剛剛係 Glider King
http://www.gliderking.com/modules.php?op=modload&name=XForum&file=viewthread&tid=886 睇到呢個報告。睇黎同 Stanley﹐阿 Kong 有一樣遭遇既仲有好多人。共通點都係隻 servo 好早期就瓜,唔會捱得超過一個 flight.
I bought four digital 5125's for my new Opus W and had a problem(s). As soon as I plugged one servo into the receiver for testing the servo was very jittery and would not center. I was able to return the servo with out any problem to my local hobby shop for an exchange (lucky for me I didn't' glue them in yet). However, I noticed after I glued all four servos in (including the replacement servo) one was very noisy as if it was having difficulty finding a position without any tension on the arm. It was always making a humming sound no matter what.
First flight went smooth with out any apparent problems. All servos were trimmed and operating normal.
Second flight: Big Problem, My plane started flying very weird, so I brought it around for a hard landing that was beyond my control. The noisy servo, which was in my flap bay had malfunctioned. It was so toasted that the servo motor sticker and housing where bubbling from the heat caused by the malfunction. It damaged my top wing skin with an ugly burn mark where it was glued (which looks like a cigar burn mark). Other damages occurred to the wing as a result from the hard landing.
Although these are first set of Digital's I owned, I don't want to sound like I am criticizing 5125 servos but for what it's worth I like the performance and toque these little servos have for the money. They have no gear slop that I can see and center every time I turn my radio on.
I sent Hitec a letter in detail explaining the situation along with the servo back for inspection. It took almost four weeks to get a verdict but here it is:
12/15/03
Dear Orlando,
I am sorry that we have had your servo so long. After looking at it with the technician and reading your description, I can only assume the motor went out. How this happened is very difficult to determine. I told the tech to replace the servo and I am sending you another one as compensation. Though I don't normally do this, I felt it was required this time. The 5125 servos have been very successful for us and are gaining acceptance in the soaring community due to slim packaging and strength. I think the one you had was a fluke and the rest should serve you well.
Regards,
Tony Ohm
Service Manager
Hitec RCD USA, Inc.
Ph: 858-748-8440
Fax: 858-859-2618
If anyone has had similar problems please post it for our fellow flying buddies who might be in the market. I hope it was a streak of bad luck with the servos because I just put the new servo back in and I am going flying today.
Regards
Orlando
12/21/03