooding, and I was lucky that the damage was only on a small circuit board.
2024.04.14 (5/28 UP)
①ジャンク詐欺？110円テレビ SONY KJ-32W500C
②リモコン ゲット SONY KJ-32W500C
③なんと冠水ジャンク！ SONY KJ-32W500C リモコン受光部修理
①Junk fraud? 110yen TV SONY KJ-32W500C
②Get remote controller for SONY KJ-32W500C
③What a water damaged junk! SONY KJ-32W500C Remote control receiver repair
