hi i would like to know if you fixed it and how please im having the exact same problemHey guys, newbie here. Need help to resurrect my beloved TECHNICS SC-CH7 mini HIFI system. Had this system since forever and recently rediscovered it up in the attic and would like to have it working again. I might have to take it to a proper service guy, but until I find a reliable place, I will see if it's doable on my own. Also, I could give a few pointers at the repair shop based on AAC feedback.
The TECHNICS SC-CH7 mini hifi system consists of:
SL-CH7 (CD PLAYER)
RS-CH7 (TAPE DECK)
Seen related threads regarding this unit but didn't find anything related to my problem.
So when I found the system, it had all the interconnecting cables between the units there, so no cables missing (all cables looked to be in working conditions). Except for the power cable which was missing, but I was able to find a generic model to replace it with. When I connected the power cable and switched on the mains at the back, it wouldn't turn on. So I went to open the the unit that connects to the main power, which is the amplifier. Sure enough, I found one busted fuse out of the three fuses I could find. The replacement fuse didn't look anything like the original fuse but I made sure it had similar specs. Original fuse was T1 25A 250V and replacement is F 25A (it doesn't say 250V anywhere but I checked with the seller). See attached pic for comparison.
So after the fuse replacement, the amplifier turned on. The little red light in front was on, indicating that it's on standby mode. While on standby mode however, the TUNER (which has the power switch to turn on all the other units) should indicate it has power by showing the time on the display. In this case it doesn't and with that I'm not able to turn on the system. I'm guessing the TUNER unit is not powered? Could the fuse be the issue here?
I've attached a few images to show the overall condition of the system, see if you guys can spot anything or figure out as to what could be the problem. Thanks so much for looking into this post, any help & feedback is greatly appreciated.
burned part inside the amplifier which I saw on another thread as well:
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inside tape deck:
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inside cd player:
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signs of burns inside of tuner and cd cover plates:
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original fuse (left) replacement fuse (right):
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redlight on, standby mode:
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please help me i have also looked inside the amplifier and the same place was burned